Graph theory-based comprehensive configuration method for spatial prismatic expandable unit mechanism folded into straight line

Abstract

The invention discloses a graph theory-based comprehensive configuration method for a spatial prismatic expandable unit mechanism folded into a straight line, relates to a comprehensive expandable unit mechanism configuration method, and aims to solve the problems that an artificial mechanism is low in comprehensive efficiency and leakage is easily caused. The comprehensive configuration method comprises the following steps: 1) according to stability judging criterions of a hinged truss system, establishing a static truss structure and an adjacently connected matrix of a spatial prismatic expandable unit mechanism; 2) by using an embryonic graph interpolation point method, and static truss spectrum as an embryonic graph, interpolating a certain number of second-degree points in appropriate positions, and converting a static truss structure into the spatial prismatic expandable unit mechanism; and 3) performing isomorphism judgment on the comprehensive spatial prismatic expandable unit mechanism, and rejecting coincident configurations, thereby obtaining a non-coincident spatial prismatic expandable unit mechanism. The method can be applied to comprehensive configuration design of spatial prismatic expandable unit mechanisms which are used for assembling spatial expandable mechanisms such as parabolic antennas and can be folded into straight lines.

Description

technical field [0001] The invention relates to a method for synthesizing the configuration of a deployable unit mechanism, in particular to a method for synthesizing the configuration of a space prism-type deployable unit that can be folded into a straight line based on graph theory, which can be used for assembling satellite parabolic antennas and space planar antenna supports The comprehensive design of the configuration of the spatial prismatic mechanism unit that can be folded into a straight line required by the space expandable mechanism such as the back frame, the double-layer ring truss type expandable antenna, and the solar cell array support frame belongs to the technology of the structure configuration of the expandable unit field. Background technique [0002] With the increasingly complex functions of spacecraft, the demand for the caliber and area of ​​the spacecraft has increased significantly. For complex and large spacecraft such as the International Space ...

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Problems solved by technology

[0004] The present invention provides a graph theory-based synthesis method for the configuration of a spatial prism-type expandable unit mechanism that can be folded into a straight line. The method can systematically, comprehensively and effectively solve the spatial prism-type expandable unit mechanism that can constitute a space-expandable mechanism. The problem of synthesis can realize the automation of configuration synthesis to solve the problem of low efficiency and prone to omissions in the synthesis of manual mechanisms

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