• CN:11-2187/TH
  • ISSN:0577-6686

›› 2003, Vol. 39 ›› Issue (3): 37-39.

• 论文 • 上一篇    下一篇

蠕变损伤本构方程的优化特性

李柏林;林建国;姚新   

  1. 西南交通大学机械工程学院;伯明翰大学
  • 发布日期:2003-03-15

CHARACTERISTICS OF OPTIMIZATION OF CREEP CONSTITUTIVE EQUATIONS

Li Bailin;Lin Jianguo;Yao Xin   

  1. Southwest Jiaotong University University of Birmingham
  • Published:2003-03-15

摘要: 研究了蠕变损伤统一本构方程优化模型的特性,分析了传统的基于沿搜索方向进行迭代的优化方法失败的原因,指出了适合求解这类问题的优化方法应具有的性质。最后用进化规划对这一问题进行了求解,取得了很好的效果,所得结论对同类问题有一定的指导作用。

关键词: 本构方程, 蠕变损伤, 优化

Abstract: The characteristics of optimization models for the united creep damage constitutive equations is discussed. The reason of fail of using the traditional gradient-based methods to optimize the problem is analysed, and the characteristics for the optimization methods which are adaptive to solve the kinds of problems are given. The evolutionary algorithm is used to optimize this problem and the better result is achieved. The conclusions may be helpful during optimizing the similar problems to this.

Key words: Constitutive equations, Creep damage, Optimization

中图分类号: