Simulation and analysis of dynamic characteristics of deep groove ball bearings in axial piston pumps

Deep groove ball bearings are critical components in both axial piston pump operation and vibration transmission. Current studies on the dynamic characteristics of deep groove ball bearings are generally carried out independently of the operational system, which leads to discrepancies between the dynamic characteristics and those observed under actual operating conditions. To accurately determine the dynamic characteristics of deep groove ball bearings during the operation of axial piston pumps, a combined simulation approach using AMESIM, ADAMS, and ANSYS was employed. The approach involved the development of fluid-structure interaction and rigid-flexible coupling dynamic models, which facilitated the analysis of the bearings’ response to both fluid and mechanical vibrations in the pump. The results of this analysis provide a deeper understanding of the vibration characteristics of deep groove ball bearings within axial piston pumps and offer a theoretical foundation for fault diagnosis.