摘要
提出边界元法分析域内具有支承和集中质量的薄板自由振动问题的简便方法。这是一种处理边界元域内积分项的方法,使得该问题在利用其对应齐次方程的基本解的基础上,将域内积分化为边界积分来处理,节省了工作量。计算实例结果表明,该方法的精度满足实际工程的要求。
A simple and convenient method is presented, which can deal with free vibration of thin plates with internal supports or concentrated masses. This is boundary element method which deal with internal integral terms. Based on the foundamental solution of the corresponding complate equation, this method can make the internal to integral to become the bounary integral. Some examples are calculated and the results indicate that the method presented here has better precision in actual engineering.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1993年第4期379-384,共6页
Journal of University of Science and Technology Beijing
关键词
边界元法
自由振动
薄板
固有频率
boundary element method, free vibration, self-excited vibration frequency, mode shape
