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/mm2)

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Governors topics include: Governors and its types, watt and porter governor, hartnell, hartung and pickering governors, stability of governors, power of governor and porter governor, controlling force, controlling force diagram for porter and spring-controlled governor. A machine governor is a device that regulates the speed of a machine, such as an engine. Governors can also be used to limit the top speed of vehicles and protect engines from damage due to excessive rotational speed.  Governors typically regulate engine speed by varying the rate at which fuel is supplied. Most governors use... Show more

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<sup>2</sup>)