Modeling and Displacement Analysis of Origami Spring Considering Collision and Deformation of Components
Modeling and Displacement Analysis of Origami Spring Considering Collision and Deformation of Components
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考虑部件碰撞和变形的折纸弹簧建模与位移分析
DOI：
10.1007/978-3-030-20131-9_33
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Takeda Yukio
中科院分区：
文献类型：
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作者：
Matsuo Hiroshi;Matsuura Daisuke;Sugahara Yusuke;Takeda Yukio
折纸弹簧是一种可转换折纸机构，其宏观运动通常被认为是单自由度运动，而在理论上，其自由度是三自由度机构。本文引入了一种新的位移分析方法来研究折纸弹簧的行为。折纸弹簧被建模为一个包括刚性和柔顺部件的连杆机构。特别地，折叠用旋转关节来表示，假设对结构稳定性有影响的变形用弦来表示。利用该模型进行了位移分析。结果表明，单个DOF对平移运动有贡献，另外两个DOF具有调节作用，以避免小范围内各部件之间的碰撞。此外，为了研究宏观运动，引入了基于弦变形的应变能。通过理论运动与实验运动的比较，验证了该方法的有效性。
The Origami Spring is one of the convertible origamis and its macroscopic motion is often regarded as a single Degree-of-Freedom (DoF) motion while in theory, its DoF is three DoF mechanism. In this paper, a new displacement analysis was introduced to study the behavior of Origami Spring. The Origami Spring was modeled as a link mechanism which includes rigid and compliant components. In particular, folding was represented by a revolute joint, and deformation which is assumed to have an effect on the structural stability was represented by a string. With this model, the displacement analysis is carried out. As the result, it was revealed that a single DoF contributed to translational motion and the other two DoF have a role of adjustment to avoid collision between components in a narrow range. In addition, strain energy based on deformation of string was introduced in order to investigate the macroscopic motion. As the result, its effectiveness was revealed by comparison of theoretical and experimental motions.