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作 者:张威 谭蒙 刘亚枫 聂永斌 栾悦 ZHANG Wei;TAN Meng;LIU Yafeng;NIE Yongbin;LUAN Yue(Aerospace Times Feipeng Co.,Kunshan 215332,China)
出 处:《气体物理》2024年第2期54-65,共12页Physics of Gases
摘 要:随着人类社会的进步和城市物流的兴起,以复合式无人机为代表的无人机技术进入了快速发展阶段。在复合式无人机的研制周期中,气动优化设计选型扮演着非常重要的角色。针对基于代理模型的气动优化技术,对其关键参数自适应筛选和设计空间自适应更新进行了研究,形成了参数/空间自适应气动寻优平台,有效提高了气动优化过程中的寻优效率和搜索能力。针对一款复合式无人机提出机翼初步设计方案,并对其进行自适应气动寻优。优化翼根、翼梢翼型及由此生成的优化三维机翼在设计升力系数为1.0时的升阻比均提高5%以上,且对应迎角均减小2°以上。无人机机翼失速特性及滚转操控能力均得到有效提升。With the growing demand for unmanned transportation,the rise of compound drones is imperative.Aerodynamic optimization design plays a significant role in the development cycle of compound drones.Researches were performed on key parameter adaptive screening and design space adaptive updating of surrogate-based aerodynamic optimization techniques.A parametric/spatial adaptive aerodynamic optimization platform was established,which can improve the optimization efficiency and search capability effectively in the process of aerodynamic optimization.A preliminary design scheme of wing for a compound drone was presented,and adaptive aerodynamic optimization was carried out.The lift-to-drag ratios of the optimized wing root and tip airfoils and the resulting optimized wing were all increased by over 5%,with design lift coefficients equaling to 1.0,and the corresponding angles of attack were also reduced by more than 2°.The stall characteristics and the roll control ability of the wing were improved simultaneously.
关 键 词:复合式无人机 机翼设计 自适应优化 参数筛选 空间更新
分 类 号:V211.3[航空宇航科学与技术—航空宇航推进理论与工程]
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