Reliability adaptive modeling method for CNC Machine Tools based on kernel function

摘要

A reliability adaptive modeling method for CNC Machine Tools based on kernel function is proposed. Choosing Gaussian distribution as the kernel function, the optimal model with least integral square error as the objective is established, and cross-validation method and traversal search method are used to solve the bandwidth parameter of kernel function. In examples, we use kernel function distribution model to approximate different life distributions, verifying that the kernel function distribution model has good approximation property and can replace traditional distribution model. In the reliability modeling process of one type of CNC machine tools during the early failure period, comparing the kernel function distribution model with the traditional Weibull distribution model, we verify that the kernel function distribution model is more suitable for reliability modeling of CNC machine tools by goodness of fit test.