考虑气动加热瞬态温度效应的复合材料壁板超音速热气动弹性LCO特性研究

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (2) : 315-322.

论文

刘雅婷 1，段静波 1,2，徐步青 1,2，高艺航 3,4

作者信息 +

Supersonic LCO responses of composite panels with consideration of transient aerodynamic heating effect

LIU Yating1， DUAN Jingbo1,2， XU Buqing1,2， GAO Yihang3,4

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文章历史 +

摘要

研究了考虑气动加热瞬态温度效应的复合材料壁板非线性热气动弹性行为。对于气动热模型，采用Eckert参考温度法计算气动加热热流，采用有限差分法求解包括壁板面内和贯穿厚度方向的二维瞬态温度场。对于气动弹性模型，采用Von Karman假设来描述复合材料壁板的大挠度变形，采用一阶活塞理论描述超音速气动力。在本文方法验证后，首先给出了考虑气动加热瞬态效应下的复合材料壁板瞬态温度响应和气动弹性极限环振荡（LCO）响应，并与壁板在稳态温度场中的气动弹性LCO响应进行对比分析。然后，重点讨论了考虑气动加热产生的瞬态温度效应下斜激波、来流动压、传热系数和初始干扰力等因素对复合材料壁板超音速热气动弹性LCO响应和瞬态温度场的影响规律。

Abstract

The nonlinear aerothermoelastic behavior of composite panels with transient aerodynamic heating temperature effect was investigated. For the aerothermal model, the aerodynamic heat flux was obtained using the Eckert reference temperature method and the two-dimensional transient temperature field including the in-plane and through-thickness directions of the panel was calculated by the finite difference method. For the aeroelastic model, the Von Karman assumption was used to describe the large-deflection deformation of the composite wall plate, and the first-order piston theory was used to calculate the supersonic aerodynamic force. After the verification of the proposed method, the transient temperature response and aeroelastic limit cycle oscillation (LCO) response of composite panels considering the transient effect of aerodynamic heating were first presented, and compared with the aeroelastic LCO response of the panel in the steady-state temperature field. Moreover, the influences of the shock wave, incoming flow pressure, heat transfer coefficient and initial interference force on the supersonic aerothermoelastic LCO response and transient temperature field of composite panels considering the transient aerodynamic heating temperature effect were discussed.

导出引用

刘雅婷 1，段静波 1,2，徐步青 1,2，高艺航 3,4. 考虑气动加热瞬态温度效应的复合材料壁板超音速热气动弹性LCO特性研究[J]. 振动与冲击, 2024, 43(2): 315-322

LIU Yating1， DUAN Jingbo1,2， XU Buqing1,2， GAO Yihang3,4. Supersonic LCO responses of composite panels with consideration of transient aerodynamic heating effect[J]. Journal of Vibration and Shock, 2024, 43(2): 315-322

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