A simple reduced-order method for dynamic model is proposed on the basis of the aggregation method.
基于大系统理论中的集结法，提出了一种简便的动力学模型降阶处理方法。
Duiqi excessive discretionary space to be reduced in order to prevent its abuse and the expansion method.
对其过大的裁量空间予以缩减，以防止其滥用和扩张法。
A modal value analysis method is presented to obtain a reduced-order dynamic model with modal coordinates for structures with small damping or without damping.
针对小阻尼和无阻尼结构，提出了一种模态价值分析方法，用于在模态坐标下的动力学模型降阶问题。
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