双矢量推力旋翼机建模与操纵特性分析

Modeling and Maneuvering Characteristic Analysis on Gyroplane with Dual-vector Thrust

随着部队的急难险重任务的日益增多,任务载荷功能与质量逐渐增长,导致事发地应急通信组网难以有效展开。常规自转旋翼机的巡航速度低且机动性差,在军用和民用领域均受到限制,故无法满足急难险重任务下的指挥控制无人机通信组网要求。为了解决上述问题,采用了具备结构简单、机动性强、巡航速度快及超短距离起飞等特性的双矢量推进旋翼机。为了对该旋翼机进行有效控制并提高其飞行性能,分析了该旋翼机的特点,建立了该旋翼机的操纵特性非线性数学模型,并从工程应用出发,通过吹风试验获取了机体模型参数拟合曲线。最后,通过数字仿真分析了机体操纵响应特性,验证了该数学模型的正确性与真实性。

With the increase of urgent,difficult,dangerous and heavy tasks of troops,the function and quality of mission load are increasing gradually,which leads to the difficulty of effective deployment to emergency communication network in the accident site.Due to the low cruise speed and poor maneuverability of the conventional gyroplane,it is restricted in both military and civilian fields,so it cannot meet the requirements of command and control communication networking with the unmanned aerial vehicle under the urgent,difficult,dangerous and heavy tasks.To solve the above problems,the dual-vector thrust gyroplane with the characteristics of simple structure,strong maneuverability,fast cruise speed and ultra-short takeoff is adopted.In order to effectively control the gyroplane and improve its flight performance,the gyroplane characteristics are analyzed,a nonlinear mathematical model of the gyroplane maneuvering characteristic is set up.From the view of engineering application,the fitting curve of body model parameters is obtained through the blow test.Finally,the response characteristics of body control are analyzed by the digital simulation,and the correctness and authenticity of this mathematical model are verified.