English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 51254/86278 (59%)
造訪人次 : 8003290      線上人數 : 65
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/63675


    題名: 水平曲梁受移動質量及地震之振動反應
    其他題名: Vibration of horizontally curved beams due to successive moving masses and horizontal earthquakes
    作者: 姚忠達
    貢獻者: 淡江大學建築技術系
    關鍵詞: 曲梁;移動質量;共震;Curve beam;moving mass;resonance
    日期: 2005-12
    上傳時間: 2011-10-19 23:29:03 (UTC+8)
    出版者: 臺北縣淡水鎮:淡江大學技術學院
    摘要: 本文旨在以理論解析的方式,探討水平雙鉸曲梁於水平地震下受串列移動質量之「面內」動力反應。由於地震對支承作用,導致吾人須面對求解具有時變性非齊性邊界條件之動力問題,針對此課題,本文將藉由擬靜態方法,透過解析的方式探討本課題。從解析計算過程,吾人將可得到水平曲梁受串列移動質量與地震作用下之動態反應。從說明例顯示, 地震之引進將會明顯地放大曲梁之反應,而曲梁之最大反應也並不一定會發生在跨度中央位置。
    In this paper, in-plane vibration for a horizontally two-hinged curved beam due to horizontal ground excitations and the centrifugal force generated by successive moving masses will be presented. By using the quasi-static decomposition method to solve such a dynamic problem with time-dependent boundary conditions, the dynamic deflection response of the curved beam can be separated into two parts: quasi-static and dynamic components. Then, the closed form solution of quasi-static deflection for the curved beam shaken by horizontal support excitations is first derived using an analytical approach. Then, one can adopt Galerkin's method to solve the dynamic part of the total deflection of the curved beam. With the utilization of Newmark's j3 method to compute the dynamic response of the curved beams subjected to successive moving masses and horizontal ground excitations, the numerical results indicate the earthquake excitations may amplify the response of the curved beam due to moving masses, and that the maximum deflections on the curved beam may need not to occur at the mid-span.
    關聯: 2005兩岸鐵道工程技術與營運管理學術研討會論文集,頁223-232
    顯示於類別:[建築技術系] 會議論文

    文件中的檔案:

    檔案 大小格式瀏覽次數
    index.html0KbHTML268檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋