倾转旋翼机模拟平台建模与仿真

建立倾转旋翼机数学模型是设计其合理的飞行控制律的基础。通过分析模拟平台的运动特点,运用L agrange动力学方法对倾转旋翼机模拟平台进行建模。实验结果表明,模型有效地反映了倾转旋翼机的短舱在倾转过程中,短舱倾转角与飞机姿态之间的动态关系。由于平台的纵向、横向运动、短舱倾转之间存在很强的交叉耦合特性;另外,该平台是一个高阶非线性系统,在一定程度上像倾转旋翼机,为更进一步研究倾转旋翼机提供了很好的实验平台。

Modeling of a tilt rotor aircraft platform

A complete tilt rotor aircraft flight control model was developed to enable design of tilt rotor aircraft.The platform movement characteristics were defined using the Lagrange dynamic's method.Experiment results using a flight control platform show that the model accurately reflects the dynamic relationships between the nacelles tilting angle and the aircraft attitude.The platform behavior is described by a higher-order nonlinear system with significant cross-coupling between the longitudinal and latitudinal directional motions and the tilt rotor nacelles rolling movement.The platform is quite simple,relatively unexpensive,and very safe,so it provides an excellent experimental platform for research on tilt rotor aircraft.