The floating caliper brake used in the front car wheel is shownin the following figures. The caliper supports a single floatingpiston actuated by hydraulic pressure. Two annular pads, ri=100 mm,ro=140mm, subtend an angle of 110°, have a coefficient of frictionof 0.4, and are actuated by a pair of hydraulic cylinders 40mm indiameter. The torque requirement is 1350 N.m. For uniform wear (a)Find the largest normal pressure pa. (b) Estimate the actuatingforce F. (c) Find the equivalent radius re and force location r.(d) Estimate the required hydraulic pressure.
