1) buffeting analysis
抖振分析
1.
A simplified method is then established for long-span bridge buffeting analysis that can be easily implemented in a finite element prog.
通过对准定常气动力模型[1]进行双变量泰勒展开,导出与自激力等价的12阶单元气动阻尼矩阵和气动刚度矩阵,自激力以单元气动阻尼矩阵和单元气动刚度矩阵的形式在ANSYS中以Matrix27矩阵输入,提出一套在ANSYS中实现大跨度桥梁抖振分析的简便方法。
2.
Then by taking the simulation results as the natural wind in the bridge address, the buffeting analysis in time domain is carried out for an arch bridge of linking pole.
探讨了利用非平稳随机过程理论和少量的实际风速记录模拟自然风 ,并以此作为桥址处的自然风用时域抖振分析方法对某系杆拱桥进行抖振时域分析。
2) time-domain buffeting analysis
抖振时域分析
1.
A time-domain buffeting analysis considering pylon wind field was conducted to analyze the buffeting responses,the aerodynamic admittance function was set as 1 and Sears,respectively,and the equivalent wind spectrum method wa.
为了进行对现有抖振时域分析理论的实例验证,在杭州湾跨海大桥全桥模型风洞试验中,不仅对抖振位移进行了测量,还通过在塔根布设动态应变片完成了桥塔内力的实测。
4) jitter analysis
抖动分析
1.
In recent years, many theories of jitter analysis and decomposition have been developed based on the past study contents of jitter.
近年来,在以往抖动研究的基础上,又提出了抖动分析与分解理论,对这一理论的深入研究可以使人们更科学、更全面地去理解、测量和消除抖动,这对于高速串行通信系统的评估和设计工作具有重要的理论和工程意义。
5) jitter spectrum analysis
抖动谱分析
1.
Research on signal jitter spectrum analysis based on the modulation domain analysis;
基于调制域分析的信号抖动谱分析研究
6) Buffeting
[英]['bʌfitiŋ] [美]['bʌfɪtɪŋ]
抖振
1.
Vibration Suppression Characteristics of Multiple Tuned Mass Damper with Its Application to Buffeting Control of Bridges;
多重调质阻尼器制振性能及对桥梁抖振的控制
2.
Time domain analysis of buffeting of long-span continuous rigid frame bridge at the longest cantilever stage;
大跨连续刚构桥最大悬臂阶段抖振时域分析
3.
The influence of wind-induced buffeting in the construction of cable support tower in cable-stayed bridge and measures for vibration reduction;
斜拉桥索塔施工中的风致抖振影响及减振措施
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