| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2015-03-26 |
| タイトル |
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タイトル |
コイルばねを傳わる彈性波について |
| 言語 |
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言語 |
jpn |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
| その他のタイトル（英） |
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その他のタイトル |
On the Elastic Waves Propagated along Coil Springs |
| 著者 |
吉村, 慶丸
村田, 與四郎
YOSHIMURA, Yoshimaru
MURATA, Yoshiro
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| 著者所属 |
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東京大學理工學研究所 |
| 著者所属 |
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東京大學理工學研究所 |
| 著者所属（英） |
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en |
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THE INSTITUTE OF SCIENCE AND TECHNOLOGY, UNIVERSITY OF TOKYO |
| 著者所属（英） |
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en |
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THE INSTITUTE OF SCIENCE AND TECHNOLOGY, UNIVERSITY OF TOKYO |
| 出版者 |
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出版者 |
東京大学理工学研究所 |
| 書誌情報 |
東京大學理工學研究所報告
巻 6,
号 1,
p. 27-35,
発行日 1952-02-28
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| 抄録（英） |
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内容記述タイプ |
Other |
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内容記述 |
In treating the problem of surging and shock absorbing action of a coil spring, the velocities of waves propagated along the spring are usually assumed to have constant values √<K/M>, independent of their wave lengths, where K denotes spring constant for extension or torsion, M the mass, per unit length of the spring axis. This assumption, which is equivalent to replacing the spring by a straight rod with the same elasticity and density as the spring, is considered to be correct approximately for very long waves, but the behavior of the spring for such short waves or impulses as the above examples is not known to us. This paper clarifies these points by analysing the dispersive characters of the coil spring. According to the results, there are three waves, which coexist and couple with each other ; their velocities along the wire are v_1, v_2 and v_3 respectively. v_2- and v_2-waves correspond to the longitudinal waves along the axis of the spring, and v_3-wave the rotational wave. v_1 and v_3 have constant values √<K/M> for long wave length, and very small minimums at the wave length equal to the coil circumference. For very short wave length, the curvature of the wire may be neglected reasonably. (Received January 9, 1952) |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0371-6090 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AN00162611 |
| 資料番号 |
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内容記述タイプ |
Other |
|
内容記述 |
資料番号: SA1511533000 |
SA1511533.pdf (834.1 kB)
