.png){kind=icon}
返回
Reliability analysis using adaptive Polynomial-Chaos Kriging and probability density evolution method
.png){kind=icon}
PRE
AI
DOI：10.1016/j.ress.2021.108283.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
An efficient reliability method that combines adaptive Polynomial-Chaos Kriging (PC-Kriging) and probability density evolution method (PDEM) is developed, which is abbreviated as the APCK-PDEM. First, according to the relative contributions of different representative points to the failure probability calculated by the PDEM, the notation of region of interest (ROI) is proposed, in which the representative points make critical contributions to the resultant failure probability. Then, three key aspects involved in the proposed APCK-PDEM are addressed: (a) A new learning function called PDEM-oriented expected improvement function (PEIF) is devised to cater for the demand of PDEM on the PC-Kriging accuracy; (b) A pertinent convergence criterion is defined in terms of the bound of failure probability estimated by the APCK-PDEM; (c) Since the true value of the boundary of ROI is unknown in the PEIF, an iterative determination scheme of this metric is performed at each iteration during the adaptive sampling process. Three examples are studied to showcase the performance of APCK-PDEM, and comparisons are made against other existing reliability methods. Numerical analyses and results show that the APCK-PDEM gains satisfactory estimation accuracy and high computational efficiency.
Keyword:
Polynomial-Chaos Kriging
Probability density evolution method
PDEM-oriented expected improvement function
Active learning
Reliability analysis
期刊
R
IF:
11
论文数:
9.0K
被引数:
4.2W
机构
引用论文
Sequential exploration-exploitation with dynamic trade-off for efficient reliability analysis of complex engineered systems动态权衡的顺序探索-开发，用于复杂工程系统的有效可靠性分析
OAAI
OAAI分享收藏Seismic fragility assessment of highway bridges using D-vine copulas基于d-vine copulas的公路桥梁地震易损性评估
PREAI
分享收藏Partition of the probability-assigned space in probability density evolution analysis of nonlinear stochastic structures非线性随机结构的概率密度演化分析中概率分配空间的划分
PREAI
分享收藏The principle of preservation of probability and the generalized density evolution equation.png)
STRUCTURAL SAFETY
STRUCTURAL SAFETYIF6.3
PREAI
分享收藏
查看更多内容