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structural damping ratio
相关语句
  结构阻尼比
     Based on the establishment of the unified formulas for control of fluctuation wind induced vibration response of tall buildings with five kinds of passive dynamic absorbers (TMD, TLCD, LCVA, C TLD, R TLD), the unified computing formulas of equivalent structural damping ratio for the controlling effect of passive dynamic absorbers on fluctuation wind induced vibration response of tall building and the design method of optimum parameters for passive dynamic absorbers have been derived.
     本文在建立了五种被动的动力减振器 (TMD, TLCD, LCVA, C TLD, R TLD)对高层建筑结构脉动风振反应控制的统一方程的基础上,导出了被动动力减振器对高层建筑脉动风振反应控制效果的等效结构阻尼比的统一计算公式和被动动力减振器优化参数的设计方法。
短句来源
     Then, a simplified computational model of damping isolation systems is established for JZ20 2MUQ platform structure. The relationships between the parameter of isolation layer and structural damping ratio, including their vibration suppressed effect on the whole structure and the relative displacement of isolation layer are studied.
     针对渤海JZ2 0 2MUQ平台结构 ,建立了海洋平台结构阻尼隔振体系简化计算模型 ,研究了隔振层参数与结构阻尼比的关系以及它们对结构整体和隔振层层间相对位移的控制效果 ;
短句来源
     Also the relations between damping layer parameters and the structural damping ratio including the relative displacement control effect of structure and damping layers are studied. And the numerical simulation under wave force or earthquake force is carried out.
     研究了隔振层参数与结构阻尼比的关系以及它们对结构整体和隔振层层间相对位移的控制效果,进行了在波浪力和地震工况下的数值模拟.
短句来源
     This paper discusses the principal factor,the structural damping ratio affecting response spectrum in code of seismic design of highway bridges. Through comparative analysis of domestic and foreign response spectrum modification formulas,the paper also proposes a modification method for the response spectrum in the code when the damping ratio of the spectrum is not 5%. The proposed method herewith provides reference basis for revising the code and for seismic design of highway bridges.
     对影响公路桥梁抗震设计规范反应谱的主要因素—结构阻尼比进行讨论,通过对国内外的反应谱修正公式进行对比分析,提出公路桥梁抗震设计规范反应谱的阻尼比不是5%时的反应谱修正方法,为公路桥梁抗震规范的修订和公路桥梁的抗震设计提供参考依据。
短句来源
  “structural damping ratio”译为未确定词的双语例句
     The obtained results show that, in a certain range, earthquake ground motion models, site conditions and structural damping ratio have much influence on the zero-crossing rate of acceleration response of a structure, but have little effect on variation coefficients of response spectra.
     研究结果表明:在一定范围内,地震动模型、场地条件和结构体系阻尼比对结构加速度反应越零率有明显影响,但这三者对反应谱变异系数的量值影响不大。
短句来源
     In this paper,a new method of high precision calculation for damping ratio,namedZOOMBDFT" and some examples are introduced.It is poined out that the traditional method of 1K bytes FFT is not appropriate to the calculation of structural damping ratio,and the key tactor affecting the precision in the calculation by using half power bandwidth method lies in the sampling duration T.Two criteria upon which to guarantee the accuracy in the damping calculation are set up.
     提出了用“ZOOMBDFT”(聚焦细化大容量数据谱分析)法高精度求系统阻尼比的途径和计算实例,文内指出了国内外常规1K字节FFT计算系统阻尼比的不合理性,指出了采样时间长度T是影响频域用半功率带宽法求阻尼比精度的关键因子,并提出了保证阻尼计算精度的两个判别准则
短句来源
     Studies on the influences of the structural damping ratio on the performance of MTMD are carried out employing the defined assessment criteria.
     基于定义的评价准则 ,研究了结构阻尼比对MTMD性能的影响。
短句来源
     The numerical results indicate the influential degree of the structural damping ratio upon the performance of MTMD.
     数值结果表明 ,结构的阻尼比对MTMD的性能会产生影响。
短句来源
     The basic computational process of frequency-domain method is presented in order to highlight some parameters crucial to results of computation, including number of contributing modes, coupling terms between modes, vertical fluctuating components of wind, coherence function and structural damping ratio.
     文中结合对频域法计算过程的阐述,重点指出了直接影响计算结果的主要参数,包括参与组合振型的数量、振型耦合项的取舍、竖向脉动风效应、相关函数的选择和结构尼比等.
短句来源
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  相似匹配句对
     Structural boundary status can be judged by the structure damping ratio change.
     通过实测桥梁结构阻尼比的变化,可以对结构边界条件、结构材料阻尼特性的改变进行分析判断。
短句来源
     Study on the Damping Ratio of Concrete
     混凝土阻尼比研究
短句来源
     Experimental Investigation on the Non-proportional Damping Ratio of Several Structural Members
     几种构件的非比例阻尼比试验研究
短句来源
     Ratio (H.R.)
     Ratio .
短句来源
     Correction for Damping Ratio of Wind-induced Dynamic Responses for Structural Aeroelastic Model
     大跨度结构气弹模型风振响应的阻尼修正系数
短句来源
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  structural damping ratio
The logarithmic structural damping ratio for each mode is assumed to be 0.02.
      


A sectional model testing study on flutter control of the Tiger Gate Bridge by using tuned mass damper was carried out in T-J1 Boundary Layer Wind Tunnel in Tongji University. The control effectiveness was confirmed through the test, and the effects of the variance of parameters,such as structural damping, shape of the deck cross section, frequency ratio of TMD to bridge and damping of TMD, on the control effectiveness were also investigated. The new results are shown as follows: ① It is more effective for TMD...

A sectional model testing study on flutter control of the Tiger Gate Bridge by using tuned mass damper was carried out in T-J1 Boundary Layer Wind Tunnel in Tongji University. The control effectiveness was confirmed through the test, and the effects of the variance of parameters,such as structural damping, shape of the deck cross section, frequency ratio of TMD to bridge and damping of TMD, on the control effectiveness were also investigated. The new results are shown as follows: ① It is more effective for TMD to control flutter of bridges with lower structural damping ratio than those with higher structural damping ratio; ② It is more effective for TMD to control flutter of bridges with "more bluff" deck cross section than those with "more streamlined" deck cross section; ③ Frequency ratio of TMD to bridge and damping ratio of TMD have both effects on the control effectiveness,and the effect of the former is greater than that of the latter.

以广东虎门大桥为背景,在同济大学TJ-1边界层风洞中进行了被动调质阻尼器对颤振控制的研究.试验中考虑了结构阻尼特性、主梁断面外形、调质阻尼器参数(质量惯矩比、频率比及阻尼比)等对控制效率的影响,得出了一些新的结论:TMD对低阻尼桥的控制效果优于高阻尼桥;对较"钝"立梁断面的桥的控制效果优于较"流线"主梁断面的桥;TMD的频率及阻尼设置对控制效果均有影响,前者大于后者.

In this paper,a new method of high precision calculation for damping ratio,namedZOOMBDFT" and some examples are introduced.It is poined out that the traditional method of 1K bytes FFT is not appropriate to the calculation of structural damping ratio,and the key tactor affecting the precision in the calculation by using half power bandwidth method lies in the sampling duration T.Two criteria upon which to guarantee ...

In this paper,a new method of high precision calculation for damping ratio,namedZOOMBDFT" and some examples are introduced.It is poined out that the traditional method of 1K bytes FFT is not appropriate to the calculation of structural damping ratio,and the key tactor affecting the precision in the calculation by using half power bandwidth method lies in the sampling duration T.Two criteria upon which to guarantee the accuracy in the damping calculation are set up.

提出了用“ZOOMBDFT”(聚焦细化大容量数据谱分析)法高精度求系统阻尼比的途径和计算实例,文内指出了国内外常规1K字节FFT计算系统阻尼比的不合理性,指出了采样时间长度T是影响频域用半功率带宽法求阻尼比精度的关键因子,并提出了保证阻尼计算精度的两个判别准则

The objective of this paper is to establish a practical design method based on the design code for controlling wind induced vibration of tall buildings with passive absorbers. In the paper, the calculation formulas for equivalent structural damping ratio of control effect of passive absorbers for fluctuating wind vibration responses of tall buildings are derived. From this, a practical design method for controlling wind induced...

The objective of this paper is to establish a practical design method based on the design code for controlling wind induced vibration of tall buildings with passive absorbers. In the paper, the calculation formulas for equivalent structural damping ratio of control effect of passive absorbers for fluctuating wind vibration responses of tall buildings are derived. From this, a practical design method for controlling wind induced vibration of tall buildings with passive absorbers is presented based on both the load code of building structures and the structural design code of tall buildings. The calculation results by the method for the Shanghai Central Plaza, wihich is a thirty nine story reinforced concrete building with rectangular TLD,indicate that (1)The control effects of passive absorbers can be easily quantified and programmed into some common structural analysis programs for the design of tall buildings. (2)The method can be codified and its calculation results can be directly compared to the results of current structural design of tall buildings.

在建立了设置被动减振装置的高层建筑风振控制效果结构等效阻尼比计算公式的基础上,依据《建筑结构荷载规范》和高层建筑结构设计规程提出了设置被动减振装置高层建筑风振控制基于规范的实用设计方法。应用本文方法对设置矩形TLD的上海中环广场超高层建筑的计算结果表明:本文方法具有简单、直观,且可与常规的结构抗风设计结果进行直接比较的特点,是风振控制规范化的一种设计方法,完全可为广大结构工程师所接受。

 
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