| Traditionally, dynamic model for deep groove ball bearing was based on compiler. For the condition of bearing could not be simulated accurately purely depending on that, a new technique is raised in this thesis—ADAMS combined with dummy parts and user_defined contact subroutines, which is not only visual, parametric as well as reduced in experiment, but also a contribution to innovation in analyzing dynamic model for deep groove ball bearing.In this thesis, a 6 degree of freedom dynamic model is developed using the multi-body dynamics software ADAMS to analyze the dynamic bearing model. Combining the dummy parts and basic theory of ADAMS as well as lubricated elastohydrodynamic (EHD) and piezoviscous- rigid (PVR) theory, equations as normal force calculations are built. User_defined subroutines are completed according to the above analysis, thus the simulation condition will nearly be the same with practice condition. Parametric studies were carried out to examine the effects of bearing speed, axial loading, roller - cage pocket clearance and the roller radius on bearing performance for deep groove ball bearing, and the results were also in good agreement with Gupta's analytical.The method used in this thesis fills up the blank of domestic research in this field ,and can be a reference for other types of bearing and bearing research both home and abroad. |
