A multiplate disc clutch transmits 75 kW of power at 2000 rpm. Coefficient of friction for the friction surfaces is 0.2. Axial intensity of pressure is not to exceed 180 kN/m?. Internal radius is 100 mm and is 0.8 times the external radius. Find the number of plates needed to transmit the required torque. Assume uniform wear conditions.

A multiplate disc clutch transmits 75 kW of power at 2000 rpm. Coefficient of friction for the friction surfaces is 0.2. Axial intensity of pressure is not to exceed 180 kN/m?. Internal radius is 100 mm and is 0.8 times the external radius. Find the number of plates needed to transmit the required torque. Assume uniform wear conditions.

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

See similar textbooks

Similar questions

A soft cone clutch has a cone pitch angle of 10°, mean diameter of 300 mm and a face width of 100 mm. If the coefficient of friction is 0.2 and has an average pressure of 0.07 N/mm2 for a speed of 500 rpm, find : (a) the force required to engage the clutch; and (b) the power that can be transmitted. Assume uniform wear. [Ans. 1470 N ; 10.4 kW]
A cone clutch has an angle of 12 dgrees and coefficient of friction of 0.42. Find the axial forcerequired if the capacity of the clutch is 8 KW at 500 rpm. The mean diameter of the active conicalsections is 300 mm. Use uniform wear method.
...A plate clutch with single driving plate with contact surfaces on each is required to transmit 35 kW at 2400 rpm. Given that μ = 0.29, R = 1.25r, Pmax = 0.2 MPa, determine the inside radius of the frictional surface in mm. Assume the uniform wear conditions.
A friction clutch is to transmit 8kW at 2600 rpm. It is to be a single plate type with both sides of the plate effective, the axial pressure being limited to 0.09 N/mm2. The coefficient of friction is 0.3. If the external diameter of the friction lining is 1.4 times the internal diameter. By assuming uniform wear conditions analyze all the given parameters to determine the required dimensions of the friction lining
A disc clutch is required yo transmit 5 kW at 2000 rpm with coefficient of friction 0.25 and bore radius of friction lining is 25 mm. Assuming constant pressure 1 MPa. Calculate the outside radius of the clutch.
A single disc clutch is used to transmit 12kW power at 1000rpm. The axial pressure is limited to 0.08 N/mm2. If the external diameter of the friction lining is 1.25 times the internal diameter, find the required dimensions of the friction lining. Assume uniform wear conditions. The coefficient of friction may be taken as 0.3.
A multi-plate clutch must transmit 11 kW of power without slipping at 1500 rev/min. The coefficient of friction is 0.3. The inner and outer radis are 30 and 85 mm respectively. The axial force applied to the plates is 780 N. Determine the number of plates required using.
A cone clutch has cone elements at an angle of 12o. The clutch transmit 25 HP at a speed of 1200 rpm. The mean diameter of the conical friction section is 16 in and the coefficient of friction is 0.35. Find the axial force needed to engage the clutch.
A multiplate disc clutch consist of a branz plate to transmit 10 kw at 1000 rpm di= 90 mm do= 160 mm friction coefficient =0.18 and the pressure is 0.3. find the number of contact surfaces.
A local utility vehicle production company have considered using in one of its design a multi-disc clutch consisting of a 9 steel disc and 8-bronze discs with effective outside and inside diameter of 220mm and 160mm, respectively. If the shaft turns at 150rpm and an axial force of 600N is applied, find the horsepower capacity, considering a coefficient of friction of 0.25
A conical clutch has an included angle of 120°, a coefficient of friction of 0.4, and outer and inner diameters of 85mm and 18mm respectively. Using both the uniform wear theory and the uniform pressure theory, calculate the force required to press the two halves together if it is to transmit 300W at 750rev/min. The uniform wear theory and the uniform pressure theory deliver different values for torque in the same system. Which theory would be preferred in practice for use in calculations involving a friction clutch? Give reasons for your choice.
A multidisk clutch is required to have a torque capacity of 300 N.m. Due to space limitations, the inner and outer diameters are specified to be 62 mm and 128 mm respectively. The coefficient of friction is 0.30 and the limiting pressure for the friction material is 900 Pa. Find the minimum number disks using uniform-wear model. Please be clear on your solution!