Velocity Diagram Of Slider Crank Mechanism. The crank oa is moving with uniform angular velocity ω radians second in the counter clockwise direction. The angle between the connecting rod and the horizontal axis is designated φ which we use in subsequent calculations.
The slider reciprocates along the line of stroke ao. Crank mechanism the slider crank mechanism is a simple four bar mechanism in which the rocker is replaced by aslider. We now construct a velocity diagram for the crank mechanism below based on a crank angle θ 50.
We can write the velocity vector equation for point b as.
The slider reciprocates along the line of stroke ao. Ab is the coupler joining a and b. The velocity diagram has three components. Vb is known in magnitude and direction.