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Mechanical Engineering

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Development of aircraft and space vehicles. Propulsion, Aircraft Structures, Crafts, Atmosphere
T 06:14 PM AlephZero 
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Gear heads unite to discuss Vehicle Dynamics, Safety Engineering, Performance, NVH, Ergonomics, Durability...
T 09:12 PM Simon Bridge 
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Jan16-12 Greg Bernhardt
Dear all, I checked job numbers on indeed Canada, and when using Pro/ENGINEER and solidworks as search words, I got...
Aug4-14 01:56 PM
26 33,878
Hi everyone, Maybe this resource is new for someone. It's a collection of videos made in the 60's by the very best...
Mar6-13 10:50 AM
61 97,258
Hello PF, Can anyone recommend a set of governing equations for the design of a simple elastomeric balloon that...
T 07:32 PM
6 91
Hi all, I am not able to physically understand the term "load" when we refer to Single Shaft Gas Turbine engines used...
T 03:25 PM
jack action
3 196
Hey all, I built a fixture for leak testing cylinder valves. The potential leak points are tested using very small...
T 02:50 PM
0 55
Hi all, The process of throttling in refrigeration is taken to be isenthalpic. And as enthalpy remains constant...
T 11:12 AM
0 62
Hello With regards to a common example in most fluid mechanics books where there exists fluid between two...
T 09:56 AM
161 19,434
I have been looking on the web but I can't seem to find a textbook answer that describes the difference between...
Aug19-14 09:08 PM
Greg Bernhardt
1 174
I have (what is seems to me) and easy statics problem to solve. I simply need to work out the tension in a single...
Aug19-14 08:15 PM
1 247
hi please if any one can tell me how i can get the following equation (attachments) of deflection for statically...
Aug19-14 02:31 PM
1 143
I am going through Shigley's Mechanical Design book and have a quick question on fasteners. Sometimes when calculating...
Aug19-14 04:19 AM
1 168
Greetings, lurked for a long time, but I need some help here so I joined up. Please have some patience with me if I...
Aug18-14 12:09 PM
3 195
I want to do some prototype work that may need some springs. they are long springs I will need to find cheep part so I...
Aug17-14 09:50 PM
1 157
Hi, all. I have an idea I want to try out for a muffler design on a single-cylinder engine (174.5 cc liquid cooled...
Aug17-14 08:36 PM
7 311
Dear PF, This is my first post, so please pardon any faux pas. I've had some difficulty wrapping my head around...
Aug17-14 01:33 PM
jack action
10 452
Hi everyone I am trying to solve non linear heat conduction where thermal conductivity is function of temperature,...
Aug17-14 12:17 PM
2 275
i have a 20.5ft c3x5 steel channel with a point load at the exact center and i wanted to determine its maximum...
Aug16-14 06:11 PM
2 259
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I have a sealed syringe with air at known pressure P1, temperature T1 and volume V1. at some time I increase the...
Aug16-14 08:11 AM
jack action
1 142
Hi, How to calculate the filling rate of 32mm dia pipe(15m length) arrange vertically from ground to second floor...
Aug15-14 10:27 AM
5 236
I am looking to be a design engineer and I was waning some recommendations on what books are good reference books for...
Aug14-14 08:19 PM
1 171
I was really wondering if the number of blades in a propeller influenced the power it has, are too many blades bad...
Aug14-14 12:29 PM
7 282
Can some one help me figure lifting capacity for this spreader bar? Thanks
Aug14-14 03:45 AM
1 180
Hello Physics Forum. I'm looking to use the vapor pressure of a liquid to apply a constant pressure to a piston. The...
Aug13-14 05:16 PM
7 292
I am trying to size a needle valve to make sure that it can allow the required flow rate at the fully open position...
Aug13-14 10:55 AM
5 239
Hey guys! I am currently creating some automated snips for trimming plants. I am using auto desk inventor to design...
Aug13-14 08:00 AM
3 307
Take an 80 dollar pair of adjustable focus glasses, ...
Aug12-14 03:20 PM
6 864
Hello, I am trying to figure out how to determine how much a simple steel plate will bend with "x" amount of weight...
Aug12-14 08:16 AM
jeff davis
4 274
Take a cylinder in cross flow. We know that for Reynolds number greater than 40, we will start to see vortex shedding...
Aug12-14 07:49 AM
6 296
Tonight I've had a deceptively simple question that I've found maddeningly difficult to get an answer to. What I'm...
Aug12-14 05:10 AM
13 263
I am looking for a tether system so I can make a connection to the seabed from the sea surface. Does a system like...
Aug12-14 04:45 AM
7 319
I am doing my research thesis. I want to operate a steam turbine through biogas. I need to know how do I calculate the...
Aug11-14 09:49 AM
2 251
Hi, I made a metal cylinder that is the SAME size as my 400g propane cylinder (picture:...
Aug10-14 10:05 AM
2 276
Last night I tried answering a question I've had for a while- can you really do a proper FEA analysis using free (or...
Aug10-14 09:53 AM
18 14,605
Hi All, I'm playing around with an arduino, and have build a PID controller that controls the temperature of a...
Aug10-14 08:42 AM
10 423
So I've been trying to understand a concept in gyroscopes and I hope the guys and girls here can help me with it. I...
Aug9-14 04:51 PM
4 323
Working on a project where we have been asked to utilize waste heat from a combustion process in order to increase the...
Aug8-14 08:09 PM
6 386
Hello All, Some background information: I'm a co-op engineering student and recently my supervisor asked me to do a...
Aug8-14 04:19 PM
3 248
Hello, I'm new to this forum, and I hope you can help me. I'm working on a project to build my own motorized...
Aug8-14 03:21 PM
8 914
I have a non-rigid vessel holding a fluid with a tube for fluid flow out. It is initially at equilibrium pressure with...
Aug8-14 01:35 PM
1 284
First time writing , hope all goes well. Looking to understand the properties of rare earth magnets, are you able to...
Aug8-14 02:08 AM
2 316
hello everyone is anybody here using comsol multiphysics? i'm trying to model a tube which the inlet is a fully...
Aug8-14 01:01 AM
2 1,621

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