A multi-disc friction clutch has to be designed to transmit 75 kW from an engine running at 2000 r.p.m. Assuming that the pressure distribution is uniform and limited to 150 kPa, and that the inner and outer diameters of the lining are 100 mm and 150 mm respectively. Take μ = 0.25. After manufacture this clutch is used to transmit the power from the engine to a rotor which has a mass of 1150 kg and a radius of gyration of 200 mm. Determine: The time required for this rotor to reach 1500 rpm from standstill. Assume the clutch is transmitting maximum torque.
A multi-disc friction clutch has to be designed to transmit 75 kW from an engine running at 2000 r.p.m. Assuming that the pressure distribution is uniform and limited to 150 kPa, and that the inner and outer diameters of the lining are 100 mm and 150 mm respectively. Take μ = 0.25. After manufacture this clutch is used to transmit the power from the engine to a rotor which has a mass of 1150 kg and a radius of gyration of 200 mm. Determine: The time required for this rotor to reach 1500 rpm from standstill. Assume the clutch is transmitting maximum torque.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
A multi-disc friction clutch has to be designed to transmit 75 kW from an engine running
at 2000 r.p.m. Assuming that the pressure distribution is uniform and limited to 150 kPa,
and that the inner and outer diameters of the lining are 100 mm and 150 mm
respectively. Take μ = 0.25. After manufacture this clutch is used to transmit the power
from the engine to a rotor which has a mass of 1150 kg and a radius of gyration of 200
mm.
Determine:
The time required for this rotor to reach 1500 rpm from standstill. Assume the
clutch is transmitting maximum torque.
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