A multiscale wear simulation method for rotary lip seal under mixed lubricating conditions

The macroscale simulation methods are commonly used to study wear of rotary lip seals. These methods oftentimes do not address effects of microscopic interfaces, which, according to experimental studies, are important factors in the wear of rotary lip seal. Hence, a multiscale wear simulation method for rotary lip seal under mixed lubricating conditions is proposed, in which the effects of microscopic aspects of interacting surfaces are taken into account. The simulation results indicate that the wear of rotary lip seal can be reduced by reducing axial asperity density while increasing the circumferential asperity density. The results also indicate that wear of the rotary lip seal is susceptible to axial asperity density when it is within a particular range.