Z字形折叠无人机气动优化设计  

Aerodynamic optimization design of Z-shaped folding UAV

作　　者：孟宾 张锦康 奚乐乐 杨泽夏 周宁 MENG Bin;ZHANG Jinkang;XI Lele;YANG Zexia;ZHOU Ning(School of Mechanical Engineering,Hebei University of Science and Technology,Shijiazhuang,Hebei 050018,China;School of Electrical Engineering,Hebei University of Science and Technology,Shijiazhuang,Hebei 050018,China)

机构地区：[1]河北科技大学机械工程学院,河北石家庄050018 [2]河北科技大学电气工程学院,河北石家庄050018

出　　处：《河北科技大学学报》2023年第5期450-458,共9页Journal of Hebei University of Science and Technology

基　　金：河北省自然科学基金(F2022208007);河北省教育厅基础研究重点培育专项(JZX2023005);河北省科技重大专项(22280802Z);河北科技大学基础研究质量提升专项(重点)(2021YWF12);河北科技大学博士科研基金(1181439)。

摘　　要：针对Z字形无人机存在滚转力矩和偏航力矩的问题,提出一种基于混合翼型参数化的整机多目标优化方法,以非支配排序遗传算法(NSGA-Ⅱ)为核心与混合翼型参数化、SCDM流场建模、Fluent Meshing网格划分以及Fluent Solution流场计算相结合,建立优化模型,进而开发出基于Isight平台的整机自动优化流程,实现Z字形无人机的气动优化设计。结果表明,基于混合翼型参数化的优化平台,增加了翼型优化的搜索空间,实现了多目标预定数值的优化,减小了Z字形无人机的滚转力矩和偏航力矩,提高了其整体的气动性能。所提方法能消除有限翼展无人机的力矩,为解决不对称无人机滚转和偏航问题提供了技术参考。Aiming at the problems of rolling torque and yaw torque of zigzag UAV,a multi-objective optimization method based on hybrid airfoil parameterization was proposed.The optimization model was established by combining the non dominated sorting genetic algorithm(NSGA-Ⅱ)with hybrid airfoil parameterization,SCDM flow field modeling,fluent meshing and fluent solution flow field calculation.Then an automatic optimization process based on Isight platform was developed to realize the aerodynamic optimization design of zigzag UAV.The results show that the optimization platform based on hybrid airfoil parameterization increases the search space of airfoil optimization,achieves the optimization of multi-objective predetermined values,reduces the roll torque and yaw torque of Z-shaped UAV to the greatest extent,and improves its overall aerodynamic performance.The proposed method can eliminate the moment of UAV with limited wingspan,which provides a technical reference for solving the roll and yaw problems of asymmetric UAV.

关 键 词：定翼机 无人机 优化设计 遗传算法 翼型参数化 流场建模 空气动力学性能 

分 类 号：V211.41[航空宇航科学与技术—航空宇航推进理论与工程]