【摘要】 颤振分析是高超声速飞行器设计中的关键技术之一。本文通过Fluent和ANSYS分别求解流场和结构场，研究了舵面模型在不同流动状态下的颤振问题。结果表明，对于本文模型，气动热使结构模态频率下降和产生热应变；在湍流下，舵面的颤振速度区间相比常温下降26.9%，在层流下，也有13.4%的下降；在相同马赫数不同动压下，动压较低时的舵面颤振位移响应趋于收敛。以上结果可为双楔形翼在高超声速飞行器中的应用提供参考。更多还原

【Abstract】 Flutter analysis is one of the key techniques in hypersonic vehicle design. Flow field and structure field were solved by Fluent and ANSYS respectively, and the flutter problem of the rudder surface model under different flow states was studied. The results show that aerodynamic heat reduces the modal frequency and generates thermal strain for the proposed model. The flutter velocity interval of the rudder decreases by 26.9% in turbulent flow and 13.4% in laminar flow. Under the same Mach number and different dynamic pressure, the flutter displacement response of the rudder tends to converge when the dynamic pressure is lower. The above results can provide reference for the application of double wedge-shaped wing in hypersonic vehicle.更多还原