Type Synthesis and Analysis of Plate Deployable Mechanism

doi:10.3901/JME.2021.09.028

Abstract

Abstract: In order to solve the problem that there are few types of flat folding and unfolding mechanism units, a configuration synthesis of flat folding and unfolding mechanism is made, and a mechanism for kinematic analysis is selected. Based on the analysis of the folding principle of the flat folding and unfolding mechanism, a method of configuration synthesis of the flat folding and unfolding unit mechanism is proposed by using the theory of spinor, and a variety of flat folding and unfolding mechanism configurations are synthesized. Through the analysis and comparison, a kind of flat folding and unfolding mechanism with all moving pairs as rotating pairs is selected. Its configuration mechanism and geometric characteristics are analyzed, and the degree of freedom of the mechanism is calculated based on the rotation constraint topological diagram. Then, the kinematic analysis is carried out, the angular velocity of each component is analyzed, and then the centroid velocity and acceleration of each component are derived, and the numerical calculation and simulation are carried out to verify the correctness of the theoretical analysis results. The research content of this paper can provide reference for the design analysis and engineering application of this kind of mechanism.

Key words: flat folding and unfolding mechanism, configuration synthesis, spinor theory, kinematics

CLC Number:

V443

GUO Luyao, ZHAO Yongsheng, LI Ming, HAN Bo, LU Sicheng, CUI Qifeng, XU Yundou. Type Synthesis and Analysis of Plate Deployable Mechanism[J]. Journal of Mechanical Engineering, 2021, 57(9): 28-38.

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