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A Multibody Model of Tilt-Rotor Aircraft Based on Kane's Method

机译：基于凯恩方法的俯仰旋翼飞机多体模型

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摘要

A tilt-rotor aircraft can switch between two flight configurations (the helicopter configuration and the fixed-wing plane configuration) by tilting its rotors. In the process of rotor tilting, the nacelles which drive the rotors tilt together with the rotors. Because the mass of the nacelles cannot be ignored compared to the mass of the whole aircraft, the tilting of the nacelles is a coupling motion of the body and the nacelles. In order to better character the aircraft dynamics during the nacelle tilting, a multibody model is established in this paper. In this multibody model, Kane's method is used to build a dynamic model of a tilt-rotor aircraft. The generalized rates are used to describe the movement of the body and the nacelles (with rotors). The generalized active forces and generalized inertial forces of both the body and the nacelles (with rotors) are obtained, respectively, and the first-order differential equations of the generalized rates are obtained. The longitudinal trim of the XV-15 aircraft is calculated according to the single-body model and our multibody model, in this paper, and the results verify the correctness of the multibody model. In the process of nacelle inclination angle command tracking, the multibody model can provide more information about the disturbance torque of the nacelle than the single-body model, and model inversion control based on the proposed multibody model can obtain a better tracking result than a PID control method only using nacelle angle feedback information.
机译：倾斜旋翼飞机可以通过倾斜其旋翼在两种飞行配置（直升机配置和固定翼飞机配置）之间切换。在转子倾斜的过程中，驱动转子的机舱与转子一起倾斜。由于与整个飞机的质量相比，机舱的质量不可忽略，因此机舱的倾斜是机体与机舱的耦合运动。为了更好地表征机舱倾斜期间的飞机动力学特性，本文建立了多体模型。在此多体模型中，凯恩（Kane）方法用于建立倾斜旋翼飞机的动力学模型。广义速率用于描述车身和机舱（带有转子）的运动。分别获得了机体和机舱（带转子）的广义作用力和广义惯性力，并获得了广义速率的一阶微分方程。本文根据单体模型和我们的多体模型计算了XV-15飞机的纵向纵倾，结果验证了多体模型的正确性。在机舱倾斜角命令跟踪过程中，多体模型比单体模型可以提供更多有关机舱扰动扭矩的信息，并且基于所提出的多体模型的模型反转控制可以获得比PID更好的跟踪结果控制方法仅使用机舱角度反馈信息。

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  • 来源
    《International journal of aerospace engineering》 |2019年第2期|9396352.1-9396352.10|共10页
  • 作者

    Su Jianmin; Su Chengyue; Xu Sheng; Yang Xiaoxing;

  • 作者单位

    Guangdong Univ Technol, Sch Phys & Optoelect Engn, 100 West Ring Rd, Guangzhou 510006, Guangdong, Peoples R China;

    Guangdong Univ Technol, Sch Phys & Optoelect Engn, 100 West Ring Rd, Guangzhou 510006, Guangdong, Peoples R China;

    Guangdong Univ Technol, Sch Phys & Optoelect Engn, 100 West Ring Rd, Guangzhou 510006, Guangdong, Peoples R China;

    Sun Yat Sen Univ, Sch Data & Comp Sci, 132 Outer Ring Rd East, Guangzhou 510006, Guangdong, Peoples R China;

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