用单自由度模型代替多自由度模型的条件——凸轮机构的主振响应

The Condition for the Model of Simple-Degree-of -Freedom Substituting the Model with Multi-Degree- of - Freedom----Primary Response of Cam Mechanisms----

本文对于运用单自由度摸型代替多自由度模型计算凸轮机构主振响应的问题进行了探计。首次提出了允许以单自由度模型等效替代的条件及其判别式。同时，对于当前文献中提出的各种建立单自由度模型的方法进行了此较并得出了相应的结论。本文提出的新论点对于指导实践是很有意义的。

This article researches the calculating problems of primary response of cam mechanisms, with the model of simple-degree-of-freedom takes the place of the model with multi-degree-of-freedom, and sugguests firstly the permiting condition and its discriminants for substitute. Moreover, the writer has compared the different methods of creating the model of simple-degree-of-freedom in the present references, and ubtained the relative conclusions. The new arguments set forth in the article is more effective for guiding practice.