...；振型分解 [gap=1310]neering; earthquake ground motion; standard deviation spectra; response spectra; mode decomposition ...
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Therefore, based on the hypothesis that the upper structure in interaction system has classical modal, a modal analysis methodology was presented in this paper.
为此，本文基于上部结构具有正交振型的假设，采用振型分解法对耦联方程进行解耦。
参考来源 - 桩—土—上部结构动力相互作用简化分析方法研究In chapter four, equivalent viscous damp and equivalent stiffness are obtained by using equivalent linearized method ; in this base, mode decomposition method of elasto-plastic stochastic seismic response of steel frame is presented in this paper.
本文的第四章运用等效线性化方法得到了结构的等效阻尼及等效刚度,在此基础上提出了钢框架弹塑性随机地震反应分析的随机振型分解法。
参考来源 - 钢框架弹塑性地震反应及动力可靠性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
减震结构的分析方法之一是振型分解反应谱法。
The response spectrum modal analysis is one of the methods used for analyzing damper-added structures.
对模型进行在弹性范围内的振型分解反应谱分析。
Using spectra method, the structure is analyzed within the range of elastic response.
采用悬臂梁振型分解反应谱法研究重力坝地震响应。
The mode-superposition response spectrum method of cantilever is used to study the seismic response of gravity dam.
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