Auralization of railway noise: Emission synthesis of rolling and impact noise

Reto Pieren, Kurt Heutschi, Jean Marc Wunderli, Mirjam Snellen, Dick G. Simons

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

Within the research project TAURA, a traffic noise auralization system was developed that covers road traffic and railway noise. This paper focuses on an emission synthesizer for railway noise and presents a concept for rolling and impact noise. The synthesis is based on a physical approach in which the noise generation mechanism is modeled in the time domain. As a starting point, equivalent roughness patterns of each wheel and the rail are generated. These spatial signals are used to implicitly model the mechanical excitation of the wheel/rail system. Transfer paths describing the vibrational behavior and the radiation of wheels and rail are implemented as digital filters. This approach features a high degree of flexibility but requires knowledge of the detailed model parameters.

Original languageEnglish
Pages (from-to)34-45
Number of pages12
JournalApplied Acoustics
Volume127
DOIs
Publication statusPublished - 1 Dec 2017

Keywords

  • Auralization
  • Railway noise
  • Rolling noise
  • Sound synthesis

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