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对某型发动机排气段隔板脱落及事故原因进行了分析。结果表明,排气段隔板的断裂性质为机械疲劳断裂,导致疲劳断裂的根本原因是该排气段隔板焊缝存在未焊透现象所致。
The exhaust of a certain type of engine compartment separator off and the cause of the accident were analyzed. The results show that the rupture property of the partition of the exhaust section is mechanical fatigue fracture, and the fundamental reason of the fatigue fracture is the incomplete penetration of the weld in the partition of the exhaust section.