Systematic design methodology of bistable compliant micro-mechanisms

Tsay, Jinni; Sung, Cheng-Kuo; Su, Liang-Qing

doi:10.1117/12.498874

Cited by 1 publication

(1 citation statement)

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“…There are several types of bistable compliant mechanisms. These include latch-lock mechanisms, hinged multi-segment mechanisms, and residual-compressive-stress buckled beam mechanisms (Jin et al, 2004; Tsay et al, 2003). These devices have been designed as compliant mechanisms, which means that most, if not all, of the motion of the devices arise through the deflection of flexible segments (Masters and Howell, 2003).…”

Section: Introductionmentioning

confidence: 99%

Bistable compliant mechanism using magneto active elastomer actuation

Crivaro

Sheridan

Frecker

et al. 2016

Journal of Intelligent Material Systems and Structures

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One of the challenges in the emerging field of origami engineering is achieving large deformations to enable significant shape transformations. Bistable compliant mechanisms provide a means to achieve this, and the goal of this research is to investigate the feasibility and design of a compliant bistable mechanism that is actuated by magneto active elastomer material. When exposed to an external field, magneto active elastomer material deforms to align embedded magnetic particles with the field. We investigate a case study using magneto active elastomer actuation through the development of finite element analysis models to predict the magnetic field required to snap the device from its first stable position to its second for various geometries and field strengths. The finite element analysis model also predicts the displacement of the mechanism as it moves from one position to the other to determine whether the device is in fact bistable. These results can be used to understand the relationship between the substrate properties and the bistability of the device. The experimental results validate the finite element analysis models and demonstrate the functionality of active magneto active elastomer materials to be used as actuators for such devices and applications of origami engineering.

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Section: Introductionmentioning

confidence: 99%