The essay analyses the nonlinear vibration of an annular thin plate. 本文分析研究了環形薄圓板的非線性振動問題。
The forced vibration problems of a turboshaft engine, which is mounted directly on the main gear box, were investigated. 摘要渦軸發動機的一種常見的安裝方式是其主安裝節直接與主減速器相連,對這種安裝形式下渦軸發動機的受迫振動問題進行了研究。