摘要
对现有空间连杆机构进行分析改进,提出了一种6R对称布置的具有两自由度的空间扑翼机构。首先,通过对6R空间扑翼机构理论计算和仿真分析,得到了不同杆长对翼尖"8"字形轨迹的影响规律。然后,提出通过调整扑翼平均上反角来提高飞行平稳性的方法。最后,采用Adams对本文设计的机构进行仿真分析,结果表明所设计的空间扑翼机构传动流畅平稳,并满足扑动角和扭转角相位相差90°。
In this paper, by analyzing and improving the existing spatial linkage mechanism, a kind of 6R symmetric spatial flapping mechanism with two degrees of freedom is proposed for flapping-wing air vehicle. Firstly, through the theoretical calculation and simulation analysis of 6R spatial flapping-wing mechanism, the effect of different pole lengths on the ＂ 8＂ shape trajectory of wingtip is obtained. Then, a design method is proposed to improve the flight stability by adjusting the average dihedral angle of flapping-wing. The proposed mechanism is simulated by Adams software and the results show that the design of spatial flapping-wing mechanism is robust and steady, and the requirement of 90° phase difference between flapping angle and torsion angle is met.
出处
《机械科学与技术》
CSCD
北大核心
2018年第2期206-210,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(51505347)资助
关键词
空间扑翼机构
翼尖轨迹
上反角
相位差
spatial flapping-wing mechanism
trajectory of wingtip
dihedral angle
phase difference
