Development of the flight dynamics model (FDM) for coaxial rotary-wing UAV simulation

同轴旋翼无人机仿真飞行动力学模型（FDM）的开发

• 批准号: 515305-2017
• 负责人: Chung, Joon
• 金额: $ 1.82万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640004
• 关键词: Development; flight; dynamics; model; FDM

The main objective of the proposed research project is the development of the FDM and flight simulation forAirvinci's rotorcraft. It consists of the three main components: The first component is the development of FDMfor rotor motions. Wind tunnel and flight tests are beyond the scope of this project. For this reason, this projectwill employ the numerical methods such as the blade-element formulation, Pitt-Peters dynamics inflow model,and powertrain model. These methods are generally utilized to develop the rotorcraft FDM. The blade-elementformulation subdivides each rotor into segments, and the local airspeed and angle of attack are determined foreach element. Then these results are used to determine the aerodynamic forces of the main rotor. ThePitt-Peters dynamic inflow model will determine the total airflow of the rotorcraft and the powertrain modelwith engine dynamics model will determine the rotor rotational speed. The second component is thedevelopment of FDM for the fuselage and control surfaces. The rigid-body 6 Degree-of-Freedom (DOF)equations and aerodynamics models will be employed to develop the dynamic model of the fuselage andcontrol surfaces. The Center of Gravity (CG) location will be derived from the geometry and materials.Aerodynamics forces and moments for the fuselage and control surfaces will be determined from numericalequations. The third component is the implementation of mathematical models of the rotorcraft into JSBSim.The FDM is then combined with FlightGear to develop the dedicated simulation of the Airvinci's rotorcraft andits performance over a range of environments. The development of visual simulation entails 3D models of therotorcraft to be used with Blender (www.blender.org) which is an open source 3D modeling software. Blenderis compatible with FlightGear and it can import and export various types of 3D models. The developed FDMwill be updated from the feedback of the flight test on the developed simulation.

拟议的研究项目的主要目标是发展的FDM和飞行模拟为Airvinci的旋翼机。它由三个主要部分组成：第一部分是转子运动的FDM的发展。风洞试验和飞行试验不在本项目范围内。为此，本计画采用数值方法，例如叶素公式、Pitt-Peters动态入流模型和动力系统模型。这些方法通常用于开发旋翼机FDM。叶素公式将每个旋翼细分为若干段，并确定每个叶素的局部空速和攻角。然后利用这些结果来确定主旋翼的气动力。Pitt-Peters动态入流模型将确定旋翼机的总气流，动力系统模型和发动机动力学模型将确定旋翼转速。第二个组成部分是机身和操纵面的FDM的发展。采用刚体六自由度方程和空气动力学模型建立机身和操纵面的动力学模型。重心（CG）的位置将从几何形状和材料中推导出来。机身和操纵面的气动力和力矩将从数值方程中确定。第三部分是将旋翼机的数学模型应用到JSBSim中。然后将FDM与FlightGear结合起来，开发Airvinci旋翼机及其在各种环境下的性能的专用仿真。可视化仿真的开发需要使用Blender（www.blender.org）的3D模型，Blender是一个开源的3D建模软件。Blender与FlightGear兼容，可以导入和导出各种类型的3D模型。所开发的FDM将根据飞行试验对所开发的模拟的反馈进行更新。