考虑轮轨接触损失的动态列车垂向Sperling指标评价模型

doi:10.1007/s12204-022-2551-1

J Shanghai Jiaotong Univ Sci ›› 2024, Vol. 29 ›› Issue (6): 1103-1115.doi: 10.1007/s12204-022-2551-1

考虑轮轨接触损失的动态列车垂向Sperling指标评价模型

刘怡伶1，张经纬1，刘学文1，王岩松1，周跃亭2

(a. Department of Civil Engineering; b. Department of Science and Humanities; c. Department of Computer Science and Engineering, E.G.S. Pillay Engineering College, Nagapattinam 611002, Tamilnadu, India)

收稿日期:2021-07-02 接受日期:2021-11-10 出版日期:2024-11-28 发布日期:2024-11-28
作者简介:（1. 上海工程技术大学机械与汽车工程学院，上海201620；2. 同济大学航空航天与力学学院，上海200092）

Dynamic Train Vertical Sperling Index Evaluation Model Considering Wheel-Rail Contact Loss

LIU Yiling¹ (刘怡伶), ZHANG Jingwei¹(张经纬), LIU Xuewen^1∗(刘学文),WANG Yansong¹(王岩松), ZHOU Yueting²(周跃亭)

(1. School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China; 2. School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China)

Received:2021-07-02 Accepted:2021-11-10 Online:2024-11-28 Published:2024-11-28

摘要/Abstract

摘要： 本研究将半空间13自由度车辆模型、双轨模型和车-桥交互模型集成，形成人-车-轨-桥组合交互模型，尽可能真实地分析车体和乘客的垂直Sperling指数。在这个更大、更完整、更新颖的模型中，考虑了车辆和桥梁之间的分离。通过与Newmark-Beta算法的实测数据和仿真结果对比，验证了该模型的有效性，并且结果表明，这两个值非常接近。在进一步数值分析的基础上，利用开发的车辆-结构动力分析程序，计算了列车和三个等效人体在不同列车速度下的动力响应。四种动力响应的结果表明：轨道不平顺会影响三个等效人体和列车的垂直加速度，并且列车的最佳Sperling指数评价标准不是固定的（假设仅考虑车体时），而是随着列车行驶在不平顺路面上时乘客位置的变化而变化。

关键词: 等效力学模型, 人-车-轨-桥相互作用, Sperling指数分析, 质量-弹簧-阻尼理论

Abstract: In this study, a half-space 13-degree-of-freedom vehicle model, a double track model, and a train-bridge interaction model were integrated to form a combined people-train-rail-bridge interaction model to analyze the vertical Sperling index of the train body and passengers as realistically as possible. In this bigger, more complete, and novel model, the separation between the vehicle and bridge is considered. By comparing measured data and simulated results obtained using the proposed model with the Newmark-Beta algorithm, the effectiveness of the model was verified, and the results demonstrated that these two values were very close. Upon further numerical analysis, the dynamic responses of the train and the three equivalent human bodies at different train speeds were computed using the developed vehicle-structure dynamic analysis program with different abruptness values in the random rail irregularities. The results of these four dynamic responses revealed that the rail irregularities affected the vertical acceleration of the three equivalent human bodies and train, and the best Sperling index evaluation standard for the train was not fixed (as assumed when only considering the train body) but varied with the passenger position as the train traveled over irregularities.

Key words: equivalent mechanical model, people-train-rail-bridge interaction, Sperling index analysis, mass, spring-damping theory

中图分类号:

U270

刘怡伶1, 张经纬1, 刘学文1, 王岩松1, 周跃亭2. 考虑轮轨接触损失的动态列车垂向Sperling指标评价模型[J]. J Shanghai Jiaotong Univ Sci, 2024, 29(6): 1103-1115.

LIU Yiling¹ (刘怡伶), ZHANG Jingwei¹(张经纬), LIU Xuewen^1∗(刘学文), WANG Yansong¹(王岩松), ZHOU Yueting²(周跃亭). Dynamic Train Vertical Sperling Index Evaluation Model Considering Wheel-Rail Contact Loss[J]. J Shanghai Jiaotong Univ Sci, 2024, 29(6): 1103-1115.

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考虑轮轨接触损失的动态列车垂向Sperling指标评价模型

Dynamic Train Vertical Sperling Index Evaluation Model Considering Wheel-Rail Contact Loss

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