Release Time:2019-03-12  Hits:

Indexed by: Journal Article

Date of Publication: 2018-06-01

Journal: SMART MATERIALS AND STRUCTURES

Included Journals: SCIE

Volume: 27

Issue: 6

ISSN: 0964-1726

Key Words: magnetorheological elastomer (MRE); constitutive model; electromagnetic analysis; mechanical model

Abstract: As constitutive models are too complicated and existing mechanical models lack universality, these models are beyond satisfaction for magnetorheological elastomer (MRE) devices. In this article, a novel universal method is proposed to build concise mechanical models. Constitutive model and electromagnetic analysis were applied in this method to ensure universality, while a series of derivations and simplifications were carried out to obtain a concise formulation. To illustrate the proposed modeling method, a conical MRE isolator was introduced. Its basic mechanical equations were built based on equilibrium, deformation compatibility, constitutive equations and electromagnetic analysis. An iteration model and a highly efficient differential equation editor based model were then derived to solve the basic mechanical equations. The final simplified mechanical equations were obtained by re-fitting the simulations with a novel optimal algorithm. In the end, verification test of the isolator has proved the accuracy of the derived mechanical model and the modeling method.