In today’s automotive industry sound package material design and optimization is important considering the need for weight reduction and achieving targeted sound absorption and sound transmission loss values. As per traditional approach vehicle level noise reduction targets are defined considering flat samples, but in actual vehicle condition molded trimmed parts are used.This paper discusses about the systematic methodology developed for molded sample characterization in terms of BIOT’s properties. Effects of different parameters like area wise thickness variation, density variation on BIOT properties is studied. Comparison of BIOT’s properties of flat and molded dash sample is done to study the effect of molded structure.Using these BIOT’s properties prediction of sound absorption and sound transmission loss results carried out using FTMM approach for flat sample and SEA approach for molded sample. These predicted results validated with experimental sound absorption and sound transmission loss measured in reverberation chambers and in impedance tube.Finally, suggestions are given to account critical parameter like thickness variation affecting the BIOT’s properties and in turn acoustic performance of sound package material. It can help NVH engineers during actual design and development of sound package material.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    BIOT’s Parameters Evaluation and Prediction of Flat and Molded Dash Panel Acoustic Performance and It’s Validation


    Weitere Titelangaben:

    Sae Technical Papers



    Kongress:

    Symposium on International Automotive Technology 2019 ; 2019



    Erscheinungsdatum :

    09.01.2019




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    BIOT's Parameters Evaluation and Prediction of Flat and Molded Dash Panel Acoustic Performance and It's Validation

    Joshi, Manasi P. / Jain, Sachinkumar / Kamble, Prashant Prakash et al. | British Library Conference Proceedings | 2019


    Dash panel, dash panel manufacturing method and vehicle

    SU ZHONG / YANG GUANGHUI / YANG ZHONG et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    DASH PANEL

    ABE SATORU | Europäisches Patentamt | 2025

    Freier Zugriff

    VEHICLE ACOUSTIC DASH PANEL SEAL AND GUIDE

    WENTWORTH THOMAS F / TAN TOON SHIN | Europäisches Patentamt | 2019

    Freier Zugriff

    DASH PANEL

    MAEKAWA RIKITOMO | Europäisches Patentamt | 2025

    Freier Zugriff