Answer to Question #280637 in Mechanical Engineering for TEMMY

Question

The diameter of a brake drum is 30cm the pivot for the brake shoe and the point of application of the force actuating the shoe are 120mm each from the axis of rotation. Assume that the pressure distribution over the brake lining is equal to a single force acting radially and the coefficient of friction is 0.25. Calculate the braking torque exerted by an operating force of 900N on:

i. The leading shoe

ii. The trailing shoe

Answer 1

Answer with both diagrams is given below: