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在弹性机构动力分析中，首次引入以往用于刚体运动学的机构尺寸型概念，推导出机构固有频率与机构尺寸型之间的内在关系，在此基础上，运用两种弹性动力分析方法对４０余种平面四连杆机构典型尺寸型进行了分析，通过比较两种方法得到的动态应力和位移响应，推荐了两种方法的分界点。
In the dynamic analysis of elastic mechanism, the concept of mechanism size used in rigid body kinematics was introduced for the first time, and the inherent relationship between mechanism natural frequency and mechanism size was derived. Based on this, two elastic dynamic methods The typical dimensions of four kinds of planar four-bar linkage mechanism are analyzed. By comparing the dynamic stress and displacement response obtained by the two methods, the demarcation point of the two methods is recommended.