Title: Thermo-mechanical coupled modelling on fixed joint interface in machine tools

Authors: Shuting Wang; Shixin Fu; Chengzuo Zhang; Weixing Chen

Addresses: School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China ' School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China ' Qinghai Huading Industries Co. Ltd, Xining 810018, China ' Qinghai Huading Industries Co. Ltd, Xining 810018, China

Abstract: Joint interface property is of great importance to the whole machine tool behaviour, especially for mechanical and thermal behaviour. Traditionally, studies of mechanical joint interface focus on mechanical behaviour or thermal behaviour separately, while in fact they couple tightly. By studying thermal contact resistance and thermo-mechanical coupled mechanism on fixed joint interface, a model considering thermo-mechanical coupled effect is presented in this paper. Compared with experimental data in specimens and high-speed motorised spindle, accuracy is verified on this modelling method. This would be useful to construct a precise model of the whole machine tools.

Keywords: mechanical fixed joint interface; thermo-mechanical coupled modelling; thermal contact resistance; TCR; virtual material hypothesis; machine tools.

DOI: 10.1504/IJMSI.2014.064778

International Journal of Materials and Structural Integrity, 2014 Vol.8 No.1/2/3, pp.121 - 135

Published online: 21 Oct 2014 *

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