1. 中国航天空气动力技术研究院,北京,100074
2. 北京航空航天大学 宇航学院,北京,100191
3. 国家计算流体力学实验室,北京,100191
吕达*(1994-),男,山东人,博士生,工程师,研究方向:高超声速飞行器控制技术. E-mail:2442070076@qq.com
纸质出版:2023
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吕达, 张维桐, 张鲁民, 等. 面对称无尾高超声速飞行器三通道耦合失稳判据[J]. 空气动力学学报, 2023, 41(7): 74−83.
LYU Da, ZHANG Weitong, ZHANG Lumin, et al. Three-channel coupled instability criteria for symmetrical tailless hypersonic vehicles[J]. 2023, 41(7): 74-83.
吕达, 张维桐, 张鲁民, 等. 面对称无尾高超声速飞行器三通道耦合失稳判据[J]. 空气动力学学报, 2023, 41(7): 74−83. DOI: 10.7638/kqdlxxb-2022.0104
LYU Da, ZHANG Weitong, ZHANG Lumin, et al. Three-channel coupled instability criteria for symmetrical tailless hypersonic vehicles[J]. 2023, 41(7): 74-83. DOI: 10.7638/kqdlxxb-2022.0104.
针对新一代面对称高超声速飞行器通常采用的无尾布局、小控制面设计而导致的飞行器稳定性大幅降低以及通道间控制耦合严重的问题,基于飞行器的六自由度动力学方程,利用线化小扰动理论,通过推导引入了飞行器三通道开环和闭环的气动稳定性耦合判据,其判据中包括了传统的气动静导数和动导数,组成了新的三通道耦合稳定性判据体系。相比现有判据,本研究新引入了俯仰和滚转通道静稳定性耦合判据,以及三通道的动稳定性耦合判据,并用数值仿真验证了本文引入的判据在判断无尾布局高超声速飞行器稳定特性中的有效性,为该类飞行器提供了快速有效的稳定性分析工具。
Modern plane-symmetric hypersonic vehicles (HSV) typically feature a tailless configuration and small control surfaces
significantly reducing the vehicle’s stability and complicating the vehicle’s lateral and longitudinal control. This paper uses the linear small disturbance theory to develop three-channel open-loop and closed-loop coupled instability criteria for HSV. The criteria include the classical aerodynamic static and dynamic derivatives
forming a new group of three-channel coupled instability criteria. Compared with the existing criteria
this research introduces the static stability coupled criteria and the three-channel dynamic stability coupled criteria in the pitch and roll channels. The critical values of the lateral and longitudinal criteria are no longer zero as the classical criteria by considering dynamic derivative in the pitch channel. Moreover
the effectiveness of the three-channel coupled instability criteria is verified by numerical simulations. The new criteria improves the discrimination method for determining the static and dynamic stabilities and provides a fast and effective tool for stability analysis of this type of vehicle.
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