Development of Non-Dissipative Direct Time Integration Method for Structural Dynamics Application

作     者：Sun-Beom Kwon Jae-Myung Lee 

作者机构：Department of Naval Architecture and Ocean EngineeringPusan National UniversityJangjeon-DongGeumjeong-GuBusan 609-735Korea. 

出 版 物：《Computer Modeling in Engineering & Sciences》 (工程与科学中的计算机建模（英文）)

年 卷 期：2019年第118卷第1期

页      面：41-89页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：National Research Foundation of Korea  NRF  (2011-0030013) 

主　　题：Structural dynamics finite elements direct time integration Gauss-Legendre quadrature non-dissipative scheme. 

摘      要：A direct time integration scheme based on Gauss-Legendre quadrature is proposed to solve problems in linear structural *** proposed method is a oneparameter non-dissipative *** stability,accuracy,and dispersion characteristics are achieved using appropriate values of the *** proposed scheme has second-order accuracy with and without physical ***,its stability,accuracy,and dispersion are *** addition,its performance is demonstrated by the two-dimensional scalar wave problem,the single-degree-of-freedom problem,two degrees-of-freedom spring system,and beam with boundary *** wave propagation problem is solved in the high frequency wave regime to demonstrate the advantage of the proposed *** the proposed scheme is applied to solve the wave problem,more accurate solutions than those of other methods are obtained by using the appropriate value of the *** the single-degree-offreedom system,two degrees-of-freedom system,and the time responses of beam,the proposed scheme can be used effectively owing to its high accuracy and lower computational cost.