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研究往复运动件变惯量下的曲轴系自由扭振特性。
Considering the variable inertia of the reciprocating parts, free torsional vibration characteristics of crankshaft are studied.
首先建立了推进轴系的扭振模型，并进行了扭振特性计算。
Firstly the torsional vibration model of the propulsion shafting was built up and its performance parameter was calculated.
该方法能明显地改善轴系的扭振特性，可用于多种内燃机减振器的优化设计工作。
The method greatly improves the characteristics of torsional vibration of shafting and can be used in optimum design for several engines.
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