多分支轴系扭振计算的动态子结构方法

The Dynamic Substructuring Method for Torsional Vibration Calculation of Multi-Branched Shafting Systems

本文给出了一种部件模态综合法,并运用该方法对多分支轴系统扭转振动进行了分析和计算。这种方法是Hurty提出的固定界面法和Hou提出的自由界面法的改进。算例表明,这种动态子结构方法对多分支轴系扭转振动的计算不仅是有效的,而且具有物理概念明确、节省计算时间等优点,是多分支轴系振动计算的有效途径。

This paper gives a kind of component mode synthesis' methods. It is an improvement of the fixed-interface method presented by Hurty W. C. and free-interface method presented by Hou Shou-nien. The examples show that this kind of dynamic substructuring methods is not only effective for torsional vibration's calculation of multi-branched shafting systems,but also has some other advantages such as the clearness of physical concepts, reduction of calculation time, etc. This method is an effective approach to vibration calculation of multi-branched shafting systems.