Session: MSNDC-01-01: Computational Methods and Software Tools in Multibody Systems and Nonlinear Dynamics

Paper Number: 90491

90491 - Dynamic Characterization of Miura-Ori Structures 

The intriguing structural dynamic behaviors of Miura-ori origami assemblies is reported in this paper. The experimental study is focused on establishing a methodology for estimating out-of-plane structural stiffness and energy dissipation as a function of geometric parameters of origami structures. Three types of origami systems are investigated, which are 30 deg, 45 deg. and 60 deg. parallelogram angles. Quasi-static three-point bending experiments are utilized to extract the structural properties of the origami systems. The dynamic characterization consists of eigen-frequency extractions from modal tests. Our findings show that the structural stiffness of origami can be increased by reducing the angle of the parallelograms. Increasing the parallelogram angles will result in expanding the origami system leading to an increase the energy dissipation under cyclical loading conditions. The eigen-frequencies of Miura-ori origami for the first three dynamic modes are lower than a monotonic panel with the same planner dimensions. However, the eigen-frequencies for the first three modes of Miura-ori origami systems with 0 deg, 45 deg. and 60 deg. angles are relatively close to each other. Additional studies will also be necessary to gain deeper insights into manipulating origami frequency-dependent properties as a function of the geometric parameters to program the energy dissipation of the system for applications related to vibration mitigation, acoustic attenuation, and impact resistance.

Presenting Author: Bart Boom University of Washington

Presenting Author Biography: Bart Boom is a member of The Illimited LAB at the University of Washington, Seattle. His research interests are focused on exploiting the nonlinear behavior of nature-inspired metamaterials and dynamic structures with biomimetic actuation for aerospace, and robotic applications. Bart's professional experience includes technical positions in multidisciplinary fields of engineering ranging from horticultural machinery to offshore platforms and robotics. Bart earned a BSc in Mechanical Engineering from Inholland University of Applied sciences, Alkmaar, the Netherlands, and an MSc in Mechanical Engineering from the University Twente, Enschede, the Netherlands. Currently, he is conducting his PhD research in nature-inspired robotic flights.

Authors:

Bart Boom University of Washington
Sam Suidgeest Twente University
Ed Habtour NA