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- W3162744304 abstract "Abstract The cutting force spectrum of the CNC lathe is the basic data for the reliability design, reliability test and reliability evaluation of the CNC lathe and its components. Due to the complex and changeable turning conditions and different cutting processes, the cutting load presents multi-peak characteristic. In order to compile the CNC lathe cutting force spectrum accurately, a compilation method based on kernel density estimation (KDE) of goodness-smoothness comprehensive evaluation (G-SCE) is proposed. According to the measured dynamic cutting force, the KDE is used to establish the dynamic cutting force distribution of the CNC lathe. For the rule of thumb method (ROT) based on the mean integrated square error and the least squares cross-validation method (LCV) based on the integrated square error does not take into account the influence of different bandwidths on the goodness estimation and the smoothness of the estimated curve. The estimation accuracy test method based on multiple goodness-of-fit tests, and the smoothness test method based on the envelope curve are proposed. The entropy method is used to comprehensively calculate the estimated goodness index and the smoothness index to determine the optimal bandwidth. The case analysis shows that the method proposed can solve the problem of too large estimation error of parameter distribution for multimodal distribution. At the same time, it can better comprehensively evaluate the KDE under different bandwidths. In short, a new method of optimal bandwidth selection is proposed in the original method." @default.
- W3162744304 created "2021-05-24" @default.
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- W3162744304 date "2021-05-05" @default.
- W3162744304 modified "2023-09-27" @default.
- W3162744304 title "Compilation Method of CNC Lathe Cutting Force Spectrum Based on Kernel Density Estimation of G-SCE" @default.
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- W3162744304 doi "https://doi.org/10.21203/rs.3.rs-481931/v1" @default.
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