Through spectrum analysis, time-marching analysis and radom vibration analysis, the seismic performance of arch bridge under one-dimension and multi-dimension excitation has been analyzed.
采用反应谱法，时程分析方法以及随机振动方法分析了拱桥在一维和多维地震激励下的地震响应。
The vibrating spectrum analysis was done to centrifugal multi-level impeller blower, and found that the impeller has dynamic unbalance, so that the vibration of blower is to exceed the standard.
对离心式多级叶轮风机进行振动频谱分析，认为叶轮存在动不平衡，造成风机振动超标。
In this paper, the multi-event and the rare case of response spectrum on clean Xihuang Monastery tower are introduced into the seismic analysis.
本文采用多遇和罕遇反应谱对西黄寺清净化成塔进行了抗震分析。
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