Effect of inertia variation due to reciprocating parts and connecting rod on coupled free vibration of crankshaft
- Indian Inst. of Science, Bangalore (India). Dept. of Mechanical Engineering
The inertia due to reciprocating parts and connected rods, as felt by the crankshaft, varies with the crank angle. The effect of inertia variation on torsional free vibration of crankshafts has been studied extensively. In this paper, the effect on combined torsional and bending free vibrations is examined. Single-cylinder engine crankshaft geometry is considered for the study. The results indicate that the inertial coupling, introduced by the reciprocating parts and connected rod, significantly influences the free vibration characteristics, particularly when the natural frequencies of the crankshaft are closely spaced. The results suggest that, under such conditions, modeling the crankshaft as a pure torsional system would involve considerable error.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 483743
- Journal Information:
- Journal of Engineering for Gas Turbines and Power, Vol. 119, Issue 1; Other Information: PBD: Jan 1997
- Country of Publication:
- United States
- Language:
- English
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