Multi-objective control method of slipping, friction torque and cage-roller collision force of cylindrical roller bearings was specially studied. An U-pocket cylindrical roller bearings was proposed.The conformal dynamic contact lubrication model of the U-pocket-roller was established based on the dynamic Reynolds equation and the Winkler elastic foundation model, and by use of the Newton-Euler dynamics theory, the dynamics model of the bearing was set up, and by use of the finite difference, multi-grid, and Runge-Kutta integration methods, the coupling solution of the pocket lubrication and bearing dynamics models were implemented. Multi-objective control capability of the novel bearing and the ordinary bearing on cage slip, friction torque, cage-roller collision force and cage whirl under high-speed conditions were compared and analyzed, and influence laws of geometric parameters such as roller groove depth, pocket clearances and cage guide clearances on cage slip rate, friction torque and cage-roller collision force of the novel bearings were researched. The results show that control ability of the novel bearings on cage slip rate, friction torque, cage-roller collision force and cage whirl is significantly better than that of the ordinary bearings; increase of roller groove depth will reduce cage slip rate, friction torque and cage-roller collision force; increase of pocket clearances will increase the cage slip rate, but will reduce friction torque and cage-roller collision force; increase of guide clearances will increase cage slip rate, friction torque and cage-roller collision force.
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