Letter 32083

Surface finish vs. friction  

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Dear sir,

Currently my work is going on high performance hydraulic lift.

Sir now I reach up to final stage of my project. Sir, I was stuck at one problem.

That, how to relate surface roughness with friction occure? what is the procedure to select Surface roughness Value?

It's a pin joint, material= steel

Nilesh Deshmukh
Mahindra & Mahindra Ltd. - Mumbai, Maharashtra, India

For this problem please refer to the moody´s charts and illustration ,there you can find that moody has related the surface roughness and the friction for both fluid and solid motion, i think it can help you out , please refer to Fluid Mechanics Book Edition fifth, author Massey.

Anything else dont hesitate asking

Shehzad Saleem Khan
GKSS Research Centre - Geesthact, Hamburg, Germany

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