Through the equation, free response can be gotten from random response.
然后利用此方程序，由结构的随机响应信号得到自由响应信号。
Secondly pseudo excitation approach is employed to analyse random response.
其次用虚拟激励法进行层间隔震结构的随机响应分析。
This paper presents some method of the shock and random response spectrum analysis.
本文提出了一些对冲击以及随机响应谱进行分析的方法。
The random response of a simplified model of a platform was then calculated by this method.
用本法计算了一个简化的平台模型的随机响应。
The problems of stationary random response analysis of stochastic truss structures are studied in this paper.
研究了随机桁架结构的平稳随机响应问题。
The random response computation of structures under multiple-support excitations is a problem of time consumption.
多点地震动作用下结构随机地震反应的计算十分耗费时问。
The paper studies digital processing methods which identify structural modal parameters from structural random response.
本文研究在未知激振力情况下，由结构随机响应识别结构模态参数的数字处理方法。
Finally, autocorrelation function of the fuzzy random response are discussed by means of expectation of interference force.
最后由干扰力的期望讨论了模糊随机响应的自相关函数。
The method of the paper can be used to random response analysis and optimization design of the structure with base isolation.
本文方法也可用于基础隔震结构和无损伤“加层减震”加固结构的随机地震响应分析与优化设计。
The identification of modal parameters of a vibration system by means of random response and free response signal is discussed.
本文讨论利用振动系统的随机响应和自由响应信号识别系统模态参数问题。
It has solved the random response of nonlinear stochastic vibration system that caused by the stochastic hysteretic loop itself.
从而解决了由滞回环本身的随机性引起的非线性振动系统的随机响应问题。
This paper may serve as the basis of the general theory of dynamic fuzzy random response analysis (including fuzzy random vibration).
本文的理论为进一步建立动态模糊随机响应分析(包括模糊随机振动)的一般理论奠定了基础。
The seismic ground motion is assumed to be double filtered white noise, and pseudo excitation approach is employed to calculate the random response.
采用双过滤白噪声功率谱模型描述地震动，并用林家浩虚拟激励法进行随机响应分析。
This paper describes the pulsating analysis technique for identifying the dynamic parameters of a 15-story building from its random response signals.
用脉动法由某15层百货大楼的随机响应信号中识别其动力学参数。
The relations of different random response variables are analyzed and Monte Carlo simulations for viscoelastic stochastic structures are investigated.
尽管粘弹性本构关系具有时间相依性，其随机摄动格式并不存在“长期项”的影响。
This paper investigates the problems of using the dynamic characteristics and measured random response of the structure to design the dynamic absorber.
本文研究利用结构的动力特性和实测的随机响应数据，设计动力吸振器的问题。
Finally, the method of solving instantaneous acceleration power spectrum of nonstationary random response of arbitrarily point on vehicle is presented.
最后给出如何求解车辆上任一固定点非平稳随机响应的瞬时加速度功率谱。
In the second part, the stationary and non-stationary random response analyses of structures subjected to multiple seismic excitations are investigated.
第二部分结合自然科学基金资助课题“非平稳多源激励随机响应”，对复杂结构多点随机地震响应问题进行了系统的研究。
In this paper, a new method of calculating random response spectral moments of elastic-viscoelastic combined systems under random excitations is presented.
提出了一种新的计算弹性-粘弹性复合结构随机响应的各阶谱矩的计算方法，它是一种时域复模态分析方法。
The power spectral density function of earthquake motion is usually used for the random response analysis of engineering structures in the frequency domain.
工程结构的随机地震反应分析，常在频域中用到地震动的功率谱密度函数。
The direct modal perturbation based on selecting point by number-theoretic method is proposed to find the random response of un-damping linear random structures.
针对于多自由度线性复合随机结构的随机自振特性分析，提出了基于数论选点的直接模态摄动法。
Comparisons with digital simulation show that the method is superior to other approximate methods which have been applied to random response of hysteretic systems.
解析结果与数字模拟结果比较表明，该方法优于迄今为止用于双线性迟滞系统随机响应分析的其他近似方法。
A complete set of calculating methods for complex modal analysis of nonlinear random response of structures with multi-degrees of freedom and base isolation are proposed.
从而建立了多自由度隔震结构非线性随机响应复模态分析的一整套计算方法。
The component randomness is considered. The SFEM is introduced in the iterative formulas of EFEM under cyclic loading to obtain the random response of local stress and strain.
考虑零构件的随机因素，将随机有限元方法引入到交变载荷下弹塑性有限元的迭代格式中，得到局部应力应变的随机响应，为低周疲劳可靠性分析提供了更精确的依据。
The vibration of flying missile head is a subject of random vibration mainly. Calculating the random response is a major work of missile head structure and environment analysis.
弹头在飞行过程中的振动主要是随机振动，计算随机激励下弹头的响应是弹头结构强度和环境分析的重要任务之一。
This paper introduces an advanced random response model in sensitive question, and uses Bayesian methods in valuing the parameter, and finally obtains the parameter approximation.
文章介绍了一种改进的敏感性问题随机化回答模型，并把贝叶斯方法用于该模型的参数估计，最后得出了参数的近似解。
The nonstationary random response of elastic circular arch under horizontal seismic excitation was studied by the method combining the pseudo-excitation algorithm with Galerkin algorithm.
应用虚拟激励法与伽辽金法相结合，分析弹性圆拱在非平稳水平随机地震作用下的随机响应问题。
By simulating the fuzzy random interference as a random process with a fuzzy parameter, the fuzzy random response of vibration systems of the random interference with fuzziness are analysed.
将模糊随机干扰模拟为含模糊参数的随机过程，分析了模糊随机干扰下的振动系统的模糊随机响应。
The random response method for soil-structure interaction system is studied systematically at this dissertation, and the Suggestions and treating methods about the practice application are proposed.
本文详细地研究了土与结构相互作用体系随机地震反应分析方法，并对该方法的实际应用中的一些问题提出了作者的一些见解和处理方法。
The random response method for soil-structure interaction system is studied systematically at this dissertation, and the Suggestions and treating methods about the practice application are proposed.
本文详细地研究了土与结构相互作用体系随机地震反应分析方法，并对该方法的实际应用中的一些问题提出了作者的一些见解和处理方法。
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