典型文献
A novel robust aerodynamic optimization technique coupled with adjoint solvers and polynomial chaos expansion
文献摘要：
Uncertainty is common in the life cycle of an aircraft,and Robust Aerodynamic Optimization(RAO)that considers uncertainty is important in aircraft design.To avoid the curse of dimensionality in surrogate-based optimization,this study proposes an adjoint RAO technique called"R-Opt".Polynomial Chaos Expansion(PCE)is coupled with the R-Opt technique to quan-tify uncertainty in the responses of the target(including its mean and standard deviation).Only one process of PCE model construction is required in each iteration,and the gradients of uncertainty can be inferred via chain rules.The proposed method is more efficient than prevalent methods,and avoids the problem of a disagreement over the best PCE basis from among a number of PCE models(especially in case of sparse PCE).It also supports the application of sparse PCE.Two benchmark tests and two airfoil cases were used to verify R-Opt,and the optimal solutions were deemed to be robust.It improved the mean aerodynamic performance and reduced the stan-dard deviation of the target.
文献关键词：
中图分类号：
作者姓名：
Wei ZHANG;Qiang WANG;Fanzhi ZENG;Chao YAN
作者机构：
National Key Laboratory of Computational Fluid Dynamics,Beihang University,Beijing 100083,China;Aerospace Times Feipeng Company Limited,China Academy of Aerospace Electronics Technology,Kunshan 215000,China;China Academy of Aerospace Aerodynamics,Beijing 100074,China
文献出处：
引用格式：
[1]Wei ZHANG;Qiang WANG;Fanzhi ZENG;Chao YAN-.A novel robust aerodynamic optimization technique coupled with adjoint solvers and polynomial chaos expansion)[J].中国航空学报（英文版）,2022(10):35-55
A类：
B类：
novel,robust,aerodynamic,optimization,technique,coupled,adjoint,solvers,polynomial,chaos,expansion,Uncertainty,common,life,cycle,aircraft,Robust,Aerodynamic,Optimization,RAO,that,considers,uncertainty,important,design,To,curse,dimensionality,surrogate,this,study,proposes,called,Polynomial,Chaos,Expansion,PCE,quan,tify,responses,target,including,its,mean,standard,deviation,Only,one,process,construction,required,each,iteration,gradients,can,inferred,chain,rules,proposed,more,efficient,than,prevalent,methods,avoids,problem,disagreement,over,best,basis,from,among,number,models,especially,sparse,It,also,supports,application,Two,benchmark,tests,two,airfoil,cases,were,used,verify,optimal,solutions,deemed,improved,performance,reduced
AB值：
0.61653
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
