The essay analyses the nonlinear vibration of an annular thin plate. 本文分析研究了环形薄圆板的非线性振动问题。
The forced vibration problems of a turboshaft engine, which is mounted directly on the main gear box, were investigated. 摘要涡轴发动机的一种常见的安装方式是其主安装节直接与主减速器相连，对这种安装形式下涡轴发动机的受迫振动问题进行了研究。
