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- The design, building, and use of engines, machines, and structures. For any engineering topics not applicable to the categories below.
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We always have threads on various pieces of the puzzle, but what I want here is for people to post a coherent plan of...
Mar17-14 06:22 PM
mfb
982 197,181
A number of questions, particularly involving homework, often involve some basic engineering. In the US, the...
Nov22-13 02:02 PM
rneale
38 50,402
In response to the growing needs of our membership, we're excited to announce the restructuring our Science Education...
Oct12-05 01:47 AM
Moonbear
0 20,393
i want to produce 1000 K/nm of torque using motors and gear , output rpm needed is 30 and 1000 k/ nm of torque 1)...
Y 07:26 PM
Baluncore
8 321
I have a motore with a propeller anchored to a load cell to measure the lift produced at varying power inputs. This is...
Y 05:41 PM
NascentOxygen
1 180
I am planning building a sub. I am tring to find the amount of energy it takes to move it. I think it should be...
Y 06:45 AM
PhysicoRaj
4 220
I'm studying using the popular Lindenberg book. It suggest I have to memorize about 30 elements and their respective...
Y 01:11 AM
paisiello2
1 162
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Hi! I'm stuck on a very basic problem while trying to design a product. Basically, I need to know how to calculate...
Apr15-14 07:24 PM
Baluncore
4 261
I'm not sure if this is the right section... But Assume you have a medium sized box (about as big as a large...
Apr15-14 05:14 PM
mfb
6 365
hi,could some one please help me to understand how to find the density of water using a specific gravity bottle?and...
Apr15-14 10:03 AM
Baluncore
1 471
Hi, I'm trying to choose the right motor for a test rig I've built. I have a shaft attached to a cylinder that...
Apr15-14 05:05 AM
deadstar33
8 409
My boss has a boat load of extra PVC piping laying around the shop and I wanted to use it to make a pipe organ. I need...
Apr14-14 03:53 PM
AlephZero
11 554
Hello, I'm new to these forums and they seemed like an excellent way to have my questions answered. I'll start by...
Apr14-14 02:09 PM
kibestar
0 251
Hi all, Generally boundary condition (Dirichlet and Neumann) are applied on the Load Vector, in FEM formulation. The...
Apr14-14 12:45 AM
mdn
0 250
The project that Im working on. I am aerating a pond with an air stone diffuser. The diffuser requires 2 CFM of air...
Apr11-14 10:13 PM
Baluncore
3 365
I am designing a surgical instrument which will be impacted many times over its life cycle. We are trying to...
Apr10-14 07:24 PM
MechEgr
6 455
Im planning to build a drawer which can be opened using an electric switch. Ive thought of perhaps using a strong...
Apr10-14 11:25 AM
berkeman
1 380
Hey Guys, I'm not a physics student, not a physics lover but so admire those people that know physics!! Well thats...
Apr10-14 05:57 AM
anitagreen
6 1,153
Hi, I need clarification on the difference in head loss for turbulent flow and laminar flow. I understand how the...
Apr9-14 11:45 PM
casesam
2 347
Please excuse me if this isn't a physics question - I'm not sure where it belongs. Felt, such as this:...
Apr9-14 01:08 AM
icor1031
10 718
Hi all, It is well know that, rectangular or quadrilateral element gives better result over triangular meshes in...
Apr8-14 11:50 AM
mdn
16 513
I am working on plans for a portable air motor system, to power a scooter discretely. The motor I have picked out is...
Apr8-14 06:24 AM
Barron
9 515
Hello, I want to simulate shocks acting on the "mass spring damper" in motion simulations in SolidWorks....
Apr7-14 04:02 PM
asteorit
0 310
This is something pretty new, why do you think that nobody take the risk to build it, up to these days? I was looking...
Apr6-14 08:02 AM
Aouregon
7 834
Hey Everyone, I'm in the midst of designing a laser interferometry system to measure flatness and to level a...
Apr5-14 12:09 PM
borkborkbork
7 434
How can the neutral axis of a concrete column under biaxial bending be determined. I mean if the load P is given along...
Apr4-14 02:36 PM
mohamadh95
4 476
In a V-Belt Drive, it is said that when a New Belt is installed, the Tension Ratio shouldn't exceed 5:1. But isn't...
Apr1-14 09:59 AM
AlephZero
1 620
My company is working on a few concept ideas for our field. Currently we are looking at jump packs concept work. We...
Mar31-14 11:52 PM
MadnessIndy
14 455
Hey all, I have an interview coming up and I have been asked to consider the following question: "What are the...
Mar31-14 03:16 PM
berkeman
3 745
While trying to learn kalman filters, I see contradictory info for a simple gyro State Space representation. Please...
Mar31-14 01:08 AM
chingkui
9 682
Finally finished up the snow load calculator. Moved it to this page: ...
Mar29-14 08:35 PM
medeek
12 1,189
struggling to find info on this so figgured i'd as. For two beams attached to each other, one a straight catilever...
Mar29-14 08:28 PM
paisiello2
1 649
I'm creating a computer implementation to solve planar trusses. And I'm not sure how to check if the truss is solvable...
Mar28-14 04:54 PM
nvn
1 591
I am learning how to do temperature and pressure conversions for a process technology class. do you have any advice...
Mar28-14 11:39 AM
Mark44
6 451
Do you know of any good wookbooks or something that has alot of question about converting pressure and temperature ? i...
Mar28-14 06:11 AM
satchurated
1 328
Hi all ! I currently in the process of retrofitting an old process line in which I require the outlet pressure to...
Mar28-14 01:46 AM
Lok
1 385
I wrote this small Excel macro to gather data from vehicles database: Sub ImportCarQueryDB() Call...
Mar27-14 08:45 AM
jumpjack
3 611
Hello Everyone I'm trying to get a deeper understand about this, and I hope you guys can shed some light on the...
Mar27-14 06:50 AM
Barron
3 766
Suppose there's a writing made by many small drones,each carrying a light and together making a writing. If the...
Mar26-14 03:55 PM
jedishrfu
5 391
Hi all, I am trying to calculate the damping coefficient of a linear viscous dashpot/damper given the dimensions of...
Mar26-14 06:39 AM
256bits
3 463
Most graphs show that when wheel slip is zero then the friction is zero. But I can't get it, as when the vehicle stand...
Mar24-14 12:14 AM
AlephZero
7 561
Hi I am working on a robot that has a spinning 3D laser scanner. It rotates about two axis and collects data. In...
Mar23-14 06:32 PM
Mandelbroth
3 337

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