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由武空工程部、六二一所、西北工业大学、北京航空学院等单位的五十余名同志组成的《起落架故障及延寿》研究小组,在五年内,应用断裂力学分析方法,对起落架的故障、延寿(补焊和喷丸)及寿命估算进行了大量的试验研究,并进行过十二架飞机的领先飞行考核,(其中有的经补焊的起落架已飞过三千个起落)。在此基础上、由空军和三机部主持,于一
The research team of “landing gear failure and life extension”, composed of more than 50 comrades from Wulong Engineering Department, 61st Institute, Northwestern Polytechnical University and Beijing Institute of Aeronautics and Astronautics, applied the method of fracture mechanics analysis within five years A large number of pilot studies have been carried out on the failure of landing gear, life extension (repair welding and shot peening) and life estimation, and conducted leading flight tests of 12 aircraft (some of them have overflew 3000 Ups and downs). On this basis, chaired by the Air Force and the Third Machinery Department, at one