In the respect of pseudo dynamic test, the author explained the influencing factors of initial inputting stiffness matrix and the equivalent method of mass matrix of model.
在拟动力试验方面，指出了联机试验中初始刚度矩阵的影响因素，建立了模型质量矩阵的等效方法。
The design method of a flywheel with variable equivalent mass moment of inertial is presented in this paper.
提出了一种变等效转动惯量飞轮的设计方法。
A measured method of equivalent mass to drum of winding system was introduced in this paper, and established some functions of calculating equivalent mass to drum.
介绍了提升系统变位质量的实测方法，建立了变位质量计算公式。
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