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首页> 外文期刊>Journal of Aircraft >Analysis of Classical and Alternate Hexacopter Configurations with Single Rotor Failure
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Analysis of Classical and Alternate Hexacopter Configurations with Single Rotor Failure

机译：具有单转子故障的经典直升机和备用直升机的配置分析

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摘要

This study examines hexacopter performance in hover and forward flight with single rotor failure. A classical configuration (adjacent rotors spinning in opposite directions) and an alternate configuration are considered. The simulation model uses calculates rotor forces and moments by using blade element theory coupled with a finite-state dynamic inflow model. For the alternate hexacopter, if one of four rotors (out of six) fails, trim is possible in hover and forward flight, and the aircraft remains fully controllable. Recovery from the failure of one of the other two rotors is impossible. For the classical hexacopter, if any of the forward-facing rotors fail, the aircraft can be trimmed in forward flight and is fully controllable. If an aft rotor fails, trim is not possible but the aircraft could be turned around to orient the failed rotor forward. Although the classical hexacopter can be trimmed in hover by turning off the rotor diametrically opposite to the failed rotor, the aircraft is not independently controllable about all axes. In the event of a rotor failure, the classical hexacopter could cruise and land, but it cannot maintain a sustained hover. Power penalties of up to 23% are observed in the event of failure due to increased drag on the operational rotors.
机译：这项研究检查了六旋翼在单桨转子故障时的悬停和前飞性能。考虑了经典配置（相邻的转子朝相反方向旋转）和其他配置。该仿真模型通过结合叶片有限元理论和有限状态动态流入模型来计算转子力和力矩。对于备用六轴飞行器，如果四个旋翼之一（六个旋翼中的一个）发生故障，则可以在悬停和向前飞行中进行微调，并且飞机仍可完全控制。从另外两个转子之一的故障中恢复是不可能的。对于传统的六轴飞行器，如果任何前向旋翼发生故障，飞机可以在向前飞行时进行修整，并且是完全可控的。如果后旋翼发生故障，则无法进行修整，但可以转弯飞机以使发生故障的旋翼向前定位。尽管可以通过关闭与故障旋翼完全相反的旋翼来在悬停时调整经典六轴飞行器，但并非可以围绕所有轴独立控制飞机。万一旋翼发生故障，传统的六旋翼飞机可以巡航和降落，但不能保持持续的悬停。如果由于运行转子的阻力增加而导致故障，则功率损失最高可达23％。

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  • 来源
    《Journal of Aircraft》 |2018年第6期|2372-2379|共8页
  • 作者

    McKay Michael E.; Niemiec Robert; Gandhi Farhan;

  • 作者单位

    Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Troy, NY 12180 USA;

    Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Aerosp Engn, Troy, NY 12180 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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