{"created":"2023-06-20T15:15:18.955453+00:00","id":45392,"links":{},"metadata":{"_buckets":{"deposit":"7c9b3809-9e93-491e-9c59-5733724f0265"},"_deposit":{"created_by":1,"id":"45392","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"45392"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00045392","sets":["1887:1893","1896:1898:1913:1917"]},"author_link":["474532","474533"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Evaluation of Acoustic Impedance Models for a Perforated Plate"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1991-12","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"35","bibliographicVolumeNumber":"1133","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所報告"},{"bibliographic_title":"Technical Report of National Aerospace Laboratory TR-1133","bibliographic_titleLang":"en"}]}]},"item_3_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"航空エンジンのダクトライニングには多孔板ハネカム吸音ライナが多用されている。これを設計するためには多孔板の音響インピーダンスを予測する必要があり,これまでこの目的のために,いくつかのモデル(半実験式)が提案されて来た。本報告では代表的な音響インピーダンスモデルを用いて2次元吸音ダクトの減音量を予測し,その予測値と流路音響試験装置(flow duct facility)を用いた実験結果との比較に基づいて実用的に妥当と考えられる音響インピーダンスの予測方法を提示した。","subitem_description_type":"Abstract"}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The construction formed by bonding a perforated plate to honeycomb backed by an impervious plate has been widely used to acoustically line aircraft engine ducts. Several semi-empirical models have been proposed to predict the acoustic impedance of perforated plates. In this study, the impedance models were used to theoretically estimate the sound attenuations in a two-dimensional duct with sheared flow. A reasonable impedance model was recommended by comparing the estimated and the experimental attenuation observed using a flow duct facility. A practical calculation method of acoustic impedance was also described.","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: NALTR1133000","subitem_description_type":"Other"}]},"item_3_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: NAL TR-1133","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"航空宇宙技術研究所"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"National Aerospace Laboratory(NAL)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0389-4010","subitem_source_identifier_type":"ISSN"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"航空宇宙技術研究所熱流体力学部"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Thermofluid Dynamics Division, National Aerospace Laboratory(NAL)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"渡辺, 実"}],"nameIdentifiers":[{"nameIdentifier":"474532","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"WATANABE, Minoru","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"474533","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-29"}],"displaytype":"detail","filename":"naltr01133.pdf","filesize":[{"value":"2.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"naltr01133.pdf","url":"https://jaxa.repo.nii.ac.jp/record/45392/files/naltr01133.pdf"},"version_id":"2e8b97c7-0f93-44e8-83ce-dbc41457bf17"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"liner;  perforated plate;  acoustic impedance;  acoustic duct;  sound attenuation;  impedance model","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":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"多孔板に対する音響インピーダンスモデルの評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"多孔板に対する音響インピーダンスモデルの評価"}]},"item_type_id":"3","owner":"1","path":["1893","1917"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"45392","relation_version_is_last":true,"title":["多孔板に対する音響インピーダンスモデルの評価"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:40:18.751011+00:00"}