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Abstract: It
can decrease significantly the computation time in transient structural
analysis to use subcycling algorithms which permit multiple time steps
in explicit integration. Several subcycling algorithms are tested and it
is shown that constant velocity subcycling algorithm possesses the best
accuracy and stability properties. A new subcycling algorithm based on
special treatment of rigid joint and proper choice of damper is
proposed. The numerical example show that the algorithm present with
higher computational efficiency with out losing accuracy.
Key words: Subcycle Rigid linking Finite element Computational
efficiency
CLC No: O34
国家973计划(2004CB719402)和国家自然科学基金(10372029)资助项目. Received 20040518,
received in revised form 20050217
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