Double-Layer Deployable Mechanical Network Constructed of Threefold-Symmetric Bricard Linkages and Sarrus Linkages

Author:

Song Xiaoke12,Guo Hongwei3,Chen Jingjing2,Yuan Wenhui2,Xu Younan4

Affiliation:

1. National Local Joint Engineering Research Center of Safety Guarantee Technology for Operation and Maintenance of Rail Transport Infrastructure, East China Jiaotong University, Nanchang 330013, China;

2. State Key Laboratory of Heavy Duty AC Drive Electric Locomotive Systems Integration, CRRC Zhuzhou Electric Locomotive Co. Ltd., Zhuzhou 412001, China

3. State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China

4. School of Mechatronics and Vehicle Engineering, East China Jiaotong University, Nanchang 330013, China

Abstract

Abstract Threefold-symmetric (TFS) Bricard linkages are known for their excellent deployment performance properties. This paper proposes a novel networking method of TFS Bricard linkages and a double-layer mechanical network. First, the angle relationship for parts of the TFS Bricard linkage is analyzed. Then, the angle relationship of two TFS Bricard linkages connected by a scissor mechanism is studied. The result suggests that when the twist angles of the two TFS Bricard linkages are equal, their corresponding planes are parallel, and the link lengths have no effect on the parallel relationship. A novel networking method of the TFS Bricard linkage is recommended according to these results. This mechanical network is constructed of two different sized units and can be plane deployed and be folded with a smaller height. We also propose a hybrid linkage constructed of the TFS Bricard linkage and Sarrus linkage. Two kinds of double-layer mechanical networks are suggested by applying the hybrid linkage to a smaller unit in the mechanical network and using the hybrid linkage as the interlayer pillar. The new networking method and the double-layer mechanical network provide convenience for the TFS Bricard linkage's engineering application.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Jiangxi Province

Publisher

ASME International

Subject

Mechanical Engineering

Reference19 articles.

1. Advances in Deployable Structures and Surfaces for Large Apertures in Space;Santiago-Prowald;CEAS Space J.,2013

2. Closed-Loop Deployable Structures;Gan,2003

3. Numerical Approach to the Kinematic Analysis of Deployable Structures Forming a Closed Loop;Gan;Proc. Inst. Mech. Eng., Part C,2006

4. Deployable Structures Based on the Bricard Linkages;Chen,2004

5. Threefold-Symmetric Bricard Linkages for Deployable Structures;Chen;Int. J. Solids Struct.,2005

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