In:
Engineering review, Faculty of Engineering, University of Rijeka, Vol. 39, No. 1 ( 2019), p. 11-20
Abstract:
In order to solve the structural reliability and its sensitivity of the implicit nonlinear performance function (PF) the advantages of the saddlepoint approximation (SA) and line sampling (LS) are merged. Also, the merits of dichotomy and the solution efficiency of the golden section method are combined to propose the saddlepoint approximation-line sampling (SA-LS) method based on the dichotomy of the golden section point. This is complicated and changeable in the non normal variable space, which is a very hot issue of the present international study. For each sample, it is quick to find its zeropoint
in PF along the important line sampling direction by the previously mentioned dichotomy so that the structural failure probability can be transformed into the mean of a series linear PFs failure probability, and the reliability sensitivity is just the derivative or partial one of the probability with respect to the relational variables. Examples show
that the SA-LS method based on the dichotomy of the golden section point is of high precision and fast velocity in analyzing the structural reliability and sensitivity of the implicit nonlinear PF that are complicated and changeable in the non-normal variable space.
Type of Medium:
Online Resource
ISSN:
1849-0433
,
1330-9587
Language:
Unknown
Publisher:
Faculty of Engineering, University of Rijeka
Publication Date:
2019
detail.hit.zdb_id:
2501709-3
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