ec07ce0f-f448-48a3-adfa-00a27947d47320250912061410604wseas:wseasmdt@crossref.orgMDT DepositWSEAS TRANSACTIONS ON APPLIED AND THEORETICAL MECHANICS2224-34291991-874710.37394/232011http://wseas.org/wseas/cms.action?id=4006128202512820252010.37394/232011.2025.20https://wseas.com/journals/mechanics/2025.phpCarmenBrancaccioDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, Fisciano (SA), ITALYGiovanniFasuloItalian Aerospace Research Centre (CIRA), Via Maiorise, 1, Capua (CE), ITALYFeliciaPalmieroPiaggio Aerospace, Viale Generale Disegna, 1, Villanova d’Albenga (SV), ITALYGiorgioTravostinoPiaggio Aerospace, Viale Generale Disegna, 1, Villanova d’Albenga (SV), ITALYRobertoCitarellaDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, Fisciano (SA), ITALYThis study presents the development of a high-fidelity coupled structural–acoustic finite element model of the Piaggio P.180 passenger cabin. The work aims to predict interior noise in the low- to mid-frequency range. To reduce computational cost, the fuselage was modeled using two-dimensional shell elements and one-dimensional beam elements. A detailed modal analysis accurately captured the cabin’s resonance behavior: the first three structural modes showed good agreement with experimental data. Finally, harmonic response analyses were performed to evaluate the noise reduction through the airframe up to approximately 110 Hz.9122025912202511311813https://wseas.com/journals/mechanics/2025/a265111-011(2025).pdf10.37394/232011.2025.20.13https://wseas.com/journals/mechanics/2025/a265111-011(2025).pdf10.1080/00140139.2012.703698S. Penning, J. Quehl, V. Rolny, Effects of aircraft cabin noise on passenger comfort, Ergonomics, 55:10, 1252-1265, 2012. H.J.-P. Morand, R. Ohayon, Fluid-Structure Interaction: Applied Numerical Methods, Wiley, 1995. D. Miljković, M. Maletić, M. Obad, Comparative investigation of aircraft interior noise properties, Proceedings of the 3rd Congress of the Alps-Adria Acoustics Association, Graz, Austria, 2007. T.J.R. Hughes, The finite element method: linear static and dynamic finite element analysis, Dover, 2000. 10.3390/app9081642S. Kirkup, The boundary element method in acoustics: A survey, Applied Sciences, 9(8), 1642, 2019. 10.1007/s00466-025-02639-9T. Landi, C. Hoareau, JF. Deü et al., Comparative vibroacoustic analyses: FEM vs. IGA, Computational Mechanics, 2025. 10.1016/j.jsv.2016.04.026A. Culla, W. D’Ambrogio, A. Fregolent, S. Milana, Vibroacoustic Optimization Using a Statistical Energy Analysis Model, Journal of Sound and Vibration, 375, 102-114, 2016. R. Gao, Y. Zhang, D. Kennedy, A hybrid boundary element-statistical energy analysis for the mid-frequency vibration of vibro-acoustic systems, Comput. Struct., 203, 34-42, 2018. 10.2514/6.1997-1101A. Grewal, D. Zimcik, R. Lapointe, Vibro-acoustic modelling in aircraft cabin noise transmission and control, 38th Structures, Structural Dynamics, and Materials Conference, 8, 1997. G. Carducci, S. Carducci, Numerical Vibroacoustic Analysis of a Fuselage Section: Low-Frequency Noise Reduction, PEGASUS-AIAA Student Conference, 2019. A. Sollo, P. 180 Avanti: An Iconic Airplane and the Achievement of an Historical Milestone, Aerotecnica Missili & Spazio, 100, 69–78, 2021. R. de’Pompeis, P. Cinquetti, P. Martini, Development and Certification Flight Test on the Piaggio P. 180 Avanti Aircraft: A General Overview, SAE Technical Paper 911003, 1991. S. M. Dickinson, The buckling and frequency of flexural vibration of rectangular isotropic and orthotropic plates using Rayleigh’s method, Journal of Sound and Vibration, 61(1), 1–8, 1978. R. Blevins, Formulas for natural frequency and mode shape, Krieger Publishing Company, 1995. T. Polito, F. Marulo, A. Sollo, M. Aversano G. Pagnozzi, Modal and acoustic characterization of structural components for fuselage applications, In Proceedings of the 24th International Conference on Noise and Vibration Engineering (ISMA2010), Leuven, 2010.