活塞式发动机轴系的耦合振动

本文指出了发动机曲轴系统的一些耦合振动的基本事实，简述了研究耦合振动的各种模型及各耦合参数的确定方法，给出了曲柄在载荷作用下的变形分析结果及三个实际轴系的扭振引起的轴向振动的计算与实测结果对比。作者还指出，己往孤立地研究曲轴轴系的扭转．轴向和横向三种振动法揭示某些实际振动现象，因此以耦合的观点来研究轴系振动是必要的．

Coupled Vibration of Crankshaft System in Piston Engine

Some facts on coupled torsional, axial and lateral vibrations, which were treated separately as being independent of one another in the past in practical solutious, are pointed out. Models and parameters concerned with coupled vibrations are presented. Deflections of crank under different loads are discussed and comparisons between calculated and measured results of axial response due to torsional vibration of three shaftings are given in the paper. After the invesitigation and analysis on the problem, the authors express their view on what has been actually done and what is yet to be done in this field in the future.