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Mechanical Engineering

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Development of aircraft and space vehicles. Propulsion, Aircraft Structures, Crafts, Atmosphere
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Gear heads unite to discuss Vehicle Dynamics, Safety Engineering, Performance, NVH, Ergonomics, Durability...
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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 34,446
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 97,868
Hey, So I`ve been trying to wrap my mind on how to solve this problem. I`m trying to use a CFRP Sheet as sort of a...
T 10:16 AM
Greg Bernhardt
1 168
Hello everyone, Assume that you have a flat plate, that is moving up and down in a sinusoidal motion with the...
T 05:01 AM
1 109
Hello everyone, my question is: Would be ok to use a self locking gear like a worm gear for a solar tracker system on...
T 03:37 AM
1 115
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I have been looking for quite some time for a source of high quality prototyping parts that I can use to quickly make...
Y 03:25 PM
3 854
hi please if any one can tell me how i can get the following equation (attachments) of deflection for statically...
Y 01:45 PM
6 319
Hello there! I'm working for about 2 months to build a system for getting digitally values about the angle of...
Y 09:53 AM
6 157
Hello guys I am working on a z axis lift driven by stepper to lift and lower the platform precisely . It will be...
Y 02:34 AM
3 147
I am making a basic structural engineering software program for modelling cylindrical pipes. I want to model the...
Aug30-14 06:21 AM
1 146
I need a contraption that can keep a ball spinning, smoothly, at a slow speed. If it has a variable speed control,...
Aug29-14 08:32 PM
10 161
I am new to pumps and wondering how to calculate the total static head for the system below....
Aug29-14 04:18 PM
Greg Bernhardt
1 238
Hey all, I built a fixture for leak testing cylinder valves. The potential leak points are tested using very small...
Aug29-14 03:40 PM
2 225
I've been trying calculate the capacity of one of our dust collection systems. It features four vacuum slots lined up...
Aug29-14 11:23 AM
1 151
I see that pressure regulator curves show different flow rates, but I am confused by this because I was under the...
Aug29-14 09:51 AM
2 170
I've been thinking about the building-design simulation, and am hoping that someone can point me toward more complete...
Aug29-14 01:08 AM
5 263
Hello everyone, I've been trying to figure out how i can have two different inputs that are switchable from one to...
Aug28-14 04:33 PM
3 171
im looking for engines that are known for being extremely high effiency. im not just talking about high efficency...
Aug28-14 03:58 PM
2 177
Hi, I was thinking about this and hit a "wall". If you have a vertical rod with constant area that is attached to...
Aug28-14 11:47 AM
1 109
Regarding flight control for planes, there exist 3 axes: roll, pitch, and yaw. Something that I've been curious of...
Aug28-14 07:12 AM
11 221
I'm trying to design mechanism similar to this video where i have...
Aug27-14 01:23 PM
2 169
As far as I understand a rod that has an angular velocity is static. Nonetheless, if we analyze a particle in the rod,...
Aug27-14 06:56 AM
Simon Bridge
1 157
Hello With regards to a common example in most fluid mechanics books where there exists fluid between two...
Aug27-14 01:57 AM
167 20,075
For example, in chemical plants, if a pressure gauge is on a pipe and it reads 5000 kPa, is this a static or total...
Aug26-14 11:17 PM
1 135
We are using a childs wagon as the base for a parade float. The float will be decorated to look like a canoe. We...
Aug26-14 08:16 PM
1 154
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...
Aug26-14 06:58 PM
2 295
Hi all, I'm new to this forum, but have used it before for school. I'm currently working on my MS mechanical thesis...
Aug26-14 04:17 PM
4 138
Hello, Looking for some advice on increasing bending stiffness of a mild steel 1" x 0.065" round tube. This is for a...
Aug26-14 02:28 PM
7 186
I know that adibatic process means no heat transfer. i.e., →PV\gamma =constant. Where \gamma = 1.4 for diatomic...
Aug26-14 11:10 AM
3 143
My background is electrical engineering, but I have a question regarding the mechanics and physics regarding plane...
Aug25-14 10:55 PM
5 231
Take a cylinder in cross flow. We know that for Reynolds number greater than 40, we will start to see vortex shedding...
Aug25-14 02:00 PM
10 474
I need to build a table saw miter gauge at about 1/4/-1/8 scale. The center axis of rotation seems pretty...
Aug25-14 03:52 AM
1 206
Hello everyone, I am wondering how to properly go about calculating the stresses caused by bending on an angled...
Aug24-14 10:55 AM
2 344
Im currently studying a course on the mechanics of solids..the reference book i use is by Popov..But i cant...
Aug24-14 08:01 AM
1 209
Hi all, The process of throttling in refrigeration is taken to be isenthalpic. And as enthalpy remains constant...
Aug23-14 01:12 PM
jack action
4 248
I've been thinking about the building-design simulation, and am hoping that someone can point me toward more complete...
Aug23-14 07:38 AM
1 239
I need to compute for the relief capacity (gpm or lb/hr) of a 10" rupture disc with relief valve set at 180psig....
Aug22-14 06:27 PM
2 243
Hi all, first post on PF! I was just wondering if a motor that is specifically designed to generate the most...
Aug22-14 05:53 PM
6 257
We have roller setup which is to be driven by a motor. The roller dia is 90 mm. A shaft which is connected to its end...
Aug22-14 02:25 PM
5 240
Hello PF, Can anyone recommend a set of governing equations for the design of a simple elastomeric balloon that...
Aug21-14 07:32 PM
6 244
Hi all, I am not able to physically understand the term "load" when we refer to Single Shaft Gas Turbine engines used...
Aug21-14 03:25 PM
jack action
3 363

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