Investigating generation mechanisms of tyre/road noise by speed exponent analysis
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- 作者：Julia Winrotha ; julia.winroth@chalmers.se" class="auth_mail" title="E-mail the corresponding author ; Wolfgang Kroppa ; Carsten Hoevera ; Thomas Beckenbauerb ; Manuel Mä ; nnelc
- 关键词：Tyre/road noise ; Air-pumping ; Speed exponent ; Tyre vibrations
- 刊名：Applied Acoustics
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：115
- 期：Complete
- 页码：101-108
- 全文大小：1705 K
文摘
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A speed exponent analysis is suggested to quantify the contribution of air-pumping.
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A large part of the noise is explained by a high speed exponent indicating air-pumping.
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A variety of speed exponents is found for noise generated by tyre vibrations.
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Varying and overlapping speed exponents prevent a noise source separation analysis.