Mechanical Engineering

# Blogs

## 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

## 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

## What is difference between underactuated motion and fully actuated motion ?

state difference between under actuated and fully actuated motion. explain with the example?

## 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

## Two Balls Rolling On An Incline

Mechanics Corner     A Journal of Applied Mechanics and Mathematics by DrD, # 37     29 April 2017 Two Balls Rolling On An Incline A Problem Where I Learned Something New Introduction     In previous articles, I have mentioned another web site called Physics Forums (PF) where people post problems for which they need help. In this note, I want to present to you one such problem and it solution, along with a new insight that came from another commenter at PF, one of the advi

## Difference between refrigeration and air conditioning

what is the difference between refrigeration and air conditioning? A major difference between refrigeration and air conditioning is the point of supply for the gases. Refrigeration systems have gas installed in a series of tubes. In old refrigerators, this gas was chloro-flouro-carbon, or CFC, but this has harmful effects on people, so refrigerators not contain HFC-134a. HFC-134a is the sole gas used as a coolant in refrigeration systems. Air conditioning systems use built-in chemicals, bu

## La fabricación de piezas por maquinado. Introducción.

Tema I   La fabricación de piezas por maquinado   1.1 Introducción Todo ingeniero debe tener una cultura general integral y, dentro de esta, como es lógico, una cultura de la profesión. Parte de la cultura del ingeniero mecánico consiste en conocer la historia de la ingeniería, y en el caso particular de este blog es importante comenzar por conocer muy brevemente la historia de las máquinas herramienta. Para ello se presentará  más adelante el anexo I, el cual trata sob

## Check what you know

1. In a steam turbine, the ............ is allowed to rotate? 2. Which valve controls the flow of steam into the turbine?         3. The blades in a ............... turbine are designed so that the pressure below the blade is always higher than the pressure above which causes them to move (or spin) as high velocity fluid flows through them.        4. Where in the steam path is the energy transferred from the steam to the turbine?          5. There is excessive corrosion

## I Thought You Knew

Recently I was interviewed by a Mechanical Engineering student on the importance of communications. I’m approaching 40 years in engineering practice so the examples began to flow and the student’s 15 minute time estimate for the meeting quickly turned into two hours. The meeting itself was a lesson in communications. My awareness of the root cause, that I will describe below, I believe made the information more valuable. The student and I covered many issues on the topic of communications,

## Base Acceleration Problem -- #36

Mechanics Corner A Journal of Applied Mechanics and Mathematics by DrD, #36   Base Acceleration Problem Introduction In a recent post (#35) I mentioned that I often participate in another forum called Physics Forums (PF). The problem that I want to discuss here is an elaboration on a problem that recently appeared at PF. I'm going to add a little bit of complexity to the problem (the problme as stated at PF was extremely simple) in order to make a particular point.

It's not F/A

## Explain the term hot cracking & cold cracking in welding and how these can be taken care of ?

Explain the term hot cracking & cold cracking in welding and how these can be taken care of ?   You can answer this question. You can like the best answer. You can share the question You can get updates of new questions on Facebook linkedin twitter & google plus

## What is an equivalent length of column ?

Write the relation between equivalent length and actual length of a column for various end condition  You can answer this question. You can like the best answer. You can share the question You can get updates of new questions on Facebook linkedin twitter & google plus

## What useful information are obtained from tensile test of ductile material

What useful information are obtained from tensile test of ductile material You can answer this question. You can like the best answer. You can share the question You can get updates of new questions on Facebook linkedin twitter & google plus

## Good News -- Bad News -- Rolling Disk in a Rolling Ring

Mechanics Corner     A Journal of Applied Mechanics and Mathematics by DrD, # 35       Machinery Dynamics Research, 2017 Good News --- Bad News Rolling Disk in a Rolling Ring      Introduction     Well, it looks like Mechanics Corner is back, at least in terms of an occasional post. It will probably be less frequent than previously, but there are just too many interesting things to talk about to remain entirely silent! The title for this post may leave you wondering wh

## Define "Mechanical property" of engineering material

Define "Mechanical property" of engineering material   State any 6 mechanical properties, give their definition  and one example of material possessing the property   You can answer this question. You can like the best answer. You can share the question You can get updates of new questions on Facebook linkedin twitter & google plus

## What are the various permanent and detachable fastenings.

What are the various permanent and detachable fastenings. Give a complete list with the different types of each category.   You can answer this question. You can like the best answer. You can share the question You can get updates of new questions on Facebook linkedin twitter & google plus

## List three principal factors that influence engine performance ?

List three principal factors that influence engine performance ?   You can answer this question. You can like the best answer. You can share the question You can get updates of new questions on Facebook linkedin twitter & google plus

## What is the purpose of using the governor in CI engine?

What is the purpose of using the governor in CI engine?   Which are the two major type of governors? You can answer this question. You can like the best answer. You can share the question You can get updates of new questions on Facebook linkedin twitter & google plus

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