首页|基于空间RRRRRR机构的仿生扑翼驱动机构优化设计与分析

基于空间RRRRRR机构的仿生扑翼驱动机构优化设计与分析

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为了让仿生扑翼飞行器飞行时能够输出同生物飞行时相同的空间"8"字型运动轨迹,从而提高仿生扑翼飞行器的飞行性能,文中借鉴了昆虫飞行运动特征,设计了一种基于空间RRRRRR机构的新型扑翼驱动机构.首先,通过运动学分析,建立了扑翼飞行器空间RRRRRR扑翼驱动机构的运动学分析模型,对其进行了运动学分析.然后,根据生物飞行翅翼运动特点,以扑翼驱动机构输出角为目标函数,建立了扑翼飞行器驱动机构优化模型对驱动机构进行优化设计,得到了利于飞行器扑翼飞行的驱动机构参数.最后,根据优化后的扑翼飞行器驱动机构的尺寸参数,建立了仿昆虫微型扑翼飞行器驱动机构的三维模型,并在ADAMS软件中进行仿真,得到了驱动机构的输出轨迹和运动参数,验证了理论分析的正确性.结果表明:通过优化设计得到的扑翼驱动机构能够实现扑动-扭转运动,其中扑翼驱动机构输出上扑动角,βmax为34.80°、下扑动角,βmin为-29.16°;输出扭转角范围为-14.88°~15.04°;输出的空间"8"字型轨迹与昆虫飞行的翼尖运动轨迹相同,为仿生扑翼飞行器的设计提供了理论基础.
Optimization Design and Analysis of Bionic Flapping Wing Driving Mechanism Based on Space RRRRRR Mechanism
In order to improve the flight performance of the bionic flapping wing aircraft by outputting the same spatial"8"trajectory as that of the biological flying,so as to improve the flight performance of the bionic flapping wing aircraft,a new flapping wing driving mechanism based on the space RRRRRR mechanism was designed based on the flight motion characteristics of insects.Firstly,through the kinematic analysis,the kinematic analysis model of the space RRRRRR flapping wing drive mechanism of the flapping wing aircraft was established.Then,according to the characteristics of the movement of the biological flight wing,a mechanism optimization model was established to optimize the design of the driving mechanism,and the mechanism parameters that were conducive to the flapping wing flight of the aircraft were obtained.Finally,according to the optimized size parameters,a three-dimensional model of the insect-like miniature flapping wing aircraft was established,and the output motion of the driving mechanism was obtained in the ADAMS software,which verified the correctness of the theoretical analysis.The results show that the flapping wing drive mechanism obtained by the optimized design can realize the flutter-torsional motion,and the output upper flutter angle of the flapping wing drive mechanism is 34.80° and the lower flutter angle is-29.16°.The output torsion angle ranges from-14.88°~15.04°;the output spatial"figure 8"trajectory is the same as the wingtip trajectory of insect flight.

ornithopterRRRRRRkinematics analysisoptimization designADAMS

吴华兵、张瑞坤、何畏、曾小义、杨海燕

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重庆电力高等专科学校 智能工程学院,重庆 400043

西南石油大学 机电工程学院,成都 610500

扑翼飞行器 RRRRRR 运动学分析 优化设计 ADAMS

2024

机械设计与研究
上海交通大学

机械设计与研究

CSTPCD北大核心
影响因子:0.531
ISSN:1006-2343
年,卷(期):2024.40(6)