基于空间相关元模型的机械设计优化研究

Research on Machine Design Optimization Based on Spatial Correlation Metamodels

简述了全局近似空间相关元模型的研究历程,详细介绍了空间相关元模型的建模过程.在二元素框架结构设计优化中,使用空间相关元模型为该结构建立一个有利于计算机分析的近似模型,进而测试空间相关元模型的预测能力.仿真结果证明,这些空间相关元模型能够在全局近似优化设计中产生一个满足精度要求的近似结果.

In the paper,the research process of metamodel is described and the modeling process of spatial correlation metamodels is introduced in detail. In the design optimization process of two bar truss structure,spatial correlation metamodels are used to establish an approximation model for computing analysis,and the predictive capability of spatial correlation metamodels is tested. The simulation results show that these spatial correlation metamodels can produce sufficient accuracy for optimization when used as global approximations.