Analysis and implementation of a new constant acceleration subcycling algorithm

Daniel, WJT (1997) Analysis and implementation of a new constant acceleration subcycling algorithm. International Journal For Numerical Methods In Engineering, 40 15: 2841-2855.


Author Daniel, WJT
Title Analysis and implementation of a new constant acceleration subcycling algorithm
Journal name International Journal For Numerical Methods In Engineering   Check publisher's open access policy
Publication date 1997
Sub-type Article
DOI 10.1002/(SICI)1097-0207(19970815)40:15<2841::AID-NME193>3.0.CO;2-S
Volume number 40
Issue number 15
ISSN 0029-5981
Start page 2841
End page 2855
Total pages 15
Language eng
Abstract An algorithm for explicit integration of structural dynamics problems with multiple time steps is proposed that averages accelerations to obtain subcycle states at a nodal interface between regions integrated with different time steps. With integer time step ratios, the resulting subcycle updates at the interface sum to give the same effect as a central difference update over a major cycle. The algorithm is shown to have good accuracy, and stability properties in linear elastic analysis similar to those of constant velocity subcycling algorithms. The implementation of a generalised form of the algorithm with non-integer time step ratios is presented. (C) 1997 by John Wiley & Sons, Ltd.
Keyword Mathematics, Interdisciplinary Applications
Engineering, Multidisciplinary
Transient
Structural Dynamics
Explicit Integration
Subcycling
Time
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Mon, 13 Aug 2007, 16:54:30 EST