The braking mechanism consists of two pinned arms and a
Chapter 8, Problem 8-78(choose chapter or problem)
The braking mechanism consists of two pinned arms and a square-threaded screw with left- and right-hand threads. Thus when turned, the screw draws the two arms together. If the lead of the screw is 4 mm, the mean diameter 12 mm, and the coefficient of static friction is \(\mu_s = 0.35\), determine the tension in the screw when a torque of \(5\ N \cdot m\) is applied to tighten the screw. If the coefficient of static friction between the brake pads A and B and the circular shaft is \(\mu_s’ = 0.5\), determine the maximum torque M the brake can resist.
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