{"created":"2023-11-06T02:29:53.473051+00:00","id":2000287,"links":{},"metadata":{"_buckets":{"deposit":"b8d66622-5339-4b9e-bfe9-f0d9ab6e064f"},"_deposit":{"created_by":9,"id":"2000287","owners":[9],"pid":{"revision_id":0,"type":"depid","value":"2000287"},"status":"published"},"_oai":{"id":"oai:miyazaki-u.repo.nii.ac.jp:02000287","sets":["73","73:36","73:36:330","73:36:330:1699234090549"]},"author_link":["30347","28124"],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2023-10-27","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"80","bibliographicPageStart":"77","bibliographicVolumeNumber":"52","bibliographic_titles":[{"bibliographic_title":"宮崎大学工学部紀要","bibliographic_titleLang":"ja"},{"bibliographic_title":"Memoirs of Faculty of Engineering, University of Miyazaki","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Recently, noise problems often accur in a building that has been repurposed and reused, so-called conversion architecture. One of the causes of this probrem is structure-borne sound in pump piping system. Vibration reduction method that involves installing two flexible joints in series has been found to be useful for countermeasures against structure-borne sound in pump piping system. This technique is very useful compared to the general noise reduction method which installs many vibration isolators in the whole system. However, the effect of reducing sound wave propagation in piping has not been completely explained yet. In this study, the simple apparatus having the straight-line piping is treated, and the reduction of sound wave propagation in piping by installing flexible joints is verified analytically and experimentally. The numerical analysis and experimental results confirm that sound wave propagation in piping is reduced by the difference in sound velocity between the pipe and joint. Furthermore, the length of the joint and between joints is important reducing sound wave propagation in piping.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宮崎大学工学部","subitem_publisher_language":"ja"},{"subitem_publisher":"Faculty of Engineering, University of Miyazaki","subitem_publisher_language":"en"}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA00732558","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"05404924","subitem_source_identifier_type":"ISSN"}]},"item_10002_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"神谷, 陸","creatorNameLang":"ja"},{"creatorName":"カミヤ, リク","creatorNameLang":"ja-Kana"},{"creatorName":"Kamiya, Riku","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"0000000106573887","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"https://isni.org/isni/0000000106573887"}],"affiliationNames":[{"affiliationName":"宮崎大学","affiliationNameLang":"ja"},{"affiliationName":"University of Miyazaki","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"盆子原, 康博","creatorNameLang":"ja"},{"creatorName":"ボンコバラ, ヤスヒロ","creatorNameLang":"ja-Kana"},{"creatorName":"Bonkobara, Yasuhiro","creatorNameLang":"en"}],"familyNames":[{"familyName":"盆子原","familyNameLang":"ja"},{"familyName":"ボンコバラ","familyNameLang":"ja-Kana"},{"familyName":"Bonkobara","familyNameLang":"en"}],"givenNames":[{"givenName":"康博","givenNameLang":"ja"},{"givenName":"ヤスヒロ","givenNameLang":"ja-Kana"},{"givenName":"Yasuhiro","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"28124","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"10294886","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=10294886"}]},{"creatorNames":[{"creatorName":"松尾, 理央","creatorNameLang":"ja"},{"creatorName":"マツオ, リオ","creatorNameLang":"ja-Kana"},{"creatorName":"Matsuo, Rio","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"楢原, 貴之","creatorNameLang":"ja"},{"creatorName":"ナラハラ, タカユキ","creatorNameLang":"ja-Kana"},{"creatorName":"Narahara, Takayuki","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"濵畑, 貴之","creatorNameLang":"ja"},{"creatorName":"ハマハタ, タカユキ","creatorNameLang":"ja-Kana"},{"creatorName":"Hamahata, Takayuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"濵畑","familyNameLang":"ja"},{"familyName":"ハマハタ","familyNameLang":"ja-Kana"},{"familyName":"Hamahata","familyNameLang":"en"}],"givenNames":[{"givenName":"貴之","givenNameLang":"ja"},{"givenName":"タカユキ","givenNameLang":"ja-Kana"},{"givenName":"Takayuki","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"30347","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2023-11-06"}],"filename":"工学部紀要52号077.pdf","filesize":[{"value":"1.9 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文","objectType":"fulltext","url":"https://miyazaki-u.repo.nii.ac.jp/record/2000287/files/工学部紀要52号077.pdf"},"version_id":"c63e99f2-2049-4cb2-bccc-919fe4ca775a"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Noise control","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Structure-borne sound","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Pump piping system","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Flexible joint","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Suppression Effect of Two Flexible Joints for Underwater Sound Propagation","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Suppression Effect of Two Flexible Joints for Underwater Sound Propagation","subitem_title_language":"en"},{"subitem_title":"フレキシブル継手の２段設置による管内水中音伝播の抑制効果","subitem_title_language":"ja"}]},"item_type_id":"10002","owner":"9","path":["73","36","330","1699234090549"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-11-01"},"publish_date":"2023-11-01","publish_status":"0","recid":"2000287","relation_version_is_last":true,"title":["Suppression Effect of Two Flexible Joints for Underwater Sound Propagation"],"weko_creator_id":"9","weko_shared_id":-1},"updated":"2025-01-15T05:03:46.147906+00:00"}