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Control System Design of Tilt Rotor Unmanned Aerial Vehicle (UAV)

机译:俯仰旋翼无人机控制系统设计

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摘要

Unmanned Aerial Vehicles (UAVs) are those flying aircrafts that run without any humans being onboard. They are controlled either by an onboard computer or remote controllers. Utilizing UAVs for intelligence, surveillance, and reconnaissance (ISR) is beneficial in both military and civil applications. The various usages of these kinds of aircrafts are in different military missions such as battle damage assessment, communications relay, minesweeping, hazardous substances detection. However they can be used in other than military missions like monitoring the deployment of ballistics and projectiles while testing and locating there fall of shot. Aircrafts that are able of hovering and vertical flying can be used for this type of specific assignment. Having vertical take-off and landing (VTOL) capabilities and fast gliding provisions, tiltrotor aircraft is a very handy model which is perfectly compatible for many applications, which a nominal RC glider or a hovering helicopter may not perform efficiently. Combining the property of fast gliding of RC gliders and stable hovering capabilities of RC helicopter/quad copter, the tiltrotor mechanism works satisfactorily in spite of its complex flight dynamics. This mechanism presents a challenge for flight control designers and handling qualities engineers. Achieving consistent handling qualities and dynamic stability throughout an operational flight envelope is difficult since the aircraft’s flight dynamics change significantly at different operating conditions (e.g. speed, attitudes, etc.) and configurations (e.g. helicopter mode, conversion mode or airplane mode). The requirement to meet both helicopter and fixed wing flying qualities specifications always results in substantial cost and time. Development of integrated methods for flight control design and handling qualities analysis could greatly enhance the future of tiltrotor aircraft and can widen the sphere of UAV applications.
机译:无人飞行器(UAV)是指那些没有任何人员在机上飞行的飞行器。它们由车载计算机或遥控器控制。将无人机用于情报,监视和侦察(ISR)在军事和民用应用中都是有益的。这些飞机的各种用途用于不同的军事任务,例如战斗损失评估,通信中继,扫雷,有害物质检测。但是,它们可以用于军事任务以外的其他用途,例如在测试和确定射击位置时监视弹道和弹丸的部署。能够悬停和垂直飞行的飞机可用于此类特定任务。倾转旋翼飞机具有垂直起降(VTOL)功能和快速滑行功能,是一款非常方便的机型,可完美兼容许多应用,而标称RC滑翔机或悬停直升机可能无法有效执行。结合遥控滑翔机的快速滑行特性和遥控直升机/四轴直升机的稳定悬停能力,尽管俯仰旋翼机构具有复杂的飞行动力学,但仍能令人满意地工作。这种机制对飞行控制设计师和操作质量工程师提出了挑战。由于飞机的飞行动力学会在不同的运行条件(例如速度,姿态等)和配置(例如直升机模式,转换模式或飞机模式)下发生显着变化,因此很难在整个飞行包线中实现一致的操作质量和动态稳定性。满足直升机和固定翼飞行质量规格的要求总是导致大量的成本和时间。开发用于飞行控制设计和处理质量分析的集成方法可以极大地改善倾转旋翼飞机的未来,并可以扩大无人机的应用范围。

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    Mahapatra Debabrata;

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