Willis coupling, which couples the constitutive equations of an acoustical material, has been applied to acoustic metasurfaces with promising results. However, less is understood about Willis coupling in bulk media. In this paper a multiple-scales homogenization method is used to analyze the source and interpretation of Willis coupling in one-dimensional bulk media without any hidden degrees of freedom, or one-dimensional layered media. As expected from previous work, Willis coupling is shown to arise from geometric asymmetries, but is further shown to depend greatly on the measurement position. In addition, a discussion of the predicted material properties, including Willis coupling, of macroscopically inhomogeneous media is presented.
{"title":"Willis coupling in one-dimensional layered bulk media","authors":"M. Muhlestein","doi":"10.1121/2.0001590","DOIUrl":"https://doi.org/10.1121/2.0001590","url":null,"abstract":"Willis coupling, which couples the constitutive equations of an acoustical material, has been applied to acoustic metasurfaces with promising results. However, less is understood about Willis coupling in bulk media. In this paper a multiple-scales homogenization method is used to analyze the source and interpretation of Willis coupling in one-dimensional bulk media without any hidden degrees of freedom, or one-dimensional layered media. As expected from previous work, Willis coupling is shown to arise from geometric asymmetries, but is further shown to depend greatly on the measurement position. In addition, a discussion of the predicted material properties, including Willis coupling, of macroscopically inhomogeneous media is presented.","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43963015","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 use of total harmonic distortion to capture dynamics and spectral characteristics in tribology experiments","authors":"I. Lawal, M. Haberman, M. Brake","doi":"10.1121/2.0001674","DOIUrl":"https://doi.org/10.1121/2.0001674","url":null,"abstract":"","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63519827","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":"Calibrated processing for improved synthetic aperture sonar imagery","authors":"B. Bonnett, H. Schmaljohann, T. Fickenscher","doi":"10.1121/2.0001599","DOIUrl":"https://doi.org/10.1121/2.0001599","url":null,"abstract":"","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63517636","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}
N. Jiménez, J. Ealo, Ruben D. Muelas-Hurtado, A. Duclos, V. Romero-García
{"title":"A helicoidal parametric antenna for subwavelength vortex generation","authors":"N. Jiménez, J. Ealo, Ruben D. Muelas-Hurtado, A. Duclos, V. Romero-García","doi":"10.1121/2.0001629","DOIUrl":"https://doi.org/10.1121/2.0001629","url":null,"abstract":"","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63518108","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}
Oscar Bryan, T. Haines, A. Hunter, R. Hansen, N. Warakagoda
{"title":"Automatic recognition of underwater munitions from multi-view sonar surveys using semi supervised machine learning: a simulation study","authors":"Oscar Bryan, T. Haines, A. Hunter, R. Hansen, N. Warakagoda","doi":"10.1121/2.0001632","DOIUrl":"https://doi.org/10.1121/2.0001632","url":null,"abstract":"","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63518187","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":"Numerical simulation of a heat flow due to thermoacoustic oscillations in a looped tube","authors":"D. Shimizu, Nobumasa Sugimoto","doi":"10.1121/2.0001653","DOIUrl":"https://doi.org/10.1121/2.0001653","url":null,"abstract":"","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63518450","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":"Identification of violin timbre by neural network using acoustic features","authors":"M. Yokoyama, Yuya Ishigaki","doi":"10.1121/2.0001659","DOIUrl":"https://doi.org/10.1121/2.0001659","url":null,"abstract":"","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63518691","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}
Yuqing Li, Fabio Di Giusto, S. Ophem, Stephan Preihs, E. Deckers, J. Peissig
{"title":"Cross-validation of acquisition methods for near-field Head-Related Transfer Functions with a high distance resolution","authors":"Yuqing Li, Fabio Di Giusto, S. Ophem, Stephan Preihs, E. Deckers, J. Peissig","doi":"10.1121/2.0001689","DOIUrl":"https://doi.org/10.1121/2.0001689","url":null,"abstract":"","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63520188","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":"Accuracy of numerically predicted underwater sound of a ship-like structure","authors":"Tjakko Keizer, Renaud Gaudel, Izak Goedbloed","doi":"10.1121/2.0001565","DOIUrl":"https://doi.org/10.1121/2.0001565","url":null,"abstract":"","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63516057","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":"Optimization of underwater acoustic detection of marine mammals and ships using CNN","authors":"Bénédicte Dommergues, E. Cruz, G. Vaz","doi":"10.1121/2.0001608","DOIUrl":"https://doi.org/10.1121/2.0001608","url":null,"abstract":"","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63517661","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}
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