Real-time measurement of temperature field in heavy-duty machine tools using fiber Bragg grating sensors and analysis of thermal shift errors

Huang, Jun and Zhou, Zude and Liu, Mingyao and Zhang, Erlong and Chen, Ming and Pham, Duc Truong and Ji, Chunqian (2015) Real-time measurement of temperature field in heavy-duty machine tools using fiber Bragg grating sensors and analysis of thermal shift errors. Mechatronics, 31. pp. 16-21. ISSN 09574158

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Abstract

Temperature is one of the most significant parameters influencing heavy-duty machine tool accuracy. In order to model the correlation between temperature field distribution and thermally induced deformation, and compensate thermal errors, it is critical to obtain the temperature field variations of a precision machine tool in real-time. In this paper, based on fiber Bragg grating (FBG) sensing technology, a novel method for measuring real-time temperature field of a heavy-duty machine tool is presented and the spindle thermal shift error is analyzed. Measurement experiments of real-time temperature field and thermal shift error were carried out on a CNC turn-milling machine tool in shop floor. The variations of ambient and surface temperatures were obtained by the proposed system and the spindle thermal shift errors were monitored by laser displacement sensors at the same time. Experimental results indicate that the surface temperature variations distributed over the machine structure are non-uniform, and the surface temperature field and spindle thermal error have a similar change trend following the ambient temperature. The proposed real-time measurement system could be utilized to analyze the thermal behavior and improve the accuracy of heavy-duty machine tools.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: Temperature field; Thermal shift errors; Heavy-duty machine tools; Fiber Bragg grating (FBG)
Subjects: Q Science > QA Mathematics > QA76 Computer software
Divisions: Faculty of Business, Computing and Applied Sciences > School of Computing and Technology > Technical Computing
Research Priority Areas: Innovation, Design and Technology
Depositing User: Susan Turner
Date Deposited: 29 Jan 2016 16:15
Last Modified: 30 Sep 2016 11:38
URI: http://eprints.glos.ac.uk/id/eprint/3050

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