高超声速飞行器气动弹性力学研究综述

高超声速飞行器设计上的特点带来了一系列的气动弹性新问题。本文回顾高超声速飞行器气动弹性研究的历史与现状,着重介绍和分析了高超声速非定常气动力计算方法、热环境下的气动弹性问题、壁板颤振、推力影响下的气动弹性稳定性问题以及气动推进/气动弹性耦合的多学科交叉问题,相关的主动控制方法的研究进展亦有所介绍。在已有气动弹性问题研究发展的基础上,提出了高超声速飞行器在气动弹性领域需要解决和关注的若干问题,包括高超声速气动弹性试验、燃料消耗的质量变化对于飞行器气动弹性特性的影响以及气动弹性力学与飞行力学综合等方面。

Review of Studies on Aeroelasticity of Hypersonic Vehicles

There are many new problems of aeroelasticity which are introduced by the novel concepts and system characteristics in the design process of hypersonic vehicles. An overview of the studies on aeroelasticity of hypersonic vehicles is presented here. Special attention is paid to the following areas: the compute method of unsteady aerodynamics in hypersonic flow;aeroelastic characteristics with temperature effects;panel flutter in hypersonic flow;thrust induced instability of aeroelasticity;the coupling problem of aerodynamics, propulsion and aeroelasticity;and also the active control methods used in the solutions of these problems. Finally, based on the progress of existing research in these areas, some key issues are introduced which deserve more attention of the researchers' for solution. These include: experimental research on hypersonic aeroelasticity, effect of mass variety on the characteristics of aeroelasticity which is caused by the consumption of the fuels, and integration analysis of aeroelasticity and flight dynamics.