关于线性振动系统模态叠加法的一个注记

详细信息

An annotation of modal superposition method of linear oscillation system

摘要: 针对用模态叠加法计算结构线性振动系统的响应，作模态截断的截尾模态阶数的取值，给出了能量范数形式的判断指标。用于小湾拱坝结构的动力分析表明，需取10阶以上的模态进行叠加。
- 线性振动系统模态叠加法模态截断能量范数拱坝
Abstract: By using the modal superposition method for the dynamic responses calculation of the linear oscillation system, a judging indictor in the energy norm form is given to determine the number of dominant modes on mode truncation. According to this judging indictor, 10 or more dominant modes are needed in the calculation of modal superposition for the Xiaowan Arch Dam.
- linear oscillation system,modal superposition method,mode truncation,energy norm,arch dam$$$$