+1 vote
in Machine Dynamics by (34.3k points)
If the crank and the connecting rod are 600 mm and 2 m long respectively and the crank rotates at a constant speed of 250 r.p.m, determine maximum velocity of the piston in m/s is _____

(a) 15

(b) 17.5

(c) 20

(d) 10.5

The question was posed to me in final exam.

The above asked question is from Angular Velocity and Acceleration of the Connecting Rod in division Inertia Forces in Reciprocating Parts of Machine Dynamics

1 Answer

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by (38.6k points)
Right option is (b) 17.5

Explanation: maximum velocity is given by V=w.r( sinθ + sin2θ/2n)

Maximum velocity occurs at 75, n = 2/.6 = 3.33

substituting values gives Vmax = 17.5 m/s.

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