电控旋翼直升机配平及操纵特点分析

对采用电控旋翼直升机的配平及操纵特性进行了研究。首先根据电控旋翼的刚体桨叶变距运动方程，推导了襟翼操纵量与桨叶桨距的显式关系式。以此为基础，建立了电控旋翼直升机的飞行动力学模型。以WZ-1直升机为样例直升机，对比分析了电控旋翼直升机与常规直升机的配平特性和操纵响应特性。结果表明，电控旋翼直升机具有与常规直升机类似的配平和操纵特性，桨叶预安装角和桨根扭簧刚度这两个参数对其影响显著。

Analysis of the Trim and Control Characters of the Helicopter with the Electrical Controlled Rotor

Research on the trim and control characters of the helicopter was conducted, which featured with the electrical controlled rotor(ECR). First, relationship between flap input and blade pitch was deduced based on the pitch kinetic equation of rigid blade. Then the flight dynamics model of the ECR helicopter was constructed. Taking the WZ-1 as the example helicopter, the trim and control response were calculated, and comparison between the ECR helicopter and the normal one was done. The analysis results showed that the ECR helicopter had good trim and control characters, and pre-index angle and blade root spring stiffness had distinct effect.