高空长航时飞行器机翼跨声速气动优化设计  

Transonic aerodynamic optimal design of high altitude long endurance aircraft wing

作　　者：李隆[1] 许瑛[1] 孙淼[1] 黄璜[1] 

机构地区：[1]南昌航空大学飞行器工程学院,江西南昌330063

出　　处：《飞行力学》2016年第5期26-29,共4页Flight Dynamics

基　　金：国家自然科学基金资助(51266012);江西省人力资源和社会保障厅留学归国项目(DB201406147)

摘　　要：高空长航时飞行器应具有升阻比高和俯仰力矩小的气动特性。基于遗传算法的随机性和隐含并行性,结合适用于多目标处理的Pareto方法,在低雷诺数和跨声速条件下,展开了高空长航时飞行器机翼外形的多目标、多设计点的数值优化设计。仿真计算结果表明,所设计的机翼具有较高的升阻比和较低的俯仰力矩,同时在设计马赫数附近升阻比的变化比较平稳,具有良好的综合气动性能。High altitude long endurance aircraft are characterized by high lift-to-drag ratio and low pitching moment. Based on stochastic and implicit parallel properties of genetic algorithm,combined with Pareto method which is suitable for multiple-objective optimization design,the multiple-objective and multiple-point aerodynamic optimal design of high altitude long endurance aircraft wings under low Reynolds number and transonic speed is carried out. The numerical results show that the lift-to-drag ratio is increased and the moment coefficient is decreased,and the lift-to-drag ratio is steady in a wide Mach number range. The optimal wings have better integral aerodynamic performance.

关 键 词：高空长航时 机翼 优化设计 遗传算法 

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]