Statistical tyre/road noise modelling based on continuous 3D texture data

In this article, statistical modelling approaches for tyre/road noise levels (according to the CPX method) based on continuous 3D texture measurements are presented. The main focus is to estimate if viable correlations of interpretable 3D texture parameters with frequency-dependent CPX levels can be...

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Main Authors: Wehr Reinhard, Fuchs Andreas, Breuss Simon
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:Acta Acustica
Subjects:
Online Access:https://acta-acustica.edpsciences.org/articles/aacus/full_html/2021/01/aacus210043/aacus210043.html
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author Wehr Reinhard
Fuchs Andreas
Breuss Simon
author_facet Wehr Reinhard
Fuchs Andreas
Breuss Simon
author_sort Wehr Reinhard
collection DOAJ
description In this article, statistical modelling approaches for tyre/road noise levels (according to the CPX method) based on continuous 3D texture measurements are presented. The main focus is to estimate if viable correlations of interpretable 3D texture parameters with frequency-dependent CPX levels can be found. Therefore, a set of descriptive 3D texture parameters is introduced. Two different modelling approaches, focussing on linearity in order to gain interpretability, are shown. First, a linear model is calculated based on the first principal components of the texture parameters, and second, a random forest regression approach is performed on the direct texture parameters. As a principal component analysis of the CPX measurement data reveals three highly correlated frequency ranges, both approaches are calculated independently for low, mid and high frequency bands. Both models show good performance in the low and mid frequency range, whereas the accuracy in the high frequency range declines. Due to the focus on linearity, both approaches result in comparable statistical benchmark parameters.
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spelling doaj.art-a515c9866db141d0acafdb2a25c7e70d2023-09-02T22:08:11ZengEDP SciencesActa Acustica2681-46172021-01-0155210.1051/aacus/2021040aacus210043Statistical tyre/road noise modelling based on continuous 3D texture dataWehr ReinhardFuchs Andreas0Breuss Simon1AIT Austrian Institute of TechnologyAIT Austrian Institute of TechnologyIn this article, statistical modelling approaches for tyre/road noise levels (according to the CPX method) based on continuous 3D texture measurements are presented. The main focus is to estimate if viable correlations of interpretable 3D texture parameters with frequency-dependent CPX levels can be found. Therefore, a set of descriptive 3D texture parameters is introduced. Two different modelling approaches, focussing on linearity in order to gain interpretability, are shown. First, a linear model is calculated based on the first principal components of the texture parameters, and second, a random forest regression approach is performed on the direct texture parameters. As a principal component analysis of the CPX measurement data reveals three highly correlated frequency ranges, both approaches are calculated independently for low, mid and high frequency bands. Both models show good performance in the low and mid frequency range, whereas the accuracy in the high frequency range declines. Due to the focus on linearity, both approaches result in comparable statistical benchmark parameters.https://acta-acustica.edpsciences.org/articles/aacus/full_html/2021/01/aacus210043/aacus210043.htmltyre/road noisecpx method3d road surface texturestatistical modelling
spellingShingle Wehr Reinhard
Fuchs Andreas
Breuss Simon
Statistical tyre/road noise modelling based on continuous 3D texture data
Acta Acustica
tyre/road noise
cpx method
3d road surface texture
statistical modelling
title Statistical tyre/road noise modelling based on continuous 3D texture data
title_full Statistical tyre/road noise modelling based on continuous 3D texture data
title_fullStr Statistical tyre/road noise modelling based on continuous 3D texture data
title_full_unstemmed Statistical tyre/road noise modelling based on continuous 3D texture data
title_short Statistical tyre/road noise modelling based on continuous 3D texture data
title_sort statistical tyre road noise modelling based on continuous 3d texture data
topic tyre/road noise
cpx method
3d road surface texture
statistical modelling
url https://acta-acustica.edpsciences.org/articles/aacus/full_html/2021/01/aacus210043/aacus210043.html
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AT breusssimon statisticaltyreroadnoisemodellingbasedoncontinuous3dtexturedata