倾转旋翼飞行器飞行力学建模及验证分析

Flight dynamics modeling and validation for tilt-rotor aircraft

为了进一步提高倾转旋翼飞行器的建模精度,考虑旋翼挥舞运动、采用有限状态尾迹模型描述旋翼诱导速度,进而建立旋翼气动力数学模型;考虑旋翼/机翼/干扰,建立相应气动力数学模型;针对倾转旋翼飞行器操纵冗余问题,建立了适用于全模态的操纵策略数学模型。最后以通用倾转旋翼飞行器数学模型和飞行试验数据,对建立的数学模型进行验证。仿真结果表明建立的飞行动力学模型具有良好的精度,适用于飞行动力学其他问题的分析研究。

In order to improve the modeling precision of the tilt-rotor aircraft, the rotor aerodynamm iorce calculation model is established by using a finite-state wake model and considering the rotor flapping motion. Considered the effect of the rotor wake on the wing, a wing aerodynamic model is established. For the problem of control redundancy, a mathematical control strategy model is established for the whole flight modes. Finally, the model is verified by the generic tilt-rotor aircraft simulation （GTRS） model and flight test data. The simula- tion results show that the flight dynamics model has good precision and is suitable for analysis of other problems of flight dynamics.