⚙ Mechanical Engineering

Is the drum of a crane a full cylinder or a hollow cylinder?

Hi there everybody, I'm trying to design a 5 ton gantry crane and I have desiged the wire rope and drum diameter alread...

5 comments posted 22yrs

posted by m_kazemi_manesh

5 comments posted 22yrs posted by m_kazemi_manesh

Bearing Selection

Dear All, I am looking for a good reference or info regdarding the selection of bearings (especially for plain journal,...

0 comments posted 22yrs

posted by rsbalu2

0 comments posted 22yrs posted by rsbalu2

Gear for articulated robot, harmonic drive?

Hi, I'm working on a project where I need a gear with the advantages of the harmonic drive gear. However, I understand...

3 comments posted 22yrs

posted by kassow

3 comments posted 22yrs posted by kassow

Stress question for the gurus

I have a simple question about some stress values used in an analysis I'm reviewing. Here's the material values the ana...

2 comments posted 22yrs

posted by dave.harper

2 comments posted 22yrs posted by dave.harper

wire feed nail gun

charset="iso-8859-1" Does anyone know of a source for a nail gun that feeds from a coil of wire? I would like to find s...

2 comments posted 22yrs

posted by BrentRoth

2 comments posted 22yrs posted by BrentRoth

ANSYS FSI modeling

Hello, I'm not sure my question is 100% relevant to this newsgroup, but maybe someone here familiar with ansys can prov...

0 comments posted 22yrs

posted by dmalleo

0 comments posted 22yrs posted by dmalleo

Making wax pellets

I need to make quantities of wax pellets from molten wax. The pellets are 6mm diameter and 15mm length. Can anyone plea...

2 comments posted 22yrs

posted by valuers

2 comments posted 22yrs posted by valuers

Self Taught Engineers

Are there any self taught Engineers here? Replies will be responded to, thanks!

33 comments posted 22yrs

posted by j

33 comments posted 22yrs posted by j

FEAPpv coupled thermo-mechanical

I'm trying to simulate what I believe is a simple transient coupled thermo-mechanical problem using FEAPpv. The outline...

0 comments posted 22yrs

posted by c4j3aswell12

0 comments posted 22yrs posted by c4j3aswell12

Effectiveness of Diameter Reduction in Hydraulic Cylinder Blind End

Hydraulics is not my specialty, so please excuse me if I mis-use terminology, etc. We have a design with a hydraulic cy...

6 comments posted 22yrs

posted by rstoertz

6 comments posted 22yrs posted by rstoertz

rust preventitive needed..

.. anybody know of a good coating to put into a cast iron waterjacket (pretty much like the water jacket in a gasoline e...

14 comments posted 22yrs

posted by tim-kirkland

14 comments posted 22yrs posted by tim-kirkland

Sphere rolling off ellipse

Hi, I am researching the problem of determining mathematically when a sphere rolling down a slope of elliptical cross-s...

4 comments posted 22yrs

posted by Brad.Cooper_17

4 comments posted 22yrs posted by Brad.Cooper_17

FEA textbook source code

I have "A First Course in the Finite Element Method" by Daryl L. Logan. I currently have the 2nd edition. The source co...

1 comments posted 22yrs

posted by rddlog

1 comments posted 22yrs posted by rddlog

Need Ideas On How To Close A Water Tap At 1.5 N.m Torque

Hi All, I'm working on designing an automatic machine / tester that will open and close a water tap for about 200,000 c...

16 comments posted 22yrs

posted by mbhullar

16 comments posted 22yrs posted by mbhullar

Plain bearing desine

I need to find information on the design of plain bearings, as used on engine crankshafts. I want look at changing two...

1 comments posted 22yrs

posted by jbarnes

1 comments posted 22yrs posted by jbarnes