{"created":"2023-06-20T15:14:33.758537+00:00","id":44547,"links":{},"metadata":{"_buckets":{"deposit":"4aee97d8-895b-4ad3-91ba-3750e3a63196"},"_deposit":{"created_by":1,"id":"44547","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"44547"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00044547","sets":["1887:1893","1896:1898:1913:1917"]},"author_link":["470008","470009"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Studies of IDPF Servovalve Appropriate for Gimbaled Engine Positioning Hydraulic Control Systems"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1972-11","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"69","bibliographicVolumeNumber":"303","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所報告"},{"bibliographic_title":"Technical Report of National Aerospace Laboratory TR-303","bibliographic_titleLang":"en"}]}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"One of the most important problems associated with the design of liquid rocket thrust chamber positioning systems is compensation of resonances which arise from the mechanical compliance in gimbaled engine supporting mechanisms. Compensation of resonances is mandatory for the stabilization of the rocket attitude control systems. IDPF servovalve is very appropriate for this problem, as shown in §3. The present study discusses the design efforts on IDPF servovalve, which is composed of a torque-motor, a nozzle-flapper, a spool-valve and IDPF hydromechanical compensation network. In §4, §5 and §7, we concern with the analytical design of high-performance flow-control servovalves. For this, the typical servovalve is analyzed, and the block-diagram is presented. Design conditions for maximizing the servovalve gain are derived, and what lap-type is best as the spool-valve is discussed. Then, conditions for designing the high-performance servovalve are obtained from fundamental considerations of its stability and frequency response. Under these analyses, a design procedure is proposed, and a numerical design is presented to illustrate the effectiveness of this procedure. Also, in §6, IDPF network composed of orifice, piston and springs is analyzed, and its transfer function is derived, which can be described approximately as {(KD-KC)TDS-KC}/(TDS+1). In §8, we present the blockdiagram of the gimbaled engine positioning hydraulic control systems making use of IDPF servovalve to analyze its static and dynamic characteristics. On the basis of these analyses, the technique for determining the values of IDPF compensation constants (KC, KD and TD) so as to be able to control the gimbaled engine nonoscillatority, rapidly and accurately is proposed. The validity of this technique is verified by analog computer simulation. In this manner, the design method of IDPF servovalve is established. Futhermore, in §9, we design a hydraulic servo which well realizes the gimbaled engine positioning system with IDPF servovalve. By means of this device, it is experimentally verified that IDPF servovalve has the nice function to compensate for resonances of gimbaled engine supporting mechanisms. Also, an analog computer-experimental device simulation of the rocket pitch attitude control system by the gimbaled engine is presented to illustrate the effectiveness of IDPF servovalve. From these facts, the validity of the method for designing IDPF servovalve is concluded. The results in this paper are general in nature and might apply just as well to a system that controls a massive antenna or a massive table on a milling machine.","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: NALTR0303000","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-303","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計測部"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Instrumentation and Control Division, National Aerospace Laboratory(NAL)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"畑山, 茂樹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"HATAYAMA, Shigeki","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":"naltr00303.pdf","filesize":[{"value":"5.5 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"naltr00303.pdf","url":"https://jaxa.repo.nii.ac.jp/record/44547/files/naltr00303.pdf"},"version_id":"d6eff8a8-88eb-48c6-b719-27478496f3bc"}]},"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":"ジンバルエンジン駆動用油圧制御系に適したIDPFサーボバルブの研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ジンバルエンジン駆動用油圧制御系に適したIDPFサーボバルブの研究"}]},"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":"44547","relation_version_is_last":true,"title":["ジンバルエンジン駆動用油圧制御系に適したIDPFサーボバルブの研究"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:55:11.947672+00:00"}