自转旋翼陆空车辆的性能仿真

发布时间：2018-01-04 13:09

本文关键词：自转旋翼陆空车辆的性能仿真　出处：《北京理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：自转旋翼式陆空车辆是同时具有陆上行驶功能以及空中飞行能力的多域机动平台,陆空车辆拥有跳飞和无动力时的被动安全降落以及野外作战等功能。这种陆地和空中两用的特殊车辆在反恐、巡逻、救援和运输等多个方面可以起到重要作用。本文结合动力指标和需求,从陆空车辆的总体参数设计,飞行动力学模型的建立,陆空车辆飞行性能的仿真分析和三维视景功能演示等四个部分展开研究工作。在总体设计部分,首先从需求出发,结合给定的战技指标,对比各种飞行方案,初定飞行方案,并对方案中的主要部件的有关参数进行计算。其中对旋翼机的飞行原理进行了介绍,并对主旋翼、螺旋桨、垂尾和平尾的参数选择进行了计算,最后完成了驱动部件的参数计算。针对陆空车辆进行动力学特性研究,建立陆空车辆飞行动力学模型,首先在不同坐标系下分别建立各个部件的模型,然后将各部件所产生的力和力矩转换到机体坐标系中进行合成,从而构成飞行数学模型。动力学模型的建立也是进行仿真、配平以及稳定性分析的基础。根据所建立的动力学模型,对陆空车辆的性能进行仿真预测。对模型进行配平分析,研究不同稳定前飞速度下各操纵量的变化,研究车辆各部件的升阻特性以及主旋翼的驱转、阻转特性。结合跳飞原理,仿真验证跳飞过程中跳飞高度和速度的变化情况。设计缩比样机的跳飞试验,将试验结果与理论计算作对比,验证仿真的准确性。利用Vehicle simulator这款飞行模拟软件对陆空车辆进行视景功能的演示。结合使用CATIA和3DS MAX这两款软件的建模和渲染功能建立了陆空车辆的3D模型,给定控制指令,在场景中完成车辆的演示。
[Abstract]:The rotation of the rotor type air vehicle is a multi domain mobile platform with land and air travel function flight capacity of the air vehicle has ricocheted and passive safety without power when landing and combat capabilities. This land and special vehicle air dual-use patrol on anti-terrorism, many aspects of rescue and transportation can play an important role. This combination of power index and demand, from the overall design parameters of air vehicle, a flight dynamics model and flight performance of air vehicle simulation and 3D scene demonstration function of four parts to develop research work. In the first part of the overall design, starting from the demand, according to the given tactical index, contrast a variety of flight plan, initial flight plan, calculate the relevant parameters and main components in the scheme. The flight of the rotorcraft principle are introduced, and the main rotor, Propeller, rudder and tailplane parameters were calculated, and finally completed the parameters of drive parts is calculated. This paper studies the dynamic characteristics of the air vehicle, air vehicle flight dynamics model is established, the first in different coordinate systems were established in various parts of the model, and then the force and torque components produced by the conversion to the body coordinate system in the synthesis, which constitute the flight dynamics model is established. The mathematical model is simulated, analyzed and trim stability. According to the dynamic model, performance of the air vehicle simulation prediction. Balancing analysis of the model, study the different stable flying speed under the control of the amount of change, lift and drag characteristics of research the various components of the vehicle and the main rotor drive, rotating characteristics. Combined with the principle of change of ricochet, jump height and simulation speed in the process of verification ricochetted . than ricochet test prototype shrinkage design, experimental results and theoretical calculation are compared, verifying the accuracy of simulation software. The visual function of air vehicle flight simulation demonstration using Vehicle simulator. The modeling and rendering functions combined with the use of CATIA and 3DS MAX of the two software 3D model is built and air vehicles. Given the control command, complete vehicle demonstration in the scene.

【学位授予单位】：北京理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TJ812;V271.4

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