摘要
全局灵敏性分析是解决多学科优化中复杂耦合系统的重要方法,对全局灵敏性分析技术进行了论述,基于一阶模型,建立了二阶以及高阶导数模型,发展了全局敏感性计算方法。编制了基于梯度的优化算法,并与全局灵敏度方程(GSE)求得的导数信息融合,进行了实例应用。与多种优化方法进行了比较,证明了设计方法的可行性、优越性。
System Sensitivity Analysis（SSA）is an important method to solute complex,internally coupled systems in Multidisciplinary design optimization.The study presents an overview of the SSA,developed the solution of System Sensitivity and constructed the Second-Order and Higher-Order Sensitivity Derivatives Model based on the First-Order Model.The research works out several optimization methods based on derivatives.The application of the combination of the GSE method and several optimization methods are given.The design method is feasible and advantageous by comparing with other optimization methods.
出处
《航空计算技术》
2011年第1期1-4,13,共5页
Aeronautical Computing Technique
基金
国家自然科学基金资助项目(20092012082900)
关键词
多学科优化
全局灵敏度分析
耦合系统
multidisciplinary design optimization
system sensitivity analysis
coupled systems
