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首页> 外文期刊>Journal of the American Helicopter Society >Design, Development, and Testing of a Shrouded Single-Rotor Micro Air Vehicle with Antitorque Vanes
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Design, Development, and Testing of a Shrouded Single-Rotor Micro Air Vehicle with Antitorque Vanes

机译：带有反扭矩叶片的带罩单转子微型飞行器的设计，开发和测试

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摘要

Rotary-wing micro air vehicles (MAVs) operate at low Reynolds number flows and have poor hover aerodynamic efficiency. In this paper, the design and testing of a shrouded single-rotor MAV for improved hover efficiency and payload capability is described. The vehicle consists of a single fixed-pitch, two-bladed rotor with axisymmetric vanes placed in the rotor downwash to counter the rotor torque and improve vehicle compactness. Comparison in hover performance of the two-bladed rotor with and without the shroud indicated that the shrouded rotor had a 40% improvement in power loading and a payload benefit of up to 11 % of the vehicle weight after taking the weight of the shroud into consideration. A hingeless rotor was found to be suitable for incorporation in the shroud. To eliminate possible cross-coupling in pitch and roll, the Hiller bar was suitably phased with respect to blade pitching axis. The final shrouded rotor vehicle was built weighing 257 g. It was flown in hover demonstrating good maneuverability. The feasibility of improved power loading of a rotary-wing MAV through the shrouded rotor concept was successfully demonstrated.
机译：旋翼微型飞行器（MAV）在低雷诺数流量下运行，并且悬停空气动力学效率较差。在本文中，描述了带罩的单转子MAV的设计和测试，以提高悬停效率和有效载荷能力。该车辆包括一个固定螺距的两叶片转子，轴对称叶片置于转子向下冲洗器中，以抵消转子扭矩并提高车辆的紧凑性。比较带和不带护罩的两叶转子的悬停性能，表明在考虑了护罩的重量后，带罩转子的动力负载提高了40％，有效载荷收益高达车辆重量的11％ 。发现无铰链的转子适合于结合在护罩中。为了消除俯仰和横滚之间可能的交叉耦合，相对于叶片俯仰轴，适当地调整了Hiller杆的相位。最终的带罩转子车辆的重量为257 g。它在飞行中表现出良好的机动性。通过带罩转子概念成功证明了改进旋翼MAV动力负载的可行性。

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