Question

KEl6. Figure shows a mechanism. Body 5 is assumed to be homogeneous circular cylinder, and mass of the pulley 4 is uniformly distributed over its rim. The coefficient of sliding friction between bodies and the plane is f 0.1. The coefficient of stiffness of a spring is e. A force Fapplied to the mechanism depends on the displacement si of the body 1. The mechanism starts motion from rest, and at the beginning of the motion the spring is unstretched. During the motion the constant moment of resistance M is acting on the pulley 3. Find the angular velocity on of the pulley 3 at the instant when si -0.2 m Parameters: R 0.3 m,s-0.1 m, and radius of gyration p 0.2 m, R4-0.2 m, m 7 kg, kg, 5 kg, M 60。

Find the angular velocity w3 at instant s1=0.2m

Answer 1

mso k 30 FBD-4 F32 ns イ Fss 32. 30 132-

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