| 某型发动机燃烧室外套搭接滚焊缝裂纹对使用寿命的影响 |
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| 引用本文： | 祁圣英,郑涛,杨俊.某型发动机燃烧室外套搭接滚焊缝裂纹对使用寿命的影响[J].航空发动机,2011,37(1):52-55. |
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| 作者姓名： | 祁圣英 郑涛 杨俊 |
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| 作者单位： | 空军西安局某军代表室,西安,710021 |
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| 摘 要： | 针对某型发动机燃烧室外套搭接滚焊缝处存在的裂纹,从冶金和有限元强度分析角度对焊缝裂纹扩展寿命、试片疲劳和全寿命疲劳试验等进行研究与验证,给出焊缝裂纹的扩展寿命,得出搭接滚焊缝处存在裂纹的燃烧室外套可安全使用的结论。
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| 关 键 词： | 燃烧室外套 滚焊缝 裂纹 使用寿命 |
Effect of Seam Welding Cracks on Operation Life of an Aeroengine Combustor Casing |
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| Authors: | QI Sheng-ying ZHENG Tao YANG Jun |
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| Institution: | (An Representatines Office of Xi＇an Air Force Bureau,Xi＇an 710021,China) |
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| Abstract: | The seam welding cracks propagation life,the specimen failure test and total life fatigue test were studied and validated for the seam welding cracks for an aeroengine combustor casing from metallurgy,the finite strength analysis.The propagation life of the seam welding cracks was defined,and the conclusion that the combustor casing with similar cracks can continuously operated was obtained. |
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| Keywords: | combustor casing seam welding cracks operation life |
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