Predicting spindle displacement caused by heat using the general regression neural network
| Autor: | Her-Terng Yau, Cheng-Chi Wang, Mao-Chin Houng, Bo-Lin Jian, Chin-Tsung Hsieh, Ying-Piao Kuo |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Materials science business.product_category Coefficient of determination Artificial neural network Mechanical Engineering Regression analysis 02 engineering and technology Mechanics Industrial and Manufacturing Engineering Displacement (vector) Regression Computer Science Applications Machine tool 020901 industrial engineering & automation Control and Systems Engineering Thermal Boundary value problem business Software |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 104:4665-4674 |
| ISSN: | 1433-3015 0268-3768 |
| DOI: | 10.1007/s00170-019-04261-5 |
| Popis: | Machine tools may be affected by room temperature, the heat generated by the process, and many other factors. These cause the temperature of the spindle, motor, lead screw, and other parts to rise, and this causes thermal deformation. The main purpose of this study was an exploration of the relationship between the temperature of the spindle and thermal deformation. Measurements were made of the increases in temperature of a CNC lathe spindle, and the related axial displacements involved, at spindle speeds of 1000, 2000, and 3000 rpm. Multiple regression analysis and a general regression neural network were used to establish the relationship between thermal deformation and temperature change individually. The results showed the coefficient of determination of the multiple regression analysis to be 0.9275, while the general regression determined by the neural network was 1. The fitting result of the regression neural network was better than that of multiple regression analysis, and the maximum error was less than 0.1 μm. In addition, this study also used COMSOL simulation analysis software to analyze features of the thermal behavior generated by the spindle structure. A trial and error method was used to adjust the boundary conditions. Results showed that the maximum error in temperature rise determination of simulation and experiment was less than 1 °C. |
| Databáze: | OpenAIRE |
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