{"created":"2023-06-20T15:14:44.881973+00:00","id":44741,"links":{},"metadata":{"_buckets":{"deposit":"394697d8-8f19-4905-94e4-a444e5ca54ef"},"_deposit":{"created_by":1,"id":"44741","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"44741"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00044741","sets":["1887:1893","1896:1898:1913:1917"]},"author_link":["471008","471010","471009","471012","471011","471007"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Research on Turbo-jet Engine Vibration Induced by Rotor Unbalance(2nd Report)Analysis of Typical Two Spool Fan-jet Engines"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1977-02","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"15","bibliographicVolumeNumber":"488","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所報告"},{"bibliographic_title":"Technical Report of National Aerospace Laboratory TR-488","bibliographic_titleLang":"en"}]}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The previous report(ref.2), confirmed that the unbalance vibration of single spool turbo-jet engines and vibration damping effect of the squeeze film damper bearing could be estimated with sufficient accuracy for design purposes, by theoretical analysis. Following these results, calculations on unbalance vibration in 2 typical models of 2 spool fan-jet engine were made, with consideration given to the different rotor speeds. The results of the analysis showed that- (1)Medium to large size 2 spool fan-jet engines have many resonance frequencies in the speed ranges, and at some speeds and positions, the vibration amplitudes exceed the critical value, without a damper bearings. (2)In most cases, however, the vibration amplitude at the critical speed can be suppressed to within a safe value, using one or two damper bearing(s) at some adequate position(s).","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: NALTR0488000","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-488","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原動機部"},{"subitem_text_value":"航空宇宙技術研究所原動機部"},{"subitem_text_value":"航空宇宙技術研究所原動機部"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Aeroengine Division, National Aerospace Laboratory(NAL)"},{"subitem_text_language":"en","subitem_text_value":"Aeroengine Division, National Aerospace Laboratory(NAL)"},{"subitem_text_language":"en","subitem_text_value":"Aeroengine Division, National Aerospace Laboratory(NAL)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"宮地, 敏雄"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"星谷, 昌二"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"祖父江, 靖"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"MIYACHI, Toshio","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"HOSHIYA, Shoji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SOFUE, Yasushi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"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":"naltr00488.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"naltr00488.pdf","url":"https://jaxa.repo.nii.ac.jp/record/44741/files/naltr00488.pdf"},"version_id":"4d1aff21-9157-46dc-8e93-ca0c20f2bec9"}]},"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":"ロータの不つりあいによって生ずるジェットエンジンの振動の研究 第2報 典型的な2軸ファンジェットエンジンに関する解析","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ロータの不つりあいによって生ずるジェットエンジンの振動の研究 第2報 典型的な2軸ファンジェットエンジンに関する解析"}]},"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":"44741","relation_version_is_last":true,"title":["ロータの不つりあいによって生ずるジェットエンジンの振動の研究 第2報 典型的な2軸ファンジェットエンジンに関する解析"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:51:38.078682+00:00"}