random vibration

A New Algorithm for Sine on Random Vibration Test Based on Multirate Spectrum Estimation

基于多分辨谱分析的正弦加随机振动试验控制算法的研究

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Finite element analysis of random vibration responses for multilayer shell structure applied with combined temperature and vibration environment

温振复合载荷作用下多层壳结构随机振动响应有限元分析

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Based on random vibration theory, the along wind structural response formulae are derived.

基于结构随机振动理论, 可导出顺风向风振时各类风响应.

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The random vibration method is often used to measure the tension forces in the cables.

随机激励频率法是检测斜拉索张力的有效方法.

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The Research of Reliability of Random Vibration in Package System

包装系统随机振动可靠性的研究

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Second, linear models can not even make with reasonable explains and right qualitative analysis for the essence nonlinear phenomena, So it is very necessary to study the nonlinear random vibration systems.

二是对于某些本质非线性现象，线性模型甚至无法作出合理的解释和正确的定性判断，因此对有些工程实际的动力学问题应该处理为非线性随机模型来加以研究。

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The paper discusses the problems in the inception, verification and application of the ′ calculation of transverse vibration of train bridge ( train track) time varying system and the theory of energy random analysis for train derailment ′.

针对目前广为关注的车桥（轨）耦合振动系统横向振动计算与列车脱轨能量随机分析理论，从理论及试验的角度，探讨了该方法在提出、验证、应用方面存在的一些问题。

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Through coupling of interaction forces between vehicle, track and bridge, equations of motion of the spatial coupled vibration of the vehicle-track-bridge system are deduced. The spatial random vibration responses of vehicle, track and bridge are obtained by employing the novel explicit integration algorithm.

通过车辆、轨道和桥梁之间相互作用力的耦合，建立了车辆-轨道-桥梁系统空间耦合振动的运动方程，并通过新型显示积分方法进行求解，得到车辆、轨道和桥梁的空间随机振动响应。

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The means of realization for overloading random vibration test was studied.

研究了过载随机振动试验的实现手段.

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Damage Criterion and Fatigue Calculation of Packaging System under Random Vibration

包装系统在随机振动下的破坏准则与疲劳计算

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Aimed at the two types of high speed railway long span steel bridge-slab truss composite system and arch truss composite system, an analysis of random vibration response of time dependant train bridge system has been made in detail.

本文针对高速铁路大跨度钢桥板桁或拱桁组合体系两种主要桥式，对列车与桥梁时变系统的随机振动响应作了较详细的分析。

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This paper analysed the causes of inaccuracy fire rockets from helicopter. The principal causes are the random imperfections of rockets ( thrust misalignment*) and the random vibration of the launcher/ rockets sysrem.

本文分析了直升机发射火箭精度低的主要原因在于火箭本身随机缺陷（推力偏心等）和火箭/发射器系统随机扰动引起弹道散布大。

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It is important for random vibration analysis of the inclined isolator system.

这对随机激励下斜置隔振系统的振动分析有重要的指导作用.

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A novel method for the random vibration analysis of geometrically nonlinear structures is proposed in this thesis. In addition, the method applied to the analyses of a mini Tension Leg Platform ( TLP) and a seabed suspended span pipeline.

论文围绕这一课题，建立了柔性结构非线性随机振动响应分析方法，并将其应用于深海柔性张力腿平台结构和海底悬跨管道的随机振动分析中。

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Random Vibration Test of Aircraft Suspension Equipment

飞机悬挂装置随机振动试验技术

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Random Vibration Analysis of Tip/ Tilt Mirror in a Space Telescope Correlation Tracking System

某空间望远镜相关跟踪系统摆镜随机振动分析

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The random vibration analysis of stochastic antenna structures under wind excitation is studied in this paper.

研究随机天线结构的风激随机振动响应问题.

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Fundamental Problems in Calculation of Transverse Vibration of Train-bridge and Train-track Time-varying System and Theory of Energy Random Analysis for Train Derailment

车桥及车轨时变系统横向振动计算中的根本问题与列车脱轨能量随机分析理论

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Random vibration analysis of arch dam in consideration of radiation damping

考虑辐射阻尼的拱坝随机振动分析

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Considering the geometrical nonlinearity, a new method for the nonlinear random vibration of flexible Tension Leg Platform ( TLP) is presented in this paper.

考虑深海柔性张力腿平台的几何非线性特征，建立柔性平台结构非线性随机振动响应分析方法。

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Fatigue Failure Analysis of Structures under Random Vibration Environment

随机振动环境下结构的疲劳失效分析

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Finally, three types of seismic response analysis methods considering multi-component multi-support seismic effects are compared. The three methods are spectrum analysis method, time history analysis method and random vibration analysis method.

最后比较了大跨度结构考虑多维多点输入的抗震计算方法，包括反应谱法、时程分析法以及随机振动分析法。

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The exciting source for random transverse vibration analysis of high-speed train and bridge ( track) time-variant system is confirmed.

解决了高速列车-桥梁（轨道）时变系统横向振动随机分析的激振源问题；

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Analytical method in frequency domain for a long-span roof structures are based on random vibration theory.

主要论述大型屋盖结构的风振响应机理,并从理论上概括了其分析方法.

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Through analyzing random vibration, we obtained the response power spectrum of converter cabinet and also used power spectrum density method to analyze vibration fatigue life of the converter cabinet.

通过随机振动分析获得变流器柜的响应功率谱，采用功率谱密度函数法分析变流器柜振动疲劳寿命。

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The results showed that suitable vertical and lateral damping coefficient can significantly reduce train random vibration responses and improve train stability.

研究表明，当车钩采用适当的横向和垂向减振系数时，可明显减小列车的随机振动响应，提高列车的运行平稳性。

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Covariance Analysis Method for Vehicle Random Vibration

车辆随机振动的协方差分析方法

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The statistic characters, analytic method and traditional experiment of a random vibration were introduced firstly.

作者首先对随机振动的统计特性 、 分析方法和控制实验作了简单介绍.

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According to the production reality of oilfield, 9 kinds of load situations are set up to simulate the mechanics action. After that, it calculates the wind vibration coefficients and pulsating equivalent wind-load at four parts of derrick by theory of structure random vibration.

根据油田生产实际，建立了9种模拟井架结构力学行为的载荷工况，运用结构随机振动理论计算了四段井架结构的风振系数和等效脉动风载荷。

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Computer& Simulation Test Software Package for Motorcycle Random vibration

摩托车随机振动计算机模拟试验软件包

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