Pruett H T, Klocke P, Howell L, Magleby S
Department of Mechanical Engineering, Brigham Young University, Provo, UT 84602, USA.
Philos Trans A Math Phys Eng Sci. 2024 Oct 7;382(2283):20240008. doi: 10.1098/rsta.2024.0008.
Origami-inspired mechanisms provide opportunities for deployable systems, including reflectarray antennas. There is a need for approaches to deploy and stabilize such arrays. Magnetic mechanisms show promise for meeting those needs and how methods for modelling their behaviour would facilitate their design and analysis. We demonstrate the existence of bistability in select configurations of magnetically stabilized hinges and characterize their equilibrium positions as a function of parameters estimated from simulation data for these mechanisms. Other relevant information such as potential energy, axial force data, angular position of unstable equilibria and transition values from bistability to monostability are also modelled. The results are verified through experimental torque and stability data for selected configurations of the mechanisms.This article is part of the theme issue 'Origami/Kirigami-inspired structures: from fundamentals to applications'.
受折纸启发的机构为包括反射阵列天线在内的可展开系统提供了机会。需要有方法来部署和稳定此类阵列。磁性机构有望满足这些需求,以及研究其行为建模方法如何促进其设计和分析。我们证明了在磁稳定铰链的特定配置中存在双稳态,并将其平衡位置表征为根据这些机构的模拟数据估计的参数的函数。还对其他相关信息进行了建模,如势能、轴向力数据、不稳定平衡的角位置以及从双稳态到单稳态的转变值。通过这些机构选定配置的实验扭矩和稳定性数据对结果进行了验证。本文是主题为“受折纸/剪纸启发的结构:从基础到应用”的一部分。