By modal participation factor, the influence of higher modes is quantified.
通过结构振型参与系数量化了各个结构的高阶振型的影响。
The 3d earthquake induced pipeline system vibration modes, the amplitudes of displacement and rotation responds, as well as the modal participation factor were calculated.
计算出了由三维地震激发的管系模态、管系位移、转角响应幅值以及地震激发的管系模态响应系数。
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