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Mechanical Engineering

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Development of aircraft and space vehicles. Propulsion, Aircraft Structures, Crafts, Atmosphere
T 06:52 PM rcgldr 
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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
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 97,585
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 34,202
i am looking into participating in a local firefighting robot competition and i have many of the parts necessary, one...
Jul30-09 08:15 PM
8 1,459
friends i am looking forward to give seminar on SBC.its quite interesting topic but unfortunately i am not getting...
Mar28-07 03:32 PM
0 8,305
Hi there,I'm doing a research on micro and nanomanufacturing and my question is what is the difference between serial...
Mar13-12 03:10 PM
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I have a three link revolute manipulator at the origin. I know all the link lengths. The joint angle for the third...
Nov22-11 04:58 PM
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if i have a three link massless manipulator (each with length l1 l2 l3) that has rotational springs at each joint, k1...
Sep7-10 06:09 PM
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hello can anyone advise me on serial & paralle pump connection, which i design and not sure what impact will the pump...
Sep19-11 10:07 AM
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Hello, I have to design a series planetary gear speed reducer. I have to ask first that what is SERIES planetary...
May25-11 05:55 AM
15 4,048
i have one problem for pumping treated water in line 4 bars there is no suitable pump with this suitable head so what...
May8-11 03:47 AM
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I'm building a robot for my junior project design class and I'm using a servo motor. I'm using a 555 timer as a...
Feb5-11 10:40 PM
1 1,140
Hello Forum, there are two typeos of servo motors. One of them is called continuous. does it mean that it can...
Apr7-12 10:02 AM
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Hi, Most places I read about these motors there is no indication of the maximum angle they can rotate, I currently...
Apr6-11 04:44 PM
0 684
Hi all, I am doing a project on Pick and Place system with 2 Servo based Axis control system. I am struggling in...
Oct12-12 01:18 PM
1 1,686
Okay, so I am having a problem, I'm not the greatest at math, here is the problem: I need a set of reduction gears,...
Jan9-14 10:40 PM
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Hi all, I am having problem doing this analysis now and I am new here. :D hi~ ok, so the problem is: I have a...
Apr14-10 09:26 AM
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This caught my eye - a rather unusual career opportunity. Jobs@SETI Institute
Sep1-04 11:13 PM
Ivan Seeking
0 1,908
Hey guys. I am new to engineering and I came to this because I wanted to make my own miniature jet engine. I have a...
Jan18-13 09:42 AM
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Hello, I would like to know what causes a RAGGING in sewage pump? Here are some causes that I can think of but...
Jan27-13 04:16 PM
1 726
how to find natural frequency of horizontal shaft with bearings at either sides, using (Ansys-classic). Please reply,...
May7-14 11:24 AM
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I am designing a flywheel for train and for that I am performing a shaft and bearing analysis with KiSSsoft. In...
Jun28-12 06:34 AM
3 2,338
I am designing a fan blade which is attached to a generator. The unit will be submerged in water. The blade will be...
Apr6-10 10:38 PM
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Hi. I am trying to figure out how to couple two seperately driven shafts so that the speed of shaft B is always at X...
Nov11-03 03:32 PM
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Hi guyz, I need some help in choosing the shaft couplings to connect the motor to the gear and from gear to the...
Oct10-11 07:01 PM
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Hi all I'm a bit confused on shaft critical speed theories and I need some clarification. I'll just say what I know...
May13-13 12:42 PM
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Dear all I have been given task of to reduce the deflection of overhanging shaft. shaft geometry is stepped one.If...
Jun22-08 11:09 PM
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Alright I am trying to measure the "instantaneous" velocity of a swimmer at around 400Hz. I plan on attaching the...
Jul18-10 08:50 PM
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Dear all, A timing belt pulley is mounted upon a shaft from this drive is being transmitted. In the shaft lay out...
Jun14-07 06:42 AM
1 3,610
Hey. This is my first post, I'm a Senior in Mechanical Engineering, I will help others as far as I can. I'm trying...
Apr20-12 08:20 PM
3 1,380
Part of my design project requires that I design two coaxial output shafts. I've gone through and calculated the inner...
Feb20-08 12:38 PM
2 8,464
Hello I am trying to calculate contact stress for a shaft on a hole. The purpose of this calculation is to see if...
Aug25-08 12:09 PM
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Pls help me calculate the shaft radius of a coupling system thats goin to rotate an prespex cylindrical at 100 rpm by...
Sep25-07 08:09 PM
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Attempting to use the formula: D = 1.72 (Tmax/σmax)^1/3 In my case I do not know σmax or at least how to calculate...
Oct17-08 07:01 AM
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Hi all, I have a hollow shaft of 2" outside dia to 1.25" inside dia, about 1.5 ft in length.I also have a notch...
May18-06 02:51 AM
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Hello I have done a Soderberg shaft design calculation, taking into account the stress concentration for a keyway....
Apr17-11 11:04 AM
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Hello, I apologize if this question appears simple; it may be but I cannot find the answer in any of my textbooks....
Dec7-09 11:28 PM
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I asked another question in a previous thread, but this is a new issue so here's a new thread: Basically I need to...
Feb19-09 09:38 AM
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I once had a chat with a Prof. at school, who talked about amoeba like robots. Since I am not so much into robotics,...
Jul6-06 06:32 PM
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How do you shape (shape in meaning-> bending angles that will catch air, not shaping the design itself) a propeller...
Jun17-08 08:16 AM
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How will the angle of the sharp edged orifice affect the flow pattern. Most of the angle is encourage to keep at 30 or...
Sep22-10 07:44 AM
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1. The problem statement, all variables and given/known data Designing a safety pin for gate valve, picture is...
Dec19-11 12:56 PM
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id like to think i did this right, but i just want to make sure. i cant do symbols so let d equal sigma. the stress...
Nov4-11 11:16 AM
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