Measurement of Sound Power of Urban Buses in Standstill Condition

Authors

  • Alexandra Chung Programa de Engenharia Mecânica/COPPE/UFRJ
  • Victor Henrique Pinheiro Depto de Engenharia Mecânica/Escola Politécnica/UFRJ
  • Ricardo Eduardo Musafir Programa de Engenharia Mecânica/COPPE/UFRJ https://orcid.org/0000-0002-5888-4027

DOI:

https://doi.org/10.55753/aev.v29e46.127

Keywords:

acoustics, sound power, bus noise

Abstract

In this article, according to the ISO 3744:2010 standard, the sound power levels, in dBA, of two urban buses in the stationary condition, in acceleration, are calculated. Different measurement configurations were tested using a reference box, in the form of a parallelepiped on a reflective plane, in order to verify the possibility of simplifying power measurement. The values obtained for the sound power levels remain close for the different configurations, suggesting that the simplest ones can be used to measure the sound power of these vehicles and similar ones.

References

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BRITISH STANDARD INSTITUTION.BS EN ISSO 3744: Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for an essentially free field over a reflecting plane. Brussels, 2010. 79p.

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Capa - Medição de Potência Sonora de Ônibus Urbanos na Condição Parado

Published

2014-12-01

How to Cite

CHUNG, A.; PINHEIRO, V. H.; MUSAFIR, R. E. Measurement of Sound Power of Urban Buses in Standstill Condition. Acoustics and Vibrations (Acústica e Vibrações), [S. l.], v. 29, n. 46, p. 36–46, 2014. DOI: 10.55753/aev.v29e46.127. Disponível em: https://acustica.emnuvens.com.br/acustica/article/view/aev46_potenciasonora. Acesso em: 18 dec. 2024.