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In a slider crank mechanism, the crank rotates with a constant angular velocity of 300 rpm, Length of crank is 150mm, and the length of the connecting rod is 600mm. Determine acceleration of the midpoint of the connecting rod in m/s2. Crank angle = 45° from IDC.

In a slider crank mechanism, the crank rotates with a constant angular velocity of 300 rpm, Length of crank is 150mm, and the length of the connecting rod is 600mm. Determine acceleration of the midpoint of the connecting rod in m/s2. Crank angle = 45° from IDC. Correct Answer 117

Let the Intersection point of crank and connecting rod be termed as ‘x’ velocity of x = ωxL(crank) = 4.713 m/s We draw a corresponding velocity diagram for the same, where this velocity is perpendicular to the crank, this diagram when drawn to scale turns out to be a triangle. From the reference point we can measure the velocity of midpoint of connecting rod V = 4.1 m/s From the acceleration diagram of the same , we find that acceleration of midpoint of the connecting rod comes out to be 117m/s2.

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