A compression spring is to be made from ASTM A227 steel wire, with a wire diameter of 8.0 mm, and is to operate under severe service conditions. The spring is to have an inside diameter of 34 mm, with squared and ground ends. It is to apply a force of 3.6 kN when at a length of 100 mm, and a force of12 kN when at a length of 140 mm. The number of active coils for this spring must be: O9.13 O 19.27 11.42 685 O 18.27 4.13 13.70 O 4.57

A compression spring is to be made from ASTM A227 steel wire, with a wire diameter of 8.0 mm, and is to operate under severe service conditions. The spring is to have an inside diameter of 34 mm, with squared and ground ends. It is to apply a force of 3.6 kN when at a length of 100 mm, and a force of12 kN when at a length of 140 mm. The number of active coils for this spring must be: O9.13 O 19.27 11.42 685 O 18.27 4.13 13.70 O 4.57

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.76P: The clutch described in Prob. 7.75 is to transmit a torque of 120lbft when the total spring force...

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