| 基于两种轨道线路建模方法的地铁车轮磨耗预测对比分析 |
| |
| 引用本文： | 黎嘉欣,陶功权,刘希政,梁红琴,温泽峰.基于两种轨道线路建模方法的地铁车轮磨耗预测对比分析[J].工程力学,2022,39(6):226-235. |
| |
| 作者姓名： | 黎嘉欣 陶功权 刘希政 梁红琴 温泽峰 |
| |
| 作者单位： | 1.西南交通大学牵引动力国家重点实验室，成都 610031 |
| |
| 基金项目： | 国家自然科学基金项目(52002342)；;四川省科技计划项目(2020YJ0311,2020YFQ0024)；;中国博士后科学基金面上项目(2020M673281)； |
| |
| 摘 要： | 轨道线路对车轮磨耗具有重要影响。建立地铁车轮磨耗预测模型，模型包括车辆动力学模型、基于Hertz理论和FASTSIM算法的轮轨局部接触模型、基于Tγ/A-磨损率函数的磨耗模型、平滑与更新策略以及轨道线路模型。对比分析等效轨道线路法与真实轨道线路法两种轨道线路建模方法在建模复杂度、车轮磨耗预测结果与计算效率方面的差异。利用实测的车轮磨耗对Tγ/A-磨损率函数进行修正，并对磨耗预测模型进行验证。结果表明:与等效轨道线路法相比，真实轨道线路法建模较为复杂，但其可以更好地模拟实际轨道线路；二者磨耗预测结果差异较小，且均与实测结果较为吻合，但前者计算效率约是后者的3.7倍。采用等效轨道线路法建模可以较好地兼顾计算精度与效率。
|
| 关 键 词： | 轨道线路建模方法 地铁车辆 车轮磨耗预测 轮轨局部接触模型 Tγ/A-磨损率 |
| 收稿时间： | 2021-02-05 |
COMPARATIVE ANALYSIS OF METRO WHEEL WEAR PREDICTION BASED ON TWO TRACK MODELING METHODS |
| |
| Affiliation: | 1.State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China2.School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China |
| |
| Abstract: | The track has an important influence on wheel wear. A metro wheel wear prediction model is established, which includes a vehicle dynamic model, a local contact model based on Hertzian theory and on FASTSIM algorithm, a wear model based on the Tγ/A-wear rate function, a smoothing and updating strategy, and a track model. It is compared for the differences in modeling complexity, in wheel wear prediction results and, in the calculation efficiency between the equivalent track method and the actual track method. The Tγ/A-wear rate function is corrected by the measured wheel wear, and the wear prediction model is verified. The results show that, compared with the equivalent track method, the actual track method is more complex, but it can better simulate the actual track. There is little difference between the two wear prediction results, and both of them are in a good agreement with the measurement results. The calculated efficiency of the equivalent track model is 3.7 times that of the actual track model. It is suggested to use the equivalent track method for modeling, which can give the consideration for calculation accuracy and efficiency. |
| |
| Keywords: | |
|
| 点击此处可从《工程力学》浏览原始摘要信息 |
|
点击此处可从《工程力学》下载全文 |
|
