Q2/ The out - of- balance of a machine rotor is equivalent to 5 kg at 10 mm radius in one plane A, together with an equal mass at 15 mm radius in a second plane B. AB = 375 mm and the two radii are 120°. Find the mass required in third plane C at a radius of 125 mm and its angular position with respect to the given radii so that there is no resultant out- of- balance force. Find also the position of C along the axis for the residual couple to be a minimum and of this couple when the speed is 500 r.p.m.
Q2/ The out - of- balance of a machine rotor is equivalent to 5 kg at 10 mm radius in one plane A, together with an equal mass at 15 mm radius in a second plane B. AB = 375 mm and the two radii are 120°. Find the mass required in third plane C at a radius of 125 mm and its angular position with respect to the given radii so that there is no resultant out- of- balance force. Find also the position of C along the axis for the residual couple to be a minimum and of this couple when the speed is 500 r.p.m.
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 4.129P: The uniform 240-lb bar AB is held in the position shown by the cable AC. Compute the tension in the...
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![Q2/ The out – of - balance of a machine rotor is equivalent to 5 kg at 10 mm radius in one plane A,
together with an equal mass at 15 mm radius in a second plane B. AB = 375 mm and the two radii are
120°. Find the mass required in third plane C at a radius of 125 mm and its angular position with
respect to the given radii so that there is no resultant out - of - balance force. Find also the position of
C along the axis for the residual couple to be a minimum and of this couple when the speed is
500 г.p.m.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F812bb759-aa59-446d-90cd-24fc22fe1b4d%2Fb0a768eb-9b93-4f70-9102-9e2e359810d0%2Fjmvw0rw_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q2/ The out – of - balance of a machine rotor is equivalent to 5 kg at 10 mm radius in one plane A,
together with an equal mass at 15 mm radius in a second plane B. AB = 375 mm and the two radii are
120°. Find the mass required in third plane C at a radius of 125 mm and its angular position with
respect to the given radii so that there is no resultant out - of - balance force. Find also the position of
C along the axis for the residual couple to be a minimum and of this couple when the speed is
500 г.p.m.
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