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飞机结构腐蚀管理全寿命模型研究
  • ISSN号:1001-5000
  • 期刊名称:中国民航大学学报
  • 时间:0
  • 页码:61-71
  • 语言:中文
  • 分类:V215[航空宇航科学与技术—航空宇航推进理论与工程;航空宇航科学技术]
  • 作者机构:[1]海军航空工程学院青岛分院,山东青岛266041
  • 相关基金:国家自然科学基金项目(50675221);总装“十一五”预研课题(513270301)
  • 相关项目:疲劳与日历退化交互作用下多处损伤结构剩余强度理论
中文摘要:

针对当前飞机的腐蚀损伤评估模式,构建了一种较为合理的腐蚀管理全寿命分析模型。该模型可将全寿命阶段飞机结构可能遭受的各种腐蚀形态、MSD和结构材料性能随时间的退化作为变量纳入到一个框架中,提高了分析精度和可靠性,为新机定寿和老龄飞机延寿提供技术支持;方法具有一般性,可推广到其他装备结构寿命评定中。

英文摘要:

Based on the characteristic of corrosion of aircraft structure under service conditions, a fatigue holistic assessment model that can incorporate the effects of various corrosion damage and age-degradation into a systematic damage tolerance framework was established with existing engineering principles. The influence of age-degradation and fatigue interaction on aircraft structure integrality was quantified through this model. In the meantime, the predictive model of residual strength and crack growth of the wide panel with multiple site damage(MSD) was established according to the holistic assessment method. Thus a reliable theory is provided for Corrosion damage tolerance assessment. A more effective engineering method for the maintenance, inspection, repair and extending use of aging structure systems can also be provided by this theory.

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