气动干扰对串列双幅类流线形断面颤振的影响

PDF(1732 KB)

振动与冲击 ›› 2014, Vol. 33 ›› Issue (8) : 161-164.

论文

气动干扰对串列双幅类流线形断面颤振的影响

刘小兵1,3，杨群2，刘志文3

作者信息 +

Aerodynamic interference effect on flutter of twin streamline-liked sections in tandem

LIU Xiao-bing1,3，YANG Qun2，LIU Zhi-wen3

Author information +

文章历史 +

摘要

针对串列双幅类流线形断面，在均匀流场中进行了一系列的颤振稳定性风洞试验，并将试验结果与单幅类流线形断面的试验结果进行了对比。研究结果显示：气动干扰降低了双幅类流线形断面的颤振临界风速，间距越小，降低幅度越大；气动干扰增大了双幅类流线形断面的颤振频率，间距越小，增大幅度越大；与单幅类流线形断面相比，气动干扰使双幅类流线形断面的软颤振特性更明显。

Abstract

A series of wind tunnel test were performed to investigate flutter stability of twin streamline-liked sections in tandem. The test results were compared with those of single streamline-liked section. The study result show that flutter critical wind speed of twin streamline-liked sections is lower than that of single streamline-liked section and decreases with smaller distance; flutter frequency of twin streamline-liked sections is higher than that of single streamline-liked section and increases with smaller distance; the soft flutter characteristic of twin streamline-liked sections is more obvious compared with that of single streamline-liked section.

导出引用

刘小兵;杨群;刘志文. 气动干扰对串列双幅类流线形断面颤振的影响[J]. 振动与冲击, 2014, 33(8): 161-164

LIU Xiao-bing;YANG Qun;LIU Zhi-wen. Aerodynamic interference effect on flutter of twin streamline-liked sections in tandem[J]. Journal of Vibration and Shock, 2014, 33(8): 161-164