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随机风振     
相关语句
  random wind vibration
     A complex mode method to aualyse the random wind vibration response of the structure
     结构随机风振响应分析的复模态法
短句来源
     Second-Order Random Wind Vibration Response Analysis of Steel Braced Frame Structures in Highrise Buildings
     高层钢框架-支撑结构二阶随机风振响应分析
短句来源
     In this paper, analyses of second_order random wind vibration response for steel braced frame structures in highrise buildings are carried out.
     对高层钢框架 -支撑结构二阶随机风振响应进行了分析 .
短句来源
     The analysis result of random wind vibration response of the modified structure shows that the wind resistibility of structure has been obviously improved.
     改进后的结构的随机风振响应分析结果表明结构的抗风能力得到明显提高。
短句来源
     The paper studies the random wind vibration response of the structure.
     对单自由度结构的随机风振响应问题进行了研究。
短句来源
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  wind-induced random response
     In this paper, based on the random process model of fluctuating wind foers,the maximum inential force of wind-induced random response of a stucture is determined and theprobability distribution of random gust response factor is obtained first.
     本文首先考虑脉动风力的随机过程性,确定了脉动风力作用下结构随机风振效应的最大惯性力,导出了随机风振系数的概率分布函数;
短句来源
  random wind-induced
     Analytic solution to random wind-induced response of structures with TLD
     带TLD结构随机风振响应的解析解
短句来源
     Analytic solution to random wind-induced response of structures with TLD
     带TLD构随机风振响应的解析解
短句来源
     Complex model methods for analysis of response of structures with TLD to random wind-induced vibration
     带TLD控制结构随机风振响应分析的复模态法
短句来源
     The random wind-induced response of structures with foundation rotation and multi-degree of freedom is studied systematicaly.
     对多自由度基础转动结构随机风振响应问题进行了系统研究。
短句来源
     In this paper, the stationary and non-stationary random wind-induced response, dynamic reliability and optimization under the dynamic reliability constraint of structures with foundation rotation and tall building with TMD or TLD is studied systematically. Three achievements are gained. 1. According to the situation that Davenport wind spectrum is irrational fraction, theequivalent wind spectrum is generated by linear filtered process.
     本文对基础转动结构、带TMD或TLD结构的高层建筑和高耸结构的平稳与非平稳随机风振响应、动力可靠性分析以及基于动力可靠性约束的优化设计方法进行了系统的研究,取得了以下成果:1、针对Davenport脉动风谱为非有理分式风谱,通过线性滤波过程和三参数拟合,生成了与Davenport风谱等效的脉动风谱。
短句来源
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  “随机风振”译为未确定词的双语例句
     THE COMPLEX MODE THEORY OF THE RANDOM WIND-INDUCE RESPONSE ANALYSIS OF STRUCTURES WITH FOUNDATION ROTATION
     基础转动结构随机风振响应分析的复模态法
短句来源
     Study on the Random Control of Tall Buildings with TMD and Energy Absorbers under Wind Loading
     在TMD和耗能器联合工作情况下高层建筑的随机风振控制研究
短句来源
     Random Vibration Analyses of Nonlinearity Whip Antenna Structures with Uncertain Parameters
     随机参数非线性鞭天线结构的随机风振响应分析
短句来源
     Model Control for Fuzzy Random Vibration Responses of Highrise Structures under Wind Loads
     高耸结构模糊随机风振反应的振型控制
短句来源
     The Control of Fatigue Life of the Guyed Mast Structure Under the Wind Load
     随机风振下桅杆结构的疲劳寿命控制
短句来源
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In this paper, the effect of spatial correlations of wind-excited random vibration is studied and the corresponding formulas for towers and tall buildings are presented. Also, the formulation of the conversion factor has been developed for design purposes and for revision of the code on design loading. Thus, if the calculated value by random vibration analysis without considering the spatial correlations is multplied by this conversion factor, the result will be identical to that obtained by considering the...

In this paper, the effect of spatial correlations of wind-excited random vibration is studied and the corresponding formulas for towers and tall buildings are presented. Also, the formulation of the conversion factor has been developed for design purposes and for revision of the code on design loading. Thus, if the calculated value by random vibration analysis without considering the spatial correlations is multplied by this conversion factor, the result will be identical to that obtained by considering the spatial correlations. Furthermore, on the basis of three experimental data for different configurations and vibration modes of structures, this paper has worked out the numerical values of conversion factor which can be used for design purposes and the reference in revision of the code on design loading.

本文研究随机风振空间相关性的影响,导出了针对高耸高层结构考虑空间相关性的风振计算有关公式。为了便于应用及规范修订,导出折算系数有关公式,按目前常用的未考虑空间相关性的计算结果乘以此折算系数,即为考虑空间相关性的结果.本文对各种试验资料、结构物外形等进行了分析和比较,得出了结论,可供实际应用和规范修订时参考。

Most of structures are possessed of nonlinear characteristic. Reinforced concrete structure is a kind of nonlinear structures and only possessed of a short part of linear characteristic Even though steel structure is possessed of a long part of linear characteristic, It also gets into nonlinear characteristic while its stress isbeyond elastic limit. Most of papers pay attention to structures whose risingcharacteristic line is the same as descending characteristic line. However, for struc-tures which rising characteristic...

Most of structures are possessed of nonlinear characteristic. Reinforced concrete structure is a kind of nonlinear structures and only possessed of a short part of linear characteristic Even though steel structure is possessed of a long part of linear characteristic, It also gets into nonlinear characteristic while its stress isbeyond elastic limit. Most of papers pay attention to structures whose risingcharacteristic line is the same as descending characteristic line. However, for struc-tures which rising characteristic line is different from descending characteristicline, random vibration is only studied by a few papeps, such as [1], and wind-excited random vibration is only discussed in the end of a few papers, such as[2,3]. On this account, it is significant to study the analysis of wind-excitedndom vibration for nonlinear structures. In this paper, the formulas of equivalent linearization for nonlinear structuresunder fluctuating wind loading are studied and the formulas of gust loading factorhe been presented. For design purposes, this paper has worked out tables which can be readily used to calculate the gust-loading factor for nonlinear structures.To illustrate the application of method presented, an example will be dealt with.For comparison, the results given on the base of Chinese spectra and Davenport'spectra are also presented here. It is seen that the result based on Chinese spec-tra is less than those based on Davenport's spectra in WoT~2≤0.60.

实际工程结构处于非线性情况是很多的。钢筋混凝土结构由于混凝土的非线性性质,因而实际上应属于非线性结构的一种类型,即使对于均质的钢结构,当应力超过弹性极限后,也属于非线性问题。对于随机非线性振动的研究,目前大多数集中在上升和下降特性曲线都相同的非线性结构上。对于风激起随机非线性结构的响应,国际上还研究得很少,在国内还未开始研究,因而研究非线性结构随机风振问题,有着十分重大的理论意义和实用意义。本文针对工程结构中物理非线性的特点,上升和下降曲线并不相同,根据等效线性化原理,导出了具体的等效线性公式,根据作者曾提出的风振响应的表达式,针对非线性风振的特殊性提出了具体计算方法,可用图表进行计算。计算中对国际上应用很广的Davenport的风速谱和我国最新统计的风速谱对计算结果的影响进行了比较,在常用范围内我国风速谱计算结果较小,因而对采用谱的问题上要引起我们的注意。

This paper presents the general design method for model control of fuzzy random vibratien responses of highrise structures under wind Ioads.In the paper,some problemes unsol- ved in the research for wind vibration control of structures are solved.These are: (1)the filter of generalized fluctuating wind forces for the mode shapes is established. (2)the fuzzy properties of real fluctuating wind are considered.(3)the calculating- formulas of passive control and the achieving way of active control for wind vibr-...

This paper presents the general design method for model control of fuzzy random vibratien responses of highrise structures under wind Ioads.In the paper,some problemes unsol- ved in the research for wind vibration control of structures are solved.These are: (1)the filter of generalized fluctuating wind forces for the mode shapes is established. (2)the fuzzy properties of real fluctuating wind are considered.(3)the calculating- formulas of passive control and the achieving way of active control for wind vibr- ation responses are presented.(4)it is determined that reliability of the structural vib- ration responses under wind loads is the criterion examining the effects for wind vibra- tion control.

本文应用最优控制理论提出了高耸结构模糊随机风振反应振型控制的一般设计计算方法。文中解决了结构风振振型控制研究中几个尚未解决的问题。它们是:(1)建立了相应于各振型的广义脉动风力的成型滤波器;(2)在计入风干扰随机性的同时考虑了实际脉动风的模糊性;(3)提出了结构风振振型消极控制的计算公式和积极控制的实现途径;(4)确立了以结构风振反应可靠性为风振控制效果检验的准则。

 
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