Coal Mine Wheeled Bulldozer Blade arm Fatigue Life Analysis

The coal mine with wheeled bulldozer blade arm system service life evaluation for main job is using MSC-Fatigue software analysis method,combined with fatigue durability of integrated simulation analysis process to determine the load spectrum,using the actual arm as the research object on the joints fatigue tests were carried out,find out mine wheeled bulldozer blade arm crack propagation and use the relationship between lifetime,the crane remaining cycles can be predicted,can be used to the coal mine wheel type dozer blades future load has the function of guidance,reduce the risk of accidents.