Question

Explain the method of balancing of different masses revolving in the same plane. (b) a shaft carries four masses a, b, c and d of magnitude 200 kg, 300 kg, 400 kg and 200 kg respectively and revolving at radii 80 mm, 70 mm, 60 mm and 80 mm in planes measured from a at 300 mm, 400 mm and 700 mm. the angles between the cranks measured anticlockwise are a to b 45°, b to c 70° and c to d 120°. the balancing masses are to be placed in planes x and y. the distance between the planes a and x is 100 mm, between x and y is 400 mm and between y and d is 200 mm. if the balancing masses revolve at a radius of 100 mm, find their magnitudes and angular positions.

Answer 1

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