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首页> 外文期刊>International journal of micro air vehicles >Design, development, and flight testing of a high endurance micro quadrotor helicopter
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Design, development, and flight testing of a high endurance micro quadrotor helicopter

机译：高耐力微型四旋翼直升机的设计，开发和飞行测试

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摘要

This paper describes the experimental design studies conducted to maximize the hover endurance of a micro air vehicle-scale quadrotor helicopter (gross weight< 50 g) by careful design and selection of the individual subsystems while understanding their interdependencies. The different subsystems of the quadrotor that were examined include the rotors, motors, electronic speed controllers, gear transmission systems, battery, and airframe structure. An optimized micro air vehicle-scale rotor with a diameter of 110mm and a figure of merit of 0.67 served as the basis for the vehicle design. Brushed and brushless motor systems were paired with the optimized rotor and were examined for maximum system level efficiency and capability to produce the required thrust. Propulsion systems using brushed motors with speed controllers and the optimum gear ratio showed up to 35% improvement in efficiency over brushless outrunner motors with speed controllers. Lithium-ion polymer batteries were compared and evaluated on voltage drop-off characteristics and achievable endurance versus weight. Quadrotor airframe weight has been minimized to 7.4% of the gross weight, representing a 30-50% decrease compared existing similarly sized quadrotors. The highest endurance was obtained using brushed motors with a 5.33:1 gear ratio and a 650 mAh battery. Presently, the longest continuous hover endurance achieved with this design is 31 min.
机译：本文介绍了通过仔细设计和选择各个子系统，同时了解它们之间的相互依赖性，从而使微型航空器级四旋翼直升机（毛重<50 g）的悬停耐久性达到最大的实验设计研究。检查了四旋翼飞机的不同子系统，包括转子，电动机，电子速度控制器，齿轮传动系统，电池和机身结构。直径为110毫米，品质因数为0.67的优化微型航空汽车比例转子是飞机设计的基础。有刷和无刷电机系统与优化的转子配对，并检查了系统的最大效率和产生所需推力的能力。与带速度控制器的无刷外伸电动机相比，采用带速度控制器的有刷电动机和最佳齿轮比的推进系统效率提高了35％。对锂离子聚合物电池进行了比较，并评估了电压下降特性以及可达到的续航能力与重量的关系。四旋翼飞机的机身重量已最小化至总重量的7.4％，与现有的类似尺寸的四旋翼飞机相比，降低了30-50％。使用齿轮传动比为5.33：1的有刷电机和650 mAh电池可获得最高的耐用性。目前，此设计实现的最长连续悬停耐力为31分钟。

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