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General Engineering

- The design, building, and use of engines, machines, and structures. For any engineering topics not applicable to the categories below.
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Jan16-12 Greg Bernhardt
We always have threads on various pieces of the puzzle, but what I want here is for people to post a coherent plan of...
Aug13-14 11:01 PM
jim hardy
1,039 236,897
You're just one click away from posting your homework help request! Click here to post.
May17-14 06:51 PM
Redbelly98
0 2,652
A number of questions, particularly involving homework, often involve some basic engineering. In the US, the...
Nov22-13 02:02 PM
rneale
38 61,772
Hi All, So here's the problem. A project I am working on has a composite metal panel assembly, which a previous...
Sep25-13 04:46 PM
AlephZero
4 1,774
Hello I am currently an aerospace engineer at university and was beginning to wonder whether it was the best idea...
Sep24-13 09:25 AM
boneh3ad
3 1,678
I just downloaded this software since it is free and can supposedly be used for CAD. Does anyone have experience with...
Sep24-13 07:54 AM
timthereaper
4 1,799
I often leave my golf clubs in the car rather than bothering to take them out I just wondered how much extra this is...
Sep22-13 08:13 PM
skeptic2
4 1,512
How do I find deflection (displacement) in point C at the end of the beam? Answer is to be given in mm. There is a...
Sep21-13 10:12 PM
nvn
4 1,484
Hello, I'm working on my first year engineering project. I'm an electrical engineering major but this is a general...
Sep19-13 02:10 PM
TimNJ
8 2,432
Does anyone know any Forumulas or how to calculate the dimensions of a pulse jet engine? I have already built...
Sep19-13 01:04 PM
Keith R
4 6,975
hi, i am doing an electric bicycle project. The basic improvement required would be the asist of the motor using...
Sep19-13 02:36 AM
a_asi
2 1,233
Hello, I was hoping someone might be able to help explain what the following are, I have found many articles but...
Sep18-13 07:00 AM
Baluncore
1 1,516
Hi, I am currently working on science project. But I have a problem. I am conducting Chladni pattern experiment and...
Sep18-13 06:52 AM
Baluncore
2 1,399
All- I'm trying to work through a problem in my head and am looking for a little guidance. I want to build a...
Sep18-13 06:12 AM
SteamKing
21 3,098
Hi all, I have a very basic question regarding the topic of stress.While deriving the equations of equilibrium for a...
Sep16-13 08:13 AM
timthereaper
5 1,186
Hello, I'm new here and that's because I've run into a problem I can't reliable find anywhere else. I guess I need...
Sep15-13 10:37 AM
Baluncore
1 1,272
I just got my hands on a solar battery charger with a set of usage specifications that makes me believe it will only...
Sep15-13 09:07 AM
mfb
1 1,008
Hi all, I am after trying to find the plastic section modulus about both local axes (x & y) after having calculated...
Sep14-13 11:51 PM
SteamKing
1 1,497
Hi guys, I'm new to this forum and first of all would like to say Hello to all of you. I'm an R&D Engineer ( not...
Sep13-13 01:42 AM
acbel
2 1,414
On a hot day the AC in my car starts working immediately pumping cool air, on a cold day I have to wait till the...
Sep10-13 09:42 AM
johnbbahm
5 1,190
hi all, i need to know what relation should i used for subcooled liquid, for example,a rigid tank is filled with...
Sep10-13 02:02 AM
ThomasO
1 1,236
I am trying to predict pressure drop in a pipeline with a range of different materials. I have used a surface...
Sep6-13 10:06 PM
SmwhrInSpaceX
2 4,125
Hello. I currently hold a B.Sc in Chemistry with a double minor in Math and Business Administration. I have had great...
Sep6-13 06:55 PM
Aero51
2 1,862
Hello, I'm a mechanical engineering major/electrical engineering minor university student. A huge part of...
Sep5-13 02:15 PM
KiltedEngineer
4 1,521
Hello Im trying to work out which material would best withstand a object weighing around 17kg falling approx...
Sep4-13 07:30 AM
missfifer
0 1,048
I'm trying to calculate the power required from forced induction with this equation; W˙=m˙CpT1ηc⎡⎣(P2P1)(γ−1γ)−1⎤⎦...
Sep4-13 04:32 AM
James125
4 1,265
hello, does any one know if lagging a turbo and exhaust system would cause failure of the turbo. my thought is that...
Sep3-13 01:43 PM
etudiant
3 1,013
Hello, We are a solar energy solutions provider and we are looking to explore CSP plants at smaller scales. I...
Sep2-13 04:02 PM
marciokoko
11 1,769
When performing a 2 hour pressure test on a waterline, the formula for calculating the allowable water loss over the 2...
Sep2-13 10:49 AM
SteamKing
6 1,371
Verilog is a dataflow language. Is module instantiation a concurrent process in verilog?? I mean if we are using...
Sep1-13 08:42 AM
klen
0 837
Dear reader, I thought I was getting the hang of converting units but came across a thermal conductivity value and...
Aug31-13 10:28 PM
Simon Bridge
7 1,090
Hello everyone! Could you please explain to me what design stages/phases exist? And in what order are they placed?...
Aug31-13 11:41 AM
Jack8rkin
9 1,540
Hello how are you guys?? so my question is how important programming languages are in the Mechanical Engineering ??...
Aug30-13 10:03 AM
rdrewd
5 1,583
One of these days on the TV I have seen news which has shaken me: Elon Musk has decided to intrigue the world - has...
Aug29-13 07:56 PM
mheslep
22 3,774
Like a stretchable antenna structure, i have an arm in my project and i want that arm to expand on command so i was...
Aug29-13 03:35 PM
chemisttree
2 922
Hi all, I have started with my understanding of pressure vessels and i have some queries on the topic. 1) I...
Aug28-13 05:54 PM
AlephZero
3 2,060
Hey all, I'm not sure if this belonged in the physics or engineering forum, but here's the question: has quantum...
Aug26-13 05:54 PM
Simon Bridge
1 1,067
Im on the tech team doing an outdoor concert series. I have a dance show coming up this weekend and Im having a hard...
Aug26-13 05:03 PM
Travis_King
11 1,355
Dear all, I am a bit stuck trying to find out how heat is transfered through an evaporator in a refrigerator. I...
Aug26-13 01:03 PM
sanka
1 945
I'm current learning MatLab before i start my second year of engineering and i don't really understand a fundamental...
Aug26-13 10:54 AM
sanka
1 705
Often on high points of steam heated Shell&Tube heat exchangers etc. I've seen a vent specified to allow air and other...
Aug25-13 08:11 AM
rollingstein
2 1,153
Hi PF, I'm working on a problem for some guys and I need to add on to an existing machine. Attached is a back view of...
Aug23-13 01:14 PM
Legaldose
1 862
I want to make the input sound to go directly to the speaker without using any computer. Can you please help me?
Aug23-13 06:05 AM
mfb
6 1,410

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