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Aerodynamic configuration design and optimization for hypersonic vehicles

机译：高超音速飞行器的气动配置设计和优化

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To improve the design level and flight characteristics of hypersonic vehicles is the constant aim of designers. And aerodynamic configuration design is a very important aspect to achieve this aim. The problem of hypersonic design and optimization is doomed to be a typical multidisciplinary design optimization (MDO) one because of strong coupling and interaction phenomena during the hypersonic reentry flight mission, especially highly coupled aerodynamics, thermal protection and flight performance. Recently, the MDO method is widely adopted in the field of hypersonic vehicle configuration design. From the aerodynamic point of view, the aerodynamics, aerothermo-dynamics and trajectory are considered in this paper. Generally speaking, the aerodynamic characteristics, aerodynamic heating and trajectory are determined by the aerodynamic configuration and the design of flight trajectory. The design method considering these three disciplines is proposed. Take the AHW analog, HTV-2 analog and X-37 analog configurations as examples, the problems considering the interactions among aerodynamics, aerodynamic heating and trajectory are discussed. The investigation achieves the integration of aerodynamics, aerodynamic heating and trajectory, and the multidisciplinary analysis softwares are integrated. The configuration and the control strategy of angle of attack are optimized, and the integrated characteristics and flight performances are improved. The set of results can provide a series of feasible selections for the decision makers.
机译：提高高超音速飞行器的设计水平和飞行特性是设计人员的不变目标。气动配置设计是实现这一目标的一个非常重要的方面。高超音速设计和优化的问题注定是一种典型的多学科设计优化（MDO），因为高音速再入飞行任务中尤其是高度耦合的空气动力学，热保护和飞行性能具有很强的耦合和相互作用现象。近来，MDO方法在高超音速车辆配置设计领域中被广泛采用。从空气动力学的角度，本文考虑了空气动力学，空气热力学和轨迹。一般而言，空气动力特性，空气动力加热和轨迹由空气动力配置和飞行轨迹的设计决定。提出了考虑这三个学科的设计方法。以AHW模拟，HTV-2模拟和X-37模拟配置为例，讨论了考虑空气动力学，空气动力学加热和弹道之间相互作用的问题。该研究实现了空气动力学，空气动力学加热和弹道的集成，并且集成了多学科分析软件。优化了迎角的配置和控制策略，提高了综合性能和飞行性能。结果集可以为决策者提供一系列可行的选择。

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