高低周复合载荷燕尾型榫连接微动疲劳的试验研究
FRETTING FATIGUE OF DOVETAIL JOINT UNDER COMBINED CYCLIC LOADING
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摘要: 分析了国内外对飞机发动机轮盘和叶片的燕尾型榫连接构件微动疲劳的研究现况,对榫连接构件进行受力分析,设计了实验装置,通过实验,认为该实验装置是可行的。通过边界元素法进行了数值计算,分析接触表面当量应力、摩擦功,以及当量应力和摩擦功对疲劳损伤的影响。Abstract: The state-of-art in research on fretting fatigue of dovetail joint in aircraft engine at home and abroad was sized up.Stress analysis of dovetail joint part was carried out.Experimental equipment was desiged and set up.A number of tentative experiments was conducted.It is confirmed that the experimental technique and equipment can offer a great deal of data for designing.
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