直升机飞行数值仿真中尾桨动力学模型探讨

针对常规单旋翼带尾桨直升机，通过对尾桨挥舞运动方程，尾桨动力入流模型，旋翼和机身在尾桨处侧沅的分析与计算，探讨尾桨动力学模型中不同因素对于直升机整机直线飞行状态的配平和驾驶员纵输入动态响应数值仿真精度的影响程度，为不同目的飞行数据仿真中尾桨动力学模型选取提供参考，本文以ＵＨ－６０Ａ直升机的算例进行了对比分析。

Tail Rotor Dynamics Models in Flight Digital Simulation of Helicopter

For the current helicopter of single main rotor with tail rotor, tail rotor dynamics model, including tail rotor flap dynamics motion equations, tail rotor dynamics inflow model, lateral flow induced by main rotor and fuselage at tail, etc., were analyzed in this paper. Through calculation of models with different tail rotor dynamics model, the effect on helicopter trim at straight flight state and digital flight dynamic simulation to pilot's control input was discussed.The result could provide a useful reference to chose tail rotor dynamics model for different flight digital simulation. The sample of UH 60A Black Hawk helicopter was used for the calculation of trim flight dynamics simulation.