点击次数：

论文类型：期刊论文

发表时间：2012-07-10

发表刊物：STRUCTURAL ENGINEERING AND MECHANICS

收录刊物：SCIE、EI、Scopus

卷号：43

期号：1

页面范围：1-13

ISSN号：1225-4568

关键字：structural dynamics system; sparse matrix; precise integration method; matrix exponential; fast algorithm

摘要：A fast precise integration method (FPIM) is proposed for solving structural dynamics problems. It is based on the original precise integration method (PIM) that utilizes the sparse nature of the system matrices and especially the physical features found in structural dynamics problems. A physical interpretation of the matrix exponential is given, which leads to an efficient algorithm for both its evaluation and subsequently the solution of large-scale structural dynamics problems. The proposed algorithm is accurate, efficient and requires less computer storage than previous techniques.