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- Title
An Effective Approach for Reliability-Based Sensitivity Analysis with the Principle of Maximum Entropy and Fractional Moments.
- Authors
Zhang, Xufang; Liu, Jiankai; Yan, Ying; Pandey, Mahesh
- Abstract
The reliability-based sensitivity analysis requires to recursively evaluate a multivariate structural model for many failure probability levels. This is in general a computationally intensive task due to irregular integrations used to define the structural failure probability. In this regard, the performance function is first approximated by using the multiplicative dimensional reduction method in this paper, and an approximation for the reliability-based sensitivity index is derived based on the principle of maximum entropy and the fractional moment. Three examples in the literature are presented to examine the performance of this entropy-based approach against the brute-force Monte-Carlo simulation method. Results have shown that the multiplicative dimensional reduction based entropy approach is rather efficient and able to provide reliability estimation results for the reliability-based sensitivity analysis of a multivariate structural model.
- Subjects
MAXIMUM entropy method; SENSITIVITY analysis; STRUCTURAL failures; STRUCTURAL models; MULTIVARIATE analysis
- Publication
Entropy, 2019, Vol 21, Issue 7, p649
- ISSN
1099-4300
- Publication type
Article
- DOI
10.3390/e21070649