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Development of aircraft and space vehicles. Propulsion, Aircraft Structures, Crafts, Atmosphere
Apr15-14 02:22 AM Seth.T 
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Gear heads unite to discuss Vehicle Dynamics, Safety Engineering, Performance, NVH, Ergonomics, Durability...
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Mechanical Engineering

- Development of machines. Mechatronics, Robotics, Engines, Drafting
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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 78,824
Dear all, I checked job numbers on indeed Canada, and when using Pro/ENGINEER and solidworks as search words, I got...
Dec17-13 11:25 AM
21 21,980
Hello, does anyone know why for a shaft with 2 bearings A and B, why is it not good engineering practice for both...
Jun8-08 01:31 PM
2 2,078
εHi, Based on that hoary schematic cube representation in 3D for stress-strain relationship. Stress tensor {σxx,...
Jan3-12 08:29 AM
4 3,432
What is 3D thrust-vectoring and Supercruise ? I frequently see this terms in Military Fighter Aircraft data. I know...
Oct16-06 08:45 PM
41 10,716
I'm stuck in a bit of a bind here. The adjunct teaching my aerodynamics course has decided to assign a last minute...
Nov30-11 10:55 AM
0 2,220
Hi, does anyone know how to solve 3DOFs? I got an attachment attached, however i do not know how to solve for e 6...
Dec7-08 10:48 PM
0 1,002
I was wondering anyone could help me figure out the type of valve I need. The application is I have two sources of...
Oct17-06 06:28 PM
8 4,361
I need to erect a hoist beam with a 10' span using square tubing. Which is stronger, 3"x3" 1/4" wall or 4"x4" x...
Nov12-10 05:42 PM
Adam Pease
10 26,923
Which is stronger 3x3 .25 inch thick square tubing or 4x2 .125 inch thick square tubing? When positioned...
Apr2-10 07:15 PM
2 5,229
Hello All, I am working on a final project for class, and I am trying to design a bar linkage claw design like the...
Dec7-13 07:04 AM
1 624
I'm trying to figure out info about 4 bar linkage.. I've ended up reading some technical info but nothing specific...
Jun29-12 04:04 PM
I like Serena
9 1,826
Hi everyone! I am not sure if I am posting in right place, please correct me if needed. I have an interesting...
Apr9-11 12:31 PM
1 911
Hey guys I am new to PF...m searching for new innovative ideas basically in production or renewable energy but m not...
Oct31-11 07:43 PM
11 1,516
I'm looking to design a radial turbine to deliver 5 watts from compressed air (60-90psi) at 20,000 to 40,000 RPM. 30%...
Feb21-10 08:20 AM
6 4,486
I have 10 weeks to complete a project on a Honda 5.5HP 4-stroke engine. The engine is for a kart. It is normally...
Feb19-08 01:20 PM
8 4,953
Hi there. I've been scouring google for a valve that will release a fluid (preferably a liquid) once 5psi has been...
Apr19-12 12:22 PM
6 1,834
Hi, I have an 6 DOF hobby arm robot (wrist=3DOF). I want to program it with quaternions. Because this has more...
Jun17-09 06:39 AM
0 1,755
Howdy, If I have the following configuration of nodes: 2---4--6 | \ | /| | \ | / | | \| / | | \/ ...
Apr19-13 11:27 AM
10 639
Can someone explain me how to put the inertial forces (tangential and centrifugal) on 6 DOF robot arm like this one...
May7-09 12:42 PM
0 6,790
Please help me... I need to make a solar boat for a project. the problem is this that i have two options of buying...
Jan3-10 12:38 PM
5 3,924
So I am trying to calculate the system responsee if a car is driving 30mph over an uneven road with a bumpb of height...
Dec22-09 09:08 AM
2 2,537
Hello, I need to transmit motion at a 90 angle, I was considering worm gears or bevelled gears, but then I thought...
Oct31-12 01:11 AM
2 745
in an undergrad introductory dynamics class, my professor used tensors, and assumed things went to zero to derive...
Dec28-12 10:44 AM
2 714
Hey guys, I got an idea in my head to have a bit of fun with a project idea. I want to make one of those claw games...
Dec7-11 02:50 PM
1 856
if there is a torque on a channel section twisting it axially what stresses do u expect to be on a side face..??
Jun3-10 07:31 PM
1 2,144
The "Burkland 411 Streamliner" holds the world speed record for a piston engine, wheel-driven vehicle. It has a...
Sep24-11 09:41 AM
22 3,932
Q. The air in a 6m x 5m x 4m hospital room is to be completed replaced by conditioned air every 20 min. If the average...
Apr20-05 05:26 PM
3 1,577
I am doing BE in mechanical engineering. I'm looking for a comprehensive book on finite element methods preferably...
Apr14-11 08:48 AM
3 1,264
What happens when a powerful Permanent NIB Rod Magnet with two poles is spun very rapidly on a 3 directional axis...
Jan2-06 02:19 AM
0 1,246
1. Why Gas turbines are placed in open atmosphere while steam turbines under roof in Combined Cycle Power Plant? 2....
Dec5-04 03:05 PM
5 2,241
Question: A cylinder moves steadily at constant speed through an inviscid, incompressible fluid. True or False:...
Mar17-12 04:29 PM
0 738
This is a revisit of a site that we have seen in the past, but there has been some updating and it looks promising. ...
Sep1-12 10:33 AM
5 2,734 I'm trying to draw the side-view and I'm having a bit of trouble. Is what I drew...
Mar18-12 06:12 AM
3 796
hello, im trying to do a fatigue analysis on a shaft but keep getting that it will never brake, which is...
Aug18-10 11:10 PM
4 1,689
Hello all, i've got a few questions about helicopter rotors. On which parameters does the thrust of an helicopter...
Feb3-07 10:29 AM
3 1,884
OK I have a few stupid questions, some of which I need to confirm answers too. 1. How does a car increase it's...
Dec29-06 01:13 PM
33 4,492
I'm now making a vacuum chamber. The gauge pressure inside the vacuum chamber is about 250 mmHg. There will be some...
Feb19-09 09:10 PM
jaap de vries
4 1,243
Hi all! I open a new thread since I am gonna post another picture, and this would overload the old thread. The...
Sep6-05 06:50 AM
3 1,394
Does anyone know of any gearing assemply like what I am looking for - - - sort of the opposite of a Geneva Mechanism. ...
Aug31-09 09:20 PM
Kenneth Mann
30 2,092
Hi, Just a general question about the ALE approach. In the ALE approach you have both the mesh velocity and the...
Jul22-11 03:27 AM
0 431
To harvest power from an abandoned gas well a binary system is used with nh3 as the prime mover for turbine What...
May7-09 01:35 PM
Lloyd Fowlie
0 567

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