Rapid Multi-Physics Simulation for Electro-Thermal Origami Systems

TL;DR

This paper presents a fast, comprehensive multi-physics simulation framework for electro-thermal origami systems, enabling accurate modeling of complex behaviors like heat transfer, large deformations, and contact interactions.

Contribution

It introduces a novel simulation tool that integrates thermo-mechanical coupling, contact, and large deformations for electro-thermal origami, validated against physical and finite element models.

Findings

Validated against finite element models across various geometries and materials.

Accurately predicts folding behaviors of micro-origami devices.

Demonstrates efficiency and capability through complex pattern simulations and optimization.

Abstract

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.