应用数学和力学2018，Vol.39Issue(1)：1-10,10.DOI:10.21656/1000-0887.380018
考虑替代模型不确定性的结构动力特性全局敏感性分析
Global Sensitivity Analysis of Structural Dynamic Characteristics Considering Metamodel Uncertainty
摘要
Abstract
Uncertainty of structural parameters will unavoidably lead to uncertainty of structural natural frequencies.The global sensitvity analysis (GSA) is an effective approach to quantify the contributions of individual parameters to the induced uncertainty of dynamic characteristics.However,the GSA has the issue of high computational cost that needs to be addressed.The fast-running Gaussian process model (GPM) was used as a surrogate for the costly computer models,to reduce the computational burden of the GSA.Moreover,the influence of the metamodel uncertainty associated with the GPM was taken into account.The effectiveness of the presented GPM-based method for the GSA was verified with a test function.Finally the GPM-based approach was applied to the GSA of structural dynamic characteristics of the Anqing Yangtze River Railway Bridge.关键词
替代模型不确定性/动力特性/Gauss过程模型/全局敏感性分析/桥梁结构Key words
metamodel uncertainty/dynamic characteristic/Gaussian process model/global sensitivity analysis/bridge structure分类
交通工程引用本文复制引用
万华平,钟剑,任伟新..考虑替代模型不确定性的结构动力特性全局敏感性分析[J].应用数学和力学,2018,39(1):1-10,10.基金项目
国家自然科学基金(51508144 （）
51608161) （）
中国博士后科学基金(2015M581981 （）
2016M602007) （）
香江学者计划项目(XJ2016039) （XJ2016039）
安徽省自然科学基金(1608085QE118) The National Natural Science Foundation of China(51508144 （1608085QE118）
51608161) （）
China Postdoctoral Science Foundation(2015M581981 （）
2016M602007) （）
