The Life Prediction Model of Vehicles Engine Based on Cylinder Wear-law

The wear-law and the life prediction model of mechanical components were analyzed. Supposing the mean wearing rate of cylinder during the stable wear period obeys normal distribution, the samples of cylinder life was acquired applying the time-step Monte Carlo simulation method, and the life distribution function of cylinder wear was defined applying Kolmoglov hypothesis test. Finally, the life prediction model of vehicles engine was build based on cylinder wear-law. The example proves that the model build here can predict the life of gradual changed components, and it well compliant to predict the life of vehicles engine.