面向倾转旋翼机的TRC响应类型控制律设计

Design of TRC Response Type Control Law for Tiltrotor Aircraft

倾转旋翼机操纵的复杂性对其任务能力提出了较高要求,而设计响应类型可以大幅提高其任务执行能力,减轻飞行员操纵负担。本文设计了倾转旋翼机在直升机模式下的平移速率指令(TRC)响应类型控制律并进行了飞行品质的仿真验证。首先,建立了基于机理法的倾转旋翼机非线性飞行动力学模型,并进行了线性化处理;其次,根据有人直升机飞行品质要求,设计了直升机模式下的TRC响应类型控制律;最后,进行了飞行品质的仿真验证。仿真结果表明,设计的TRC响应类型满足相关品质规范要求,飞行品质达到等级1。通过本文研究,能够显著改善倾转旋翼机在悬停/低速飞行状态下的操纵品质和精确机动能力,减轻飞行员操纵负荷,提升任务执行能力,满足倾转旋翼机近地低速机动飞行需求。

The complexity of tiltrotor aircraft maneuvering puts forward high requirements for its mission capability,and designing response types can greatly improve its mission execution ability and reduce the driver's control burden.In this paper,the Translational Rate Command(TRC)response types control law of tiltrotor aircraft in helicopter mode is designed,and the flight quality simulation is verified.Firstly,a nonlinear flight dynamics model of tiltrotor based on mechanism method is established and linearized.Then,according to the flight quality requirements of manned helicopters,the TRC response type control law in helicopter mode is designed.Finally,the flight quality simulation was carried out.The simulation results show that the designed TRC response type meets the requirements of relevant quality specifications,and the flight quality reaches level 1.Through this paper study,the control quality and precise maneuverability of the tiltrotor aircraft in the hovering/low-speed flight state can be significantly improved,the pilot's control load can be reduced,the task execution ability can be improved,and the low-speed maneuvering flight needs of the tiltrotor aircraft can be significantly improved.