Influence of Thickness of Friction Ring on Thermal Capacity and Thermal Stress of Brake Disc

被引：0
|
作者：
Zhou S. [1 ,2 ]
Zhao X. [1 ,2 ]
Zhou D. [3 ]
Guo Z. [1 ,2 ]
Xu P. [1 ,2 ]
Lu S. [1 ,2 ]
机构：
[1] School of Mechanical-Electronic and Vehicle Engineering, Beijing University of Civil Engineering and Architecture, Beijing
[2] Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles, Beijing University of Civil Engineering and Architecture, Beijing
[3] Wuhan Railway Rolling Stock, Co., Ltd., Wuhan
来源：
| 2018年 / Science Press卷 / 40期
关键词：
Brake disc; Indirect thermal coupling; Thermal capacity; Thermal stress; Thickness of friction ring;
D O I：
10.3969/j.issn.1001-8360.2018.12.008
中图分类号：
学科分类号：
摘要：
In order to study the effect of friction ring thickness on the thermal capacity and thermal stress of cast steel brake discs equipped on new intercity EMU, in this paper, a three dimensional transient model of brake disc was established based on ANSYS software. The influence of friction ring thickness on the temperature field and stress field of the brake disc was simulated under the condition of 300 km/h operating speed, using indirect coupling method. The results show that at 23 mm initial thickness of the friction ring, the maximum surface temperature of the brake disc is 333.01℃, and the thermal stress is 324.26 MPa. With the decrease of the thickness by 5 mm, the surface temperature of the brake disk approximately increases by 8.24% and the thermal stress increases by 12.82%. The influence of friction ring thickness on thermal stress field is greater than on temperature field. There is linear relationshi Pbetween friction ring thickness and thermal stress and temperature. The results provide references for the subsequent service life prediction and maintenance of the brake disc. © 2018, Department of Journal of the China Railway Society. All right reserved.
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页码：55 / 60
页数：5
相关论文
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