最后自动组成空间刚体自由振动微分方程的系数阵，并计算出刚体的自振频率和振型。
Therefore, the differential equations 'coefficient matrix of the free vibration of the spatial rigid body is automatically formed, and free vibration frequency and its type can also be found out.
为了选取大跨屋盖结构脉动风振响应的主导振型，提出了振型能量参与系数及其累积参与系数的计算方法。
The mode energy participation factor and the cumulated factor are presented in order to identify the dominant modes of fluctuating wind-induced response for a large-span roof.
根据试验结果，提出合理的振型、基频建议公式和加速度分布系数建议图形及大圆筒结构适用范围。
Proposals for formulas of mode of vibration and frequency, figures for distribution of acceleration coefficient and scope of application are rationally suggested.
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