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基于气动热、气动弹性双向耦合的热气弹分析方法,建立了高超声速三维壁板流固热耦合分析模型。气动力计算采用三阶活塞理论,气动热计算采用参考温度法,热传导和结构响应采用有限元方法进行。研究了不同边界条件、飞行轨迹下耦合方式对三维壁板热气弹响应的影响。结果表明:不同流固热耦合机制对高超声速气流中壁板响应预测影响各不相同,表明了研究的必要性。
Based on aeroelastic and aeroelastic two-way coupled thermal gas bomb analysis method, a three-dimensional hypersonic three-dimensional wall-fluid-structure thermal-mechanical coupling model was established. Third-order piston theory is used for aerodynamic calculation, reference temperature method for aerodynamic heat calculation, and finite element method for heat conduction and structural response. The influence of the coupling modes under different boundary conditions and flight path on the response of the three-dimensional panel to the thermal aeroelasticity is studied. The results show that the effects of different fluid-solid coupling mechanisms on the prediction of slate response in hypersonic airflow are different, indicating the necessity of the study.