Geometric design and energy absorption of a new deployable cylinder tube
Geometric design and energy absorption of a new deployable cylinder tube
复制标题
新型可展开缸筒的几何设计与能量吸收
DOI：
10.1080/15376494.2020.1846099
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发表时间：
2020-11-24
影响因子：
2.8
通讯作者：
Wang, Zhihua
中科院分区：
文献类型：
--
作者：
Wang, Qiang;Li, Shiqiang;Wang, Zhihua
基于“三浦折纸”，通过将腹板引入到薄壁管中，提出了一种新的预折叠管。该管的准静态压缩分析表明腹板对变形模式和能量吸收有重要影响。与圆管相比，新型薄壁管不仅保持了低初始峰值力和诱导变形模式的优越性能，而且具有更好的能量吸收能力。通过参数分析确定了单元数、边数、预折角度对新型薄壁管变形过程的影响。设计了优化的结构，降低了初始峰值力。还对新结构在准静态压缩下的能量吸收进行了理论分析，理论结果与数值模拟结果吻合较好。
A new prefolded tube is proposed by introducing web into a thin-walled tube based on "Miura origami". The quasi-static compression analysis of this tube shows that the web has an important influence on deformation mode and energy absorption. Compared with a circular tube, the new thin-walled tube not only maintains the superior performance of low initial peak force and induced deformation mode, but also has a better energy absorption capacity. The influences of the number of units, edges, and prefolding angle on the deformation process of the new thin-walled tube are determined through parameter analysis. An optimized structure is designed, and the initial peak force is reduced. The energy absorption of the new structure under quasi-static compression is also theoretically analyzed, and the theoretical results are in good agreement with the numerical simulation results.