The arms of a Hartnell governor are of equal length. At the mid-position of the sleeve, the ball arm is vertical and the radius at which the ball rotates is 10 cm when the equilibrium speed is 400 RPM. On changing the speed by 1% the governor can overcome the friction at this position. The friction force is assumed to have a constant value of 20 N at the sleeve. The sleeve moves ± 1.5 cm from the mean position. The minimum speed of the governor including friction is 450 rpm. The mass of the sleeve is 3.5 kg. Calculate the magnitude of rotating masses and
The arms of a Hartnell governor are of equal length. At the mid-position of the sleeve, the ball arm is vertical and the radius at which the ball rotates is 10 cm when the equilibrium speed is 400 RPM. On changing the speed by 1% the governor can overcome the friction at this position. The friction force is assumed to have a constant value of 20 N at the sleeve. The sleeve moves ± 1.5 cm from the mean position. The minimum speed of the governor including friction is 450 rpm. The mass of the sleeve is 3.5 kg. Calculate the magnitude of rotating masses and
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
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Question
The arms of a
Hartnell governor are of equal length. At the mid-position of the sleeve, the ball arm is
vertical and the radius at which the ball rotates is 10 cm when the equilibrium speed is 400
RPM. On changing the speed by 1% the governor can overcome the friction at this position.
The friction force is assumed to have a constant value of 20 N at the sleeve. The sleeve moves
± 1.5 cm from the mean position. The minimum speed of the governor including friction is
450 rpm. The mass of the sleeve is 3.5 kg. Calculate the magnitude of rotating masses and
initial compression of the spring.
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