1)  wind-induced vibration
风振试验
2)  wind-induced vibration
风振
1.
Impact of geometric parameters on the wind-induced vibration reduction of spatial reticulated shell structures with MR dampers introduced;
MR阻尼器在空间网壳结构风振抑制中的结构几何参数影响
2.
Discussion on the value of the peak factor in the analysis of wind-induced vibration;
结构风振极值分析中的峰值因子取值探讨
3.
Effect of soil-structure interaction on comfortable extent of tall building to wind-induced vibration;
土-结构相互作用对高层建筑风振舒适度的影响
3)  wind vibration
风振
1.
Dead weight s influence on seismic response and wind vibration response of transmission iron-tower;
自重对输电铁塔的风振响应和地震响应分析
2.
The author introduces the design of Xidong Invert Siphon Project and puts forward the actual treatment measures for solving three problems in the design of single cable plane, they are cable stayed steel pipe bridge wind vibration, temperature compensation and oscillation of tower column during charging water.
提出了解决了单面索斜拉钢管桥设计中风振、温度补偿和充水时塔柱摆动等三个问题的具体处理措施。
3.
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。
4)  wind induced vibration
风振
1.
The wind induced vibration and vibration reduction of cables are in long term the key concerns of research in this field.
本文阐述了斜拉索各种风振形式的振动机理和实际工程中常用的减振方法以及国内外该领域目前的研究状况。
2.
Controlling the comfort of tall building due to wind induced vibration is important for structure design.
高层建筑风振舒适度的控制是结构抗风设计的一项重要内容。
3.
To offer accurate wind induced vibration coefficients for design of a power transmission line system and check the influence of conductors on vibration of tower, an aeroelastic model was designed and manufactured according to the law of similarity.
高压架空输电线路是集高耸和大跨度两种特征于一身的风敏感结构体系 ,在风荷载作用下 ,风振效应显著。
5)  wind-induced vibration
风振响应
1.
In order to analyze the contribution-significant modes and the mode coupling effects for the wind-induced vibrations,a Ritz-POD method is proposed for identifying the contribution-significant modes,which takes into account the vibration-participating ability of each natural mode,and the similarity between the mode and the spatial distribution of the fluctuating wind load.
为研究网壳结构风振响应的主要贡献模态分布规律及模态耦合效应,有利于提高结构风振响应的计算效率,利用Ritz-POD法,综合考虑各结构振型自身参振能力的强弱及其与脉动风压空间分布模式之间的关系来识别单层球面网壳风振的主要贡献模态;利用模态广义位移协方差矩阵的特性分析其模态耦合效应。
2.
Rcsearch on the analytical method for wind-induced vibration of long span cable-staycd bridge and its progress as well as its future development is discussed in this paper.
介绍了大跨度斜拉桥风振响应研究的现状及发展 ,对各种风振分析方法进行了评述 ,并对大跨度斜拉桥风振研究中存在的一些问题 ,提出了作者的观点 。
3.
Many studies of membrane structures were focused on the form-finding, cutting patterns, static analyses and construction, rarely involved in the field of studying its characteristics of wind-induced vibration.
本文从风洞模型试验出发,对薄膜结构上的风压特性进行了较深入的研究,并从理论方面对作用在屋盖上的附加空气质量进行了详细的分析,对薄膜结构的风致振动、涡激振动的机理以及风振响应进行了较为系统的研究,取得了一些有意义的结论。
6)  aero-vibration
微风振动
1.
Second,a new aero-vibration force induced by shed vortex had been educed by wind power equivalent principle,and this force has the capability to account for the aero-vibration distribution and the wind power input which had been obtained in laboratory.
为预防微风振动对输电线路的破坏、有别于传统的能量平衡法,研究了微风振动的半解析解。
2.
The vertical, steady-state, monofrequent aero-vibration of a single 1000kV UHV transmission conductor with a Stockbridge-type damper attached was researched by the finite element method (FEM) differing from the traditional energy balance method (EBM).
为了分析安装防振锤的1000kV特高压架空输电线路的微风振动强度,研究了利用有别于传统能量平衡法(EBM)的有限元方法(FEM)分析微风振动的关键技术。
3.
Differing from the traditional energy balance method(EBM)the finite element method(FEM)is adopted to analyze the aero-vibration of 1000kV UHV transmission conductors.
对于1000kV特高压架空输电线路,有别于传统的能量平衡法(EBM),研究了利用有限元方法(FEM)分析微风振动的关键技术。
参考词条
补充资料:颤振试验
      主要指确定飞行器(整体或部件)的颤振临界速度的试验。当飞行达到一定速度时,由于空气动力和结构弹性振动的相互影响,飞行器会发生一种称之为颤振的自激振动,这时的速度叫颤振临界速度。大多数颤振会造成灾难性后果。例如飞机的机翼和尾翼在以秒计的短时间内发生破坏。在第一次世界大战初期,Handley Page轰炸机曾由于尾翼颤振而使机身和尾翼发生激烈振动。1917年,DH-9飞机也因尾翼颤振而坠毁。这些颤振事件促使航空工程界首先开展颤振的理论和试验研究,并把这项工作列为飞行器设计工作中的一个重要环节。颤振试验基本上可以分为两大类:
  
  ①模型试验 这类试验可用缩尺模型在风洞中进行。供试验用的模型应该满足空气动力学、结构动力学和几何形状等方面相似律的要求,这些要求内容广泛,以致颤振模型很难全部满足。解决办法通常是根据具体情况忽略某些次要因素。在风洞中进行试验的一般作法是逐步提高气流速度,当模型的振动由衰减转变为扩散时,气流速度就等于颤振临界速度。在设计工作中,为了研究机翼上外挂物(如发动机、油箱、武器等)对颤振速度的影响,可采用风洞模型颤振试验,它能方便地确定外挂物的最佳位置。除风洞试验外,也可利用受控飞行的火箭或在专门设计的轨道上滑行的火箭橇进行模型颤振试验。对于高速飞行,这类方法相当重要,它可以避免风洞的洞壁干扰,使模型经受的气流环境和实物相同。
  
  ②飞行试验 即用真实飞行器进行的飞行颤振试验,由于它能反映真实情况而受到重视。试验方法一般是逐步提高飞行速度,并记录在每一飞行速度下飞行器结构对外加激励的振动响应,然后导出振动衰减率和飞行速度的关系曲线,最后利用外推法得到振动衰减率为零值时的颤振临界速度。但是这类试验的危险性较大。
  
  此外,还有工程结构(如钢结构悬桥等)的颤振试验。
  
  

参考书目
   R.Mazet,AGARD-Manual on Aeroelasticity,Vol.4,London,1961.
   R. L. Bisplinghoff,H. Ashley and R. L. Halfman,Aeroelasticity, Addison-Wesley Pub.Co.,Cambridge,Massachu-setts,1957.
  

说明:补充资料仅用于学习参考,请勿用于其它任何用途。