Journal of Mechanical Engineering >

2018 , Vol. 54 >Issue 5: 62 - 73

DOI: https://doi.org/10.3901/JME.2018.05.062

Design of a 1-DOF Symmetrical Deployable Coupled Mechanism

  • GAO Huifang ,
  • LIU Jingfang ,
  • YU Yueqing
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  • College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124

Received date: 2016-09-27

  Revised date: 2017-02-27

  Online published: 2018-03-05

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Abstract

A symmetrical deployable coupled mechanism with one translational degree of freedom (DOF) is proposed based on the particularity and symmetry of a regular dodecahedron. According to the spatial arrangement of all component geometrical elements in a regular dodecahedron, the construction of coupled framework is established. All component parts can be defined and motion chains can be obtained correspondingly. Three types of substitutive components are designed on the basis of the merging condition of above defined parts in coupled framework. The equivalent geometrical model is spliced with the given substitutive parts just by rotation joints (R). The DOF of the model is calculated and the output motion is analyzed under the condition that the elementary loop corresponding to a regular pentagon in a regular dodecahedron is movable. The expected symmetrical coupled mechanism can be established based on the mobility analysis of the entire model. The three-dimensional SolidWorks model of the coupled mechanism is build. The displacement variations of the end and nodes under different driving conditions are simulated and revealed with time-displacement curves by Matlab. Simulation results show that the novel mechanism is a symmetrical deployable coupled mechanism with one translation DOF.

Key words： coupled mechanism; regular dodecahedron; substitutive component; deployable mechanism

Cite this article

GAO Huifang , LIU Jingfang , YU Yueqing . Design of a 1-DOF Symmetrical Deployable Coupled Mechanism[J]. Journal of Mechanical Engineering, 2018 , 54(5) : 62 -73 . DOI: 10.3901/JME.2018.05.062

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