Q5/ The upper arms of a Porter governor are pivoted on the axis of rotation and the lower arms are pivoted to the sleeve at a distance of 40 mm from the axis of rotation. The length of each arm is 350 mm and the weight of each ball is 50 N. If the equilibrium speed is 240 rpm, when the radius of rotation is 200 mm, find the weight of the sleeve. If the friction is equivalent to a force of 50 N at the sleeve.

Q5/ The upper arms of a Porter governor are pivoted on the axis of rotation and the lower arms are pivoted to the sleeve at a distance of 40 mm from the axis of rotation. The length of each arm is 350 mm and the weight of each ball is 50 N. If the equilibrium speed is 240 rpm, when the radius of rotation is 200 mm, find the weight of the sleeve. If the friction is equivalent to a force of 50 N at the sleeve.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.170RP: The 320-lb homogeneous spool is placed on the inclined surface. Determine the vertical force P that...

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5. The arms of a Porter governor are 300 mm long. The upper arms are pivoted on the axis of rotation and the lower arms are attached to the sleeve at a distance of 35 mm from the axis of rotation. The load on the sleeve is 54 kg and the mass of each ball is 7 kg. Determine the equilibrium speed when the radius of the balls is 225 mm. What will be the range of speed for this position, if the frictional resistances to the motion of the sleeve are equivalent to a force of 30 N? [Ans. 174.3 r.p.m. ; 8.5 r.p.m.]
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