掲載雑誌(和): 土木学会論文集 I 巻: -巻 号: 422/I-14号 頁: 205‐212頁 年: 1990年 月: 10月 著者(和): - タイトル(和): 簡便化された三次元有限要素法による振動モード解析 抄録(和):
- キーワード(和): - 掲載雑誌(英): JOURNAL OF STRUCTUAL MECHANICS AND EARTHQUAKE ENGINEERING 著者(英): タイトル(英): A simplified 3‐D finite element method applied to modal analyses of an elastic surface layer. 抄録(英):
A simplified 3‐D finite element method is newly proposed in order to simulate seismic wave propagation in a vast sedimentary basin. Eigenvalue analyses for 2‐D and 3‐D ground models with Poisson's ratio 0.25 or 0.40 are carried out to check validity of the method. The 2‐D analyses demonstrate that Love wave modes can be accurately calculated in both cases. Rayleigh wave modes can also be calculated satisfactorily except for those with shorter wavelength and Poisson's ratio 0.40. In 3‐D eigenvalue analyses by the present method, computational time is reduced to 1/170 of the similar analyses by a conventional method. キーワード(英): - 記事区分 - 区分     論文集