Degree of Freedom and Dynamic Analysis of the Multi-Loop Coupled Passive-Input Overconstrained Deployable Tetrahedral Mechanisms for Truss Antennas

doi:10.1115/1.4044729

	Degree of Freedom and Dynamic Analysis of the Multi-Loop Coupled Passive-Input Overconstrained Deployable Tetrahedral Mechanisms for Truss Antennas
	Xu, Yundou 1; Chen, Yang 1; Liu, Wenlan 3; Ma, Xiaofei 2; Yao, Jiantao 1; Zhao, Yongsheng 1
刊名	Journal of Mechanisms and Robotics
	2020-02-01
卷号	12 期号:1
关键词	Agricultural robots Antennas Springs (components) Torsional stress Trusses Coupled mechanisms Degree of freedom Degrees of freedom (DoFs) Dynamic equations Lagrange methods Over-constrained Overconstrained mechanism Torsion Springs
ISSN号	19424302
DOI	10.1115/1.4044729
英文摘要	Recently, the truss antennas with deployable tetrahedron unit mechanisms have been successfully applied in orbit, owing to the advantages of large calibers, high accuracy, and large folding ratios. As multiloop coupled mechanisms, deployable tetrahedral mechanisms have multiple different output links, whose supporting limbs connecting output links and the base are mutually coupled. These mechanisms are also called the passive-input overconstrained mechanisms because their passive torsion springs are used as drivers and because the number of the drivers contained is more than the degrees of freedom (DOFs). In this work, a method based on the equivalent concept of first link-removing and then restoring is proposed for the DOF analysis of the multiloop coupled deployable tetrahedral mechanisms. With one coupled chain removed, the equivalent serial chains between the coupled components and the base are established in the remainder of the mechanisms. Then, the coupled chain removed is restored and the equivalent of the multiloop coupled mechanisms is obtained. The Lagrange method is used to establish the dynamic equation of the passive-input overconstrained mechanisms; the influence of the stiffness and number of torsion springs on the unfolding motion is examined. © 2019 by ASME.
WOS研究方向	Engineering ; Robotics
语种	英语
出版者	American Society of Mechanical Engineers (ASME)
WOS记录号	WOS:000525398600010
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151056]
专题	能源与动力工程学院
作者单位	1.Parallel Robot and Mechatronic System Laboratory of Hebei Province, Key Laboratory of Advanced Forging and Stamping Technology and Science, Ministry of National Education, Yanshan University, Qinhuangdao; 006004, China; 2.Xi'An Branch of China Academy of Space Technology, Xi'an; 710100, China 3.College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Xu, Yundou,Chen, Yang,Liu, Wenlan,et al. Degree of Freedom and Dynamic Analysis of the Multi-Loop Coupled Passive-Input Overconstrained Deployable Tetrahedral Mechanisms for Truss Antennas[J]. Journal of Mechanisms and Robotics,2020,12(1).
APA	Xu, Yundou,Chen, Yang,Liu, Wenlan,Ma, Xiaofei,Yao, Jiantao,&Zhao, Yongsheng.(2020).Degree of Freedom and Dynamic Analysis of the Multi-Loop Coupled Passive-Input Overconstrained Deployable Tetrahedral Mechanisms for Truss Antennas.Journal of Mechanisms and Robotics,12(1).
MLA	Xu, Yundou,et al."Degree of Freedom and Dynamic Analysis of the Multi-Loop Coupled Passive-Input Overconstrained Deployable Tetrahedral Mechanisms for Truss Antennas".Journal of Mechanisms and Robotics 12.1(2020).