The fixture clamp consists of a square-threaded screw having a coefficient of static friction s mean diameter d, and a lead h. The five points

The fixture clamp consists of a square-threaded screw having a coefficient of static friction μs mean diameter d, and a lead h. The five points indicated are pin connections. Determine the clamping force at the smooth blocks D and E when a torque M is applied to the handle of the screw.

Given:

μ s = 0.3 a = 30 mm

d = 3 mm b = 40 mm

h = 1 mm c = 40 mm

M = 0.08 N ∙ m β = 45 deg