航空学报 > 2006, Vol. 27 Issue (3): 459-462

腐蚀结构分析中腐蚀坑的随机布置和计算机模拟

任克亮1,2, 吕国志1, 张有宏1   

  1. 1. 西北工业大学 航空学院, 陕西 西安 71007;2. 宁夏大学 物理与电气信息学院, 宁夏 银川 750021
  • 收稿日期:2004-12-14 修回日期:2005-06-15 出版日期:2006-06-25 发布日期:2006-06-25

Stochastic Arrange and Computer Simulation of Corrosion Pitting in Damage Structure

REN Ke-liang1,2, LU Guo-zhi1, ZHANG You-hong1   

  1. 1. Department of Aircraft Engineering, Northwestern Polytechnical University, Xi'an 710072, China;2. Department of Physics & Electrical Information Engineering, Ningxia Unversity, Yinchuan 750021, China
  • Received:2004-12-14 Revised:2005-06-15 Online:2006-06-25 Published:2006-06-25

摘要: 针对老龄化飞机安全评估分析中结构表面存在广布随机不等直径腐蚀坑这一现状,采用蒙特卡罗(MonteCarlo)方法分析并编制了计算机程序,完成了由结构腐蚀原况到计算模型的映射,从而实现了利用计算机模拟再现结构腐蚀损伤,为定量研究腐蚀损伤对老龄飞机结构的剩余强度和寿命影响提供可能。

关键词: 老龄飞机, 腐蚀坑, 统计分析, 蒙特卡罗, 混沌映射, 计算机模拟, 剩余强度

Abstract: In safety evaluation analysis of aged aircraft in corrosive environment, there are many widespread stochastic corrosion pits with different radii on structural surface. The ideal program, using Monte Carlo method, is compiled which is used to map the pitted structure to calculation model. The method can visualize the simulation of eroded status and provide a platform for computing the residual strength and life of the damaged structure with corrosion pits.

Key words: aging aircraft, pitting, statistical analysis, Monte Carlo, chaotic mapping, computerized simulation, residual strength

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