摘要
证明多自由度振动系统主振型的节点定理,给出定理成立的一个充分条件.该定理揭示振型元素符号变化的规律.
The node theorem of natural modes for vibrational systems with multi-degree-of-freedom has been proved, and a condition to draw the conclusion has been given in this paper .The theorem describes the regular variation of plus minus symbol of elements in natural mode vectors
关键词
多自由度
振动系统
主振型
节点定理
vibrational system with multi-degree-of-freedom , natural mode , node theorem
