基于能量泛函的开口矩形板自由振动特性分析

李凯1,何书韬1,吴国民1，毛艺达2,李天匀2

The free vibration characteristics analysis of rectangular plate with central opening using energy functional method

LI Kai1 HE Shu-tao1 WU Guo-min1 MAO Yi-da2 LI Tian-yun2

振动与冲击 . 2017, (11): 161 -165 .