The free vibration of rectangular plates is studied in this paper,with the two opposite edges of the plates simply supported,and the other two edges symmetrically point-supported.

• 本文研究两对边简支、另两对边多个对称点支矩形板的横向自由振动问题,将点支矩形板的自由振动视为支点反力作用下的强迫振动,得到了用支点反力表示的矩形板自由振动的振型函数;