The weights move inwards and the springs bend as they rotate about the spindle axis with increasing speed.

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A Pickering governor is driving a gramophone. Each disc attached to the centre of a leaf spring has a mass of 20 g. The width of each spring is 5 mm and thickness of 0.125 mm. The effective length of each spring is 40 mm. The distance from the spindle axis to the centre of gravity of the mass when the governor is at rest, is 10 mm, find the speed of the turntable in rpm if ratio of the governor speed to the turntable speed is 10.5.

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

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A Pickering governor is driving a gramophone. Each disc attached to the centre of a leaf spring has a mass of 20 g. The width of each spring is 5 mm and thickness of 0.125 mm. The effective length of each spring is 40 mm. The distance from the spindle axis to the centre of gravity of the mass when the governor is at rest, is 10 mm. Find the speed of the governor in rpm when the sleeve has risen to a height of 0.8 mm. (E = 210kN/mm^2)

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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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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.

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

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In the given figure if the angle between OA and x-axis is made 90 degrees, the rotation speed will become 0. (the x – axis represents radius of rotation and the y axis represents the controlling force.)

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. 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. 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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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 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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For a more sensitive governor, the change in angle between OA and the x axis with change in radius of rotation should be? (the x – axis represents radius of rotation and the y axis represents the controlling force.)

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

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

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

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

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

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

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In the given figure, the straight line OA represents _________ (the x – axis represents radius of rotation and the y axis represents the controlling force.)

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

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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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