{"created":"2023-06-20T15:16:11.234391+00:00","id":46296,"links":{},"metadata":{"_buckets":{"deposit":"bb3e5841-de3c-4203-b1f5-9fa4da603a93"},"_deposit":{"created_by":1,"id":"46296","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"46296"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00046296","sets":["1398:1408:2022","1887:1893","9:10:11:2021"]},"author_link":["513665","513661","513663","513658","513660","513662","513664","513659"],"item_16_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Improvement on airtightness of the super-pressure balloon by double-layer gore"}]},"item_16_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2020-02-13","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"24","bibliographicPageStart":"9","bibliographicVolumeNumber":"JAXA-RR-19-002","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構研究開発報告: 大気球研究報告"},{"bibliographic_title":"JAXA Research and Development Report","bibliographic_titleLang":"en"}]}]},"item_16_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"スーパープレッシャー気球は、気球内部の圧力を常に大気圧よりも高く保つことによって、日照の有無にかかわらず浮力を一定に保つ気球である。気球の皮膜は、差圧に耐えることに加えて、気密性が要求される。気密性は皮膜のガス透過率に加え、皮膜の欠陥によっても悪化するため、皮膜の素材や製造工程の品質管理が高いレベルで必要とされている。本論文では、気球の皮膜を二層化することで気密にする方法を提案する。二層の皮膜を用いて気球では、内層が外層にガス圧力によって押しつけられるため、内欠陥から漏れ出したガスの流路である層間の流量が低減され、気密性が向上すると考えられる。この原理をポリエチレンの袋とゴム気球を用いた実験で実証した後、体積10 m3 のポリエチレン製のスーパープレッシャー気球の中にゴム気球を入れる実験を実施した。元々、この気球は1,000 Pa の差圧をかけた際のガス漏れ率は4,000 Pa・h(exp -1) であった。ゴム気球を入れた後、3 Pa・h(exp -1) と抑制された。このガス漏れ率はゴムの透過率からの予想値、7 Pa・h(exp -1) よりも少し小さい値である。この手法がスーパープレッシャー気球の気密性の向上に有効であることが確認された。","subitem_description_type":"Abstract"}]},"item_16_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The super-pressure balloon is a balloon keeping its absolute pressure higher than the atmospheric pressure to keep its lift constant, without depending on the sun irradiation. In addition to withstand the differential pressure, the balloon envelope is required to be airtight. Since the airtightness is also broken by decits in the envelope, in addition to its gas permeability, the high level of the quality control of the envelope material and its manufacturing process is required. Here, we propose to use a double-layer film as the balloon envelope to make it airtight. It is considered that the airtightness will be improved by the following mechanism; the inner layer is pressed to the outer layer by the gas inside the inner layer to make small gas passage among the two layers where is the flow channel of the leaked gas through decits in the inner layer. After confirming its principle by experiments using polyethylene bags and rubber balloons, we applied the technique to a 10 m3 super-pressure balloon with a polyethylene film by inserting a rubber balloon inside the balloon. Originally, the gas leak rate of the balloon was the level of 4,000 Pa・h(exp -1), when applying the differential pressure of 1,000 Pa. After inserting the rubber balloon, its gas leak rate was suppress to the level of 3 Pa・h(exp -1). The leak rate is slightly smaller than 7 Pa・h(exp -1), which is the leak rate expected from the permeability of the rubber. The effectiveness of the method as the application to the super-pressure balloon was confirmed.","subitem_description_type":"Other"}]},"item_16_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_16_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_16_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA1930015002","subitem_description_type":"Other"}]},"item_16_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-RR-19-002","subitem_description_type":"Other"}]},"item_16_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.20637/JAXA-RR-19-002/0002","subitem_identifier_reg_type":"JaLC"}]},"item_16_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構(JAXA)"}]},"item_16_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_16_source_id_22":{"attribute_name":"ISSNONLINE","attribute_value_mlt":[{"subitem_source_identifier":"2433-2216","subitem_source_identifier_type":"ISSN"}]},"item_16_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)"},{"subitem_text_value":"東海大学"},{"subitem_text_value":"東京工業大学"},{"subitem_text_value":"明治大学"}]},"item_16_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)"},{"subitem_text_language":"en","subitem_text_value":"Tokai University"},{"subitem_text_language":"en","subitem_text_value":"Tokyo Institute of Technology"},{"subitem_text_language":"en","subitem_text_value":"Meiji University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"斎藤, 芳隆"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中篠, 恭一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"秋田, 大輔"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"松尾, 卓摩"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Saito, Yoshitaka","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakashino, Kyoichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Akita, Daisuke","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Matsuo, Takuma","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":"2020-03-26"}],"displaytype":"detail","filename":"AA1930015002.pdf","filesize":[{"value":"6.3 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"AA1930015002.pdf","url":"https://jaxa.repo.nii.ac.jp/record/46296/files/AA1930015002.pdf"},"version_id":"a76947c4-ec02-4142-bc5f-a7495d18c884"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Scientific Balloon","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Super-pressure Balloon","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Membrane Structure","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":"皮膜の二層化によるスーパープレッシャー気球の気密性の向上","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"皮膜の二層化によるスーパープレッシャー気球の気密性の向上"}]},"item_type_id":"16","owner":"1","path":["1893","2021","2022"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-02-13"},"publish_date":"2020-02-13","publish_status":"0","recid":"46296","relation_version_is_last":true,"title":["皮膜の二層化によるスーパープレッシャー気球の気密性の向上"],"weko_creator_id":"1","weko_shared_id":1},"updated":"2023-06-20T20:03:20.766864+00:00"}