中南大学学报（自然科学版）2012，Vol.43Issue(5)：1990-1998,9.
基于Kriging法的铁道车辆客室结构优化
Optimization on passenger compartment structure of railway vehicle based on Kriging method
摘要
Abstract
In order to solve the optimization problem of compartment space dimensions and contact stiffness of inner parts of railway vehicle, and to achieve the multi-objective and multi-parameter compartment structure optimization design, the two models of seat-table structure and seat-seat structure were taken for example to set up the surrogate models between objective parameters (head injury criterion CH115, CH136 and thoracic cumulative-3ms injury criterion CT3ms) and design variables (table height h, distance l1 of table and chair, distance l2 of two chairs, table contact stiffness k1 and chair contact stiffness k2). Then the response surfaces between target parameters and design parameters were obtained respectively, and the optimal parameters of two structure models were obtained through the overall optimization of surrogate models by genetic algorithm (GA). The results indicate that the optimization results of surrogate models accord well with the numerical simulation ones, and their difference range is -5.94%-2.23%, which shows that the optimization results obtained by surrogate models and GA are reliable. The results might be helpful to guiding the structure design of railway vehicle compartment.关键词
铁道车辆/客室结构/优化/Kriging法/遗传算法Key words
railway vehicle/ passenger compartment/ optimization/ Kriging method (KM)/ genetic algorithm (GA)分类
交通工程引用本文复制引用
谢素超,周辉..基于Kriging法的铁道车辆客室结构优化[J].中南大学学报（自然科学版）,2012,43(5):1990-1998,9.基金项目
国家自然科学基金资助项目(50175110) （50175110）
中南大学博士研究生学位论文创新基金资助项目(2009bsxt019) （2009bsxt019）
