期刊論文
| 學年 | 98 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2009-09-01 |
| 作品名稱 | Dynamic response analysis of suspended beams subjected to moving vehicles and multiple support excitations |
| 作品名稱（其他語言） | |
| 著者 | Yau, J.D. |
| 單位 | 淡江大學建築學系 |
| 出版者 | London: Elsevier Ltd |
| 著錄名稱、卷期、頁數 | Journal of Sound and Vibration 325(4-5), pp.907-922 |
| 摘要 | For dynamic analysis of a suspended beam subject to the simultaneous action of moving oscillators and multiple support motions, we need to deal with nonlinear interaction problems in conjunction with time-dependent boundary conditions. In this study, the total response of the suspended beam is decomposed into two parts: the pseudo-static response and the inertia-dynamic component. Then, the pseudo-static displacement is analytically obtained by exerting the support movements on the suspended beam statically and the governing equations in terms of the inertia-dynamic component as well as moving oscillators are transformed into a set of coupled generalized equations by Galerkin's method. Instead of solving the coupled equations containing pseudo-static support excitations and moving oscillators, this study treats all the nonlinear coupled terms as pseudo forces and solves the decoupled equations using the Newmark method with an incremental-iterative approach. Numerical investigations demonstrate that the present solution technique is available in dealing with the vehicle/bridge interaction problem involving multiple support motions, and that appropriate adjustments of cable sag ratios subject to the condition of identical bridge frequencies are beneficial for mitigating the earthquake-induced vibration of suspended bridge/vehicle coupling system. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 0022-460X 1095-8568 |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | Yau, J.D. |
| 審稿制度 | |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | 紙本 電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/59339 ) |