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跨声速飞行中,激波附面层干扰会引起激波周期性自激振荡,这种现象称之为跨声速抖振。跨声速抖振引起的脉动载荷有可能造成结构疲劳甚至引发飞行事故,该问题一直是航空领域的研究难点。本文从风洞试验和数值模拟两个方面总结了跨声速抖振研究的主要方法,重点综述了近几年在跨声速抖振机理研究方面以及结构运动对抖振响应特性的影响方面取得的新进展,简要总结了跨声速抖振的被动控制及主动控制方法。在此基础上,提出了跨声速抖振后续研究的重点方向:抖振机理的进一步探究,结构弹性特征对抖振特性的影响以及闭环主动控制等。
Across the sound velocity flight, the shock surface interference can cause periodic self-oscillation shock wave, a phenomenon known as transonic chattering. The flutter load caused by transonic buffeting may cause structural fatigue and even lead to flight accidents. This problem has always been a problem in the aviation field. In this paper, we summarize the main methods of transonic vibration buffeting from the aspects of wind tunnel test and numerical simulation. We focus on the recent research on the mechanism of chattering vibration and the effect of structural motion on the chattering response The paper summarizes the passive control and active control method of transonic chattering. On this basis, the key directions of the follow-up study on the transonic chattering are put forward: the further investigation of the chattering mechanism, the influence of the structural flexibility on the chattering characteristics and the active control of the closed loop.