A novel sub-step composite implicit time integration scheme for structural dynamics

•Desirable computation accuracy (including Amplitude Decay (AD), Period Elongation (PE)).•Good numerical dissipation/dispersion characteristics when compared with other schemes (applicable for wave propagation analysis).•Desirable computation efficiency when compared with other typical schemes. In t...

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Vydáno v:Computers & structures Ročník 182; s. 176 - 186
Hlavní autoři: Wen, W.B., Wei, K., Lei, H.S., Duan, S.Y., Fang, D.N.
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York Elsevier Ltd 01.04.2017
Elsevier BV
Témata:
Algorithms
Computer simulation
Computing time
Dynamic stability
Elongation
Finite elements
Implicit time integration
Numerical analysis
Numerical dissipation
Propagation
Stability
Structural dynamics
Studies
Time integration
Structural dynamics
Finite elements
Stability
Implicit time integration
ISSN:0045-7949, 1879-2243
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Shrnutí:•Desirable computation accuracy (including Amplitude Decay (AD), Period Elongation (PE)).•Good numerical dissipation/dispersion characteristics when compared with other schemes (applicable for wave propagation analysis).•Desirable computation efficiency when compared with other typical schemes. In this paper, a novel sub-step composite implicit time integration scheme is presented for solving the problems in structural dynamics. The proposed scheme possesses desirable stability and accuracy. With appropriate algorithmic parameter value, the scheme can attain controllable amplitude decay and period elongation. Effectiveness of the proposed scheme is tested in some example solutions by comparing with other well-known implicit schemes. Theoretical analysis and numerical simulations demonstrate that the proposed scheme possesses high computation efficiency as well as desirable numerical dissipation characteristics.
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ISSN:0045-7949
1879-2243
DOI:10.1016/j.compstruc.2016.11.018