In this paper, the dynamic reliability of antenna reflector accuracy under wind vibration is studied.
本文研究了风振下天线反射面精度的动力可靠性问题。
The article recounts basic way and observation process of wind vibration observation of high-rise building.
叙述了高层建筑风振监测的基本方法及监测过程。
The main form of the rod wind vibration is crosswind vibration, called the vortex-induced vibration according to the reason.
岸边起重机杆件的风致振动的主要表现形式为横风向的振动,按发生原因称为涡激振动。
The mechanism of wind vibration control of single tube cone steel towers using tuned spring mass damper (called TSD) has been studied.
针对调频弹簧质量阻尼器(TSD)对单管圆锥钢塔风振控制的机理作了深入研究。
And the contents are as follows: 1 numerical simulation of wind speed and wind vibration time-history analysis based on numerical simulation.
研究主要包括以下几个方面:1风速时程数值模拟及基于数值模拟的风振时程分析研究。
Traditional loading patterns take wind load as static load, it is not applicable for gantry cranes, wind vibration should also be considered.
因此如传统加载形式,将风荷载作为静力荷载加至起重机上并不适用,还必须考虑风致振动的问题。
Based on random vibration theory, the response of the structure under random wind load and the formula of wind vibration factor was developed.
笔者为此从随机振动理论出发,对点支式幕墙支撑结构的风振系数进行了研究。
This paper presents a statistical analysis method on extreme distribution of the wind vibration responses for tower structure under wind loads.
提出了塔结构风振反应最大值分布的统计分析方法。
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。
In this paper, the vibration problem of a chimney is studied from the aspects of chimney frequencies, wind vibration frequencies and Reynolds number.
本文从烟囱频率、风振频率和雷诺数三方面研究了该烟囱的振动问题。
The equations for computing the structural response control force of TLD under wind vibration and the equivalent damp ratio of TLD are first derived.
文中,推导了TLD对结构风振反应的控制力和控制效果的等效阻尼比,介绍了悬吊AMD对设置TLD结构脉动风振反应的最优控制分析方法。
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.
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 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。
For some ship -lifting machinery room, the scheme of integral truss structure and the controlling measures against earthquake and wind vibration are presented.
结合某升船机工程,提出了机房整体网络结构方案及其抗振与抗风控制措施。
This paper introduces the design of controlled wind vibration response for the main building of Jinshan mansion in Zhuhai with shallow water tuned liquid damper(TLD).
本文介绍了矩形浅水TLD对珠海金山大厦主楼风振控制的设计。
The method using interference rib is introduced, which simulate the wind vibration of round cross-section rod via the test, and gain some effect to reduce the vibration.
提出利用抗扰条肋抑制此类风致振动的方法,并通过试验方法模拟了圆截面杆件的风致振动,取得一定的振动抑制效果。
In this paper, the structural response under the effect of wind vibration of steel structured high tower supported with a several storied concrete building is mainly discussed.
主要研究建于低层钢筋混凝土建筑物上的钢结构高塔在风振作用下的结构响应。
What's more, the mechanism and calculation method of across-wind vibration of high-rise structure is expounded. The vortex-excited resonance response of the tower is calculate.
对高耸结构横风向振动的机理和计算方法进行了阐述,计算了观光塔结构的涡激共振响应。
Then calculating the shape coefficients of the station room and platform canopy and the wind vibration coefficients of the platform canopy on the basis of the wind-tunnel test;
根据风洞试验的结果计算站房及站台雨棚的体型系数、站台雨棚的位移风振系数;
Wind vibration analysis based on numerical simulation mentioned above checked by the results gained time-history analysis based on wind tunnel test data is applied in this paper.
以基于风洞试验风压数据的风振时程分析结果为参考,对基于数值模拟的风荷载时程进行校核并应用于该结构的风振时程分析。
When the skybridge rigidity is weak comparing with that of the buildings, the wind vibration analysis and wind resistant analysis become very important in the design of skybridge.
因此当连廊的刚度与主体建筑刚度相比较弱时,连廊的风振分析与抗风设计往往成为设计中的关键问题之一。
In addition, this paper also calculates the displacement wind vibration of two systems, and compares the result of the equivalent static force method and the time domain analysis method.
同时,计算出了两种体系的位移风振系数,比较分析了等效静力法和时程分析法的计算结果。
The simulated wind vibration loads are then applied to the time-history analysis of wind vibration response of single-layer spherical latticed shells by the finite-element program ANSYS.
将模拟出的风荷载作用于单层球面网壳,用有限元程序ANSYS进行了网壳结构的风振响应时程分析。
Because the across-wind dynamic responses of some high-rise buildings exceed the along-wind dynamic responses, the across-wind vibration would become the control factor of structure design.
对于某些超高层建筑,其横风向风振响应甚至超过顺风向而成为结构设计的控制性因素。
In China, the high rise structures load code is used for the large span spatial structures, only the first frequency is taken account for the wind vibration analysis, which is not reasonable.
我国现在仍是采用高耸或高层结构的荷载规范,只取结构的第一阶频率计算风振系数,按此方法进行大跨空间网格结构的风振分析是很不合理的。
Coefficient parameters of viscous damper were analyzed, the rational parameters were proposed, and the elasticity-plastic anti-seismic time-history analysis and random wind vibration were performed.
对黏滞阻尼器阻尼系数进行了参数分析,得到黏滞阻尼器比较合理的阻尼系数,然而进行了弹塑性抗震时程分析和随机风振分析。
Under cross wind action, vehicle-bridge coupling vibration analysis requires consideration of aerodynamic force parameters of vehicle and bridge deck.
侧向风作用下的车桥耦合振动分析需要考虑相互气动影响的车辆和桥梁各自的气动参数。
Stay cables are susceptible to vibration under wind and traffic loading due to their large flexibility, relatively small mass and very low inherent damping.
由于拉索具有极大的柔性,相对较小的质量,以及非常低的阻尼,其对风荷载及交通荷载引起的振动十分敏感。
The random vibration method for the analysis of large parabolic antenna structure response to wind load is proposed in this paper.
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。
There are great differences in the vibration characteristics induced by wind between large steel bridge tower and concrete bridge towers.
大型钢制桥塔其风振特点与常规混凝土桥塔有较大差异,国内有关钢桥塔风振研究较少。
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