基于线性规划的直升机旋翼性能优化分析  

Optimization of Rotor Performance Based on Linear Programming

作　　者：蔡伟 曹金华 吴奎发 

机构地区：[1]中航工业昌河飞机工业集团公司,江西景德镇333002 [2]陆航驻景德镇地区代表室,江西景德镇333000

出　　处：《直升机技术》2011年第4期21-24,共4页Helicopter Technique

摘　　要：针对直升机的悬停飞行状态,建立了一个基于线性规划的旋翼性能优化分析模型。应用该分析模型,以四叶模型旋翼为算例,对优化前后桨叶扭转角和环量值的分布进行了对比,并讨论了它们之间的关系。计算结果表明,应用所建立的优化方法对旋翼几何参数进行优化,可在保持旋翼拉力不变的情况下,显著减小旋翼消耗的功率。An analytical model which could be used to optimize the rotor performance in hover was developed based on linear programming.By applying the analytical model developed,a comparison of the twist angle and circulation value before optimization and those after optimization was made for a 4-blade model rotor,and the combination of them was discussed.The results of the calculation showed that the power consumed is significantly reduced while the rotor thrust keeps unchanged after the rotor geometry parameters were optimized by using the method given in this paper.Furthermore,some conclusions were given in the end of this paper.

关 键 词：直升机 悬停 自由尾迹 旋翼性能 

分 类 号：V21[航空宇航科学与技术—航空宇航推进理论与工程]