A Proell governor has equal arms of length 320 mm. The upper and lower ends of the arms are pivoted on the axis of the governor. The extension arms of the lower links are each 50 mm long and parallel to the axis when the radii of rotation of the balls are 150 mm and 200 mm. The mass of each ball is 10 kg and the mass of the central load is 80 kg. Determine the range of speed of the governor.

A Proell governor has equal arms of length 320 mm. The upper and lower ends of the arms are pivoted on the axis of the governor. The extension arms of the lower links are each 50 mm long and parallel to the axis when the radii of rotation of the balls are 150 mm and 200 mm. The mass of each ball is 10 kg and the mass of the central load is 80 kg. Determine the range of speed of the governor.

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 7.48P: Find the smallest distance d for which the hook will remain at rest when acted on by the force P....

See similar textbooks

Similar questions

Find the smallest distance d for which the hook will remain at rest when acted on by the force P. Neglect the weight of the hook, and assume that the vertical wall is frictionless.
The arms of a Porter governor are equal in length and pivot on the axis of rotation. The mass of each ball is 10 kg and the mass of the central load is 25 kg. The ball rotates at radius 210 mm when the governor is at its lowest setting and 260 mm when it is at its maximum setting. At maximum speed, the vertical distance from the center of the sleeve to the pivot was 500 mm. For another case, it can be seen that the height of the governor will reduce to half values when the ball masses are replaced by three-time larger from the first case. The friction force for both cases is 10 N. Find arms length LDetermine the range of speed in first casewhat will be the final range of speedAs a result of extracting the speed range values in both cases, what did you conclude?
Each arm of a Proell governor is 240 mm long and each 240 h = 190 rotating ball has a mass of 3 kg. The central load acting on the sleeve is 30 kg. The pivots of all the arms are 30 mm from the axis of rotation. The vertical height of the T. Tcos e governor is 190 mm. The extension links of the lower arms are vertical and the governor speed is 180 rpm when the sleeve is in the mid-position. Determine the lengths of the extension links (e) and tension in the upper 3 kg 240 B arms (T). 30 30 kg
Each arm of aporter govern or is 250 mm long The uppe r and ower arms are pivoted at 40mm and 50 mm respectively from axis of rota tion Each ball has mas s Df 5 kg and the sleeve mass is 50kg The friction force on the sleve is 40 N. Determine the range of the speed of governor for extreme radii of rota tion of 125 mm and 150 mm
Each arm of a Porter governor is 300 mm long and is pivoted on the axis of rotation. Each ball has a mass of 6 kg and the sleeve weighs 18 kg. The radius of rotation of the ball is 200 mm when the governor begins to lift and 250 mm when the speed is maximum. Determine the maximum and the minimum speeds and the range of speed of the governor.
Q. The upper and lower arms of Porter governor are 0.25 m each and are pivoted 30 mm from the axis of rotation. The radius of rotation Is 130 mm. The mass of the ball and sleeve are 3 kg and 38 kg respectively. Find the effort and power of the governor.
The arms of a Porter governor are each 250 mm long and pivoted on the governor axis. The mass of each ball is 5 kg and the mass of the central sleeve is 30 kg. The radius of rotation of the balls is 150 mm when the sleeve begins to rise and reaches to certain radius at maximum speed. The governor has radius that is 175 mm at mid position. The speed range of the governor is 38 rpm, and the increment in speeds is constant in the three positions. Find : (1) the friction of the load which existed at the sleeve, and (2) the governor radius at maximum speed. The friction is ignore in mid position only.
a) The length of the arms of a Porter governor is 300mm long. The upper and lower 10 arms are pivoted to links at 50mm and 60mm, respectively, from the axis of the rotation. The mass of each ball is 5kg and the sleeve is of mass 60kg. The frictional force on the sleeve is 35 N.Determine speed range for extreme radii of rotation of 120mm and 150mm.
a. Each arm of a Porter governor is 200 mm long and is hinged at a distance of 40 mm from the axis of rotation. The mass of each ball is 1.5 kg and of the sleeve 25 kg. When the links are at 30° to the vertical, the sleeve begins to rise at 260 rpm. Assuming that the friction force is constant, find the maximum and minimum speeds of rotation when the inclination of the arms to the vertical is 45°. b. The four arms of a porter governor is 250 mm long. The upper and lower arms are pivoted to links 40 mm and 50 mm respectively from the axis of rotation. Each ball has a mass of 5 kg and the sleeve mass is 50 kg. The force of friction on the sleeve of the mechanism is 40 N. Determine the range of speed of the governor for extreme radii of rotation of 125 mm and 150 mm. Consider the force diagrams attached.
a porter governor has two balls each of mass 3 Kg and a central load of mass 15 Kg. The arms are all 200 mm long, pivoted on the axis. If the maximum and minimum radii of rotation of the balls are 160 mm and 120 mm respectively find the range of speed
Each spring of a Pickering governor of a gramophone is 8mm wide and 0.15 mm thick with a length of 50 mm. A mass of 50 g is attached to each leaf spring at the centre. The distance between the spindle axis and the centre of mass when the governor is at rest is 10 mm. The ratio of the governor speed to the turntable speed is 15. Determine the speed of the turntable for a sleeve lift of 0.5 mm. Take E = 200 GPa.
Each spring of a Pickering governor of a gramophone is 8mm wide and 0.15 mm thick with a length of 50 mm. A mass of 50 g is attached to each leaf spring at the centre. The distance between the spindle axis and the centre of mass when the governor is at rest is 10 mm. The ratio of the governor speed to the turntable speed is 15. Determine the speed of the turntable for a sleeve lift of 0.5 mm. Take E = 200 GPa. Select one: A. 57 rpm B. 37 rpm C. 47 rpm D. 77 rpm Clear my choice ◄ BSC105C Pre-recordedLecture Topic11 v1.2