| 涡轮泵端面密封贮存仿真及可靠性分析 |
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| 引用本文： | 吴勋,刘纪涛,肖飞,张为华.涡轮泵端面密封贮存仿真及可靠性分析[J].空军工程大学学报,2009,10(4):15-19. |
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| 作者姓名： | 吴勋 刘纪涛 肖飞 张为华 |
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| 作者单位： | 吴勋(国防科技大学,航天与材料工程学院,湖南,长沙,410073;第二炮兵装备研究院,北京,100085);刘纪涛,肖飞,张为华(国防科技大学,航天与材料工程学院,湖南,长沙,410073) |
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| 基金项目： | 总装预研基金资助项目 |
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| 摘 要： | 为分析长期贮存条件下涡轮泵端面密封变形问题,采用有限元分析软件对涡轮泵端面密封静环组件过盈配合及长期贮存中的蠕变变形进行了分析计算.使用应变率硬化材料模型描述蠕变特性,得到了不同年限下密封组件应力-应变和石墨环变形结果.随后利用无失效数据的多层Bayes方法和广义强度应力模型两种方法对端面密封静环组件可靠性进行了评估.广义强度应力模型将仿真结果引入,联合现场试验信息评估组件长期贮存后密封性能可靠性,有效提高了小子样条件下可靠性评定的精度,而且更加可信.
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| 关 键 词： | 端面密封 蠕变 可靠性分析 Bayes方法 |
Storage Simulation and Reliability Analysis of Turbo Pump End-face Seal |
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| WU Xun,LIU Ji-tao,XIAO Fei,ZHANG Wei-hua.Storage Simulation and Reliability Analysis of Turbo Pump End-face Seal[J].Journal of Air Force Engineering University(Natural Science Edition),2009,10(4):15-19. |
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| Authors: | WU Xun LIU Ji-tao XIAO Fei ZHANG Wei-hua |
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| Institution: | 1.Institute of Aerospace and Material Engineering;National University of Defense Technique;Changsha;410073;China;2.The Equipment Research Institute of PLA's Second Artillery;Beijing;100085 |
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| Abstract: | To study the long-term storage distortion of turbo pump end-face seal,the interference fit and long term storage creep character of the stationary seal ring of end-face seal is analyzed using finite element software.The creep behavior is formulated using strain ratio harden material model.The stress-strain of the module and the deflection of the graphite annulus are present in different storage life.And turbo pump end-face seal's reliability is obtained using hierarchical Bayesian zero-failure estimation an... |
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| Keywords: | end-face seal creep reliability evaluation Bayes method |
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