摘要
本文利用三角形薄板广义协调元分析了开孔矩形薄板的振动，其优点是自由度少、精度高、程序简便。文中算例计算出了具有内方孔的四边简支、四边固定方板的前几阶频率系数，其结果与文献［５］的结果符合良好。
The vibration problem of rectangular thin plate with hole is analyzed with the theory of triangular generalized comforming element in the present paper. The advantages of the method are of less degrees of freedom, higher precision and easier to be programmed. In the paper, the frequency coefficients of simply supported and clamped square plate with a central square hole are given. The results are conformed with those in Reference.
出处
《工程力学》
EI
CSCD
北大核心
1998年第1期53-57,共5页
Engineering Mechanics
基金
煤炭部自然科学基金
关键词
频率系数
振动频率
广义协调元
开孔薄板
振动理论
generalized comforming element, thin plate with hole, vibration, frequency coefficent
