Engine block soundproofing: on meta-models of poroelastic materials for acoustic absorption and head injury criterion
by Slaheddine Chedly; Ameur Chettah; Mohamed Ichchou
International Journal of Vehicle Design (IJVD), Vol. 62, No. 1, 2013

Abstract: The purpose of this work is the investigation of meta-models quantifying shock and acoustic indicators. The vehicle design of the engine block insulating poroelastic materials is considered. An analytical tool is proposed. It facilitates decision-making. Modelling tools (Design of Experiments techniques, kriging models,) are used to build empirical models expressing the Head Injury Criterion (HIC) and the acoustic absorption coefficient of poroelastic materials. Models defined here allow HIC and acoustic absorption predictions to be made for any porous material whose intrinsic characteristics are included in the design space. Such models offer effective alternative to finite-element formulations, with considerable time saving.

Online publication date: Wed, 23-Jan-2013

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