To draw velocity diagram of four bar mechanism.
The dimensions and configuration of the four bar mechanism, shown in Figure, are as follows:
P1A = 300 mm; P2B = 360 mm; AB = 360mm, and P1P2 = 600 mm. The angle AP1P2= 60°. The crank P 1A has an angular velocity of 10 rad/s and an angular acceleration of 30 rad/s 2, both clockwise. Determine the angular velocities of P2B, and AB and the velocity of the joint B.
PSolution:Given:ωAP1= 10 rad/s; α AP1= 30 rad/s 2; P1A = 300 mm = 0.3 m ; P2B = AB=360 mm = 0.36 m. We know that the velocity of A with respect to P 1or velocity of A, V AP1= V A= ω AP1 × P 1A = 10 × 0.3 = 3 m/s.
Velocity Diagram:
The velocity diagram of four bar mechanism was drawn and analysed.
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