复合材料发动机的模态试验与分析

A MODAL EXPERIMENT AND ANALYSIS ON COMPOSITE MATERIAL ENGINE BLOCK

本文介绍了某复合材料发动机的试验模态分析方法,并应用计算机模态分析系统获得了其前5阶模态参数及振型,为其结构的改进设计提供了依据。

This paper introduces the modal experiment and the analysis method on composite material engine block,and obtains the first 5-stage modal parameters as well as the modal vibration shapes by means of computers. It lays down a solid foundation for the structure design and improvemnt of the composite engine block.