摘要
为了提高扑翼飞行器的飞行性能,借鉴中小型鸟类的飞行运动特征,设计了一种基于空间连杆机构的新型多自由度扑翼机构。首先,通过运动学分析建立了扑翼飞行器驱动机构的运动学模型;然后,在Adams仿真软件中建立了扑翼机构仿真分析模型,对理论分析进行了验证。结果表明,所设计的驱动机构通过单自由度驱动就能够实现扑动、扭转、偏转多个自由度耦合运动。其中,上扑动极限为34.65°、下扑动极限为-29.66°,最大扭转角为15.05°,最小扭转角为-14.9°,偏转角范围为-5.01°~5.21°;输出的“8”字形轨迹与中小型鸟类飞行时的翼尖轨迹相同,具有良好的气动性能。仿真得到的运动学参数与理论计算一致,验证了理论计算的正确性。
In order to improve the flight performance of flapping wing aircrafts,a multi-DOF flapping wing mechanism based on space four-bar mechanism is designed by referring to the flight motion characteristics of small and medium-sized birds.Firstly,a kinematic model of the flapping wing driving mechanism is established through kinematic analysis.Then,a simulation model of the flapping wing mechanism is established in Adams to verify the theoretical analysis.The results show that,the design of a driving mechanism with single degree-of-freedom drive can realize the flutter,torsion,deflection multi-degree-of-freedom coupling movement,and the upper flutter limit is 34.65°,the lower flutter limit is-29.66°,the maximum torsion angle is 15.05°,the minimum torsion angle is-14.9°,the deflection angle range is-5.01°~5.21°;the track wich an"8"word output is the same as that of flying wing tips of small and medium-sized birds,which shows a good aerodynamic performance.The kinematic parameters obtained by simulation are in agreement with the theoretical calculation,which verifies the correctness of the theoretical calculation.
作者
王望
庞晓旭
Wang wang;Pang Xiaoxu(Department of mechanical engineering,Shanxi Institute of Mechanical and Electrical Engineering,Changzhi 046011,China;College of Mechanical and Electrical Engineering,Henan University of Science and Technology,Luoyang 471003,China)
出处
《机械传动》
北大核心
2022年第6期78-83,101,共7页
Journal of Mechanical Transmission
基金
河南省重点研发与推广专项(科技攻关)(202102210083)
山西省教育科学“十三五”规划2020年度“互联网+教育”专项(HLW—20193)。
关键词
扑翼飞行器
多自由度
驱动机构
运动学分析
ADAMS
Flapping wing aircrafts
Multi-degree-of-freedom
Driving mechanism
Kinematic analysis
Adams
作者简介
王望(1986-),男,山西长治人,工学硕士,讲师,研究方向为机械设计。
