{"title":"Railway rolling noise in curved tracks: Dynamic modelling of the wheelset and influence of the curve","authors":"","doi":"10.1016/j.jsv.2024.118738","DOIUrl":null,"url":null,"abstract":"<div><div>Railway wheelsets operating on curved tracks experience complex dynamic behaviour which can affect the generation of rolling noise. This paper presents a comprehensive study on the dynamic response of wheelsets on curved tracks and the associated rolling noise radiation from the wheel and track. A dynamic model is developed to accurately compute the vibrational response of the flexible wheelset, considering the inertial effects associated with its rotation and trajectory along the curved track. An axisymmetric approach is proposed, which reduces significantly the computational effort in comparison to a three-dimensional numerical model. Considering a railway vehicle and its interaction with the track, the rolling noise generated in curved conditions is evaluated. Noise radiated as a result of a vehicle running on curves of 300 m and 2 km radius is compared with a tangent track. Differences in the sound radiation are found among the acoustic levels associated with each wheelset, the steady-state position of such wheelsets on the rails being a key factor.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sound and Vibration","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022460X24005005","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ACOUSTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Railway wheelsets operating on curved tracks experience complex dynamic behaviour which can affect the generation of rolling noise. This paper presents a comprehensive study on the dynamic response of wheelsets on curved tracks and the associated rolling noise radiation from the wheel and track. A dynamic model is developed to accurately compute the vibrational response of the flexible wheelset, considering the inertial effects associated with its rotation and trajectory along the curved track. An axisymmetric approach is proposed, which reduces significantly the computational effort in comparison to a three-dimensional numerical model. Considering a railway vehicle and its interaction with the track, the rolling noise generated in curved conditions is evaluated. Noise radiated as a result of a vehicle running on curves of 300 m and 2 km radius is compared with a tangent track. Differences in the sound radiation are found among the acoustic levels associated with each wheelset, the steady-state position of such wheelsets on the rails being a key factor.
期刊介绍:
The Journal of Sound and Vibration (JSV) is an independent journal devoted to the prompt publication of original papers, both theoretical and experimental, that provide new information on any aspect of sound or vibration. There is an emphasis on fundamental work that has potential for practical application.
JSV was founded and operates on the premise that the subject of sound and vibration requires a journal that publishes papers of a high technical standard across the various subdisciplines, thus facilitating awareness of techniques and discoveries in one area that may be applicable in others.