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arXiv 2102.10078cs.ROphysics.comp-ph
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电热折纸系统的快速多物理场仿真

Rapid Multi-Physics Simulation for Electro-Thermal Origami Systems

University of Michigan(密歇根大学)

Yi Zhu, Evgueni T. Filipov

摘要:

电热驱动折纸提供了一种新的方法,用于创建具有先进变形和功能能力的3-D系统。然而,目前很难模拟这样的系统的多物理行为,因为电热致动和大的折叠变形是高度相互依赖的。在这项工作中,我们介绍了一个快速的多物理仿真框架电热驱动折纸系统,可以同时捕获:热-机械耦合驱动,面板间接触,热传递,大变形折叠,和其他复杂的加载应用到折纸。与有限元模型的比较验证了所提出的框架模拟折纸热传递与不同的系统几何形状,材料和周围环境。仿真结果与物理电热微折纸结果的对比验证了该模型的有效性。仿真更复杂的折纸图案和折纸优化的案例研究作为应用实例,以显示该模型的能力和效率。该框架为主动折纸系统的分析、设计、控制和优化提供了一种新的仿真工具,推动了可行形状变形和功能能力的边界。

英文摘要:

Electro-thermally actuated origami provides a novel method for creating 3-D systems with advanced morphing and functional capabilities. However, it is currently difficult to simulate the multi-physical behavior of such systems because the electro-thermal actuation and large folding deformations are highly interdependent. In this work, we introduce a rapid multi-physics simulation framework for electro-thermally actuated origami systems that can simultaneously capture: thermo-mechancially coupled actuation, inter panel contact, heat transfer, large deformation folding, and other complex loading applied onto the origami. Comparisons with finite element models validate the proposed framework for simulating origami heat transfer with different system geometries, materials, and surrounding environments. Verification of the simulated folding behaviors against physical electro-thermal micro-origami further demonstrates the validity of the proposed model. Simulations of more complex origami patterns and a case study for origami optimization are provided as application examples to show the capability and efficiency of the model. The framework provides a novel simulation tool for analysis, design, control, and optimization of active origami systems, pushing the boundary for feasible shape morphing and functional capability.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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