Application of Partial Least Squares Neural Network in Thermal Error Modeling for CNC Machine Tool

被引：7
|
作者：
Shen, J. H. [1 ]
Yang, J. G. [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China
来源：
MANUFACTURING AUTOMATION TECHNOLOGY | 2009年 / 392-394卷
关键词：
CNC machine tool; Thermal error; Partial least squares; Neural network; COMPENSATION;
D O I：
10.4028/www.scientific.net/KEM.392-394.30
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents a partial least squares neural network modeling method for CNC machine tool thermal errors. This method uses the neural network learning rule to obtain the PLS parameters instead of the traditional linear method in partial least squares regression so as to overcome the multicollinearity and nonlinearity problem in thermal error modeling. The basic principle and architecture of PLSNN is described and the new method is applied on the thermal error modeling for a CNC turning center. After model validation with two groups of new testing data and performance comparison with other five different modeling methods, PLSNN performs better than the others with better robustness.
引用
收藏
页码：30 / 34
页数：5
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