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针对某型飞机主起落架活塞杆下表面裂纹,分析了裂纹形成原因,分别从构件局部受力情况、有限元计算和焊接试件的疲劳试验等三个方面对该焊接修复方法进行了可行性分析和论证。
Aiming at the crack on the lower surface of the piston rod of a main landing gear of a certain type of aircraft, the causes of crack formation were analyzed. The feasibility of the welding repair method was analyzed from three aspects: the local stress of the component, the finite element calculation and the fatigue test of the welding specimen Analysis and demonstration.