Question: The connecting rod is attached to the piston by a pin at B of diameter d1 and to the crank shaft by a bearing A

The connecting rod is attached to the piston by a pin at B of diameter d1 and to the crank shaft by a bearing A of diameter d2. If the piston is moving upwards, and the coefficient of static friction at these points is μs, determine the radius of the friction circle at each connection.

Given:

d1 = 20 mm

d2 = 50 mm

μ s = 0.3

The connecting rod is friction circle at each connection

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