Design and analysis of a new type of tower-shaped circular deployable and foldable mechanism
MAO Yi
WANG Rugui
YU Yiyin
DONG Yao
Abstract：[Objective]Traditional circular deployable and foldable mechanisms suffer from low deployment accuracy,poor stability,and limited expandability,while spatial deployable and foldable mechanisms possess advantages such as small stowed size,large deployed volume,and light weight.To meet the needs of future space technology development,feature synthesis was performed on the eight-bar loop using the germ diagram method,and different tower-shaped spatial deployable and foldable mechanisms were constructed.[Methods]Based on the ideas of screw theory and the equivalent isolation method,the geometric coordination and motion synchronism of the tower-shaped circular deployable and foldable mechanism were analyzed.Computer-aided design was adopted,and the mapping relation between design parameters and performance was analyzed through numerical simulation.[Results]The analysis results verify the stability and effectiveness of the deployment and folding processes of the tower-shaped circular deployable and foldable mechanism.
Keywords：Spatial deployable and foldable mechanismScrew theoryTower-shaped circular mechanism
Publication Date：2025-11-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 63-69 )