{"created":"2021-03-01T07:21:07.070141+00:00","id":41636,"links":{},"metadata":{"_buckets":{"deposit":"faf1d7d3-19f2-413b-b823-341e58c37c04"},"_deposit":{"id":"41636","owners":[],"pid":{"revision_id":0,"type":"depid","value":"41636"},"status":"published"},"_oai":{"id":"oai:tsukuba.repo.nii.ac.jp:00041636","sets":["152:5575","3:62:5587:5967"]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2017-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"8","bibliographicPageEnd":"1366","bibliographicPageStart":"1345","bibliographicVolumeNumber":"46","bibliographic_titles":[{"bibliographic_title":"Earthquake engineering and structural dynamics"}]}]},"item_5_creator_3":{"attribute_name":"著者別名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"浅井, 健彦"}],"nameIdentifiers":[{},{},{}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"This paper presents a passive vertical quasi-zero-stiffness vibration isolator intended for relatively small objects. The present isolator has features of compactness, long stroke, and adjustability to various load capabilities. To realize these features, we use constant-force springs, which sustain constant load regardless of their elongation, and propose a variable ellipse curve mechanism that is inspired by the principle of ellipsographs. The variable ellipse curve mechanism can convert the restoring force of the horizontally placed constant-force springs to the vertical restoring force of the vibration isolator. At the same time as converting the direction, the vertical restoring force can be adjusted by changing the ratio of the semi-minor axis to the semi-major one of the ellipse. In this study, a prototype of a class of quasi-zero-stiffness vibration isolator with the proposed variable ellipse curve mechanism is created. Shaking table tests are performed to demonstrate the efficacy of the present mechanism, where the prototype is subjected to various sinusoidal and earthquake ground motions. It is demonstrated through the shaking table tests that the prototype can reduce the response acceleration within the same specified tolerance even when the mass of the vibration isolated object is changed","subitem_description_type":"Abstract"}]},"item_5_publisher_27":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Wiley"}]},"item_5_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1002/eqe.2859","subitem_relation_type_select":"DOI"}}]},"item_5_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2017 John Wiley & Sons, Ltd."},{"subitem_rights":"This is the peer reviewed version of the following article: Earthquake Engng Struct. Dyn. 2017; 46:1345–1366, which has been published in final form at https://doi.org/10.1002/eqe.2859. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving"}]},"item_5_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"author"}]},"item_5_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00988847","subitem_source_identifier_type":"ISSN"}]},"item_5_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA00680170","subitem_source_identifier_type":"NCID"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Asai, Takehiko"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Araki, Yoshikazu"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kimura, Kosuke"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Masui, Takeshi"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2018-08-01"}],"displaytype":"detail","filename":"EESD_46-8.pdf","filesize":[{"value":"3.5 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"EESD_46-8","url":"https://tsukuba.repo.nii.ac.jp/record/41636/files/EESD_46-8.pdf"},"version_id":"baf9e18f-6c37-4070-aa95-d560cfcf9e96"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Adjustable vertical vibration isolator with a variable ellipse curve mechanism","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Adjustable vertical vibration isolator with a variable ellipse curve mechanism"}]},"item_type_id":"5","owner":"1","path":["5575","5967"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-06-20"},"publish_date":"2017-06-20","publish_status":"0","recid":"41636","relation_version_is_last":true,"title":["Adjustable vertical vibration isolator with a variable ellipse curve mechanism"],"weko_creator_id":"1","weko_shared_id":5},"updated":"2022-04-27T09:12:31.809799+00:00"}