Time domain BEM for sound radiation of tires

Lothar Banz, Heiko Gimperlein, Zouhair Nezhi, Ernst P. Stephan

Research output: Contribution to journalArticle

12 Citations (Scopus)
66 Downloads (Pure)

Abstract

This work investigates a time domain boundary element method for the acoustic wave equation in an exterior domain in the half-space R3+R+3. The Neumann problem is formulated as a boundary integral equation of the second kind, and the convergence and stability of conforming Galerkin approximations is studied in the complex geometry of a car or truck tire above a street. After a validation experiment, numerical results are presented in time or frequency domain for realistic benchmarks in traffic noise: the sound emission of vibrating tires, noise amplification in the horn-like geometry between the tire and the road, as well as the Doppler effect of a moving tire. The results are compared with calculations in frequency domain.
Original languageEnglish
Pages (from-to)45-57
Number of pages13
JournalComputational Mechanics
Volume58
Issue number1
Early online date19 Mar 2016
DOIs
Publication statusPublished - Jul 2016

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