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Research on the Thermal-Structure Coupling Applied to Wet Brake of Mining Vehicles
- Chuan Wei Zhang - Xi’an University of Science and Technology, College of Mechanical Engineering, China ,
- Sujing Gu - Xi’an University of Science and Technology, College of Mechanical Engineering, China ,
- Yupeng Ding - Xi’an University of Science and Technology, College of Mechanical Engineering, China ,
- Bin Bin Zhao - Xi’an University of Science and Technology, College of Mechanical Engineering, China ,
- Teng Zhang - Xi’an University of Science and Technology, College of Mechanical Engineering, China
Journal Article
02-15-02-0003
ISSN: 1946-391X, e-ISSN: 1946-3928
Sector:
Citation:
Zhang, C., Gu, S., Ding, Y., Zhao, B. et al., "Research on the Thermal-Structure Coupling Applied to Wet Brake of Mining Vehicles," SAE Int. J. Commer. Veh. 15(2):99-110, 2022, https://doi.org/10.4271/02-15-02-0003.
Language:
English
Abstract:
In order to reveal the temperature and stress change of wet brake under emergency
working conditions, a wet multi-disc brake used in mining machinery was taken as
the research object. The thermomechanical coupling simulation model of a wet
brake was established, and the temperature and stress change of the friction
disc under emergency working conditions were analyzed through a bench
experiment. The temperature and stress change of the friction disc of the
simulation model are compared to the experimental one to verify the correctness
of the model. The results show that (1) There is a coupling relationship between
the temperature field and stress field during emergency braking. In the process
of braking, the variation trend and spatial distribution law of the temperature
field and stress field are very similar. (2) When the brake is applied at 40
km/h, the temperature rise of the friction disc reaches 46.8°C during the
process of emergency braking conditions. Thus braking at the speed of 40 km/h
should be avoided. (3) The temperature change of the friction disc is more
obvious in the radial direction than in the circumferential direction.