In a manual transmission system of one of the cars you are responsible for reworking, the clutch is engaged to transmit torque from the engine to the gearbox. If the engine generates a maximum torque of 350 Nm and the coefficient of friction between the clutch plates is 0.3, determine the minimum force required to engage the clutch. Clutch radius y-=0.58

In a manual transmission system of one of the cars you are responsible for reworking, the clutch is engaged to transmit torque from the engine to the gearbox. If the engine generates a maximum torque of 350 Nm and the coefficient of friction between the clutch plates is 0.3, determine the minimum force required to engage the clutch. Clutch radius y-=0.58

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 7.58P: The screw of the carjack has a pitch of 0.1 in. and a mean radius of 0.175 in. Note that the ends of...

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The screw of the carjack has a pitch of 0.1 in. and a mean radius of 0.175 in. Note that the ends of the screw are threaded in opposite directions (right- and left-handed threads). The coefficient of static friction between the threads is 0.08. Calculate the torque C0 that must be applied to the screw in order to start the 1200-1b load moving (a) upward; and (b) downward.
The square-threaded screw with a pitch of 10 mm and a mean radius of 18 mm drives a gear that has a mean radius of 75 mm. The static and kinetic coefficients of friction between the gear and the screw are 0.12 and 0.06, respectively. The input torque applied to the screw is C0=10Nm. Assuming constant speed operation, determine the output torque C1 acting on the gear.
2. An engine developing 45 kW at 1000 rpm is fitted with a cone clutch built inside the flywheel. The cone has a face angle of 12.5° and a maximum mean diameter of 500 mm. The coefficient of friction is 0.2. The normal pressure on the clutch face is not to exceed 0.1 N/mm2. Determine: a. the face width required, and b. the axial spring force necessary to engage the clutch.
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Question 3 An engine of a 2 ton truck develop 30 kW at 600 rpm. The truck is fitted with a cone clutch to increase torque. The cone clutch has an outer diameter of 500 mm and inner diameter of 300 mm. the cone has a face angle of 12.5° and a width of 45 mm. The coefficient of friction of 0.25 and normal pressure on the clutch face is not to exceed 0.1 N/mm? 3.1. Sketch the cone clutch and indicate all dimensions and forces. 3.2. Calculate the axial thrust. 3.3. Calculate axial spring force to engage. 3.4. Derteimine the wear. 3.5. Find torque.
Machine Elements
THE ENGINE OF AN AUTOMOBILE IS RATED TO GIVE SOKWAT 200 RPM WÍTH A MAXIMUM TORQUE OF 600 N-M. DESIGN A DRY SINGLE-PLATE CLUTCH ASSUMING THE OUTER RADIUS OF THE FRICTION PLATE TO BE 1.2 TIMES THE INNER RADIUS. THE COEFFICIENT OF FRICTION IS 0.25 AND THE INTENSITY OF PRESSURE BETWEEN THE PLATES IS NOT TO EXCEED 80 KN/M2. SIX SPRINGS ARE USED TO PROVIDE AXIAL FORCE NECESSARY TO ENGAGE THE CLUTCH AND EACH SPRING HAS A STIFFNESS OF 50 N/MM. FIND THE INITLAL COMPRESSION IN THE SPRINGS AND DIMENSIONS OF THE FRICTION PLATE.
The disc clutch has a pair of mating friction surfaces, with an outer diameter of 350 mm and an inner diameter of 250 mm. The average value of the coefficient of friction is 0.25, and the operating force is 5 kN. Find the torque capacity when the clutch is new, the maximum pressure and the torque capacity after a sufficiently long operating period.
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A cone clutch with a cone angle of 12° transmits 53 kW at 1300 rpm. The coefficient of friction of linings is 0.16. Determine the axial spring force necessary to engage the clutch in N if the mean diameter of the active conical sections is 250 mm.
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