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  1. DrD

    DrD

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  2. saurabhjain

    saurabhjain

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  3. Robinson Kiprotich k

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  4. dudleybenton

    dudleybenton

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Popular Content

Showing content with the highest reputation since 05/10/2020 in all areas

  1. Version 1.1.0

    43,600 downloads

    A COMPLETE INSTRUCTOR AND STUDENT SUPPLEMENT PACKAGE - Continued These ppts are set of instructor and student supplements. . A FOCUS ON DIAGNOSIS AND PROBLEM SOLVING The primary focus of these ppts is to satisfy the need for problem diagnosis. Time and again, the author has heard that technicians need more training in diagnostic procedures and skill development. To meet this need and to help illustrate how real problems are solved, diagnostic stories are included throughout. Each new topic covers the parts involved as well as their purpose, function, and operation, and how to tes
    4 points
  2. Mechanical Engineer - Repair and Maintenance - Production Technology Dep. - Mpande Limestone (Sinoma Cement)
    2 points
  3. Mechanical Inspector - MBEYA CEMENT COMPANY LIMITED In Maintenance Department and Preventive/Method Section.
    2 points
  4. Mobile Equipment Engineer - Mimosa Mining Company - provide maintenance service for all underground TMMs
    2 points
  5. Technical Advisor- Experimental Fluid Dynamics Engineer at Cummins Inc.
    2 points
  6. My position is Principal Engineer, Mechanical (Thermal Plant) and my role is to provide technical support on rotating equipment mechanical issues to our thermal power plants.
    2 points
  7. 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. Firs
    2 points
  8. Hello All, Please share me which is best software for CAD drafting and design. Thanks, Jay Smith
    2 points
  9. Version version 2

    2,082 downloads

    Summary - Topics and Exercise 5.1) Fasteners 5.2) Screw Thread Definitions 5.3) Types of Thread 5.4) Manufacturing Screw Threads 5.5) Drawing Screw Threads 5.6) Unified Threads 5.7) Metric Threads 5.8) Drawing Bolts 5.9) Bolt and Screw Clearances
    2 points
  10. saurabhjain

    Metal Forming

    7,241 downloads

    Powerpoint Notes on Metal forming Topic includes— Hot &Cold working Forging Extrusion Rolling Drawing
    2 points
  11. I took more math classes than the math majors--not a one wasted. I often call myself an applied mathematician. Math has enabled me to do all sorts of things besides mechanical engineering. I worked with several remediation teams when none of the geologists or geohydrologists or civil engineers could handle the mathematics. I solved several of the biggest pollution nightmares in North America, including the most expensive cleanup ever--on Western Cape Cod in the Kennedy's back yard. My particle tracker and 3D model builder software were the premier tools of choice for contractors working for th
    2 points
  12. 7,789 downloads

    ANSYS offers engineering simulation solution sets in engineering simulation that a design process requires. Companies in a wide variety of industries use ANSYS software. The tools put a virtual product through a rigorous testing procedure (such as crashing a car into a brick wall, or running for several years on a tarmac road) before it becomes a physical object. This pdf gives good start to understand and learn ANSYS
    2 points
  13. saurabhjain

    Pump basics

    3,770 downloads

    Type of pumps Pump application Pump basics 2 Presentations
    2 points
  14. Engineering Manager, Manufacturing of Composite Rail Platforms
    1 point
  15. I believe this is known as a "hydraulic bouyancy lifting engine" (the Hindenburg was an Air-buoyancy lifting engine) The easiest way to calculate the usable force is to try it out with a tube set vertically in water and catch the water that comes out over a set period of time (say 10 seconds)...the usable energy (Work) can then be calculated back from the volume of water that has been ejected. Work done is Force times distance (W = Fs). The volume of the water lifted would be linked to the mass of the water x G...this would be calculated as energy gained (PE) = mgh. With regards to t
    1 point
  16. DrD

    Hemispherical dome

    There is lots of discussion of problems of this sort in Den Hartog's Advance Strength book. DrD
    1 point
  17. DrD

    Shrink fit Interference

    Get a reasonable value for the coefficient of friction, and calculate the interface pressure required to transmit the required torque. After you know the interface pressure, the interference is pretty easy. Check out a machine design book (Shigley, Budinas, or other) for the details. DrD
    1 point
  18. Not knowing the application and loads. The most likely screw sizes would be #10-32 UNJF-3A. This will require using MS21209F1-15L at minimum. If you using Boeing specs that would callout the holes to BACD2079N030B3R. If Airbus, I would have to look that up. Note: There would always be tensional loads. All Screws/Bolts are designed to have tensional loads. There are some that are shear loaded and those have a solid shank larger than the threads that require match reaming to shear load. The most common application for that method would be the seat tracks or structural framing.
    1 point
  19. Vinay, the different types of bolt/screw heads have specific applications and some are cosmetic. Most are for different types of applications. For example, Countersunk heads are low profile and allow for placement in limited spaces, but due to its characteristics hole to hole tolerances would have to very tight and they are not for high load applications which might cause pull thru. The you have x-recess which also a low load applications where the strength is only what your hand can apply. Then we have the hex patterns where are mostly used in high load application. If you want to go even hi
    1 point
  20. Interesting subject, I am currently involved in the analysis of a complex assembly build and the most common specified fixing is a button head set screw, followed by a cap head. Obviously a button head is more user friendly due to it's lower profile but I imagine it would lack the ultimate head strength of a button head due to the reduced cross sectional area. A circular button or cap head will give a more uniform clamping force distribution, even when either a button or hex head is used with a washer. I know there is a limit to the size range offered with socket head screws so
    1 point
  21. Silicone Mold Rubber proven to be better in my experience, but it depends what is your purpose.
    1 point
  22. Dudley's advice is certainly good. Co-Op is a chance for you to experience the job before you graduate, and also a chance for the company to get a good look at you. Co-Ops often receive job offers upon graduation. DrD
    1 point
  23. The crank slider mechanism is a typical design that converts rotary motion into linear motion. This is achieved by connecting the slider and crank to the rod.
    1 point
  24. Mechanics Corner #50 A Journal of Applied Mechanics and Mathematics by DrD Why You Should NOT Use the D'Alembert's Principle I think it is safe to say that every engineering student studies both Statics and Dynamics. We are told that Statics is easier than Dynamics, which is often true but not so in all cases. When we get to Dynamics, many teachers, particularly physics teachers, will urge the use of something called D'Alembert's Principle. They tell us that it reduces dynamics problems to statics problems and thus makes life so much easier.
    1 point
  25. DrD

    Machine Design Methods

    As an older engineer, I am rather dismayed by what I see as the results of engineering education today. I have seen most young engineers come out of their college degree programs with a modest familiarity with come CAD program and a related Finite Element program, and an almost complete lack of capability to analyze machine components without the use of FEA. Thus they are unfamilliar with basic design calculations relating shear stress in a shaft to the power being transmitted, the shaft sped and the shaft diameter. Instead, they want to create an FEA model and run the numbers that way which i
    1 point
  26. Hello, I am new to this and I'm looking for a program I can download to design a linkage system ( also if available, pulley, and gear system), input forces on the system and then get feedback on how much mechanical advantage is produced. Any guidance on this would be greatly appreciated as i've been searching for quite a while to no avail.
    1 point
  27. Mechanics Corner, #53 A Journal of Applied Mechanics and Mathematics by DrD A Hoisting Problem for Engineers A Learning Experience in Machine Design There is a document available on the Internet at several locations with the title 2.003 Problem Archive by MIT Professor David Trumper, Last Updated April 19, 2005. It is a collection of engineering problems, some with Matlab solutions. One thing that particularly caught my eye is 4.4 Hoisting Problem for Enginee
    1 point
  28. Jorge Diaz

    Metal bender diy

    I make a simple and useful metal bender at home. Do you want to get one. Just watch tutorial video you can make one easily by yourself Watch tutorial video here:
    1 point
  29. pms engineers

    Bearings

    PMS Engineers is an established supplier of world class bearings and power transmission products. We are the first-choice channel partners for some of the world’s biggest bearing and lubricant manufacturers including Timken, NSK-RHP, NIKKI, Gamet Bearings and Motherson Sumitomo – Solid Carbide Cutting Tools. With a powerful distribution network and support team in place, we collaborate with clients round the clock to minimize downtime, reduce working costs and improve the overall quality of operations.
    1 point
  30. I'm not an engineer but I've sold industrial gearboxes for many years. It may be worth looking at a worm gear. You could probably use one gear set. They can be quite compact for a large reduction.
    1 point
  31. DrD

    What Would You Like to Know?

    You need to ask around to upper classmen, librarians, lab assistants, in addition to the faculty, and the main question is, "How do graduates of this school find jobs? Where do they make the necessary employer contacts?"\I I'd really be surprised if no industry recruiters come to your campus. Most schools encourage this as a way to help their graduates find work. Also, does your school offer a cooperative education (Co-Op) experience? If so, take it. If you don't know, ask in the Dean's Office. My school had one, and I wish I had done it. I had never heard of such a thing, and it was
    1 point
  32. Hey guys, a mechanical engineering app is for free for 1 week. Don't miss it :) It's only for android. Download link : https://play.google.com/store/apps/details?id=com.asistan.AsistanPro
    1 point
  33. So what is the point? We have a gripper, but aren't grippers fairly common? DrD
    1 point
  34. I used to teach a course at university on process optimization. There are several simple problems that can be solved using Excel. For example, it takes so long to produce X and a different time to produce Y and another time to switch over from one to the other. If you must produce a total of Z, what is the optimal approach? The Tom's cracker factory is less than a mile from my house. [Sadly, they have since closed )-;] They made cheese and also peanut butter crackers on the same machines and it takes a while to switch over. There is also a factory in town that makes plastic door mats and also
    1 point
  35. You needn't find out a bearing exactly. Just you get same is enough. Cheer
    1 point
  36. This research study has been done in Aljabalein Power Plant at White Nile State. The objective of the study is to compare and differentiate between two types of fuel, light fuel oil (LFO) and crude oil (CRO) used in power plant situated in Aljabalein site. The comparison has been done on different viewpoints including the impact of exhaust gases on the surrounding environment, the performance of engines at different loads, and the operation and maintenance costs. It is found that CRO fuel oil is preferred to LFO fuel due to less operation costs. But it has many disadvantages such as hi
    1 point
  37. HKS

    What Makes A Ship Move?

    I agree that the description of large interconnected systems is difficult for most of us. In my opinion, this lack of skill responds to two main factors: First, the mechanical engineering curriculum usually devotes more time to the teaching and evaluation of very specific topics and less time to the analysis of large interconnected systems. Second, the industry, for the most part, demands specialized personnel either to solve problems or to make small improvements in subsystems in order to obtain a small but continuous improvement that allows them to remain competitive at the l
    1 point
  38. The milling is a machining process in which, a rotary cutter is used to remove the material from work piece in the direction perpendicular to the axis of rotation. The milling process is done by the machine, which hold both the tool and work piece in jig and fixture, known as milling machine. There are two ways to cut the material from the work piece through milling machine. First one is named as conventional milling or Up milling and the other one known as climb milling or down milling. The main and basic difference between up milling and down milling is the direction of rotation of cutter to
    1 point
    Excellent informations for young Mechanical Grauates
    1 point
  39. 2,096 downloads

    An introduction of mechanisms and machines
    1 point
  40. Version 1.0.0

    2,221 downloads

    Here in this ppt you can able to understand the basic concepts of Heat & Mass Transfer.
    1 point
  41. Version 1.0.0

    3,722 downloads

    Diesel Engine Transmission, Brake and electrical systems
    1 point
  42. 3,452 downloads

    Learning Outcome ►Demonstrate understanding of basic vapor-compression refrigeration and heat pump systems. ►Develop and analyze thermodynamic models of vapor-compression systems and their modifications, including ►sketching schematic and accompanying T-s diagrams. ►evaluating property data at principal states of the systems. ►applying mass, energy, entropy, and exergy balances for the basic processes. ►determining refrigeration and heat pump system performance, coefficient of performance, and capacity. ►Explain the effects on vapor-compression system performance of varying key par
    1 point
  43. A sandwich course combines classroom learning and practical work placements in separate blocks.Almost all engineering streams are under sandwich. In this pattern , theoretical training is first provided and then later practical training to learn about the application of your knowledge in your subject. After learning the gaps and facing the problems in practical application you return to theory to make it right. This is the best way to learn,but sadly not many colleges offer these and even job opportunities are low.A general 4 year engineering degree takes 5 years through practicals.Exactly
    1 point
  44. 1,598 downloads

    Summary 2-1) Detailed Drawings 2-2) Learning to Dimension 2-3) Dimension Appearance and Techniques. 2-4) Dimensioning and Locating Simple Features. 2-5) Dimensioning and Locating Advanced Features. 2-6) Dimension Choice.
    1 point
  45. saurabhjain

    hybrid-engine.ppt

    993 downloads

    File imported by an administrator
    1 point
  46. i want to convert my two stroke petrol engine into an engine which will run on LPG .i want to know ,s it possible and if yes .please guide me. i will be very much thankful to you all
    1 point
  47. Version pdf

    378 downloads

    be happy and comment if like it
    1 point





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