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Fatigue life prediction of brake discs for high-speed trains via thermal stress
As one of the essential components of the braking system, the high-speed train brake disc is an integral part of ensuring the safety of the train. The main objective of this study is to conduct thermal analysis and reliable life prediction on brake discs. The research was conducted by developing a p...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10358543/ https://www.ncbi.nlm.nih.gov/pubmed/35603887 http://dx.doi.org/10.1177/00368504221102742 |
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author | Luo, Jiao Liu, Jiazhi You, Ziyun Liu, Xintian |
author_facet | Luo, Jiao Liu, Jiazhi You, Ziyun Liu, Xintian |
author_sort | Luo, Jiao |
collection | PubMed |
description | As one of the essential components of the braking system, the high-speed train brake disc is an integral part of ensuring the safety of the train. The main objective of this study is to conduct thermal analysis and reliable life prediction on brake discs. The research was conducted by developing a programmer spectrum of brake discs with high-speed train brake discs. According to the results of numerical analysis and the S-N curve of the material, the temperature distribution on the surface of the brake disc is determined, and the fatigue life of the brake disc is predicted. The comparison with the service life of the brake disc verifies the rationality of the calculation results. In addition, a fatigue damage probability model of brake discs is established based on the theory of fatigue cumulative damage. Through the relationship between the reliability of mechanical parts and the number of load cycles, the reliable life of the brake disc under different working conditions is predicted. This work establishes a method of reliable life analysis for brake discs of high-speed trains based on the load spectrum, which could analyze the life and reliability of brake discs more systematically. |
format | Online Article Text |
id | pubmed-10358543 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-103585432023-08-09 Fatigue life prediction of brake discs for high-speed trains via thermal stress Luo, Jiao Liu, Jiazhi You, Ziyun Liu, Xintian Sci Prog Original Manuscript As one of the essential components of the braking system, the high-speed train brake disc is an integral part of ensuring the safety of the train. The main objective of this study is to conduct thermal analysis and reliable life prediction on brake discs. The research was conducted by developing a programmer spectrum of brake discs with high-speed train brake discs. According to the results of numerical analysis and the S-N curve of the material, the temperature distribution on the surface of the brake disc is determined, and the fatigue life of the brake disc is predicted. The comparison with the service life of the brake disc verifies the rationality of the calculation results. In addition, a fatigue damage probability model of brake discs is established based on the theory of fatigue cumulative damage. Through the relationship between the reliability of mechanical parts and the number of load cycles, the reliable life of the brake disc under different working conditions is predicted. This work establishes a method of reliable life analysis for brake discs of high-speed trains based on the load spectrum, which could analyze the life and reliability of brake discs more systematically. SAGE Publications 2022-05-22 /pmc/articles/PMC10358543/ /pubmed/35603887 http://dx.doi.org/10.1177/00368504221102742 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by-nc/4.0/This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Original Manuscript Luo, Jiao Liu, Jiazhi You, Ziyun Liu, Xintian Fatigue life prediction of brake discs for high-speed trains via thermal stress |
title | Fatigue life prediction of brake discs for high-speed trains via thermal stress |
title_full | Fatigue life prediction of brake discs for high-speed trains via thermal stress |
title_fullStr | Fatigue life prediction of brake discs for high-speed trains via thermal stress |
title_full_unstemmed | Fatigue life prediction of brake discs for high-speed trains via thermal stress |
title_short | Fatigue life prediction of brake discs for high-speed trains via thermal stress |
title_sort | fatigue life prediction of brake discs for high-speed trains via thermal stress |
topic | Original Manuscript |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10358543/ https://www.ncbi.nlm.nih.gov/pubmed/35603887 http://dx.doi.org/10.1177/00368504221102742 |
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