Two pulleys rotating in opposite direction has the following properties: D1 = 430 mm, D2 = 180 mm, and 2.0 meters apart. A belt with density of 980 kg/m3 and a design stress of 2MPa is used. Large pulley rotates at a speed of 520 rpm. The maximum tension must be 0.8 kN, and the coefficient of friction for belt and pulley is 0.25. Calculate the following: a. Length of the belt. b. Angle of contact for smaller pulley in degrees. c. Power capacity of the motor.

Two pulleys rotating in opposite direction has the following properties: D1 = 430 mm, D2 = 180 mm, and 2.0 meters apart. A belt with density of 980 kg/m3 and a design stress of 2MPa is used. Large pulley rotates at a speed of 520 rpm. The maximum tension must be 0.8 kN, and the coefficient of friction for belt and pulley is 0.25. Calculate the following: a. Length of the belt. b. Angle of contact for smaller pulley in degrees. c. Power capacity of the motor.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.8.12P: A bungee jumper having a mass of 55 kg leaps from a bridge, braking her fall with a long elastic...

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