Modal-based analysis of the refrigerated wagon body with different placements of energy refrigeration equipment

Aim: modal analysis of the body of a refrigerated wagon with energy refrigeration equipment in various locations. Materials and Methods: the problem was solved using the finite element method, and the participation factor was used to analyze the results. Results: The frequencies and mode shapes of the refrigerated wagon body variants were determined. Conclusion: The frequency of vibration changes little depending on the body design and lies in the range of 7-5 Hz. The mass of the refrigeration unit does not have a significant impact on the frequency of vibration. The largest displacements occur on the roof of the wagon. At a certain combination of the stiffness of the spring suspension and the mass of the load, resonant phenomena may occur.