| 活塞式发动机排气喷管断裂故障分析 |
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| 引用本文： | 邓海飞,汪卫华. 活塞式发动机排气喷管断裂故障分析[J]. 航空发动机, 2008, 34(2): 17-18,26 |
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| 作者姓名： | 邓海飞 汪卫华 |
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| 作者单位： | 炮兵学院,合肥,230031;炮兵学院,合肥,230031 |
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| 摘 要： | 对某型无人机活塞式发动机发生断裂故障的排气喷管进行了现场检查、断口分析及静力学分析,表明焊接质量不合格是导致故障发生的主要原因;提出了增加焊接点数、加大熔核尺寸、加强无损检测等排故措施。
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| 关 键 词： | 活塞式发动机 无人机 排气喷管 断裂 故障分析 |
Fracture Failure Analysis of Piston Engine Exhaust Nozzle |
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| DENG Hai-fei,WANG Wei-hua. Fracture Failure Analysis of Piston Engine Exhaust Nozzle[J]. Aeroengine, 2008, 34(2): 17-18,26 |
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| Authors: | DENG Hai-fei WANG Wei-hua |
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| Abstract: | The field inspection,fracture analysis and statics analysis were performed for a UAV piston engine exhaust nozzle with fracture failure.The results show that the unqualified welding is the major reason of the failure.The corrective actions of increasing welding points,enlarging nugget size and enhancing nondestructive test have been proposed. |
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| Keywords: | piston engine UAV exhaust nozzle fracture failure analysis |
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