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1. Soft Core Spectrum Splitting of the Torsional Oscillation of an Elastic Sphere and Related Problems
https://doi.org/10.15083/0000033684
https://doi.org/10.15083/0000033684589d04da-cd29-4e05-aaa0-260afeb2b7b9
名前 / ファイル | ライセンス | アクション |
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ji0421001.pdf (528.0 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2008-05-30 | |||||
タイトル | ||||||
タイトル | 1. Soft Core Spectrum Splitting of the Torsional Oscillation of an Elastic Sphere and Related Problems | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15083/0000033684 | |||||
ID登録タイプ | JaLC | |||||
その他のタイトル | ||||||
その他のタイトル | 1. 軟い核の存在による弾性球の捩れ振動スペクトルの分裂とこれに関連した問題 | |||||
著者 |
SATO, Yasuo
× SATO, Yasuo |
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著者別名 | ||||||
識別子 | 131590 | |||||
識別子Scheme | WEKO | |||||
姓名 | 佐藤, 泰夫 | |||||
著者所属 | ||||||
著者所属 | Earthquake Research Institute | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The torsional oscillation of an earth model consisting of a homogeneous mantle and a soft homogeneous core is studied and the following matters are discussed and proved. (1) When there is a soft core those modes are predominant which have nearly equal frequencies to that of a liquid core model. (2) These modes are very high radial higher modes, and a simple formula that gives the order number of them is presented. (3) Consecutive spectrum lines far stronger than the other ones sometimes have nearly equal amplitudes and frequencies, which fact proves to be a kind of spectrum splitting phenomenon. (4) Depending on the density and rigidity ratios of the core and mantle observable frequency is higher or lower than that of a liquid core model, and there is also a possibility of two spectrum peaks having nearly equal amplitudes. This phenomenon will be of use for the determination of the core rigidity by means of the observation of free oscillation periods. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 一様なマントルと,一様で軟い核を特つ弾性球の捩れ振動に関して次のことが論ぜられた.1)核の剛性が小さい時には,基本振動周期は極めて長いが,実際に表はれるのは,核が流体の時とほとんど等しい周期をもつた振動である.2)これらの振動は半径方向に多くの節を持つ高次のモードであり,その次数は簡単な公式によつて求めることができる. | |||||
書誌情報 |
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo 巻 42, 号 1, p. 1-10, 発行日 1964-05-30 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00408972 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00162258 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
日本十進分類法 | ||||||
主題 | 453 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | 東京大学地震研究所 | |||||
出版者別名 | ||||||
Earthquake Research Institute, University of Tokyo |