Modelling and analysis of an ionic polymer-metal composite (IPMC)-rocker-based four-bar for variable path generation using the Euler

Abstract

This article evaluates the dynamic performance of a partially compliant four-bar mechanism having an ionic polymer-metal composite (IPMC)-based rocker. The rigid link rocker is replaced with an IPMC actuator for variable path generation. The study aims to address the size limitations of a traditional variable length rigid link rocker, which is actuated by an electric motor for miniature micro-scale applications. Dynamic modelling is carried out taking into account the bending property of the IPMC and Grashof criterion. Simulations are also performed based on the effective length of IPMC following the Euler—Bernoulli approach with input voltage. The investigation demonstrates that by controlling the bending of IPMC along with the rotation of crank, a definite work volume can be generated at the rocker tip.

Keywords

partially compliant mechanism four bar mechanism ionic polymer metal composite effective length Grashof criterion

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Modelling and analysis of an ionic polymer-metal composite (IPMC)-rocker-based four-bar for variable path generation using the Euler—Bernoulli approach

Abstract

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