四边简支球形扁壳的动力分析

Dynamic Analysis of a Spherical Surface Shallow Shell of Four Simply Supported Edges

本文分析了四边简支矩形球形扁壳的动力作用,求出了自振频率以及根据已知初挠度和初速度的任一瞬时挠度。文中还研究了强迫振动,求出了振动荷载作用下的振幅和内力。

In this paper,dynamic founction has been analysed for a rectangular floor spherical suriace shallow shell which has four simply supported edges.Based on known initial deflection and initial velocity,the deflection at any moment and free vibration frequency are calculated. Forced vibration has also been researched in the paper,amplitude of vibration and the stress- es under the founction of load fluctuation are calculated too