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。
The paper studies digital processing methods which identify structural modal parameters from structural random response.
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。
In the analysis of reliability of system under random excitations, the spectral moments of response are very important parameters.
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。
In this paper, a new method of calculating random response spectral moments of elastic-viscoelastic combined systems under random excitations is presented.
基于随机振动的离散分析理论，推导出白噪声激励下结构动力响应的递推公式。
Based on discrete random vibration theory, recurrence formulas are developed to calculate the dynamic response of structures under white noise excitations.
本文提出了大型抛物面天线结构风振响应分析的随机振动方法。
The random vibration method for the analysis of large parabolic antenna structure response to wind load is proposed in this paper.
算例研究表明，各种随机变量的变异对斜拉桥结构响应影响规律不同。
The results show that the variation of the stochastic variables has a different influence to the structural responses of cable-stayed Bridges.
在此基础上采用随机振动的离散分析理论，推导出结构响应均值和方差的递推式。
Based on discrete random vibration theory, recursive square equations to calculate the mean and standard deviation of response are developed.
本文给出拖拉机-拖车系统结构动力特性与随机振动响应分析的实用计算方法。
In this paper, the methods of dynamic characteristic and random vibration response analysis for the structure of tractor-trailer system are presented.
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。
This paper investigates the problems of using the dynamic characteristics and measured random response of the structure to design the dynamic absorber.
矩量方程清楚地反映出分别对应随机载荷和结构响应的两种不同统计特性的相互关系。
The moment equations clearly reflect the relation between two different kinds of statistical properties of the random loading and structure response respectively.
本文利用有限元方法，分析了平面刚架结构对地震载荷的随机动力响应问题。
Stochastic dynamic responses of planar rigid-frame structures to quake loads are investigated by using the finite element approach.
然后，引用正交展开法分析了随机结构的地震响应。
Then, the dynamic response of stochastic structures is calculated by orthogonal expansion method.
基于结构随机振动理论，可导出顺风向风振时各类风响应。
Based on random vibration theory, the along wind structural response formulae are derived.
文中研究了随机刚架结构的平稳随机响应问题。
The problems of stationary random responses of stochastic rigid structures are studied.
于是离散分析理论适用，推导出桅杆结构随机风振响应的递推公式。
Thus, discrete random vibration theory is applicable, and recurrence formulas to calculate dynamic response of guyed mast under stochastic wind load are deduced.
所提出的研究结果为爆炸地震效应的结构响应随机振源描述提供了理论基础。
The presented results may provide the theoretical fundamentals for the description of random excitations in predicating the dynamic responses of structures to explosion seism.
地震动是典型的非平稳随机过程，其非平稳特性对结构响应影响极大。
Earthquake motions are regarded as the typical non-stationary stochastic processes, and such non-stationary characteristics influence the structural response greatly.
对多自由度基础转动结构随机地震响应问题进行了系统研究。
In this paper, the random earthquake response of structure with rotary foundation and many degrees of freedom is studied systematically.
提出了随机结构响应密度演化分析的映射降维算法。
A mapping-based dimension-reduction algorithm for probability density evolution analysis of stochastic structural responses is 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。
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.
讨论了当把结构的形状参数考虑为随机变量时，平面结构静响应统计特性分析的随机边界元法。
This paper presents a probabilistic boundary element method for analysis of structural responses to static loads, when the shape parameters of structures are considered as random variables.
研究了8米口径智能天线结构在随机风荷作用下其保精度闭环控制随机响应问题。
The problems of guaranteed precision of random dynamic response of closed loop system of 8-meter intelligent caliber antenna under random wind excitation are studied.
模拟计算了施加于结构的随机风荷，并对结构的随机风振响应作了较深入的研究。
The effect of random wind load applied on the structure is simulated and calculated. And random wind vibration response of the structure is studied deeply.
研究了随机桁架结构的平稳随机响应问题。
The problems of stationary random response analysis of stochastic truss structures are studied in this paper.
提出了分析非线性随机结构响应的一种分段线性化方法。
In this paper, a subsection linearization method is developed and used in analyzing the dynamic response of nonlinear random structures.
本文分析研究了导管架平台结构在随机波浪作用下的动力响应问题。采用空间刚架单元建立有限元方程。
In this paper, the dynamic responses of jacket-type offshore platforms under random sea waves is studied, and the finite element of spatial frame is adopted.
非线性工程结构对随机载荷的动力响应分析是当前工程界十分关心的问题。
The analysis of dynamic repose by non-linear engineering structure to random load receives much condemn in the current engineering circle.
本文的分析方法对于处理其它弹性结构在其它平稳随机过程下的响应亦是适用的。
The analytical method in this paper is also suitable for other linear structures suffering various stationary random processes.
以镜架支撑安装基面上实测的地面振动速度功率谱密度为激励，运用ANSYS有限元分析软件的PSD分析模块，对该结构系统的随机振动响应进行了分析计算。
The PSD measured on the install base level of the mount as the excitation, the random vibration response of the mount was analyzed with the PSD module of ANSYS.
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 method of the paper can be used to random response analysis and optimization design of the structure with base isolation.
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