A wave-based heat source model for predicting frictional temperature rise in wheel–brake shoe contacts on long downhill slopes

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-06-18 DOI:10.1016/j.csite.2025.106528

Jinyu Zhang , Jianyong Zuo , Jingxian Ding

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引用次数: 0

Abstract

This study presents an enhanced numerical model for simulating frictional temperature rise during long-duration tread braking, employing wave-based heat source formulations. A three-dimensional wheel–brake shoe contact model was developed in ANSYS to compare various heat source models, including constant, moving, and wave-based functions (sine, cosine, triangular, and parabolic). Results demonstrate that wave-based heat sources more realistically capture the spatial and temporal temperature evolution than constant heat sources. Among them, the cosine-based heat source method offered the optimal trade-off between computational efficiency and accuracy, reducing the discrepancy between constant and moving heat source models from 2.54 %–6.10 % to 1.87 %–5.42 %. The moving heat source method, which accounts for contact-separation-recontact processes, provided the most accurate results, showing the least deviation from experimental results. However, it demands over 5.3 times more computational effort than wave-based methods. Based on these results, the cosine-based heat source is recommended for balancing computational efficiency and accuracy in temperature analysis of tread braking under long downhill gradient conditions. This work provides key insights into frictional heat generation and supports engineering design and optimization in braking systems.

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基于波热源的长下坡车轮-制动蹄片接触摩擦温升预测模型

本研究提出了一种改进的数值模型，用于模拟长时间胎面制动过程中的摩擦温升，采用基于波的热源公式。在ANSYS中建立了车轮-制动蹄片三维接触模型，以比较各种热源模型，包括恒定、运动和基于波的函数（正弦、余弦、三角形和抛物线）。结果表明，与恒定热源相比，波浪热源能更真实地捕捉温度的时空变化。其中，基于余弦的热源方法在计算效率和精度之间取得了最佳平衡，将恒定热源和移动热源模型之间的差异从2.54% ~ 6.10%降低到1.87% ~ 5.42%。移动热源法考虑了接触-分离-再接触过程，提供了最准确的结果，与实验结果的偏差最小。然而，它需要比基于波浪的方法多5.3倍的计算量。在此基础上，建议采用余弦热源来平衡长坡度下胎面制动温度分析的计算效率和精度。这项工作为摩擦热的产生提供了关键的见解，并支持制动系统的工程设计和优化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.