A priori error estimator of the generalized-alpha method for structural dynamics
- Authors
- Chung, Jintai; Cho, Eun hyoung; Choi, Keeyoung
- Issue Date
- May-2003
- Publisher
- JOHN WILEY & SONS LTD
- Keywords
- error estimator; automatic time-stepping algorithm; time integration; structural dynamics
- Citation
- INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, v.57, no.4, pp.537 - 554
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
- Volume
- 57
- Number
- 4
- Start Page
- 537
- End Page
- 554
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/46688
- DOI
- 10.1002/nme.688
- ISSN
- 0029-5981
- Abstract
- An a priori error estimator for the generalized-alpha time-integration method is developed to solve structural dynamic problems efficiently. Since the proposed error estimator is computed with only information in the previous and current time-steps, the time-step size can be adaptively selected without a feedback process, which is required in most conventional a posteriori error estimators. This paper shows that the automatic time-stepping algorithm using the a priori estimator performs more efficient time integration, when compared to algorithms using an a posteriori estimator. In particular, the proposed error estimator can be usefully applied to large-scale structural dynamic problems, because it is helpful to save computation time. To verify efficiency of the algorithm, several examples are numerically investigated. Copyright (C) 2003 John Wiley Sons, Ltd.
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