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.
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. Correct Answer 25
For minimum position, h1 = 200 mm N12= (m+M)/m x 895/h1 = 26850 rpm For maximum position, h2=150 mm N22 = (m+M)/m x 895/h2 = 35800 rpm Range = N2 – N1 = 25 rpm
মোঃ আরিফুল ইসলাম
Feb 20, 2025