摘要
旋翼自由尾迹模型的建模和桨叶动态响应计算的问题是直升机空气动力学领域中富有关键意义的课题。本文结合桨叶气动模型、旋翼涡尾迹模型、桨叶挥舞动力学模型、"PC2B"尾迹求解算法和旋翼配平模型,建立了一个时间精确的旋翼自由尾迹和桨叶动态气动响应的分析方法,并针对旋翼总距突增时的旋翼载荷和桨叶动态响应进行了计算和分析,得出了一些有意义的结果。
The aerodynamic problem on modeling helicopter rotor free wake and calculating rotor blade dynamic response is a key subject in the field of helicopter aerodynamics.In this thesis,based on a blade aerodynamic model,a free-vortex model,a flapping dynamic model,a PC2B algorithm and a rotor trim model,a time-accurate free-wake analytical method for rotors has been established,and the load and flapping response of the rotor with the abrupt increase of rotor collective pitch have been calculated and analyzed by ...
出处
《直升机技术》
2009年第1期12-16,共5页
Helicopter Technique
