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  • Advantage of GATE Exams

    Graduate Aptitude Test in Engineering also known as GATE is an all-India examination conducted and administered by the prestigious Indian Institute of Science and seven IITs. GATE is organised by the National Coordination Board, Department of Higher Education, MHRD, and Government of India.   These exams are known as the perfect yardstick to measure and test the calibre of engineering students. It is a myth that the GATE exams are meant for ME./M.Tech which finally leads to a teaching career only.   Are you searching Best Gate Coaching In Pune click here   In this blog, let’s look at The GATE advantage:   Many PSUs such as BHEL, Indian Oil Corporation, NTPC, Bhabha Atomic Research Centre are using the GATE score for selecting candidates. Selected students get a stipend of Rs 8,000 per month during the M.Tech course. Better remuneration is offered to students of M.Tech/M.E as compared to those pursuing B.Tech /B.E. A decent GATE rank assures an excellent job. After completing the M.Tech., at IITs and IISc, you are entitled to get a salary package ranging between Rs 7 lakh to 30 lakh per annum.   After clearing GATE, you can also sign up for Junior Research Fellowship in CSIR Laboratories. M.Tech. Is mandatory for the ones looking to apply for research positions in R&D centres. The GATE score is valid for two years, and the ones who qualify are eligible for a Master’s degree at the National University of Singapore.   Are you looking for Gate Online test Series click here   Raising GATE aspirants From 1.66 lakh in 2008, the number of aspirants touched 8 lakh in 2013. It is one of the most rigorous examinations and aims at testing the students’ capability in engineering concepts along with managerial skills. Engineering subjects cover 70% weight, while General aptitude and Engineering Mathematics cover 15%.   The 3 GATE paper has a total of 65 questions, out of which 30 questions are one mark each and 35 questions are two marks each. To score high, you need to keep in mind that you are judged relatively and not entirely.   For Best GATE 2020 Classes click here

    Gateway Institute
    Gateway Institute
    Career Guidance

    Automated SOLIDWORKS Simulations

    I could really use some help:

    I'm looking for more SOLIDWORKS users who can benefit from automatic SW simulations.

    For that reason, we created this CORTIME Ambassador Program. Simply by joining the program to create a profile and share the word about parametric optimization with your SW network, you get a chance to earn a $100 Amazon gift card each time a referral makes a purchase.

    So, if you like what we do, feel free to help out by telling your friends and we will reward you.

    You can sign up here: https://lnkd.in/d3zfhze CORTIME+2018+-+Short.mp4

    njovef
    njovef
    Software Talks

    Cooling Water Pump Parts-Impeller

    Because of the limitation of installation space and performance requirements, automobile engine cooling water pump has the characteristics of small size, easy manufacture and mass production. Cooling water pump generally consists of pump body, impeller, shaft bearing, water seal, belt pulley and other major components. The pump body pressure chamber can be integrated on the engine cylinder body according to the different structure of the engine cylinder body, or can be configured separately. Impeller is the core functional component of water pump, its diameter, outlet width, blade structure shape and other parameters and structural design directly determine the performance of cooling water pump. There are many kinds of structure of cooling water pump, which can be divided into cast iron impeller, stamping impeller and plastic impeller according to the different material of impeller. Chongqing Feilong Jiangli has mature technology and rich experience for these three impellers, which can meet the performance requirements of customers. According to whether there are cover plates, it can be divided into open impeller and closed impeller. Chongqing Feilong Jiangli mainly produces open impeller according to the shape of impeller blade. Similarly, it can be divided into straight blade impeller, single curvature blade impeller and space twisted blade impeller. Chongqing Feilong Jiangli impeller has different blade shapes, which can meet different needs. With the continuous development of science and technology, only heavy-duty trucks, buses and a few self-owned brand passenger cars still use cast iron impellers in cooling water pumps on the market, Japanese passenger cars now mostly use stamping impellers, and advanced countries such as Europe and the United States mostly use plastic impellers, such as Chongqing Feilong Jiangli's partner Ford, three impellers of domestic self-owned brand cars have been applied, but with it. With the introduction of new technology from abroad, plastic impellers have also been used in newly developed models. The plastic impellers of Feilong Jiang Li in Chongqing have been sold to the Indian market.

    Erica Zhu Feilong Jiangli
    Erica Zhu Feilong Jiangli
    Technology Focus & New Emerging Fields
  • Quizzes

  • Fit_and_Dimensional_Tolerances

    Fit_and_Dimensional_Tolerances_Mechanical_Engineering_Drawing Source Ashish K Darpe Department of Mechanical Engineering IIT Delhi Thanks to Mr. Ashish K Darpe Regards Saurabh Jain

    saurabhjain
    saurabhjain
    Powerpoint Presentations 7

    introduction to cfd Computational fluid dynamics

    its useful ppt about CFD •Computational fluid dynamics (CFD) is the science of predicting fluid flow, heat transfer, mass transfer, chemical reactions, and related phenomena by solving the mathematical equations which govern these processes using a numerical process.

    pranav lad
    pranav lad
    Powerpoint Presentations 5

    Machine Design II ppt

    Presentation on Design of- Clutch Brake Belts Chain Gears

    saurabhjain
    saurabhjain
    Powerpoint Presentations 5

    Geometric Dimensioning and Tolerancing

    Geometric Dimensioning and Tolerance ppt Five powerpoint presentations

    saurabhjain
    saurabhjain
    Powerpoint Presentations 7

    Metal Forming

    Powerpoint Notes on Metal forming Topic includes— Hot &Cold working
    Forging
    Extrusion
    Rolling
    Drawing

    saurabhjain
    saurabhjain
    Powerpoint Presentations 5

    HVAC Basics

    Basic concepts of air conditioning system

    saurabhjain
    saurabhjain
    Powerpoint Presentations
  • Which of the following impurity in cast iron makes it hard and brittle ?

    You can share the question or answer in poll You can also add comments for explanation

    saurabhjain
    saurabhjain
    Mechanical Engineering Questions 5

    Which type of lubrication system is this?

    Which type of lubrication system is this? please explain 1. You can answer this question 2. You can like the best answer 3. You can share the question...

    saurabhjain
    saurabhjain
    Mechanical Engineering Questions 7

    What is difference between riveted joint and welding joint ??

    What is difference between riveted joint and welding joint ?? 1. You can answer this question 2. You can like the best answer 3. You can share the question...

    saurabhjain
    saurabhjain
    Mechanical Engineering Questions 1
  • 18 Mechanical Properties Which Every Mechanical Engineer Should Know

    Selection of material is an important aspect for manufacturing industries . The quality of product is highly depends upon its material properties. These properties are used to distinguish materials from each other. For Example: A harder material is used to make tools.A ductile material is used to draw wires. So the knowledge of mechanical properties of material is desirable for any mechanical student or for any person belongs to mechanical industries. This post brings top 18 mechanical properties.  Mechanical properties of material: There are mainly two types of materials. First one is metal and other one is non metals. Metals are classified into two types : Ferrous metals and Non-ferrous metals. Ferrous metals mainly consist iron with comparatively small addition of other materials. It includes iron and its alloy such as cast iron, steel, HSS etc. Ferrous metals are widely used in mechanical industries for its various advantages. Nonferrous metals contain little or no iron. It includes aluminum, magnesium, copper, zinc etc. Most Mechanical properties are associated with metals. These are #1. Strength: The ability of material to withstand load without failure is known as strength. If a material can bear more load, it means it has more strength. Strength of any material mainly depends on type of loading and deformation before fracture. According to loading types, strength can be classified into three types. a. Tensile strength: b. Compressive strength: 3. Shear strength: According to the deformation before fracture, strength can be classified into three types. a. Elastic strength: b. Yield strength: c. Ultimate strength: #2. Homogeneity: If a material has same properties throughout its geometry, known as homogeneous material and the property is known as homogeneity. It is an ideal situation but practically no material is homogeneous. #3. Isotropy: A material which has same elastic properties along its all loading direction known as isotropic material. #4. Anisotropy: A material which exhibits different elastic properties in different loading direction known as an-isotropic material. #5. Elasticity: If a material regain its original dimension after removal of load, it is known as elastic material and the property by virtue of which it regains its original shape is known as elasticity. Every material possess some elasticity. It is measure as the ratio of stress to strain under elastic limit. #6. Plasticity: The ability of material to undergo some degree of permanent deformation without failure after removal of load is known as plasticity. This property is used for shaping material by metal working. It is mainly depends on temperature and elastic strength of material. #7. Ductility: Ductility is a property by virtue of which metal can be drawn into wires. It can also define as a property which permits permanent deformation before fracture under tensile loading. The amount of permanent deformation (measure in percentage elongation) decides either the material is ductile or not. Percentage elongation = (Final Gauge Length – Original Gauge Length )*100/ Original Gauge Length If the percentage elongation is greater than 5% in a gauge length 50 mm, the material is ductile and if it less than 5% it is not. #8. Brittleness: Brittleness is a property by virtue of which, a material will fail under loading without significant change in dimension. Glass and cast iron are well known brittle materials. #9. Stiffness: The ability of material to resist elastic deformation or deflection during loading, known as stiffness.  A material which offers small change in dimension during loading is more stiffer. For example steel is stiffer than aluminum. #10. Hardness: The property of a material to resist penetration is known as hardness. It is an ability to resist scratching, abrasion or cutting.  It is also define as an ability to resist fracture under point loading. #11. Toughness: Toughness is defined as an ability to withstand with plastic or elastic deformation without failure. It is defined as the amount of energy absorbed before actual fracture. #12. Malleability: A property by virtue of which a metal can flatten into thin sheets, known  as malleability. It is also define as a property which permits plastic deformation under compression loading. #13. Machinability: A property by virtue of which a material can be cut easily. #14. Damping: The ability of metal to dissipate the energy of vibration or cyclic stress is called damping. Cast iron has good damping property, that’s why most of machines body made by cast iron. #15. Creep: The slow and progressive change in dimension of a material under influence of its safe working stress for long time is known as creep. Creep is mainly depend on time and temperature. The maximum amount of stress under which a material withstand during infinite time is known as creep strength. #16. Resilience: The amount of energy absorb under elastic limit during loading is called resilience. The maximum amount of the energy absorb under elastic limit is called proof resilience.   #17. Fatigue Strength: The failure of a work piece under cyclic load or repeated load below its ultimate limit is known as fatigue. The maximum amount of cyclic load which a work piece can bear for infinite number of cycle is called fatigue strength. Fatigue strength is also depend on work piece shape, geometry, surface finish etc. #18. Embrittlement: The loss of ductility of a metal caused by physical or chemical changes, which make it brittle, is called embrittlement.

    saurabhjain
    saurabhjain
    Material Science

    Types of Welding

    Welding is a process of joining similar and dissimilar metals or other material by application of heat with or without application of pressure and addition of filler material. It is used as permanent fasteners. Welding is essential process of every manufacturing industries.  In fact, the future of any new metal may depend on how far it would lend itself to fabrication by welding.
    The weldability has been defined as the capacity of being welded into inseparable joints having specified properties such as definite weld strength proper structure. The weldability of any metal depends on five major factors. These are melting point, thermal conductivity, thermal expansion, surface condition, and change in microstructure. Types of welding: Basically welding may be classified into three types. 1. Plastic welding: In plastic welding or pressure welding process, the pieces of metal to be joined are heated to a plastic state and then forced together by external pressure. These welding are also known as liquid-solid welding process. This procedure is used in forge welding and resistance welding. 2. Fusion welding: In the fusion welding or no pressure welding process, the material at the joint is heated to a molten state and allowed to solidify. These welding are also known as liquid state welding process. This includes gas welding, arc welding, thermite welding etc. 3. Cold welding: In this welding process, the joints are produced without application of heat, but by applying pressure which results diffusion or inter-surface molecular fusion of the parts to be joined. It is also known as solid state welding process. This process is mainly used for welding nonferrous sheet metal, particularly aluminum and its alloys. This includes ultrasonic welding, friction welding, Explosive welding etc.  4 Main Welding Processes: 1. Arc Welding (Fusion Welding): In this type of welding process, weld metal melted from the edges to be joined and allow to solidifies from the liquid state and usually below the recrystallization temperature without any applied deformation.  Arc welding is most extensively employed method of joining metal parts by fusion. In this welding the arc column is generated between an anode, which is the positive pole of power supply, and the cathode, the negative pole. When these two conductors of an electric circuit are brought together and separated for a small distance such that the current continues to flow through a path of ionized particles called plasma, an electric arc is formed. This ionized gas column acts as a high resistance conductor that enables more ions to flow from the anode to the cathode. Heat is generated as the ions strike the cathode. This heat used as melting of metal to be joined or melting the filler metal which further used as joining material of welding metal. The electrode is either consumable or non-consumable as per welding requirement.  The temperature at the center of the arc being 6000 OC to 7000OC   2. Gas Welding: The gas welding is done by burning of combustible gas with air or oxygen in a concentrated flame of high temperature. As with other welding methods, the purpose of the flame is to heat and melt the parent metal and filler rod of a joint. It can weld most common materials   3. Gas Metal arc welding (MIG): This welding is also known as metal inert gas welding. In this type of welding a metal rod is used as one electrode, while the work being welded is used as another electrode. It is a gas shielded metal arc welding which uses the high heat of an electric arc between a continuously fed, consumable electrode wire and the material to be welded. Metal is transferred through protected arc column to the work. In this process the wire is fed continuously from a reel through a gun to constant surface imparts a current upon the wire. In this welding the welding area is flooded with a gas which will not combine with the metal. The rate of flow gas is sufficient to keep the oxygen of the air away from the hot metal surface while welding is being done. 4. Gas Tungsten Arc Welding (TIG): This welding is also known as tungsten inert gas welding is similar to the MIG in that is uses the gases for shielding. This arc welding process uses the intense heat of an electric arc between a no consumable tungsten electrode and the material to be welded. In this process the electrode is not consumable during welding process and gas is used to protect the weld area form atmospheric air.   

    saurabhjain
    saurabhjain
    Manufacturing Technology 1

    Difference between Hot Working and Cold Working

    They both are the metal forming processes. When plastic deformation of metal is carried out at temperature above the recrystallization temperature the process, the process is known as hot working. If this deformation is done below the recrystallization temperature the process is known as cold working. There are many other differences between these processes which are described as below. Difference between Hot Working and Cold Working: S.No.   Cold working     Hot working   1   It is done at a temperature below the recrystallization temperature.   Hot working is done at a temperature above recrystallization temperature.   2.   It is done below recrystallization temperature so it is accomplished by strain hardening.   Hardening due to plastic deformation is completely eliminated.   3.   Cold working decreases mechanical properties of metal like elongation, reduction of area and impact values.   It increases mechanical properties.   4.   Crystallization does not take place.   Crystallization takes place.   5.   Material is not uniform after this working.   Material is uniform thought.   6.   There is more risk of cracks.   There is less risk of cracks.   7.   Cold working increases ultimate tensile strength, yield point hardness and fatigue strength but decreases resistance to corrosion.   In hot working, ultimate tensile strength, yield point, corrosion resistance are unaffected.   8.   Internal and residual stresses are produced.   Internal and residual stresses are not produced.     9.
    Cold working required more energy for plastic deformation.
    It requires less energy for plastic deformation because at higher temperature metal become more ductile and soft.   10.
    More stress is required.
    Less stress required.   11.
    It does not require pickling because no oxidation of metal takes place.
    Heavy oxidation occurs during hot working so pickling is required to remove oxide.   12.
    Embrittlement does not occur in cold working due to no reaction with oxygen at lower temperature.
    There is chance of embrittlement by oxygen in hot working hence metal working is done at inert atmosphere for reactive metals.

    saurabhjain
    saurabhjain
    Manufacturing Technology 4

    CLASSIFICATION OF FLUIDS

    Ideal fluid: A fluid, which is incompressible and having no viscosity, is known as an ideal fluid. Ideal fluid is only an imaginary fluid as all the fluids, which exist, have some viscosity. Real fluid: A fluid, which possesses viscosity, is known as real fluid. All the fluids, in actual practice, are real fluids. Example : Water, Air etc. Newtonian fluid: A real fluid, in which shear stress in directly proportional to the rate of shear strain or velocity gradient, is known as a Newtonian fluid. Example : Water, Benzine etc. Non Newtonian fluid: A real fluid, in which shear stress in not directly proportional to the rate of shear strain or velocity gradient, is known as a Non Newtonian fluid. Example : Plaster, Slurries, Pastes etc.  Ideal plastic fluid: A fluid, in which shear stress is more than the yield value and shear stress is proportional to the rate of shear strain or velocity gradient, is known as ideal plastic fluid. Incompressible fluid: A fluid, in which the density of fluid does not change which change in external force or pressure, is known as incompressible fluid. All liquid are considered in this category. Compressible fluid: A fluid, in which the density of fluid changes while change in external force or pressure, is known as compressible fluid. All gases are considered in this category. Graphical representation of different fluids: Tabular representation of fluid types: Types of fluid Density Viscosity Ideal fluid Constant Zero Real fluid Variable Non zero Newtonian fluid Constant/ Variable T = u(du/dy) Non Newtonian fluid Constant/ Variable T ≠ u(du/dy) Incompressible fluid Constant Non zero/zero Compressible fluid Variable Non zero/zero CLASSIFICATION OF FLOWS ON THE BASIS OF MACH NUMBER. Incompressible flow-M less than 0.3 Compressible subsonic flow-M between 0.3 and 1 Transonic flow-M ranging between values less than 1 and more than 1 Supersonic flow-M greater than 1 but less than 5 Hypersonic flow - M greater than 5  

    saurabhjain
    saurabhjain
    Fluid Mechanics 1
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  3. Gateway Institute

    Advantage of GATE Exams

    Graduate Aptitude Test in Engineering also known as GATE is an all-India examination conducted and administered by the prestigious Indian Institute of Science and seven IITs. GATE is organised by the National Coordination Board, Department of Higher Education, MHRD, and Government of India. These exams are known as the perfect yardstick to measure and test the calibre of engineering students. It is a myth that the GATE exams are meant for ME./M.Tech which finally leads to a teaching career only. Are you searching Best Gate Coaching In Pune click here In this blog, let’s look at The GATE advantage: Many PSUs such as BHEL, Indian Oil Corporation, NTPC, Bhabha Atomic Research Centre are using the GATE score for selecting candidates. Selected students get a stipend of Rs 8,000 per month during the M.Tech course. Better remuneration is offered to students of M.Tech/M.E as compared to those pursuing B.Tech /B.E. A decent GATE rank assures an excellent job. After completing the M.Tech., at IITs and IISc, you are entitled to get a salary package ranging between Rs 7 lakh to 30 lakh per annum. After clearing GATE, you can also sign up for Junior Research Fellowship in CSIR Laboratories. M.Tech. Is mandatory for the ones looking to apply for research positions in R&D centres. The GATE score is valid for two years, and the ones who qualify are eligible for a Master’s degree at the National University of Singapore. Are you looking for Gate Online test Series click here Raising GATE aspirants From 1.66 lakh in 2008, the number of aspirants touched 8 lakh in 2013. It is one of the most rigorous examinations and aims at testing the students’ capability in engineering concepts along with managerial skills. Engineering subjects cover 70% weight, while General aptitude and Engineering Mathematics cover 15%. The 3 GATE paper has a total of 65 questions, out of which 30 questions are one mark each and 35 questions are two marks each. To score high, you need to keep in mind that you are judged relatively and not entirely. For Best GATE 2020 Classes click here
  4. I could really use some help:I'm looking for more SOLIDWORKS users who can benefit from automatic SW simulations.For that reason, we created this CORTIME Ambassador Program. Simply by joining the program to create a profile and share the word about parametric optimization with your SW network, you get a chance to earn a $100 Amazon gift card each time a referral makes a purchase.So, if you like what we do, feel free to help out by telling your friends and we will reward you.You can sign up here: https://lnkd.in/d3zfhze CORTIME+2018+-+Short.mp4
  5. Because of the limitation of installation space and performance requirements, automobile engine cooling water pump has the characteristics of small size, easy manufacture and mass production. Cooling water pump generally consists of pump body, impeller, shaft bearing, water seal, belt pulley and other major components. The pump body pressure chamber can be integrated on the engine cylinder body according to the different structure of the engine cylinder body, or can be configured separately. Impeller is the core functional component of water pump, its diameter, outlet width, blade structure shape and other parameters and structural design directly determine the performance of cooling water pump. There are many kinds of structure of cooling water pump, which can be divided into cast iron impeller, stamping impeller and plastic impeller according to the different material of impeller. Chongqing Feilong Jiangli has mature technology and rich experience for these three impellers, which can meet the performance requirements of customers. According to whether there are cover plates, it can be divided into open impeller and closed impeller. Chongqing Feilong Jiangli mainly produces open impeller according to the shape of impeller blade. Similarly, it can be divided into straight blade impeller, single curvature blade impeller and space twisted blade impeller. Chongqing Feilong Jiangli impeller has different blade shapes, which can meet different needs. With the continuous development of science and technology, only heavy-duty trucks, buses and a few self-owned brand passenger cars still use cast iron impellers in cooling water pumps on the market, Japanese passenger cars now mostly use stamping impellers, and advanced countries such as Europe and the United States mostly use plastic impellers, such as Chongqing Feilong Jiangli's partner Ford, three impellers of domestic self-owned brand cars have been applied, but with it. With the introduction of new technology from abroad, plastic impellers have also been used in newly developed models. The plastic impellers of Feilong Jiang Li in Chongqing have been sold to the Indian market.
  6. vaibhav kapoor

    What after M.E Engineering Design?

    MNCs, design firms, consultancies who work in product development employ the chunk of design engineers . You may enter into a niche like automobile but the core product development and engineering basics remain the same . You can use your skills to cross deploy in other fields .
  7. Yesterday
  8. Chongqing Feilong Jiangli specializes in the production of automotive pumps, as well as oil level gauge series, rubber parts series and stamping parts series. Chongqing Feilong brings you the latest information, let you know the latest technology. According to foreign media reports, since December 17 this year, the new speed camera system will be installed on Tanah Merah Binhai Avenue to calculate the average speed of vehicles in its extended section. In the first quarter of this year, the system was installed on the extended section of Binhai Avenue, which is 4 kilometers long. The purpose of the system is to carry out rigorous testing to ensure the accuracy and durability of the equipment. This system has been applied to Singapore for the first time. The speed limit of Danamella Binhai Avenue is 70 km/h. The reason why Danamella Binhai Avenue was selected by the system is that it is prone to speeding and illegal racing events. According to the Singapore police, "The system consists of several cameras located at the entrance and exit of enforcement zone to detect and calculate the average speed of vehicles in the area. If the average speed exceeds the road limit or the speed limit for special vehicles, the driver will be judged as speeding violation. Chongqing Feilong Jiangli analysis believes that the camera system can help traffic police detect violations such as speeding, so that drivers consciously abide by traffic rules and improve road safety.
  9. BMW invested 200 million Euros to rebuild Munich plant to mass produce BMW I4 electric vehicle According to foreign media reports, BMW Group is investing about 200 million euros in its Munich plant to prepare for mass production of BMW I4 electric vehicles, which will be put into production in Munich in 2021. BMW Group is currently pursuing the strategy of producing both traditional diesel locomotives and pure electric vehicles and plug-in hybrid vehicles on the same production line in its plant, thus eliminating the need for a separate production structure for electric vehicles. The launch of BMW I4 electric vehicle in Munich factory requires a wide range of measures, especially in the body workshop and car assembly. The body concept of BMW I4 electric vehicle is very different from other models produced in Munich factory before. For example, the high-voltage battery pack required for BMW I4 electric vehicles requires an almost completely independent floor assembly, including the rear triangle. BMW's current task is to design a complex and connected production line, so that more than 1,000 robots can produce not only BMW 3-series, 4-series and M4 body per minute, but also special body of BMW I 4. In addition, BMW I4 assembly is also facing challenges. In order to install high-voltage batteries in vehicles, designers need to accommodate a large number of space-occupying conveyors and system technologies in already crowded Munich factories.
  10. Now field work is equally important for girls in this mechanical field..Simple go for any professional certification courses like AutoCAD, CATIA etc and start your career
  11. Virtual software Virtual reality technology is bound to shine in the future, and a virtual software company called Unity has created this possibility. The software can be run on 35 platforms including iOS, Android, Xbox, PlayStation, Hollow Lens, etc. Auto companies can also use it for engineering analysis in virtual reality environment. Marketing departments can also use this technology to make advertisements, consumers can use it to check configuration status before placing orders, etc. Although these functions have been or are being put into practical use, the company's software is being optimized to achieve the best use experience. Neuroprobe occipital Freer Logic has invented a bio-pillow that provides real-time EEG data without touching the user's head. As long as the head is kept at a certain distance from it, the system will start to work. After a series of monitoring, the driver's fatigue, sleepiness, mood and relaxation can be perceived through the state of EEG. According to the company's president, the neurobiological monitoring pillow can measure sleepiness four minutes before the human eye starts drooping, which is more advanced than the camera-based monitoring device. This technology can be used for automatic driving, and can also provide corresponding services when detecting driver's pressure.
  12. Last week
  13. Thank you for sharing this interview question..All these are very useful for my preparation..As I am taking Online mechanical Design Training..So this will be very helpful for my interview preparation..
  14. First , thank you very much for replying and explaining As for the first step what the loads that i must find ... I have to take moment and get reactions from the wieght and wind force is there any forces should be taken here ?... Could you please explain this static part related to get the reactions in the first step ...how to use it in these problem ? The safety factor ...should i suppose a value for it from me or it must be calculated from the yield strength and stresses?
  15. According to me Sandwich degree have more scope than regular degree..Some of the key elements of B.E. sandwich course over the regular B.E course. 1. It is a 5-year course offering the same B.E degree 2. The timing of the programme is a little different. The sandwich course offers Industrial training to students in the forenoon session and classes are in the evening. 3. It is compulsory for students to attend an intern for one full semester in their third year Since sandwich students have an industry exposure, the students definitely have a better understanding of the industry culture and its dynamics. Also, the internship gives them an edge over the regular students. So, I think there is a slight weightage given for sandwich students by companies visiting the campus for placements.
  16. Fluoride-ion batteries provide an attractive alternative to other types of high-energy batteries, such as those based on lithium or metal hydride chemistry, which are usually limited by the inherent characteristics of the electrodes. Because of the low atomic mass of fluorine, the energy density of rechargeable batteries based on this element is very high, theoretically 10 times higher than that of lithium ion batteries. But Chongqing Feilong Jiangli believes that although fluoride ion batteries are considered as the next generation of high energy density energy storage equipment, they are limited by temperature requirements. At present, solid-state fluoride ion batteries need to work at temperatures above 150 degrees Celsius to make electrolytes conductive. To solve this problem, researchers have found a way to make fluoride ion batteries work at room temperature. The electrolyte was developed using dried tetraalkylammonium fluoride salts dissolved in organic fluoride ether solvents. When paired with composite cathodes with core-shell nanostructures of copper, lanthanum and fluorine, the researchers demonstrated a reversible electrochemical cycle at room temperature.
  17. I own a food production business for many years now, and everything’s doing fine. But I think it’s the right time to expand it and make some major improvements. I plan on getting an automated machine to increase the speed of our production. I’m already considering one of the machine builder companies my sister suggested to me so I can get customised tools for my business. Do you think it’s a good idea to hire such professionals? Or should I look for ready-made equipment that will suit me?
  18. Identify the load. In this case, wind load. Wind load could be calculated from ASCE 7 or EN 1991-1-4 or other relevant codes. The wind load (essentially pressure) multiply by effective area (5m x 2m of signboard in your drawing) to get a working wind force. Multiply this with 3 m height, to get working moment at the base. Let say using structural steel with yield strength of 240 MPa, safety factors 3, you get allowable working stress of 80 MPa. Check the cross-sectional properties (second moment area, radius, thickness) to get this allowable working stress. Stress = M x r / I For a thin cylinder, I = pi x r^3 x thickness. Then you get the dimension needed for the pole/support.
  19. vaibhav kapoor

    Role of Mechanical Engineer in IT industry

    IT-Related Functions of Mechanical Engineers:- Research and evaluate design proposals and specifications. Develop and test design models with the application of software programs to check feasibility. Find out the cause of equipment and system failures, and provide feedback to drafters and design engineers. Read and translate technical illustrations, blueprints, and computer-generated reports. Create structural designs for products with the help of CAD and other drafting software programs.
  20. Hi Mechanical Engineering people this is my first activity here ,im a student from palestine . i have a project in mechanics of materials subject...it is a project of signboard with two legs and we should design it so that it gives us good saftey factor ,not all dimensions are give some are given and other should be identified to give us a good design . i have a problem in starting this project the project mark is just 10 marks from the whole course so i think it will be simple i want just to have an idea of what things should i do, like how to start and what steps i must take ...can any one help me in that please?
  21. vaibhav kapoor

    certification courses for mechanical engineers

    For making career in core field various certification is required.For mechanical engineer the following certificate are very much essential for getting their career on track. 1. MAT LAB 2. CAD & CAM softwares like Auto CAD, CATIA, CREO, SOLID WORKS, SOLID EDGE, NX, MASTERCAM etc 3. CATIA 4. Pro E Hope this will helps you
  22. With the emergence of self-driving vehicles, GPS accuracy becomes more and more important. Chongqing Feilong Jiangli understands that Tesla has developed a technology that enables more accurate positioning by sharing data between vehicles. Last year, Tesla filed a patent for the technology, called "Auto Location Technology", which was released this week by the U.S. Patent and Trademark Office. In the patent application, Tesla said that GPS positioning was inaccurate. For example, a smartphone with a positioning receiver may be able to locate itself within five metres. When the receiver is close to buildings, bridges, trees or other structures, the accuracy of positioning may decrease. Although this positioning accuracy is sufficient for some positioning applications, it needs more accurate accuracy for applications such as automatic driving. Therefore, although there are some factors affecting the navigation satellite signal, we still hope to provide more accurate positioning accuracy. Chongqing Feilong Jiangli believes that in the weak GPS signal, other sensors can be used to correct GPS data, which is very useful for automatic driving.
  23. Younis Alshaery

    Thermal Power plant.jpg

    Basic Cycle The Rankine cycle is the fundamental operating cycle of all power plants where an operating fluid is continuously evaporated and condensed. The selection of operating fluid depends mainly on the available temperature range. 1-2-3 Isobaric Heat Transfer. High pressure liquid enters the boiler from the feed pump (1) and is heated to the saturation temperature (2). Further addition of energy causes evaporation of the liquid until it is fully converted to saturated steam (3). 3-4 Isentropic Expansion. The vapor is expanded in the turbine, thus producing work which may be converted to electricity. In practice, the expansion is limited by the temperature of the cooling medium and by the erosion of the turbine blades by liquid entrainment in the vapor stream as the process moves further into the two-phase region. Exit vapor qualities should be greater than 90%. 4-5 Isobaric Heat Rejection. The vapor-liquid mixture leaving the turbine (4) is condensed at low pressure, usually in a surface condenser using cooling water. In well designed and maintained condensers, the pressure of the vapor is well below atmospheric pressure, approaching the saturation pressure of the operating fluid at the cooling water temperature. 5-1 Isentropic Compression. The pressure of the condensate is raised in the feed pump. Because of the low specific volume of liquids, the pump work is relatively small and often neglected in thermodynamic calculations.
  24. Earlier
  25. Responsibilities of design engineer for design bearings: A plan design is a man who might be engaged with any of different building disciplines including common, mechanical, electrical, substance, materials, aviation, atomic, assembling, frameworks, and auxiliary/building/structural. Configuration engineers study, inquire about and create thoughts for new items and the frameworks used to make them. They likewise alter existing items or procedures to expand effectiveness or enhance execution. utilizing PC helped plan (CAD) and PC helped designing (CAE) programming to make models. Most direction encourage the ideal movement by limiting grinding. ... Turning orientation hold pivoting parts, for example, shafts or axles inside mechanical frameworks, and exchange hub and spiral burdens from the wellspring of the heap to the structure supporting it.
  26. A thermopile is an electronic device that converts thermal energy into electrical energy. It is composed of several thermocouples connected usually in series.
  27. It is used for measuring the velocity and direction of the fluid (e.g Air).
  28. In 2023, the cost savings and efficiency gains of VW brand are expected to reach 6 billion Euros. In order to raise the operating profit margin of the popular brand to 6% by 2023, the German Business Daily quoted people's internal information as saying that the company hopes to achieve 6 billion euros in cost savings and efficiency gains. Volkswagen has said it hopes to achieve a profit margin of at least 6% by 2025. It is reported that the cost and efficiency improvement of about 3 billion euros will come from better pricing of passenger cars and efforts to sell high-profit models, while the remaining 3 billion euros will come from reducing the complexity of the models being sold and reducing administrative costs. As the industry goes deeper into the field of automatic driving and electrification, cost savings and efficiency gains will also help the public to better invest in new technology. Last month (November), Volkswagen announced a series of investment and restructuring plans. By the end of 2023, Volkswagen Group will invest 44 billion euros in research and development of electric vehicles, smart networking, new mobile travel services and digitization of vehicles and factories. In addition, Volkswagen Group has also identified joint development and production of light commercial vehicles with Ford and explored other areas of cooperation. Volkswagen CEO Herbert Diess also said that mass production of electric vehicles would allow companies to reduce production costs of electric vehicles to the current level of diesel production. In addition, the Volkswagen Board of Supervisors has approved a long-term capital expenditure plan for mass production of electric vehicles in Europe.
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    • webarsh ir

      combustion in fluent
      ۲D Simulation of a 300 KW BERL Combustor Using the Magnussen Model
      ۲D Simulation of a 300 KW BERL Combustor Using the Laminar Flamelet Model
      Modeling Catalytic Combustion of Methane Using Wall Surface Reactions
       
      Modeling Liquid Reactions in CIJR Using the Unsteady Laminar Flamelet Model
       
      Coal Combustion with Eddy Break Up (EBU) Model
      Modeling Liquid Reactions in CIJR Using the Eulerian PDF transport (DQMOM-IEM) Model
      Premixed Flow in a Conical Chamber using the Finite-Rate Chemistry Model
      Modeling Evaporation of Liquid Droplets in a Circular Channel
      Liquid Fuel Combustion
      Multiple Char Reactions
      Partially Premixed Combustion in a Co-axial Combustor
      PDF Transport Simulation of Sandia Flame
      Detailed Chemistry for Predicting NOx
      Simulation of a Piloted Jet Flame using Unsteady Laminar Flamelet Model
      فایل زیر شامل آموزش های بالا است. که منبع خوبی برای کسانی است که می خواند احتراق در فلوئنت را یاد بگیرند. همچنین فایل حل فلوئنت و مش گمبیت نیز در لینک زیر رو میتونید دانلود کنید.
      دانلود آموزش احتراق در فلوئنت 
       
      · 0 replies
    • PROFF

      What an engineering community
      · 0 replies
    • Engr Anik

      Mechanical Interview Questions and Answers 2018 || Topics: Boiler Exceptional Question
      For the job placement in the mechanical engineering private companies, it is very necessary to know about the very important mechanical engineering interview questions and answers. During the interview session, the employer can ask you the mechanical engineering basic questions to examine your knowledge about your subject and sector. If you planning to seat in the job placement, these frequently asked mechanical engineering questions and answers will help you in reply to the employer questions. These mechanical engineering interview questions and answers are meant for the purpose of a job interview and getting an idea of interview question for fresher.
       
      Today we are going to discuss Mechanical Interview Questions and Answers-Topics:  Boiler
      In this video we discuss the following question with answer:
      Question Number 1. What is boiler?
      Question Number 2: What are the boiler mountings?
      Question Number 3. What are boiler accessories?
      Question Number 4. What is circulation ratio of a boiler?
      Question Number 5. What is turn down ratio of boiler?
      Question Number 6. What is foaming of boiler?
      Question Number 7. What is priming of boiler?
      Question Number 8. What is critical point of steam?
      Question Number 9. What is evaporation ratio of Boiler?
      Question Number 10. What is acid due point in boiler?
      Question Number 11. What is gross calorific value and net calorific value of coal?
       
      You will all answer after see this video: https://youtu.be/ANifcZlS9Mg
       
      · 0 replies
    • Engr Anik

      Basically this video is helpful for fresh mechanical graduate engineer to help him how to answer common mechanical question that has been asked in interview. A mechanical fresh student gain knowledge about top 12 common mechanical questions.  It also helps for fresher mechanical student to take preparation for facing interview.
      Here we listed some mechanical basic common questions and answer that has been asked in the video:
      Question Number 1:  what is heat treatment and why is it done?
      Answer: Heat treatment can be defined as a combination of processes or operations in which the heating and cooling of a metal or alloy is done in order to obtain desirable characteristics without changing the compositions. Some of the motives or purpose of heat treatment are as follows:
      In order to improve the hardness of metals.
       For the softening of the metal.
       In order to improve the mach inability of the metal.
       To change the grain size.
      To provide better resistance to heat, corrosion, wear etc.
      Question Number 2:  Why do heavy vehicles use diesel engine?
      Answer: The compression ratio of diesel engine is higher than the petrol engine, the reason for producing higher torque. The efficiency of diesel engine increases with load. Diesel produces slow energy on burning of fuel and the efficiency of the engine increases with load which is why diesel engine is suitable and largely used for heavy vehicles
      Question Number 3: what are types of heat treatment?
      Answer: Heat treatment is generally performed in the following ways:
      Normalizing
      Annealing
      Spheroidising
      Please watch this video till end to get the full questions with answer.
       
      Here is the link: 
       
       
      · 0 replies
    • Eric Brew

      What useful information are obtained from the tensile test of a ductile material
      · 1 reply
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    • I could really use some help:

      I'm looking for more SOLIDWORKS users who can benefit from automatic SW simulations.

      For that reason, we created this CORTIME Ambassador Program. Simply by joining the program to create a profile and share the word about parametric optimization with your SW network, you get a chance to earn a $100 Amazon gift card each time a referral makes a purchase.

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    • Because of the limitation of installation space and performance requirements, automobile engine cooling water pump has the characteristics of small size, easy manufacture and mass production. Cooling water pump generally consists of pump body, impeller, shaft bearing, water seal, belt pulley and other major components. The pump body pressure chamber can be integrated on the engine cylinder body according to the different structure of the engine cylinder body, or can be configured separately. Impeller is the core functional component of water pump, its diameter, outlet width, blade structure shape and other parameters and structural design directly determine the performance of cooling water pump. There are many kinds of structure of cooling water pump, which can be divided into cast iron impeller, stamping impeller and plastic impeller according to the different material of impeller. Chongqing Feilong Jiangli has mature technology and rich experience for these three impellers, which can meet the performance requirements of customers. According to whether there are cover plates, it can be divided into open impeller and closed impeller. Chongqing Feilong Jiangli mainly produces open impeller according to the shape of impeller blade. Similarly, it can be divided into straight blade impeller, single curvature blade impeller and space twisted blade impeller. Chongqing Feilong Jiangli impeller has different blade shapes, which can meet different needs. With the continuous development of science and technology, only heavy-duty trucks, buses and a few self-owned brand passenger cars still use cast iron impellers in cooling water pumps on the market, Japanese passenger cars now mostly use stamping impellers, and advanced countries such as Europe and the United States mostly use plastic impellers, such as Chongqing Feilong Jiangli's partner Ford, three impellers of domestic self-owned brand cars have been applied, but with it. With the introduction of new technology from abroad, plastic impellers have also been used in newly developed models. The plastic impellers of Feilong Jiang Li in Chongqing have been sold to the Indian market.
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