Efficiency enhancing design of bearing seal ring based on response surface method
In this article,in order to overcome the bearing seal ring's grease leakage failure,a thermal-structural coupling fi-nite-element model is set up;the analysis is conducted on the effects of oil lip angle,oil lip thickness,oil lip fillet radius and in-terference on the sealing performance of the high-speed grease lubricated deep groove ball's bearing seal ring.The response sur-face of the system's maximum contact pressure and maximum equivalent stress is constructed by means of the Latin hypercube sampling method and the least square method.The seal ring is designed through the multi-objective genetic algorithm and verified by some experiments.The results show that the seal ring's maximum contact pressure increases firstly and then decreases with the ever-growing oil side lip angle,and the maximum contact pressure is obtained when the oil side lip angle is around 55°.It increa-ses with the ever-growing lip thickness and interference.It decreases with the ever-growing fillet radius of oil side lip.After opti-mization,the simulation results of the seal ring's maximum contact pressure deviate from the target by+3.98％,which meets the design requirements.No obvious grease leakage occurs after the seal ring's efficiency enhancing design.This study provides technical support for the efficiency enhancing design of bearing seal ring.
bearing seal ringcontact pressureresponse surface methodmulti-objective optimization
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