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Modeling of composite multilayer rubber-steel: vibro-acousticinsulation of vehicle brake system

Published online by Cambridge University Press:  01 August 2012

Ala Zouaghi ,
Mez Chafra  and
Yvon Chevalier
Ala Zouaghi*
Affiliation:
Applied Mechanics and Systems Research Laboratory, Tunisia Polytechnic School, University of Carthage, BP 743, La Marsa 2078, Tunisia
Mez Chafra
Affiliation:
Applied Mechanics and Systems Research Laboratory, Tunisia Polytechnic School, University of Carthage, BP 743, La Marsa 2078, Tunisia
Yvon Chevalier
Affiliation:
Engineering of Mechanical Systems and materials Laboratory, LISMMA, ISMEP-SUPMECA, Paris, 93407 Saint-Ouen Cedex, France
*
a Corresponding author:moez.chafra@ept.rnu.tn
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Abstract

The study of nonlinear dynamic behavior of laminate composed of steel and rubber layersalso referred as “Shim”, used for vibro-acoustic insulation in brake system, isinvestigated. The simulation of the vibro-acoustic nonlinear behavior of Shim depending onfrequency, taking into account the large deformations and various nonlinearhyper-viscoelastic laws of rubber are considered. This paper presents a solution tocontribute in the identification of the best design of Shim in terms of damping vibrationof brake systems, using analytical and numerical method. The choice of the best structuredepends essentially on the nature of rubber, on the stacking sequence of materials, ontheir thickness, on the number of layers and on volume fraction of rubber. An analyticalstudy, with the use of the transfer matrix method is presented. A model on the finiteelement software ANSYS is constructed. The results lead to conclusions about the beststructure and design of Shim in term of vibro-acoustic insulation.

Keywords

Rubberdampingmultilayerfinite elementlarge deformationsnonlinear visco-elasticityhyper-elasticity
Type
Research Article
Information
Mechanics & Industry , Volume 13 , Issue 3 , 2012 , pp. 185 - 195
Copyright
© AFM, EDP Sciences 2012

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