华南理工大学学报(自然科学版) ›› 2003, Vol. 31 ›› Issue (9): 86-89.

• 物理 • 上一篇    下一篇

轴拉杆随机分析的域外奇点法

苏 成1 范学明1 颜全胜2   

  1. 1.华南理工大学 建筑学院‚广东 广州510640;2.华南理工大学 交通学院‚广东 广州510640
  • 出版日期:2003-09-20 发布日期:2022-05-26
  • 作者简介:苏成(1968-)‚男‚博士‚副教授‚主要从事计算力学、建筑工程与桥梁工程的研究.

Stochastic Analysis of Axially-loaded Bars by Singular Points Outside Domain Method

Su Cheng 1 Fan Xue-ming 1 Yan Quan-sheng 2   

  1. 1.College of Architecture and Civil Engineering‚South China Univ.of Tech.‚Guangzhou510640‚China; 2.College of Traffic and Communications‚South China Univ.of Tech.‚Guangzhou510640‚China
  • Online:2003-09-20 Published:2022-05-26

摘要: 采用随机域外奇点法对轴拉杆件进行了分析.考虑杨氏模量的不确定性‚得到了 不同相关类型、不同相关长度下的解析解‚并分析了相关类型、相关长度以及随机场中点 离散法对位移方差的影响.

关键词: 随机场, 随机分析, 域外奇点法, 轴拉杆

Abstract: The stochastic analysis of axially-loaded bars by singular points outside domain method is presented‚in which the uncertainty of Young’s modulus is taken into consideration.Analytical solutions corresponding to different covariance structures and fluctuation scales are obtained.Based on this‚the effects on the stochastic results of covariance structures‚fluctuation scales and mid-point discretization of random field are given. 

Key words: random field;stochastic analysis;singular points outside domain method;axially-loaded bar 

中图分类号: