A system and method for predicting the impact wear life of a protective bearing coating of a magnetic levitation generator

Abstract

The application discloses a kind of magnetically levitated generator protection bearing coating impact wear life prediction system and method, the method includes: obtaining engineering input parameter and coating current partition damage state;The maximum effective impact force and effective collision times of single drop are predicted by dynamic load proxy model;According to the effective collision times is distributed to inner circle circumferential area and local collision load characteristics are determined according to collision position probability distribution rule;The wear increment of each area is calculated by coating wear proxy model;Update partition damage state and feedback to next round drop prediction, according to cumulative drop number or failure criterion recursion;Output maximum wear, minimum remaining effective thickness, failure region position, life state or bearable drop number.The present application replaces repeated dynamic calculation and local impact damage calculation by hierarchical proxy model, respectively, to provide quantitative basis for protection bearing life assessment and overhaul replacement.

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