Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Zhenzhou Lu"'
Publikováno v:
Mechanical Systems and Signal Processing. 106:495-510
To efficiently execute the variance-based global sensitivity analysis, the law of total variance in the successive intervals without overlapping is proved at first, on which an efficient space-partition sampling-based approach is subsequently propose
Publikováno v:
Reliability Engineering & System Safety. 170:20-30
Dynamic models with time-dependent output are widely used in engineering for risk assessment and decision making. Global sensitivity analysis for these models is very useful for simplifying the model, improving the model performance, etc. The existen
Publikováno v:
Reliability Engineering & System Safety. 169:437-450
Variance-based sensitivity analysis with dependent variables represents how the uncertainties and dependence of variables influence the output uncertainty. Since the distribution parameters of variables are difficult to be given precisely, this work
Autor:
Zhenzhou Lu, Sinan Xiao
Publikováno v:
Aerospace Science and Technology. 71:52-61
In structural reliability analysis, sensitivity analysis can be used to measure how the input variable influences the failure of structure. In this work, a new reliability sensitivity analysis method is proposed. In the proposed method, the model out
Publikováno v:
Structural and Multidisciplinary Optimization. 57:279-291
In this paper, a new kind of multivariate global sensitivity index based on energy distance is proposed. The covariance decomposition based index has been widely used for multivariate global sensitivity analysis. However, it just considers the varian
Publikováno v:
Applied Mathematical Modelling. 47:381-399
For the structural system with both the uncertainties of input variables and their distribution parameters, this work investigates the generalized separation approach by transforming the original variable into the auxiliary variable with arbitrary di
Publikováno v:
Communications in Statistics - Simulation and Computation. 47:1103-1125
For the structural systems with both the uncertainties of input variables and their distribution parameters, three sensitivity indices are proposed to measure the influence of input variables, dist...
Autor:
Zhenzhou Lu, Luyi Li
Publikováno v:
Structural and Multidisciplinary Optimization. 56:919-937
Sensitivity analysis is indispensable to structural design and optimization. This paper focuses on sensitivity analysis for models with correlated inputs. To explore the contributions of correlated inputs to the uncertainty in a model output, the uni
Publikováno v:
Applied Mathematical Modelling. 45:748-767
In order to quantitatively analyze the variance contributions by correlated input variables to the model output, variance based global sensitivity analysis (GSA) is analytically derived for models with correlated variables. The derivation is based on
Publikováno v:
International Journal of Systems Science: Operations & Logistics. 5:268-281
Traditionally, only the uncertainty of input variables is considered in sensitivity analysis. In this paper, a new sensitivity analysis technique based on the variance-based sensitivity method is proposed for input variables through considering the u