{"created":"2021-03-01T06:16:08.026535+00:00","id":13210,"links":{},"metadata":{"_buckets":{"deposit":"7ed3d7f6-317e-48fe-a22f-77149c812b10"},"_deposit":{"id":"13210","owners":[],"pid":{"revision_id":0,"type":"depid","value":"13210"},"status":"published"},"_oai":{"id":"oai:soar-ir.repo.nii.ac.jp:00013210","sets":[]},"author_link":["40075"],"control_number":"13210","item_10_biblio_info_6":{"attribute_name":"\u66f8\u8a8c\u60c5\u5831","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1954-03-30","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"22","bibliographicPageStart":"7","bibliographicVolumeNumber":"3","bibliographic_titles":[{"bibliographic_title":"\u4fe1\u5dde\u5927\u5b66\u5de5\u5b66\u90e8\u7814\u7a76\u5831\u544a"}]}]},"item_10_description_20":{"attribute_name":"\u6284\u9332","attribute_value_mlt":[{"subitem_description":"A disc whose thickness varies as 1/r{ \u03b1, is usually used as a blade wheel in steam turbine practices. It may probably be anticipated that the disc performs a torsional vibration, when it is subjected to variations in its speed owing to the load fluctuations of a turbine. Therefore this treatment has an important significance to study theoretically the characteristics of such vibrations and the nature of resonance phenomena in a forced vibration. In the 1st part (I), the differential equation of the torsional vibration of such a disc is deduced and also the solution given. In the 2nd part (II), as some applications of the solutions mentioned above, the frequency equations are found according to three different boundary conditions. In addition, a forced vibration is dealt with and the nature of its resonance is fully studied, when a periodically varying external twisting moment is applied to the inner edge of a disc. Finally in the 3rd part (III) an elastic disc coupled to one rigid mass by an elastic shaft is considered. Both free and forced vibrations of such a system are satisfactorily studied. The latter case resembles a single cylinder reciprocating engine that drives a disc which corresponds, so to speak, to the vibration of a fan impeller.The results of our numerical calculations of such torsional vibrations given above will be reported later in the next paper. \u539a\u3055\u304ch=\u03b2r{ \u03b1\u3067\u8868\u3055\u308c\u308b\u5186\u677f\u306f\uff0c\u84b8\u6c7d\u30bf\u30fc\u30d3\u30f3\u306e\u7ffc\u8eca\u3068\u3057\u3066\uff0c\u5b9f\u969b\u4e0a\u3088\u304f\u4f7f\u7528\u3055\u308c\u3066\u3090\u308b\uff082\uff09\u3002\u3053\u306e\u5186\u677f\u306e\u6a2a\u632f\u52d5\u306b\u5c31\u3044\u3066\u306f\u7406\u8ad6\u7684\uff083\uff09\u306b\u3082\u53c9\u5b9f\u9a13\u7684\uff084\uff09\u306b\u3082\u5145\u5206\u306a\u7814\u7a76\u304c\u306a\u3055\u308c\u3066\u3090\u308b\u3002\u7136\u3057\u305d\u306e\u6369\u308c\u632f\u52d5\u306f\u5b9f\u969b\u306b\u901f\u5ea6\u5909\u52d5\u306e\u969b\u306b\u8d77\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\uff0c\u76f8\u5f53\u91cd\u8981\u306a\u4e8b\u9805\u3067\u3042\u308b\u306b\u4fc2\u3089\u305a\uff0c\u7b46\u8005\u306e\u77e5\u308c\u308b\u7bc4\u56f2\u3067\u306f\uff0c\u305d\u306e\u7406\u8ad6\u7684\u7814\u7a76\u3082\u672a\u3060\u898b\u5f53\u3089\u306a\u3044\u69d8\u3067\u3042\u308b\u3002\u304b\u309d\u308b\u610f\u6627\u3067\u5186\u677f\u306e\u6369\u308c\u632f\u52d5\u3092\u7406\u8ad6\u7684\u306b\u53d6\u6271\u3072\uff0c\u632f\u52d5\u306e\u672c\u8cea\u3092\u7a76\u660e\u3057\u305f\u306e\u3067\u3042\u308b\u3002","subitem_description_type":"Abstract"}]},"item_10_description_30":{"attribute_name":"\u8cc7\u6e90\u30bf\u30a4\u30d7\uff08\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u7a2e\u985e\uff09","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_10_description_5":{"attribute_name":"\u5f15\u7528","attribute_value_mlt":[{"subitem_description":"\u4fe1\u5dde\u5927\u5b66\u5de5\u5b66\u90e8\u7814\u7a76\u5831\u544a 3: 7-22(1954)","subitem_description_type":"Other"}]},"item_10_publisher_4":{"attribute_name":"\u51fa\u7248\u8005","attribute_value_mlt":[{"subitem_publisher":"\u4fe1\u5dde\u5927\u5b66\u5de5\u5b66\u90e8"}]},"item_10_source_id_40":{"attribute_name":"\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID","attribute_value_mlt":[{"subitem_source_identifier":"AN00121239","subitem_source_identifier_type":"NCID"}]},"item_1627890569677":{"attribute_name":"\u51fa\u7248\u30bf\u30a4\u30d7","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"\u8457\u8005","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"\u7af9\u591a,  \u52c7"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"\u30d5\u30a1\u30a4\u30eb\u60c5\u5831","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2015-09-28"}],"displaytype":"detail","filename":"Engineering03-02.pdf","filesize":[{"value":"631.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Engineering03-02.pdf","url":"https://soar-ir.repo.nii.ac.jp/record/13210/files/Engineering03-02.pdf"},"version_id":"5cc586bc-14e4-4a4d-8cb4-40afbaaaa44c"}]},"item_language":{"attribute_name":"\u8a00\u8a9e","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"\u8cc7\u6e90\u30bf\u30a4\u30d7","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"\u539a\u3055\u304ch=\u03b2r-\u03b1\u3067\u8868\u3055\u308c\u308b\u5186\u677f\u306e\u632f\u308c\u632f\u52d5(\u7b2c1\u5831)","item_titles":{"attribute_name":"\u30bf\u30a4\u30c8\u30eb","attribute_value_mlt":[{"subitem_title":"\u539a\u3055\u304ch=\u03b2r-\u03b1\u3067\u8868\u3055\u308c\u308b\u5186\u677f\u306e\u632f\u308c\u632f\u52d5(\u7b2c1\u5831)","subitem_title_language":"ja"},{"subitem_title":"THE TORTIONAL VIBRATION OF A DISC WITH HYPERBOLIC PROFILE (1ST REPORT)","subitem_title_language":"en"}]},"item_type_id":"10","owner":"1","path":["1221/1223/1224/1304"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2011-01-05"},"publish_date":"2011-01-05","publish_status":"0","recid":"13210","relation_version_is_last":true,"title":["\u539a\u3055\u304ch=\u03b2r-\u03b1\u3067\u8868\u3055\u308c\u308b\u5186\u677f\u306e\u632f\u308c\u632f\u52d5(\u7b2c1\u5831)"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-07-05T01:36:26.466435+00:00"}