【摘要】 本文提出了一种求解直串系统固有频率和主振型的新方法——动窗法。通过不断移动黑箱窗口把一个多自由度系统化为多个单自由度系统。该方法物理概念明确,简单易行。它不单可用来计算和Holzer同类的问题,而且更有意义的是提供了把一个多自由度系统化为多个单自由度系统的思路。更多还原

【Abstract】 This paper introduces a new method -moving window method-bywhich the natural frequencies and normal modes of a series system can be obtained.By moving the window of black box continually, a multi-degree system can be changed into multiply systems with one degree of freedom. The physical concept of the method is definite.The method is simple and practicable.Not only can it be used to solve such problems as Holzer problem, but also, what is more important, it develops an idea that a multi-degree system can be changed into multiply systems with one degree of freedom.更多还原