某型倾转旋翼机的旋翼桨叶气动优化设计  

Aerodynamic Optimization Design of the Rotor Blade of a Tilt-rotor Aircraft

作　　者：孙凯军[1] 张练 付义伟[1] 于悦洋 Sun Kaijun;Zhang Lian;Fu Yiwei;Yu Yueyang(Caihong UAV Technology Limited Company,China Academy of Aerospace Aerodynamics,Beijing 100074,China)

机构地区：[1]中国航天空气动力技术研究院彩虹无人机科技有限公司

出　　处：《航空工程进展》2019年第3期340-347,共8页Advances in Aeronautical Science and Engineering

摘　　要：倾转旋翼机的旋翼气动外形设计需要对其直升机模式和固定翼模式下的不同要求进行综合考虑。通过基于Kriging模型的多目标遗传算法建立一套适用于倾转旋翼桨叶气动外形优化设计方法,采用拉丁超立方抽样试验设计方法得到样本点,并建立Kriging模型替代费时的流动数值模拟。以最大化旋翼地面悬停拉力和高空巡航效率为目标,以地面悬停功率不增和巡航拉力不减为约束条件,进行倾转旋翼桨叶平面形状优化设计,并经过非定常数值模拟和风洞试验验证。结果表明:数值模拟结果和风洞试验结果吻合良好,优化结果满足设计指标。The aerodynamic design of tilt-rotor needs to synthetically consider the different requirements in helicopter mode and fixed-wing aircraft mode.The multi-objective genetic algorithm based on Kriging surrogate model is used to establish an optimization design methods for aerodynamic shape of tilt-rotor,the Latin hypercube sampling method is employed to generate the initial sample points,and the Kriging surrogate model is built to replace the numerical simulation of flow.The objective function of optimization is maximum hovering thrust and cruising efficiency,the plane shape optimization design of tilt-rotor rotor blade is performed with the constraints of non-increasing hovering power and non-decreasing cruising thrust,and verified with unsteady numerical simulation and wind tunnel test.The results show that the numerical simulation results are in accord with wind tunnel test results,and the optimization results can satisfy the design indicator.

关 键 词：倾转旋翼 嵌套网格 N-S方程 非定常数值模拟 Kriging模型 优化设计 风洞试验 

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]