胶轮地铁道岔侧向通过性影响因素分析及优化
杜子学1徐晨瑜1杨震1廖从建2
Analysis and Optimization of Influencing Factors for Turnout Lateral Passing Performance of Rubber-tired Metro
DU Zixue1XU Chenyu1YANG Zhen1LIAO Congjian2
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作者信息:1.重庆交通大学机电与车辆工程学院，400074，重庆
2.中车株洲电力机车有限公司，412001，株洲
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Affiliation:1.School of Mechatronics and Vehicle Engineering，Chongqing Jiaotong University, 400074, Chongqing, China
2.CRRC Zhuzhou Locomotive Co., Ltd., 412001, Zhuzhou, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2025.01.030
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中图分类号/CLCN:U270.33
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栏目/Col:研究报告
摘要:
［目的］胶轮地铁车辆在道岔区段由胶轮提供走行支撑，钢轮提供导向，轮轨关系较为特殊。为了提高胶轮地铁车辆的运行品质，有必要对道岔侧向通过性进行研究。［方法］依托墨西哥城地铁1号线新型胶轮地铁车辆，分析了车辆的走行机理，建立了车辆动力学模型，提出了车辆道岔侧向通过性的评价指标；对车辆的主要悬挂参数进行了灵敏度分析，得出了悬挂参数对评价指标的影响系数，运用第二代非支配排序遗传算法对影响较大的车辆悬挂参数进行了优化。［结果及结论］将走行轮垂向力、导向轮横向力、轮轴横向力、走行轮载荷转移系数、车体侧滚角作为评价指标，得出空气弹簧垂向刚度对胶轮地铁车辆道岔侧向通过性影响最大，其余依次为垂向减振器阻尼、导向轮径向刚度等。优化后，车体侧滚角降低了8.7%，走行轮载荷转移系数降低了16.0%，车辆满足以45km/h的速度通过道岔，且车辆道岔侧向通过性得到提高。
Abstracts:
［Objective］ In the turnout section, the wheel-rail relationship of the rubber-tired metro vehicle is relatively special as it is the rubber tire that provides running support and the steel wheel that provides guidance. In order to improve the operation quality of the rubber-tired metro vehicle, it is necessary to study the lateral passing performance of the turnout. ［Method］ Based on the new type of rubber-tired metro vehicle on Mexico City Metro Line 1, the running mechanism of the vehicle is analyzed, the dynamics model of the vehicle is established, and the evaluation index of the vehicle turnout lateral passing performance is proposed. Through analyzing the sensitivity of the vehicle main suspension parameters, their influencing coefficient on the evaluation index is obtained. The parameters with greater influence are optimized by using the non-dominated sorting genetic algorithm-II. ［Result & Conclusion］ With the vertical force of the running wheel, the lateral force of the guide wheel, the lateral force of the axle, the load transfer coefficient of the running wheel, and the roll angle of the car body as evaluation indexes, it is concluded that the vertical stiffness of air spring has the greatest impact on the turnout lateral passing performance of rubber-tired metro vehicles, followed by the damping of the vertical shock absorber and the radial stiffness of the guide wheel and etc. After optimization, the roll angle of the car body is reduced by 8.7%, and the load transfer coefficient of the running wheel by 16.0%. The vehicle can pass through the turnout at a speed of 45 km/h, and the turnout lateral passing performance of the vehicle is improved.
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