A governor is said to be isochronous when range of speed is zero for all radii of rotation of the balls within the working range, neglecting friction.

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When the radius of rotation of balls ______________ as the equilibrium speed increases, the governor is said to be unstable.

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In a governor, if the equilibrium speed is constant for all radii of rotation of balls, the governor is said to be

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For a porter governor, Each arm has a length of 250mm and pivoted on the axis of rotation. Sleeves carry a mass of 25kg and each ball’s mass is 5Kg. Radius of rotation: 150mm at the beginning of lift and 200mm at the maximum speed of governor. Find range in speed neglecting friction in rpm.

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When the speed of the engine fluctuates continuously above and below the mean speed, the governor is said to be

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A Porter governor has equal arms each of length 250 mm and pivoted on the axis of rotation. Each ball has a mass of 5 kg and the central load has a mass on the sleeve of 25 kg. The radius of rotation of the ball is 150 mm when the governor begins to lift and 200 mm when the governor is at maximum speed. Neglecting friction at the sleeve, find the governor effort.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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A Porter governor has equal arms each of length 250 mm and pivoted on the axis of rotation. Each ball has a mass of 5 kg and the central load has a mass on the sleeve of 25 kg. The radius of rotation of the ball is 150 mm when the governor begins to lift and 200 mm when the governor is at maximum speed. Neglecting friction at the sleeve, find the sleeve lift.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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A Porter governor has equal arms each of length 250 mm and pivoted on the axis of rotation. Each ball has a mass of 5 kg and the central load has a mass on the sleeve of 25 kg. The radius of rotation of the ball is 150 mm when the governor begins to lift and 200 mm when the governor is at maximum speed. Neglecting friction at the sleeve, find the power of the governor in N-m.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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A Porter governor can not be isochronous.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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A governor is said to be stable, if the

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For isochronous Hartnell governor

asked Sep 23, 2022 in Machine Dynamics by Grayson (34.3k points)

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A governor is said to be isochronous when the equilibrium speed is

asked Sep 23, 2022 in Machine Dynamics by Grayson (34.3k points)

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A Porter governor has equal arms each of length 250 mm and pivoted on the axis of rotation. Each ball has a mass of 5 kg and the central load has a mass on the sleeve of 25 kg. The radius of rotation of the ball is 150 mm when the governor begins to lift and 200 mm when the governor is at maximum speed. Considering friction at the sleeve of 10N, find the range of speed in rpm.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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A spring controlled governor is said to be isochronous when the controlling force

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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A Porter governor has equal arms each of length 250 mm and pivoted on the axis of rotation. Each ball has a mass of 5 kg and the central load has a mass on the sleeve of 25 kg. The radius of rotation of the ball is 150 mm when the governor begins to lift and 200 mm when the governor is at maximum speed. Considering friction at the sleeve of 10N, find the power of the governor in N-m

asked Sep 23, 2022 in Machine Dynamics by Grayson (34.3k points)

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A Porter governor has equal arms each of length 250 mm and pivoted on the axis of rotation. Each ball has a mass of 5 kg and the central load has a mass on the sleeve of 25 kg. The radius of rotation of the ball is 150 mm when the governor begins to lift and 200 mm when the governor is at maximum speed. Considering friction at the sleeve of 10N, find the governor effort.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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How should the equilibrium speed vary with the increase of radius of rotation of the governor balls for stability?

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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In a spring controlled governor, when the controlling force _____________ as the radius of rotation increases, it is said to be a stable governor.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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A Proell governor has equal arms of length 300 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 80 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 100 kg. Determine the range of speed of the governor.

asked Jan 29, 2022 in Farm Machinery by Olivia (38.9k points)

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It is possible that the equilibrium speed of the governor decreases with an increase of the radius of rotation of balls.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when

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A very sensitive governor will cause hunting.

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Sensitiveness of the governor is defined as the ratio of the

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A spring controlled governor is said to be unstable, if the relation between the controlling force (Fc) and radius of rotation(r) is Fc = ar

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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Let r represent the radius of rotation, then for an isochronous spring controlled governor, which of the following relation regarding controlling force is true? (a,b are constants)

asked Sep 23, 2022 in Machine Dynamics by Grayson (34.3k points)

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