本质上曲的折叠的几何,力学和操作
Fan Feng1, Klaudia Dradrach1, Michał Zmyślony1
1Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK. jsb56@cam.ac.uk.
Soft matter
|February 14, 2024
概括
内在曲折 (ICFs) 是一种新的曲机制,与原始设计不同. 这些折叠,通过生长或曲的边界,提供独特的部署和锁定能力在外和先进的材料.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 几何几何学的几何学
背景情况:
- 内在曲折叠 (ICF) 与传统的原木折叠不同,因为它们不曲平板的同度.
- ICFs来自于非同度的过程,如生长或成型,或通过沿着曲线边界连接板块.
研究的目的:
- 通过结合理论和实验方法,探索可开发中的内在曲折 (ICF) 的动力学和作用.
- 研究ICF的几何性质和机械行为,包括它们的部署性和锁定机制.
主要方法:
- 从纸张和平面液晶弹性体 (LCE) 板组成的联合ICF的实验性制造,这些板会变成ICF.
- 基于地质曲率和折叠线几何学的ICF表面的理论构造,以计算曲能量.
- 分析不同条件下的ICF行为,包括不负载状态和LCE特定的曲率缩放.
主要成果:
- ICF的功能是曲机制,可调节折叠角度和折叠线曲率.
- 对称ICF可以实现可部署但弱的平面状态,而非对称ICF在机械强的有限角度上锁定.
- 基于LCE的ICF表现出不寻常的脊曲率与厚度 (t^-1/7) 的缩放,并且可以组合起来创建功能性抓手.
结论:
- ICF代表了一类多功能折叠,具有可调节的机械性能,与传统原始设计相比,具有明显的优势.
- 理论框架准确地预测了ICF的行为,指导实验设计和材料选择.
- 基于LCE的ICF在创建强大,多功能抓柄的证明应用突出了它们在先进机器人和可部署结构中的潜力.
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