Correlation Research between Asymmetry Coefficient of Gondola Car Body and Stress Distribution of Cross Bearer Weld

In order to find out the root cause of cross bearer welds’ cracks in general-purpose gondola cars, relationship between asymmetric structure and stress distribution is studied this paper. Firstly, concept asymmetry coefficient cluster proposed, coefficients’ calculation methods independent dependent variables are given, respectively, two-dimensional space. Secondly, according different positions side column 1 2, 30 local models established, weld stresses extracted after finite element simulation, clusters formed. Finally, coefficients columns calculated, correlation using Pearson complex coefficient. The results show that 2 much higher than columns. Meanwhile, it shows method presented paper feasible effective for analysis research structures. These combined with