a) find the lead angle (should be 5.82)

b) determine if it is self-locking or not (it is)

c) What is the moment that must be applied to the screw to loosen the clamp?

d) If the moment is applied by a force couple at points A and B, what is the magnitude of the force needed?
 

Transcribed Image Text:

A C-clamp is used to apply a load of 3.5 kN to a board. The coefficient of static friction for the screw is μ = 0.29 and the screw has a mean diameter of 2.5 cm and a lead of 0.8 cm. 3.5 kN 3.5 kN A. 4 cm 4 cm B A C-clamp is used to apply a load of 3.5 kN to a board. The coefficient of static friction for the screw is μ = 0.29 and the screw has a mean diameter of 2.5 cm and a lead of 0.8 cm. 3.5 kN 3.5 kN A. 4 cm 4 cm B

Answer rating: 100% (QA)

To address the questions well go through each part step by step a Finding the lead angle The lead angle phi of a screw is the angle between the helix ... View the full answer