Modeling, analysis and optimization of the rear axle of cereal combine harvester under real loads using finite elements method

Cereals combine harvester is one of the agricultural machines that works in difficult conditions and different forces are applied to its parts. The purpose this study was analyze static dynamic loads on rear axle JD955 optimize it. First, real were measured by a special electronic system stationary moving modes roads farm with various forward speeds. Then, geometric model designed CATIA software. Finally static, harmonic, transient analysis performed using finite element method ANSYS Workbench Mean maximum stopped mode, asphalt road, dirt road inside (while parallel perpendicular farrows turning end) equal 15.067, 18.830, 49.167, 21.428, 27.07 27.857 KN, respectively. There relatively linear relationship between load deformation. At 49.167 von Mises stresses 1200, 85.848, 21.392 1.754e-14 MPa obtained transient, harmonic analyzes, Since structural errors numerically close zero, so calculated stress values had good accuracy. fatigue life for most ideal value 106 cycles. least safety factor from 0.072 0.745 0.174 1.029 analysis. According results analysis, it necessary existing design axle. So, rectangular piece suggested as suitable middle section.