教師資料查詢 | 類別: 期刊論文 | 教師: 姚忠達 Jong-dar Yau (瀏覽個人網頁)

標題:A robust time-integration algorithm for solving nonlinear dynamic problems with large rotations and displacements
學年101
學期1
出版(發表)日期2012/12/01
作品名稱A robust time-integration algorithm for solving nonlinear dynamic problems with large rotations and displacements
作品名稱(其他語言)
著者Kuo, Shyh-Rong; Yau, Jong-dar; Yang, Y. B.
單位淡江大學建築學系
出版者Singapore: World Scientific Publishing
著錄名稱、卷期、頁數International Journal of Structural Stability and Dynamics 12(6), 1250051(24pages)
摘要An efficient time-integration algorithm for nonlinear dynamic analysis of structures is presented. By adopting the temporal discretization for time-finite element approximation, very large time steps can be used by the algorithm. With an accuracy of fourth order, this technique requires only displacements and velocities to be made available at the start of the current time step for integration in state space. Using the weighted momentum principle, the problem of discontinuity caused by impulsive loads is resolved after time-integration of the applied load in external momentum. Since no knowledge is required of acceleration at the current time step, the errors caused by estimation of acceleration by previous finite-difference methods are circumvented. Moreover, an iterative procedure is included for each time step, involving the three phases of predictor, corrector, and error-checking. The effectiveness and robustness of the proposed algorithm in solving nonlinear dynamic problems is demonstrated in the numerical examples.
關鍵字Incremental-iterative method; momentum; nonlinear dynamics; time-discrete finiteelement; time integration method
語言英文
ISSN0219-4554
期刊性質國外
收錄於SCI
產學合作
通訊作者Yau, Jong-dar
審稿制度
國別新加坡
公開徵稿
出版型式紙本
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