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发表时间：2022-10-07

发表刊物：计算力学学报

所属单位：运载工程与力学学部

卷号：25

期号：6

页面范围：747-752

ISSN号：1007-4708

摘要：This paper investigates the iteration algorithms for the
   non-probabilistic reliability analysis of structures using
   hyper-ellipsoidal models of uncertainties. For the purpose of
   alleviating the convergence difficulties of the reliability index
   calculation in presence of highly nonlinear limit-state functions, the
   paper proposed a criterion for detecting Zig-zag iterations and a
   modified iteration scheme based on the HL-RF algorithm. The numerical
   example demonstrates the validity and efficiency of the present method.
   The proposed techniques are also shown to be capable of improving the
   iteration convergence in eval- uating the non-probabilistic reliability
   index.

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