Question
Consider a reciprocating engine with crank radius R and connecting rod of length L. The secondary unbalance force for this case is equivalent to primary unbalance force due to a virtual crank of__________
Options :
radius L²/4R rotating at half the engine speed
radius R/4 rotating at half the engine speed
radius R²/4L rotating at twice the engine speed
radius L/2rotating at twice the engine speed
Answer :
radius R/4 rotating at half the engine speed
Solution :
The correct option is A radius R2/4L rotating at twice the engine speed
Consider a reciprocating engine with a crank radius R and connecting rod of length L. The secondary unbalance force for this case is equivalent to primary unbalance force to a virtual crank of radius R2/4L rotating at twice the engine speed.
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