Question

R84 R110 Pins 21° 80 135° Hydraulic system Brake lining The Figure above shows an internal-expanding shoe brake system, actuated by a hy- draulic piston that exerts the force $P_a$ on each shoe. The identical shoes have a face width of 42mm. The lining material has a coefficient of friction of 0.34 and can take a maximum pressure of 1000k $P_a$. Determine (a) the allowable actuating force, (b) the braking torque capacity, and (c) the hinge-pin reactions.

          R84
R110
Pins
21°
80
135°
Hydraulic system
Brake lining
The Figure above shows an internal-expanding shoe brake system, actuated by a hy-
draulic piston that exerts the force $P_a$ on each shoe. The identical shoes have a face
width of 42mm. The lining material has a coefficient of friction of 0.34 and can take a
maximum pressure of 1000k $P_a$. Determine
(a) the allowable actuating force,
(b) the braking torque capacity, and
(c) the hinge-pin reactions.

R84
R110
Pins
21°
80
135°
Hydraulic system
Brake lining
The Figure above shows an internal-expanding shoe brake system, actuated by a hy-
draulic piston that exerts the force Pa on each shoe. The identical shoes have a face
width of 42mm. The lining material has a coefficient of friction of 0.34 and can take a
maximum pressure of 1000k Pa. Determine
(a) the allowable actuating force,
(b) the braking torque capacity, and
(c) the hinge-pin reactions.

Added by Teresa Y.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Hubert Agamasu

11/14/2021

Step 1

Given: - Coefficient of friction (μ) = 0.34 - Maximum pressure (Pmax) = 1000 kPa - Face width of each shoe (w) = 42mm The maximum force that can be exerted on each shoe is limited by the maximum pressure the lining material can take. The maximum force can be Show more…

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The Figure above shows an internal-expanding shoe brake system, actuated by a hydraulic piston that exerts the force Pa on each shoe. The identical shoes have a face width of 42mm. The lining material has a coefficient of friction of 0.34 and can take a maximum pressure of 1000 kPa. Determine: (a) the allowable actuating force, (b) the braking torque capacity, and (c) the hinge-pin reactions.