%0 Journal Article %T A Nonlinear Quasi-3D Approach for the Modeling of Mufflers with Perforated Elements and Sound-Absorbing Material %A G. Montenegro %A A. Della Torre %A A. Onorati %A R. Fairbrother %J Advances in Acoustics and Vibration %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/546120 %U http://dx.doi.org/10.1155/2013/546120