Vibration Damping Measurement on Car Windshields

Authors

  • Balázs Vehovszky
    Affiliation

    Department of Whole Vehicle Engineering, Audi Hungaria Faculty of Automotive Engineering, Széchenyi István University, H-9026 Győr, Egyetem tér 1., Hungary

  • István Horváth
    Affiliation

    Department of Whole Vehicle Development, Audi Hungária Zrt., H-9027 Győr, Audi Hungária út 1., Hungary

  • Karl Slenczka
    Affiliation

    Department of Whole Vehicle Development, Audi Hungária Zrt., H-9027 Győr, Audi Hungária út 1., Hungary

  • Martin Schuster
    Affiliation

    Department of Whole Vehicle Development, Audi Hungária Zrt., H-9027 Győr, Audi Hungária út 1., Hungary

  • Tamás Jakubík
    Affiliation

    Department of Whole Vehicle Engineering, Audi Hungaria Faculty of Automotive Engineering, Széchenyi István University, H-9026 Győr, Egyetem tér 1., Hungary

https://doi.org/10.3311/PPme.11559

Abstract

Knowledge of the damping properties of a windshield is a fundamental element of the acoustical characterization of a car. The measuring method of damping for a windshield is presented in the paper. The damping loss factor – as a basic measure of mechanical damping – was determined experimentally by two means: the reverberation time from impact hammer testing as well as the modal behavior from 3D laser scanning vibrometer measurements. The results proved that the modal shapes have a fundamental effect on the measured damping values.

Keywords:

windshield vibration, modal analysis, damping loss factor, laser scanning vibrometer

Published Online

2018-11-13

How to Cite

Vehovszky, B., Horváth, I., Slenczka, K., Schuster, M., Jakubík, T. “Vibration Damping Measurement on Car Windshields”, Periodica Polytechnica Mechanical Engineering, 63(1), pp. 1–6, 2019. https://doi.org/10.3311/PPme.11559

Issue

Vol. 63 No. 1 (2019)

Section

Articles