Multi-Objective Optimization for Section of Sandwich Plate Applied to High-Speed Train Compartments

doi:10.7652/xjtuxb201301013

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Multi-Objective Optimization for Section of Sandwich Plate Applied to High-Speed Train Compartments

更新时间：2025-07-09

- Multi-Objective Optimization for Section of Sandwich Plate Applied to High-Speed Train Compartments
- Vol. 47, Issue 1, Pages: 62-67(2013)
- 作者机构：
  
  西安交通大学机械制造系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201301013
  CLC： TH122
- Online First：10 January 2013，
  
  Published：2013
- 稿件说明：
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Multi-Objective Optimization for Section of Sandwich Plate Applied to High-Speed Train Compartments[J]. 2013, 47(1): 62-67.
DOI：

Multi-Objective Optimization for Section of Sandwich Plate Applied to High-Speed Train Compartments[J]. 2013, 47(1): 62-67. DOI： 10.7652/xjtuxb201301013.

摘要

为获得不同运行速度和工况下的高速列车车厢侧墙结构

在拓扑优化结构的基础上进行了多目标优化研究。将侧墙夹层板质量、柔度、最大变形作为优化目标

以侧墙5段夹层结构的面板和夹心厚度为变量、车厢气压变化梯度为约束函数

利用代理模型技术

建立了各目标、约束函数与变量之间的代理模型

通过非支配遗传算法NSGA-II

得到了多目标的Pareto解集。该Pareto解集中的夹层板结构比拓扑优化得到的夹层板结构的最大变形性能提高了8.21%到33.58%

设计时可根据具体的要求和经验从Pareto解集中进行选择

从而为不同运行速度和工况下的高速列车车厢断面结构的设计提供了多种选择方案。

Abstract

To investigate the structures of high speed train side walls applicable to different running speeds and operation conditions

a multi-objective optimization design is carried out following structure topology optimization. The weight of sandwich plate

static compliance and maximum deformation are defined as the objectives

the thickness of face panels and cores in five parts of the side wall as the variables while the changing air pressure gradient in compartments as the constraint. The surrogate model techniques are implemented for constructing the response surfaces of objective and constraint functions. Then a multi-objective optimization is performed with NSGA-II to generate a Pareto solution set. The structure performance in Pareto set is greatly improved by 8.21% to 33.58% than that from topology structure

besides

the Pareto solution set provides many alternative Pareto-optimal solutions for optimization design of the sandwich plate section in high-speed trains.

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references

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