THERMAL SCIENCE

International Scientific Journal

SIMULATION AND THEORETICAL STUDY OF TEMPERATURE FIELD AND THERMAL DISPLACEMENT DISTRIBUTION OF ROCK-BREAKING DISC CUTTER RING BASED ON HEAT CONDUCTION THEORY

ABSTRACT
The tunnel boring machine disc cutter cutting process generates conditions such as high friction, temperature, and wear deformation conditions. In this paper, based on the rock-breaking force Colorado School of Mines model and heat conduction theory, the temperature field is deduced. A numerical analysis model is used to study the distribution of the temperature with penetration and rotational speed. The displacement-temperature-time and thermal stress-displacement-permeability relationships are investigated. The results show that the temperature rise increases with increasing penetration and rotational speed, and the highest temperature rise occurs at the outer edge of the tool ring. The degree of penetration has a quadratic function relationship with temperature rise, and the temperature rise has a positive linear relationship with the rotational speed. The radial thermal stress increases with increasing degree of penetration and radial distance, and the error between the simulated and theoretical values is within a reasonable range, which verifies the rationality and accuracy of the theoretical model.
KEYWORDS
PAPER SUBMITTED: 2025-03-15
PAPER REVISED: 2025-08-08
PAPER ACCEPTED: 2025-08-25
PUBLISHED ONLINE: 2025-11-01
DOI REFERENCE: https://doi.org/10.2298/TSCI250315169L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2026, VOLUME 30, ISSUE No. 1, PAGES [287 - 303]
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© 2026 Society of Thermal Engineers of Serbia. Published by the VinĨa Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence