Comparative Analysis of Strength Calculation for Railway’s Flat Car Body Using Fuzzy Logic and Evolutionary Algorithms

This article makes an in-depth analysis of different body strength calculation methods using fuzzy logic and evolutionary algorithm by taking the universal flat car as example. For this study, a more scientific reliable theoretical basis for structural design railway surveying mapping is considered. If expansion contraction jack are not synchronised while jacking vehicle with when freshly manufactured maintained, will be in three-point support state. The 3-point state result permanent deformation if structure low torsional stiffness used. characterized small adopted, produce deformation. safety factor specified EN12663 only 1.15, which shows that Interim Provisions have highest requirements corresponding cost. From fatigue analysis, it can seen difference between maximum principal stress allowable at node level von Mises high, dangerous position structure. research there great differences provisions load various specifications.