Research on the braking force model of brake discs based on thermal stress distribution
ObjectiveTo precisely calculate the brake disc braking force of a disc brake system, a brake disc braking force model based on the quasi-static temperature and thermal stress distribution of the brake pad under the influence of heat source was established.MethodsFirst, the energy conversion mechanis...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2025-03-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.03.013 |
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| Summary: | ObjectiveTo precisely calculate the brake disc braking force of a disc brake system, a brake disc braking force model based on the quasi-static temperature and thermal stress distribution of the brake pad under the influence of heat source was established.MethodsFirst, the energy conversion mechanism during a single braking process was analyzed. Then, based on the quasi-static temperature and thermal stress distribution obtained during the braking process, a stress-braking force model was constructed using numerical methods. Finally, a simulation example was designed to verify the validity of the model.ResultsThe simulation results show that, in the later stages of braking, the temperature-braking force model curve is observed to be slightly higher than the stress-braking force model due to the influence of thermal accumulation effects. The stress-braking force model and the temperature-braking force model exhibit a high degree of consistency in their trends, with a maximum error of 305 N, an average error of 2.371 5 N, and the average relative error of only 0.012 7%. This model not only provides a basis for the numerical analysis of the braking force, but also provides new ideas and methods for the braking force detection. |
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| ISSN: | 1004-2539 |