著者

宇佐美 竜夫

出版者

東京大学地震研究所

雑誌

東京大学地震研究所彙報 (ISSN:00408972)

巻号頁・発行日

vol.52, no.2, pp.p333-342, 1978

被引用文献数

3

著者

宇佐美 竜夫

出版者

古今書院

雑誌

地理 (ISSN:05779308)

巻号頁・発行日

vol.22, no.9, pp.p13-47, 1977-09

著者

宇佐美 竜夫

出版者

東京大学地震研究所

雑誌

東京大学地震研究所彙報 (ISSN:00408972)

巻号頁・発行日

vol.44, no.4, pp.1571-1622, 1967-03

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Table of major earthquakes which occurred in and near Japan and accompanied by damages was prepared. The table consists of two parts, the major and auxiliary ones. Earthquakes in Formosa and Korea and outside Japan were omitted from these tables. The only exceptional one is the Chilean earthquake of May, 1960 which brought big damage to Japan.

著者

宇佐美 竜夫

出版者

公益社団法人 日本地震学会

雑誌

地震 第2輯 (ISSN:00371114)

巻号頁・発行日

vol.16, no.3, pp.145-148, 1963-09-30 (Released:2010-03-11)

参考文献数

2

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The equation of equilibrium of a homogeneous and isotropic elastic medium is solved for the orthogonal curvilinear coordinates of two dimensions under the condition that Laplace's equation is separable. Coordinates systems satisfying these conditions are Cartesian, cylindrical, elliptic cylindrical and parabolic cylindrical ones.First, solutions of equation of motion is obtained. Then, making frequency in these solutions to zero, the equation of equilibrium is solved.

著者

宇佐美 竜夫

出版者

公益社団法人 日本地震学会

雑誌

地震 第2輯 (ISSN:00371114)

巻号頁・発行日

vol.21, no.2, pp.143-146, 1968-08-30 (Released:2010-03-11)

参考文献数

3

著者

宇佐美 竜夫

出版者

公益社団法人 日本地震学会

雑誌

地震 第2輯 (ISSN:00371114)

巻号頁・発行日

vol.13, no.2, pp.97-112, 1960-07-30 (Released:2010-03-11)

参考文献数

6

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The equation of equilibrium of a homogeneous and isotropic elastic body was solved in the prolate and oblate spheroidal coordinates for the cases of m=0, 1 and 2. The solutions consist of three parts: the first part (Eq. (17)) satisfy Δ=0 and ω=0, the second part (Eq. (18)) Δ=0 and ω≠0 and the third part (Eqs. (80), (82), (83)) Δ≠0 and ω≠0.

著者

宇佐美 竜夫

出版者

公益社団法人 日本地震学会

雑誌

地震 第2輯 (ISSN:00371114)

巻号頁・発行日

vol.14, no.1, pp.18-28, 1961-03-25 (Released:2010-03-09)

参考文献数

8

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It is clear from the equation of motion of elastic medium expressed in vector form that there are several different solutions (expressions) which satisfy the condition Δ=0 (§3).In this paper, 8 different expressions (at least 4 of which are mutually independent) are obtained (§4). Next, by using one of these solutions, the author got two independent solutions for a problem of motion in an infinite elastic medium when displacements (or stresses) are given on the wall of a cavity in that medium (§5). In such a problem it is proved that we cannot get unique solution as long as we use the so-called Sezawa's solution ((17), (18), (4)) only (§6).

著者

宇佐美 竜夫 狩野 京一 佐藤 泰夫

出版者

公益社団法人 日本地震学会

雑誌

地震 第2輯 (ISSN:00371114)

巻号頁・発行日

vol.15, no.4, pp.261-269, 1962-12-25 (Released:2010-03-11)

参考文献数

1

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It is known that the equation of motion for isotropic and homogeneous elastic medium has 8 solutions having different expressions which satisfy the condition Δ=0. Six of these solutions are found to be expressed by the linear combination of the other two which can be considered as the most basic ones. Some other revisions are made on the former paper (Zisin; vol. 14 (1961), pp. 18-28).

著者

佐藤 泰夫 宇佐美 竜夫

出版者

公益社団法人 日本地震学会

雑誌

地震 第2輯 (ISSN:00371114)

巻号頁・発行日

vol.17, no.3, pp.167-169, 1964-09-25 (Released:2010-03-11)

参考文献数

1