An effective shock response spectrum ( srs ) time - history waveform synthesis method was presented for simulating shock environment with electro - dynamic shakers 摘要为利用电动振动台进行模拟冲击环境试验，给出了一种时域冲击波形合成方法。
So far , however , the response spectrum method ( rsm ) adopted as the most important tool by the code is unable to deal with such problems 但目前设计规范采用的反应谱法不能处理这类问题。时程分析法因计算量很大，亦难在工程中得到普及。
The thesis also studies the rule of space grid structure ' s internal force under the effect of earthquake by the mode - superposition in response spectrum 通过采用振型分解反应谱法求解结构的地震反应，研究了空间网格结构在地震作用下的内力分布规律。
A method for analyzing 3d seismic dynamic reliability of gravity dam is presented based on first - passage theory , design point method and response spectrum method 摘要基于首次超越破坏机制的理论，在三维重力坝的地震动力可靠性分析方面作了有益的探索。
Analyzing the response under the wind power , it includes response frequency of the extended mode , shaking model of the extended modeu response spectrum of the extended model 、分析桥机在风载下的响应，这包括扩展模态的：响应频率、振型、响应谱。
For baise hydroelectric station , response spectrum of mode - superposition is applied in the dynamic analysis of intake tower . the rational conclusions are obtained 针对百色水利工程实际情况，采用了振型分解反应谱法对进水塔进行了动力分析，得出了合理的结论。
Sap2000 , a fea software , is used to conduct the finite element analysis of the structure , including static analysis , response spectrum analysis and time history analysis 用有限元分析程序sap2000对结构进行空间有限元静力分析、振型分解反应谱分析和时程分析。
How to consider the effects of soil layer construction and adjust the response spectra according as soil layer construction is an important subject in current site study 如何考虑场地土层结构对设计反应谱的影响，并合理的规定设计反应谱是当前场地研究中的重要课题之一。
Shock response signal curve fitting in the form of assembling the damped sin wavelets is researched to make the shock response spectrum ' s ( srs ) engineering application more concenient 摘要为便于冲击响应谱的工程应用，以正弦衰减基波组合的形式对冲击信号的拟合进行了研究。
3 . for three kinds of different soil layer construction , the characters of the platform values and the characteristic periods of ground surface acceleration response spectra were studied 3系统地研究了软夹层在底部、中部和顶部的三种土层结构的反应谱平台值和特征周期的主要特征。
