An Advanced Dimension Reduction Method for Uncertainty Propagation in Optimization-Based Model Calib

来源 :Asian Congress of Structural and Multidisciplinary Optimizat | 被引量 : 0次 | 上传用户:haobishuiduo
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Statistical model calibration is used to estimate unknown variables in a computational model through the use of known observations or information,while considering the degree of uncertainty in the inputs and outputs of the model.One probabilistic statistical model calibration method,optimization-based model calibration,is based on optimization under uncertainty.
其他文献
Quantifying the impacts of uncertainties on design performance,i.e.,uncertainty quantification (UQ),is the most important stage in uncertainty-based design optimization (UBDO) for air vehicles.Crude M
This study proposes a modified method of a response surface single loop method (RSSL)[1]for the reliability-based design optimization.The RSSL achieves computational efficiency with high approximation
会议
Moment methods for structural reliability analysis evaluate the failure probability by applying the statistical moments of the performance function,in which the maximum entropy method (MEM) is regarde
会议
There are inherently various uncertainties in engineering structure.When considering uncertainty,reliability-based design optimization (RBDO) and robust design optimization (RDO) are two well-establis
As a rigorous and efficient uncertainty propagation method,the polynomial chaos (PC) approach has been widely employed in robust design optimization.For the gradient-based robust optimization,the loca
We have been reconsidering meaning of Robust design,and have shown the difficulty to obtain true meaning of so called robust design by the following formulation,when perturbation parameter becomes des
会议
Umbilical is one of key control equipment in the under-sea production system.The cross section at the top of configuration could undertake the most dangerous load cases during operation.Firstly,the un
会议
Single loop approach shows high efficiency,thus it is extensively used in reliability-based design optimization (RBDO).However,it suffers from the non-convergence problem due to the numerical instabil
会议
The predictive capability of computer-aided engineering (CAE) models has been of great concern to engineers who make design decisions at the early stages of development of new engineered products.Mode
会议