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pro vyhledávání: '"Zhenzhou Lu"'
Autor:
Zhenzhou Lu, Sinan Xiao
Publikováno v:
Journal of Engineering Mechanics. 146
In this paper, a new approach is proposed to estimate the probability of failure in structural reliability analysis. This method is based on the law of total expectation and variance in sub...
Autor:
Zhenzhou Lu, Sinan Xiao
Publikováno v:
ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering. 4
In this work, the fourth-moment method and the higher-order unscented transformation is combined to calculate the failure probability. The higher-order unscented transformation is used to e...
Publikováno v:
Journal of Engineering Mechanics. 143
In this paper, a new fuzzy distance index is proposed to measure the effect of the fuzzy distribution parameters of random model inputs on the statistical characteristics of model output. F...
Publikováno v:
Journal of Structural Engineering. 143
Global sensitivity analysis is frequently applied to models with multivariate output. The generalized Sobol’s sensitivity index has been defined to evaluate the importance of input variable...
Autor:
Zhenzhou Lu, Sinan Xiao
Publikováno v:
Journal of Structural Engineering. 142
In this paper, a new approach for estimating the probability of failure is proposed. The method works by dividing the input space into subspaces with the Voronoi diagram and applying the unscented transformation in each subspace. The probability of f
Publikováno v:
Journal of Engineering Mechanics. 142
For consideration of the wide applications of concordance and order information in global sensitivity analysis (SA), a new sensitivity index based on the spearman correlation coefficient (S-CC) is presented in this article. S-CC can reflect the linea
Autor:
Zhenzhou Lu, Wenbin Ruan
Publikováno v:
Journal of Structural Engineering. 141
Similar to the definition of the moment-independent importance measure on model failure probability, the authors define the moment-independent importance measure concerning the importance sampling method. After combining the importance sampling proce
Publikováno v:
Journal of Engineering Mechanics. 141
Sensitivity analysis is frequently considered an essential component in engineering design. In the design process of engineered structures, the output is implicitly related with the input variables. The Kriging model, one of the most commonly used em
Publikováno v:
Journal of Engineering Mechanics. 140
To quantitatively estimate the contributions of component failure modes to system output, failure-mode importance measures have been proposed in this paper. This issue is discussed in two schemes: in Scheme 1, failure-mode importance is measured by t