倾转旋翼机模拟平台建模与仿真

来源 :清华大学学报(自然科学版) | 被引量 : 0次 | 上传用户:eyx001
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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。 Establishing a mathematical model of tilting rotorcraft is the basis of designing its reasonable flight control law. By analyzing the movement characteristics of the simulation platform, the L agrange dynamics method is used to model the tilting rotorcraft simulation platform. The experimental results show that the model effectively reflects the dynamic relationship between the nacelle tilt angle and the attitude of the aircraft during tilting of the rotor of the tilting rotorcraft. Due to the longitudinal and transverse movement of the platform, there is a strong cross-coupling between nacelle dumping. In addition, the platform is a high-order nonlinear system that tilts rotorcraft to some extent, Gyroplane provides a good experimental platform.
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