HE Yuanpeng,TU Mandie,ZHENG Yabing,HAN Jian,HE Yulong

• 1:Southwest Jiaotong University

摘要(Abstract)：

Curve squeal is a frequent wheel-rail noise problem on small radius curves that causes serious annoyance for passengers. This paper reviews curve squeal research from three aspects: characteristic tests, prediction models, and three-dimensional(3D) wheel-rail rolling contact finite element models. Field tests identify the leading wheelset as the main source. Laboratory tests reveal falling friction in longitudinal and lateral creepage and their coupling effect. However, whether falling friction is a necessary condition for squeal remains controversial. Measurement averaging effects may influence experimental results.Frequency-domain models identify system instability but cannot capture transient processes. Time-domain models simulate squeal evolution and have progressed from single-mechanism to multi-mechanism frameworks. However, most lack noise calculation and field validation. The 3D explicit transient finite element models have been rigorously validated and achieve highprecision simulation of wheel-rail dynamic contact. They are now being used to focus on curve scenarios, offering a solid platform for exploring squeal mechanisms.

关键词(KeyWords)：

Abstract:

Keywords:

基金项目(Foundation): supported by the National Natural Science Foundation of China (52502431);; the Sichuan Provincial Natural Science Foundation (2026NSFSC1307);; the China Postdoctoral Science Foundation (2025M781573);; the Fundamental Research Funds for the Central Universities (2682025CX097)

作者(Author): HE Yuanpeng,TU Mandie,ZHENG Yabing,HAN Jian,HE Yulong

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