An efficient algorithm for computing the dynamic responses of one-dimensional periodic structures and periodic structures with defects

被引:12
作者
Gao, Q. [1 ]
Yao, W. A. [1 ]
Wu, F. [1 ]
Zhang, H. W. [1 ]
Lin, J. H. [1 ]
Zhong, W. X. [1 ]
Howson, W. P. [2 ]
Williams, F. W. [2 ]
机构
[1] Dalian Univ Technol, Fac Vehicle Engn & Mech, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116023, Peoples R China
[2] Cardiff Univ, Cardiff Sch Engn, Cardiff CF24 0YF, S Glam, Wales
关键词
Precise integration method; Periodic structures; Exponential of a matrix; Dynamic responses; TRANSFER-MATRIX ANALYSIS; PRECISE INTEGRATION; WAVE-PROPAGATION; INFINITE;
D O I
10.1007/s00466-012-0829-0
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
This paper proposes an efficient algorithm for computing the dynamic responses of one-dimensional periodic structures and periodic structures with defects. It uses the symmetric property of the periodic structure and the energy propagation feature of the dynamic system to analyze the algebraic structure of the matrix exponential corresponding to one-dimensional periodic structures and periodic structures with defects. By using the special algebraic structure of this matrix exponential and the precise integration method, an efficient and accurate algorithm is proposed for computing the matrix exponential corresponding to one-dimensional periodic structures or periodic structures with defects. Hence an efficient method is presented for computing the dynamic responses of one-dimensional periodic structures and periodic structures with defects. It is accurate, efficient and saves memory.
引用
收藏
页码:525 / 534
页数:10
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