FATIGUE RELIABILITY EVALUATION OF WELDED FRAME OF FOUR-AXLE WAGON BOGIE
A three-dimensional model of frame was established in the software ANSYS9.0.According to the Codes of UIC510,the stress distribution of the welded frame was analyzed and calculated.The results indicated that the fatigue strength of the frame was adequate and the relative fatigue weak point was found out.Then,the entire car was tested when it was running on the rail track and the stress history of the key position of the welded frame was obtained.Furthermore,the stress spectrum was worked out for the key positions with rain-flow counting method.By using the revised Miners damage rule,P-S-N curve of component and fatigue life evaluation method for welded structure,the fatigue life and its reliability of the frame was predicted.
frame fatigue strength fatigue life P-S-N curve
G.X.Yang J.L.Xie S.X.Zhou
Laboratory for Structural Strength Testing(Beijing JiaotongUniversity),China National Accreditation Service for Conformity Assessment EngineeringResearch Center of Structure Reliability and Operation Measurement Technology of RailGuided Vehicles(Bei
国际会议
第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)
安徽黄山
英文
1219-1223
2008-06-03（万方平台首次上网日期，不代表论文的发表时间）