中国机械工程 ›› 2013, Vol. 24 ›› Issue (1): 25-29.

• 机械基础工程 • 上一篇    下一篇

基于MDO方法的车用三效催化转化器设计优化

刘孟祥1,2;刘湘玲3;龚金科3   

  1. 1.湖南涉外经济学院,长沙,410205
    2.中南大学,长沙,410083
    3.湖南大学汽车车身先进设计制造国家重点实验室,长沙,410082
  • 出版日期:2013-01-10 发布日期:2013-01-23
  • 基金资助:
    湖南省自然科学基金资助项目(11JJ6036);湖南省科技攻关计划(湘科计(2002)87号);湖南省“十二五”车辆工程重点建设学科项目(湘教发\[2011\]76号);湖南省教育厅科学研究项目(10C0907) 
    Hunan Provincial Natural Science Foundation of China(No. 11JJ6036);
    Hunan Provincial Key Technology R&D Program(No. (2002)87);
    Hunan Provincial Scientific Research Project of Ministry of Education of China(No. 10C0907)

Design Optimization of Vehicle Three-Way Catalytic Converter Based on MDO Method

Liu Mengxiang1,2;Liu Xiangling3;Gong Jinke3   

  1. 1.Hunan International Economics University,Changsha,410205
    2.Central South University,Changsha,410083
    3.State Key Laboratory Advanced Design and Manufacturing for Vehicle Body,Hunan University,Changsha,410082
  • Online:2013-01-10 Published:2013-01-23
  • Supported by:
     
    Hunan Provincial Natural Science Foundation of China(No. 11JJ6036);
    Hunan Provincial Key Technology R&D Program(No. (2002)87);
    Hunan Provincial Scientific Research Project of Ministry of Education of China(No. 10C0907)

摘要:

以车用三效催化转化器(TWC)的转化效率、压力损失、质量以及抗热冲击性能为目标函数,建立了TWC多学科设计优化(MDO)模型。在充分考虑各学科之间的耦合效应基础上,通过采用自适应混沌优化算法与VB编程对MDO模型进行求解。优化结果表明,压力损失减少699%,质量减少1168%,位移变形减少2091%,TWC转化效率提高542%。试验证明该方法用于TWC是有效的。

关键词: 三效催化转化器, 多学科设计优化, 混沌算法, 排放控制, 发动机

Abstract:

A MDO model of TWC was firstly established by using TWC conversion efficiency, pressure loss, miss and thermal shock resistance as the objective function and the MDO model was solved on the basis of taking full account of the coupling effects among various disciplines by using self-adaptive chaos algorithm and VB(visual basic) programming. The optimization results show that pressure loss reduces 699%, mass reduces 1168%, displacement deformation reduces 2091% and the conversion efficiency improves 542%. The tests prove that MDO in TWC is effective.

Key words: three-way catalytic converter(TWC), multidisciplinary design optimization(MDO), chaos algorithm, emission control, engine

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