2. The large diameter and face of the disk of a multiple disk clutch are 255 mm and 25 mm respectively. The helical compression spring used to engage the clutch has 9 ½ effective coils of 10 mm steel wire. The outer coil diameter is 80 mm. The free length of the spring is 185 mm. When in place with clutch engaged, its length is 130 mm. Assuming that there are 10 pairs of friction surface in contact, that the motor runs at 1200 rpm, with coefficient of friction on contact surface f= 0.15. Let the spring modulus of elasticity be 80GN/m?. Determine the axial force available for the clutch. a. 1688 kN c. 1458 kN b. 1534 kN d. 1258 kN

2. The large diameter and face of the disk of a multiple disk clutch are 255 mm and 25 mm respectively. The helical compression spring used to engage the clutch has 9 ½ effective coils of 10 mm steel wire. The outer coil diameter is 80 mm. The free length of the spring is 185 mm. When in place with clutch engaged, its length is 130 mm. Assuming that there are 10 pairs of friction surface in contact, that the motor runs at 1200 rpm, with coefficient of friction on contact surface f= 0.15. Let the spring modulus of elasticity be 80GN/m?. Determine the axial force available for the clutch. a. 1688 kN c. 1458 kN b. 1534 kN d. 1258 kN

Name: 42. The large diameter and face of the disk of amultiple disk clutch
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Description: 42. The large diameter and face of the disk of amultiple disk clutch are 255 mm and 25 mmrespectively. The helical compression springused to engage the clutch has 9 ½ effectivecoils of 10 mm steel wire. The outer coildiameter is 80 mm. The free leng

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 7.57P: The square-threaded screw with a pitch of 10 mm and a mean radius of 18 mm drives a gear that has a...

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