A Study on the Structural Integrity of Hypersonic Vehicles According to Flight Conditions : 비행 환경에 따른 극초음속 비행체의 구조 건전성에 관한 연구

초록

In hypersonic regime, the complicated interaction between the air and surface of aircraft results in intensive aerodynamic heating on body. Provided this phenomenon occurs on a hypersonic vehicle, the temperature of the body extremely increases. And consequently, thermal deformation is produced and material properties are degraded. Furthermore, those affect both the aerothermoelastic stability and thermal safety of structures significantly. With the background, thermal safety and dynamic stability are studied according to the altitude, flight time and Mach number. Based on the investigation, design guideline is suggested to guarantees the structural integrity of hypersonic vehicles in terms of both of thermal safety and dynamic stability. © 2019 The Korean Society for Aeronautical and Space Sciences.

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