Influence of Operating Parameters on the Temperature Rise of the Wheel Tread of a Freight Wagon When Braking on a Long Downhill Ramp.
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| Title: | Influence of Operating Parameters on the Temperature Rise of the Wheel Tread of a Freight Wagon When Braking on a Long Downhill Ramp. |
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| Authors: | Zhang, Jinyu1 (AUTHOR), Tao, Gongquan1 (AUTHOR), Wen, Zefeng1 (AUTHOR) zfwen@swjtu.edu.cn |
| Source: | Tribology Transactions. Mar/Apr2026, Vol. 69 Issue 2, p394-410. 17p. |
| Subjects: | Temperature, Brake systems, Finite element method, Friction materials |
| Abstract: | Due to geographical constraints, some vehicles operate on long downhill ramps. When the vehicle undergoes prolonged braking, continuous heat accumulation occurs on the wheel tread surface, which increases the likelihood of wheel fatigue damage. This study examines how brake shoe materials, ramp gradients, ramp length, axle weights, and braking speeds influence temperature rise in freight wagon wheels during constant speed braking on long downhill ramps. A coupled thermomechanical finite element model of wheel–brake shoe friction, balancing computational accuracy and efficiency, was developed to simulate the conditions of long downhill ramps. Using a two-dimensional thermomechanical coupled finite element model in a commercial finite element solver, we observed that high-friction synthetic brake materials generated the highest maximum wheel tread temperatures, followed by sintered and cast iron materials. Specifically, a 2‰ increase in ramp gradient results in a 13% rise in maximum tread temperature, and a 3-tonne increase in axle weight causes a 14% increase. Temperature increases linearly with ramp gradient and axle weight. Moreover, the influence of braking speed and ramp length on temperature rise diminishes at higher values, whereas radial temperature decreases nonlinearly with depth. Various vehicle operating parameters significantly affect the evolution of wheel tread temperature during operation on long downhill ramps. These findings offer valuable insights into temperature management and performance optimization of braking systems operating on long downhill ramps. [ABSTRACT FROM AUTHOR] |
| Copyright of Tribology Transactions is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 192207305 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Influence of Operating Parameters on the Temperature Rise of the Wheel Tread of a Freight Wagon When Braking on a Long Downhill Ramp. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Jinyu%22">Zhang, Jinyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tao%2C+Gongquan%22">Tao, Gongquan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wen%2C+Zefeng%22">Wen, Zefeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zfwen@swjtu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Tribology+Transactions%22">Tribology Transactions</searchLink>. Mar/Apr2026, Vol. 69 Issue 2, p394-410. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Temperature%22">Temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Brake+systems%22">Brake systems</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Friction+materials%22">Friction materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Due to geographical constraints, some vehicles operate on long downhill ramps. When the vehicle undergoes prolonged braking, continuous heat accumulation occurs on the wheel tread surface, which increases the likelihood of wheel fatigue damage. This study examines how brake shoe materials, ramp gradients, ramp length, axle weights, and braking speeds influence temperature rise in freight wagon wheels during constant speed braking on long downhill ramps. A coupled thermomechanical finite element model of wheel–brake shoe friction, balancing computational accuracy and efficiency, was developed to simulate the conditions of long downhill ramps. Using a two-dimensional thermomechanical coupled finite element model in a commercial finite element solver, we observed that high-friction synthetic brake materials generated the highest maximum wheel tread temperatures, followed by sintered and cast iron materials. Specifically, a 2‰ increase in ramp gradient results in a 13% rise in maximum tread temperature, and a 3-tonne increase in axle weight causes a 14% increase. Temperature increases linearly with ramp gradient and axle weight. Moreover, the influence of braking speed and ramp length on temperature rise diminishes at higher values, whereas radial temperature decreases nonlinearly with depth. Various vehicle operating parameters significantly affect the evolution of wheel tread temperature during operation on long downhill ramps. These findings offer valuable insights into temperature management and performance optimization of braking systems operating on long downhill ramps. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Tribology Transactions is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/10402004.2025.2488802 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 394 Subjects: – SubjectFull: Temperature Type: general – SubjectFull: Brake systems Type: general – SubjectFull: Finite element method Type: general – SubjectFull: Friction materials Type: general Titles: – TitleFull: Influence of Operating Parameters on the Temperature Rise of the Wheel Tread of a Freight Wagon When Braking on a Long Downhill Ramp. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhang, Jinyu – PersonEntity: Name: NameFull: Tao, Gongquan – PersonEntity: Name: NameFull: Wen, Zefeng IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar/Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 10402004 Numbering: – Type: volume Value: 69 – Type: issue Value: 2 Titles: – TitleFull: Tribology Transactions Type: main |
| ResultId | 1 |
