东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (3): 314-317.DOI: -

• 论著 • 上一篇    下一篇

多学科协同优化方法的分析与改进

李海燕;井元伟;张嗣瀛;   

  1. 东北大学辽宁省复杂装备多学科设计优化技术重点实验室;东北大学流程工业综合自动化教育部重点实验室;东北大学信息科学与工程学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2009AA04Z104)

Analysis and improvement of multidisciplinary collaborative optimization

Li, Hai-Yan (1); Jing, Yuan-Wei (3); Zhang, Si-Ying (3)   

  1. (1) Liaoning Province Key Laboratory of Multidisciplinary Optimal Design for Complex Equipments, Northeastern University, Shenyang 110819, China; (2) Key Laboratory of Integrated Automation of Process Industry, Ministry of Education, Northeastern University, Shenyang 110819, China; (3) School of Information Science and Engineering, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Li, H.-Y.
  • About author:-
  • Supported by:
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摘要： 深入分析了标准协同优化、动态松弛协同优化和两阶段协同优化方法的几何特性,进而比较了各自的优化特性.针对协同优化对初始点敏感的问题,通过增加总体一致性约束的方法,提出了基于先验约束法的SCO方法.针对设计变量数量级相差较大的协同优化问题,为了提高学科间的一致性,给出了基于加权方法的学科间一致性约束表示式.最后,通过悬臂梁多学科优化问题,验证了基于先验约束法的SCO方法的有效性.

关键词: 协同优化, 两阶段, 先验约束, 一致性约束

Abstract: Standard collaborative optimization, collaborative optimization based on variable relaxed tolerance and collaborative optimization based on two-phase optimization were analyzed and their optimizing properties compared, all from a geometry point of view. In view of that the optimization results of collaborative optimization were vulnerable to the initial points. A new SCO method based on prior constraint is proposed by adding the total consistency constraint. Aiming at the collaborative optimization problem whose design variables have larger magnitudes of discrepancy, the weighted consistency constraint is presented to improve interdisciplinary consistency. Finally, the beam problem is used to verify the efficiency of the proposed method.

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