Module 1. Introduction to Theory of Machine
Module 2. Planar Mechanism
Module 3. Velocity and Acceleration Analysis
Q1:- The coefficient of friction between belt and pulley is 0.39; angle of lap is 150°. The belt runs over pulley of diameter 500 mm at 150 rpm. Calculate power transmitted if maximum tension in the belt is 3000 N.
D = 500mm = 0.5m
N = 150rpm
We know that velocity of Belt
Power = (T1 – T2) V= (3000- 1367.3)3.925=6408.3 W = 6.40 KW
Q2:- The belt in 90mm wide and 10mm thick having density of1000kg/m3. The coefficient of friction between belt and pulley is 0.3. The maximum stress in the belt is 5mPa, Calculate maximum power the belt can transmit, if angle of lap is 120°.
Sol:- We know that maximum tension in Belt
T = t.b.t. = 5 X 106 X 0.09 X .01
Mass of belt per meter length