基于修正活塞理论的壁板非线性热气动弹性分析  

Study on Nonlinear Aerothermoelastic Response of Panel Based on Van Dyke Piston Theories

作　　者：郭静[1] 王建民[1] 张忠[1] 李海波[1] 高博[1] GUO Jing;WANG Jian-min;ZHANG Zhong;LI Hai-bo;GAO Bo(Science and Technology on Reliability and Environment Engineering Laboratory,Beijing Institute of Structure and Environmental Engineering,Beijing 100076,China)

机构地区：[1]北京强度环境研究所可靠性与环境工程技术重点实验室,北京100076

出　　处：《强度与环境》2022年第5期145-150,共6页Structure & Environment Engineering

基　　金：国家自然科学基金(11502024,11502023,11402028)。

摘　　要：高马赫数飞行的航天飞行器,气动力、热、结构多物理场相互耦合,易引发热气动弹性稳定性问题。新型复合材料的广泛应用,使得壁板结构易出现极限环振荡、混沌等复杂非线性热气动弹性响应形式,影响飞行安全。本文基于Patran/Nastran二次开发语言编制了非线性热气动弹性分析程序,针对复合材料壁板,采用Van Dyke修正活塞理论计算非定常气动力,进行典型温度工况下的非线性热气动弹性分析。结果表明,本文方法可对壁板结构LCO,周期,非周期和混沌等复杂非线性热气动弹性响应进行有效预示。High flight Ma numbers are the common features of the hypersonic vehicles. The multiple physical field interaction of the aerodynamic force, the aero heating, and the structures may lead to aerothermoelastic stability problems. The wide application of new composite materials makes the panel structure prone to limit cycle oscillation,chaos and other complex nonlinear thermal aeroelastic responses, which affect flight safety. A nonlinear thermoaeroelastic analysis program is compiled based on Patran/Nastran secondary development language. For the composite panel, the unsteady aerodynamic force is calculated by Van Dyke’s modified piston theory, and the nonlinear thermo aeroelastic analysis is carried out under typical temperature conditions. The results show that this method can effectively predict the complex nonlinear thermal aeroelastic responses of panel structures such as LOC, periodic,aperiodic and chaotic.

关 键 词：Van Dyke活塞理论 壁板 热气动弹性 非线性响应 程序 

分 类 号：V415.3[航空宇航科学与技术—航空宇航推进理论与工程]