倾转状态的旋翼尾迹形状和挥舞响应分析  

Analysis on Wake Geometries and Flapping Responses for Rotor in Tilting Flight

作　　者：李春华[1] 陈平剑[1] 赵小全[2] 段广战[1] 

机构地区：[1]中国直升机设计研究所,景德镇333001 [2]总参陆航部驻景德镇地区军事代表室,景德镇333002

出　　处：《直升机技术》2009年第2期14-19,共6页Helicopter Technique

摘　　要：本文推导了旋翼在倾转时的桨叶挥舞运动方程,给出了桨叶升力面模型和尾迹时间推进预测—校正算法,并结合涡核模型和旋翼配平分析模型,建立了一个时间推进旋翼自由涡计算方法。通过计算的旋翼诱导速度与实验值的对比,验证了本文方法的有效性。然后利用该方法,计算了旋翼在倾转时的尾迹几何形状畸变和桨叶挥舞响应特性。The blade flapping equation for rotor in tilting flight was derived.Blade lift-surfacing model,wake time-marching algorithm,vortex core model and trimming model were also given and combined into a new time-marching free vortex method for predicting rotor wake geometries and flapping responses.By the comparisons of calculated results with experimental results for numerical example on rotor induced velocities,the time-marching free vortex method was validated.Using the present method,the distortion characteri...

关 键 词：倾转旋翼 倾转 挥舞 自由尾迹 

分 类 号：V211.52[航空宇航科学与技术—航空宇航推进理论与工程]