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Invitation for participation in IMF2018

Hello, I'm glad to inform you that IMF'18 is live now and you can register your participation online. As the event is quickly approaching and your early responses would be exciting. Likewise, we are putting our best efforts to make your participation in IMF more worthful. We sincerely hope you will carry back pleasing memories that you can share to inspire your friends and peers. The excitement is growing every week and will feature 5 thematic plenary workshops with more than 50 e

Muralidhar Lakkanna

Muralidhar Lakkanna

 

3D printed aluminium alloy parts

I got my first 3D printed aluminium alloy parts. As the image shows it looks like it’s been manufactured using casting. The 3D printing technology used to print these parts is called Direct Metal Laser Sintering (DMLS). It’s one of many 3D printing technologies available these days  More pictures here

Senthil J Prakash

Senthil J Prakash

 

Manufacturing Process

Manufacturing processes have come a long  way since the industrial revolution and with the introduction of new technologies such as additive manufacturing, it will only get better and more advance. But as Mechanical and manufacturing engineers ( and Product designers) how well do we know various manufacturing processes available. Are we slowly losing some of the oldest manufacturing techniques.  Test your manufacturing process knowledge here and see how well you understand the different pro

Senthil J Prakash

Senthil J Prakash

 

Three-position synthesis with specific fixed pivots

======================================================================== Adapted from: Kinematics and Dynamics of Machinery by Robert L. Norton. ======================================================================== Download the much better formatted .PDF version from here: LINK ======================================================================== At times the designer would like to design a mechanism that would have to go through three positions. In this case the d

M.Shehata91

M.Shehata91

 

LightSail Energy

LightSail Energy is one of the most eminent startups that hails from Silicon Valley founded by Danielle Fong, Steve Crane, and Ed Berlin in 2009. LightSail Energy has the concept of low-cost grid-scale energy storage solution in order to optimise power grids, democratizing access to energy and adhere on sustainable development. Investors such as Khosla Ventures, Innovacorp, Triple Point Capital, Peter Thiel, Bill Gates have invested in LightSail Energy. LightSail Energy produces one of the

Shalini Chakraborty

Shalini Chakraborty

 

VOXEL8

Voxel8 was founded in 2014 by scientists and engineers from Harvard University. This company was supported by Braemar Energy Ventures and ARCH Venture Partners. This company aims at developing digital footwear manufacturing systems which revolutionalize how footwear products are designed, manufactured and sold to the customers. In July, the company raised funding of $12 million to which Autodesk also contributed.It has also been named as one of the MIT Technology Reviews of 50 smartest companies

Shalini Chakraborty

Shalini Chakraborty

 

can centrifugal pump handle gas with liquid?

Triple-volute centrifugal pump can handle up to 20 percent entrained air, where a typical centrifugal pump can only deal with air entrainment levels of 5 to 8 percent. Along with entrained air, cavitation is a top candidate for causing pump problems. Cavitation occurs when the pump’s internal pressures are lower than the vapor pressure of the liquid which results in rapid vapor formation within the pump which collapse as the liquid is swept into the higher pressure regions of the pump.

parsottam

parsottam

 

Pneumatic or air braking system in automobile | Construction and working of pneumatic braking system

A brake which uses air as a working fluid is known as pneumatic brake. The system actuated to apply this phenomenon is know as pneumatic brake system. An pneumatic brake system or a compressed air brake system is a type of friction brake for vehicles in which compressed air pressing on a piston is used to apply the pressure to the brake pad needed to stop the vehicle. Construction of pneumatic braking system   The simplest air brake system consists of An ai

Rishabh Pandey

Rishabh Pandey

 

#44 Mouse Trap / Pendulum Dynamics Challenge

Mechanics Corner     A Journal of Applied Mechanics and Mathematics by DrD, # 44       Machinery Dynamics Research, 2017      Mouse Trap / Pendulum Dynamics Challenge - Part I Introduction     Mice are a problem all over the world, and as a result, I'm sure that there are mouse traps of various sorts found everywhere. It would be utterly amazing if this were not true! In the USA, there is a very common type of mouse trap that I have seen used all my life, the sort of system

DrD

DrD

 

#43 Four-Bar / Toggle Linkage Mechanism

Mechanics Corner A Journal of Applied Mechanics and Mathematics by DrD, #43 (c) Machinery Dynamics Research, 2017   Four-Bar / Toggle Linkage Mechanism Introduction   I believe that it would be correct to say that all of the single degree of freedom mechanisms that I have discussed on ME Forums have involved only a single loop. This might lead a reader to conclude that a single degree of freedom implies only a single loop, and vice versa, that a single loop imp

DrD

DrD

 

Triple Rocker

Mechanics Corner A Journal of Applied Mechanics and Mathematics by DrD July 31, 2017 Triple Rocker Over at the Kinematics of Machines club, I recently ask if anyone could show me an example of a four-bar linkage that would be classed as a triple rocker. In the terminology of four-bar linkages, a link is classed as either a crank or a rocker: Crank - can rotate in a complete circle Rocker - cannot rotate in a complete circle] Thus my question was for an example

DrD

DrD

 

Engine

About engine;                          An engine or motor is a machine,designed to convert one form of energy into mechanical energy.Heat engine burn a fuel to create heat, which is then used to create a force. Electric motors convert electrical energy into mechanical motion; pneumatic motors use compressed air and clockwise motors in wind up toys use elastic energy. In biological systems, molecular motors, like myosins in muscles, use chemical energy to create forces and eventually motion.

Sijo

Sijo

 

#42 Gear Pair Problem

Mechanics Corner     A Journal of Applied Mechanics and Mathematics by DrD, # 42     © Machinery Dynamics Research, 2017 Gear Pair Problem      Introduction     In this post, I want to discuss a seemingly simple problem currently being discussed at Physics Forums (PF). The original question, posed by someone, perhaps a student but perhaps not, is quoted below:       So, we have a pinion and a gear. I give an input torque Tp in the clockwise direction.

DrD

DrD

 

Sickle Innovations

Agriculture is the backbone of the strong economy. Agriculture is demographically the broadest sector and plays an important role in the overall economic development in India since India ranks second worldwide in farm outputs. So, this is another Mechanical Startup Story from the Agriculture based start-up Sickle Innovations. Sickle Innovations started in 2014 by the encouragement of Centre for Product Design and Manufacturing and Indian Institute of Science Bangalore. Since in Indian demog

Shalini Chakraborty

Shalini Chakraborty

 

ATHER ENERGY

Holla People!!!! Since it has been a long time I was waiting for starting the blog on Mechanical Startups, my first entry to the new blog starts with the few hardware startups in India. ATHER ENERGY is a privately owned founded by Swapnil Jain and Tarun Mehta in 2013 headquartered in Bangalore Karnataka.  This budding startup has received fundings from Hero Motocorp, Tiger Global & Flipkart. Profoundly being a part of Automotive industry and producing electric vehicles, in the in-house

Shalini Chakraborty

Shalini Chakraborty

 

Modeling Hysteresis

Mechanics Corner A Journal of Applied Mechanics and Mathematics by DrD, #41 (c) Machinery Dynamics Research, July 2017   Modeling Hysteresis 1. Introduction What do you know about hysteresis? Many Mechanical Engineers will associate this term with the magnetization curve of a piece of magnetic material, and quickly conclude, "I don't have to worry about that!" But that would be wrong. While hysteresis does occur in magnetic systems, it happens in many other situatio

DrD

DrD

 

Two Short Math Problems

Mechanics Corner A Journal of Applied Mechanics and Mathematics by DrD, #40 July, 2017   Two Short Math Problems Do you ever read the ads that appear on ME Forum? I try to avoid them as much as possible, but an organization called BRILLIANT has put up some interesting math problems of late that have caught my eye. Two of them are the subject of today's post. The first problem that I want to discuss is actually more recent than the other, but it gives us a good plac

DrD

DrD

 

Comments on a Textbook - Khurmi & Gupta

Mechanics Corner A Journal of Applied Mechanics and Mathematics by DrD, #39 (c) Machinery Dynamics Research, 2017 Comments on a Textbook Theory of Machines by R.S. Khurmi & J.K. Gupta 1 Introduction Recently, through the wonders of the Internet, I have come across a copy of the textbook Theory of Machines by R.S. Khurmi and J.K. Gupta (S.Chand & Co., Ltd., 2005). Since theory of machines has been my primary technical interest since the early 1980s, I was interested

DrD

DrD

 

Rocket Homework Problem

Mechanics Corner     A Journal of Applied Mechanics and Mathematics by DrD, #38       Machinery Dynamics Research, 2017 Rocket Homework Problem Introduction     Most engineers find problems involving rockets to be exciting. There is something about a rocket that fires our imagination, whether we think of going to the moon or one of the planets, or simply of shooting down an incoming missile. The subject of this post involves a rocket on a mobile launcher. The rocket is i

DrD

DrD

 

Where Would You Publish It?

Mechanics Corner Where Would You Publish It? Since long before my time, there has been a desire to have important results published where they become accessible to many others. Some of the great names, such as Newton, Euler, Bernoulli, and others, we know primarily because of what they published. Their work formed the fundamentals upon which modern engineering and science is built. Publication of research results has long been particularly important to faculty members; it is often take

DrD

DrD

 

The True Value of Certification

The link below is an article about the value of certification for manufacturers. It is a heavy sell for certification. In my opinion it misses the most basic benefit of certification, which is the path to getting certified. http://www.machinedesign.com/industrial-automation/why-do-manufacturing-certifications-matter?NL=MACD-001&Issue=MACD-001_20170523_MACD-001_398&sfvc4enews=42&cl=article_1_b&utm_rid=CPG05000005789847&utm_campaign=11223&utm_medium=email&elq2=ac7b
 

The Exponential Age

This came to me via e-mail. I am sure little of this is 100% correct. But just think if just 50% are 50% correct.   The Exponential Age?  Just a few things for us all to ponder, especially the younger ones amongst us.  Did you think back in 1998 that 3 years later you would never take pictures on film again?        In 1998 Kodak had 170,000 employees and sold 85 % photo paper worldwide. Within just a few years their business model disappeared and they went bankrupt. Wha
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