Yanni Zhang, Manlin Tong, Xiaoting Rui, Guoping Wang, Fufeng Yang
{"title":"用于宽带低频水下声学的深亚波长和抗静水压力元吸收器","authors":"Yanni Zhang, Manlin Tong, Xiaoting Rui, Guoping Wang, Fufeng Yang","doi":"10.35848/1882-0786/ad622e","DOIUrl":null,"url":null,"abstract":"\n By embedding center-supported graded-circular-plates (CS-GCPs) into an elastomer, a deep-subwavelength and hydrostatic-pressure-resistant meta-absorber was designed and manufactured for sound absorption (SA) under hydrostatic pressure. The meta-absorber exhibits excellent SAs (>0.842, 0.927 on average) within 500-2000 Hz and quasi-perfect SA (>0.94) within 500-700 Hz with thickness 2% of the sound wavelength. This excellent SA (0.91 on average) is verified experimentally within 1-10 kHz, and maintained high (0.84 on average) under hydrostatic pressure of 1.0 MPa. The exotic functionality arises from enriched local-dynamics by the CS-GCPs and pressure-resistance of the center-support, and provides an effective solution for ultra-broadband low-frequency underwater sound control.","PeriodicalId":503885,"journal":{"name":"Applied Physics Express","volume":"79 2","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Deep-subwavelength and hydrostatic-pressure-resistant meta-absorber for broadband low-frequency underwater sound\",\"authors\":\"Yanni Zhang, Manlin Tong, Xiaoting Rui, Guoping Wang, Fufeng Yang\",\"doi\":\"10.35848/1882-0786/ad622e\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n By embedding center-supported graded-circular-plates (CS-GCPs) into an elastomer, a deep-subwavelength and hydrostatic-pressure-resistant meta-absorber was designed and manufactured for sound absorption (SA) under hydrostatic pressure. The meta-absorber exhibits excellent SAs (>0.842, 0.927 on average) within 500-2000 Hz and quasi-perfect SA (>0.94) within 500-700 Hz with thickness 2% of the sound wavelength. This excellent SA (0.91 on average) is verified experimentally within 1-10 kHz, and maintained high (0.84 on average) under hydrostatic pressure of 1.0 MPa. The exotic functionality arises from enriched local-dynamics by the CS-GCPs and pressure-resistance of the center-support, and provides an effective solution for ultra-broadband low-frequency underwater sound control.\",\"PeriodicalId\":503885,\"journal\":{\"name\":\"Applied Physics Express\",\"volume\":\"79 2\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Physics Express\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.35848/1882-0786/ad622e\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics Express","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.35848/1882-0786/ad622e","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Deep-subwavelength and hydrostatic-pressure-resistant meta-absorber for broadband low-frequency underwater sound
By embedding center-supported graded-circular-plates (CS-GCPs) into an elastomer, a deep-subwavelength and hydrostatic-pressure-resistant meta-absorber was designed and manufactured for sound absorption (SA) under hydrostatic pressure. The meta-absorber exhibits excellent SAs (>0.842, 0.927 on average) within 500-2000 Hz and quasi-perfect SA (>0.94) within 500-700 Hz with thickness 2% of the sound wavelength. This excellent SA (0.91 on average) is verified experimentally within 1-10 kHz, and maintained high (0.84 on average) under hydrostatic pressure of 1.0 MPa. The exotic functionality arises from enriched local-dynamics by the CS-GCPs and pressure-resistance of the center-support, and provides an effective solution for ultra-broadband low-frequency underwater sound control.
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