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A priori error estimator of the generalized-alpha method for structural dynamics
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.
A priori error estimator of the generalized-alpha method for structural dynamics
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.
A priori error estimator of the generalized-alpha method for structural dynamics
Chung, Jintai (author) / Cho, Eun-Hyoung (author) / Choi, Keeyoung (author)
International Journal for Numerical Methods in Engineering ; 57 ; 537-554
2003
18 Seiten, 11 Quellen
Article (Journal)
English
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