The invention relates to the field of deployable structures, and particularly discloses a bistable-state folding and unfolding structure based on Sanpu origami, the bistable-state folding and unfolding structure comprises four panels and four flexible hinges, the flexible hinges are connected between two adjacent panels, the sum of the heights of one group of oppositely-arranged hinges is equal to the sum of the heights of the other group of oppositely-arranged hinges, and the flexible hinges are arranged on the panels. And the height difference of each hinge needs to avoid a four-hinge over-constraint mechanism condition. The bistable folding and unfolding structure provided by the invention has good rigidity in a complete folding state and a complete unfolding state, the steady-state rigidity is improved through geometric constraint of the structure, and a redundant locking device is not needed; when the bistable structure deforms and crosses the middle energy potential barrier, the bistable structure can be automatically driven to reach the other stable state, and the bistable structure has the advantages of being simple in driving, capable of being repeatedly folded and unfolded and high in degeneracy.
本申请涉及可展结构领域,具体公开了一种基于三浦折纸的双稳态折展结构,其包括四个面板和四个柔性铰链,柔性铰链连接于相邻的两个面板之间,一组呈相对设置的铰链高度之和与另一组呈相对设置的铰链高度之和相等,且各铰链的高度差需规避四铰链过约束机构条件。本申请提供的双稳态折展结构在完全折叠及展开两稳态下具有良好的刚度,通过结构的几何约束提升稳态刚度,无需多余的锁定装置;当双稳态结构变形越过中间能量势垒后,能够自驱动到达另一稳态,具有驱动简单、可重复折展、简并度高的优点。
Bistable folding and unfolding structure based on Mipu origami
一种基于三浦折纸的双稳态折展结构
2024-05-03
Patent
Electronic Resource
Chinese
Bistable folding and unfolding unit and array system thereof
European Patent Office | 2023
|Bistable Behavior of the Cylindrical Origami Structure With Kresling Pattern
Online Contents | 2015
|Unfolding and folding device for space inflatable unfolding structure
European Patent Office | 2022
|