3) buffet force of fluctuating wind
脉动风抖振力
4) wind-induced vibration
风致振动
1.
Advances in research of wind-induced vibration of long-span high-voltage transmission line system;
大跨越高压输电塔线体系风致振动的研究与进展
2.
Experimental study on wind-induced vibration inertial force for a high-rise building;
某高层建筑风致振动惯性力的试验研究
3.
The wind-induced vibration analysis is studied based on the modal analysis.
在模态分析的基础上,进一步对管桥进行风致振动分析。
5) wind induced vibration
风致振动
1.
In this paper,an aeroelastic model of an annular cantilevered roof of a stadium was successfully designed and manufactured on proper simplification of the similarity rules and based on the characteristics of the structure and wind induced vibration responses of such structures.
通过对结构典型测点加速度响应谱的特征分析以及对风向和风速对结构加速度和位移响应的影响的分析得到:看台以上挑篷中部的振动最强;风向对挑篷不同部分的振动幅值和参与振型有很大影响;挑篷的风致振动响应由多模态贡献。
2.
Safety and serviceability are in this paper preliminarily established for controlling wind induced vibration of long span bridges.
并针对大跨桥梁风致振动的特点 ,考虑桥梁风振的参数不确定性 ,提出了桥梁风振半主动控制的概念 ,设计了一种新型的可调频率的半主动调质阻尼器 ,建立了相应的分析方法。
3.
In order to study the wind induced vibration and modal of long span suspension bridges under large wind, the data of wind induced vibration response are got by the real time monitoring system of Humen Bridge.
为研究大跨悬索桥的风致振动及在大风下的模态 ,利用已建立的虎门大桥实时监测系统获得了风致振动数据。
6) wind-induced flutter
风致颤振
1.
The Multi-mode Par-ticipating and Single Parameter searching method(M-S method)is introduced briefly at first,and then the according pro-gram,which is used to implement wind-induced flutter analysis of long-span bridge using visual fortran based on M-S method in ANSYS,is developed by the authors of the paper.
文章首先简要介绍了桥梁风致颤振分析的多模态参与单参数搜索M-S法,然后以VisualFortran为二次开发平台,运用M-S法编写了在AN-SYS中实现大跨度桥梁风致颤振分析的程序和相应的界面菜单程序。
补充资料:抖振
抖振 buffeting 边界层分离或湍流激起结构或部分结构的不规则振动 。激振力几乎不受振动本身的影响。主要实例为飞机尾翼的抖振。当飞机作跨声速飞行时,机翼表面有局部超声速区,该区以激波结束。激波与翼面上的边界层有强烈的相互作用 ,当激波强度足够大时,导致边界层分离。分离气流很不稳定,当其流向下游冲击尾翼时,就使尾翼发生抖振。发生抖振的飞行马赫数同翼剖面的形状和迎角有关。当自由流速达到超声速时,激波移至后缘,抖振消失。此外,飞机作低速大迎角飞行时,机翼表面及翼身结合处的边界层严重分离,挟带大量混乱涡的分离气流冲击尾翼同样引起抖振。抖振严重时,飞机有可能在空中解体。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条