{"title":"ACOUSTICS AND OVERHEATING- WHERE NEXT?","authors":"C. Cobbing, D. Fiumicelli","doi":"10.25144/13766","DOIUrl":"https://doi.org/10.25144/13766","url":null,"abstract":"","PeriodicalId":363785,"journal":{"name":"ACOUSTICS 2021","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127791192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"SPECIFICATION AND DESIGN OF SILENCERS FOR CONTROL OF LOW FREQUENCY NOISE FROM AN ENVIRONMENTAL TEST FACILITY","authors":"M. Smith, E. Quaranta","doi":"10.25144/13773","DOIUrl":"https://doi.org/10.25144/13773","url":null,"abstract":"","PeriodicalId":363785,"journal":{"name":"ACOUSTICS 2021","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131865028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"WHAT'S THE DIFFERENCE? PREDICTING AND CHARACTERISING TIMBRAL DISTINCTIONS BETWEEN FAMILIES OF BRASS INSTRUMENTS","authors":"M. Campbell, J. Gilbert, A. Myers","doi":"10.25144/13767","DOIUrl":"https://doi.org/10.25144/13767","url":null,"abstract":"","PeriodicalId":363785,"journal":{"name":"ACOUSTICS 2021","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133368299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The prediction of environmental noise barrier insertion loss (IL) is commonly undertaken from widely available empirical methods derived from measurements and geometrical acoustic approximations. The accuracy of these methods is limited when analysing non-standard design parameters, such as geometry; characteristics and location of sound absorbing materials; or diffraction effects close to the barrier. This article presents a new methodology to optimise the design of a railway noise barrier using a simplified numerical method. The numerical method is based on a two-dimensional hybrid finite element and boundary element analysis. The numerical method has been calibrated and tested against measurements of high speed trains. The model assumes an infinitely long train with pre-defined sound sources (e.g. rolling source, body aerodynamic, etc.). The numerical model quantifies the effect of various parameters upon the barrier IL including material properties; area and location of sound absorbing materials; diffraction over the barrier top; and analysis of energy build-up between train and barrier. These parameters are not easily quantifiable using standard methods and hence the innovation aspect of the methodology. The outcome of this study can be used to optimise and improve confidence in the detailed design of complex noise barriers.
{"title":"OPTIMISATION OF RAILWAY NOISE BARRIER DESIGN USING FINITE ELEMENTS AND BOUNDARY ELEMENT MODELLING METHODS","authors":"C. Bustos, V. Jurdic, C. Sharp, D. Hiller","doi":"10.25144/13771","DOIUrl":"https://doi.org/10.25144/13771","url":null,"abstract":"The prediction of environmental noise barrier insertion loss (IL) is commonly undertaken from widely available empirical methods derived from measurements and geometrical acoustic approximations. The accuracy of these methods is limited when analysing non-standard design parameters,\u0000 such as geometry; characteristics and location of sound absorbing materials; or diffraction effects close to the barrier. This article presents a new methodology to optimise the design of a railway noise barrier using a simplified numerical method. The numerical method is based on a two-dimensional\u0000 hybrid finite element and boundary element analysis. The numerical method has been calibrated and tested against measurements of high speed trains. The model assumes an infinitely long train with pre-defined sound sources (e.g. rolling source, body aerodynamic, etc.). The numerical model quantifies\u0000 the effect of various parameters upon the barrier IL including material properties; area and location of sound absorbing materials; diffraction over the barrier top; and analysis of energy build-up between train and barrier. These parameters are not easily quantifiable using standard methods\u0000 and hence the innovation aspect of the methodology. The outcome of this study can be used to optimise and improve confidence in the detailed design of complex noise barriers.","PeriodicalId":363785,"journal":{"name":"ACOUSTICS 2021","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123489746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Whittle, A. Elliott, J. Meggitt, D. Wong-McSweeney, R. Parsons
{"title":"NOISY NEIGHBOURS: TOWARDS A HYBRID PREDICTION AND TESTING PROCESS FOR SOUND INSULATING PARTITIONS","authors":"G. Whittle, A. Elliott, J. Meggitt, D. Wong-McSweeney, R. Parsons","doi":"10.25144/13759","DOIUrl":"https://doi.org/10.25144/13759","url":null,"abstract":"","PeriodicalId":363785,"journal":{"name":"ACOUSTICS 2021","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115401462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EMPIRICAL RELATIONSHIP BETWEEN LNIGHT AND LAMAX","authors":"N. Conlan, W. Wei, J. Harvie-Clark","doi":"10.25144/13762","DOIUrl":"https://doi.org/10.25144/13762","url":null,"abstract":"","PeriodicalId":363785,"journal":{"name":"ACOUSTICS 2021","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124295798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EXPLORING THE USE OF SOUNDSCAPING AND SPEECH MASKING IN POST-COVID OFFICES","authors":"A. Parkin","doi":"10.25144/13756","DOIUrl":"https://doi.org/10.25144/13756","url":null,"abstract":"","PeriodicalId":363785,"journal":{"name":"ACOUSTICS 2021","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124773128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EFFECT OF AUDIO-VISUAL INTERACTION ON SUBJECTIVE ASSESSMENT OF INDUSTRIAL SOUNDSCAPES","authors":"J. Smyrnowa, G. Brown","doi":"10.25144/13764","DOIUrl":"https://doi.org/10.25144/13764","url":null,"abstract":"","PeriodicalId":363785,"journal":{"name":"ACOUSTICS 2021","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116665023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"THE VALUE OF CONTROL FOR ACOUSTIC SATISFACTION IN OPEN PLAN OFFICES: A CASE STUDY","authors":"J. Harvie-Clark, R. Hinton","doi":"10.25144/13757","DOIUrl":"https://doi.org/10.25144/13757","url":null,"abstract":"","PeriodicalId":363785,"journal":{"name":"ACOUSTICS 2021","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126798405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：