High-speed Railway最新文献_第5页

Research and application of key technologies for data delivery in railway engineering design based on metadata 研究和应用基于元数据的铁路工程设计数据传输关键技术

High-speed Railway Pub Date : 2024-03-01 DOI: 10.1016/j.hspr.2024.01.003

Xiangru Lyu, Xunxiao Yin, Kun Wang, Yongwen Wei

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引用次数: 0

Key technologies for wireless network digital twin towards smart railways 面向智能铁路的无线网络数字孪生关键技术

High-speed Railway Pub Date : 2024-03-01 DOI: 10.1016/j.hspr.2024.01.004

Ke Guan , Xinghai Guo , Danping He , Philipp Svoboda , Marion Berbineau , Stephen Wang , Bo Ai , Zhangdui Zhong , Markus Rupp

{"title":"Key technologies for wireless network digital twin towards smart railways","authors":"Ke Guan , Xinghai Guo , Danping He , Philipp Svoboda , Marion Berbineau , Stephen Wang , Bo Ai , Zhangdui Zhong , Markus Rupp","doi":"10.1016/j.hspr.2024.01.004","DOIUrl":"10.1016/j.hspr.2024.01.004","url":null,"abstract":"<div><p>An emerging railway technology called smart railway promises to deliver higher transportation efficiency, enhanced comfort in services, and greater eco-friendliness. The smart railway is expected to integrate fifth-generation mobile communication (5G), Artificial Intelligence (AI), and other technologies, which poses new problems in the construction, operation and maintenance of railway wireless networks. Wireless Digital Twins (DTs), which have recently emerged as a new paradigm for the design of wireless networks, can address these problems and enable the whole lifecycle management of railway wireless networks. However, there are still many scientific issues and challenges for railway-oriented wireless DT. Relevant key technologies to solve these problems are introduced and described, including characterization of materials' physical-EM properties, autonomous reconstruction of Three-dimensional (3D) environment model, AI-empowered environmental cognition, Ray-Tracing (RT), model-based and AI-based RT acceleration, and generation of multi-spectra sensing data. Moreover, this paper presents our research results for each key technology and describes the wireless network planning and optimization system based on high-performance RT developed by our laboratory. This paper outlines the framework for realizing the wireless DT of smart railways, providing the direction for future research.</p></div>","PeriodicalId":100607,"journal":{"name":"High-speed Railway","volume":"2 1","pages":"Pages 1-10"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949867824000096/pdfft?md5=aebf8963273edd2adbf7f1b5fcb2353d&pid=1-s2.0-S2949867824000096-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139872146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Key Technologies for Wireless Network Digital Twin Towards Smart Railways 面向智能铁路的无线网络数字孪生关键技术

High-speed Railway Pub Date : 2024-02-01 DOI: 10.1016/j.hspr.2024.01.004

K. Guan, Xinghai Guo, Danping He, P. Svoboda, Marion Berbineau, Bo Ai, Z. Zhong, Markus Rupp

引用次数: 0

High-speed railway track components inspection framework based on YOLOv8 with high-performance model deployment 基于 YOLOv8 的高速铁路轨道部件检测框架与高性能模型部署

High-speed Railway Pub Date : 2024-02-01 DOI: 10.1016/j.hspr.2024.02.001

Youzhi Tang, Yu Qian

引用次数: 0

A study on temperature monitoring method for inverter IGBT based on memory recurrent neural network 基于记忆递归神经网络的逆变器 IGBT 温度监控方法研究

High-speed Railway Pub Date : 2024-02-01 DOI: 10.1016/j.hspr.2024.02.003

Yunhe Liu, Tengfei Guo, Jinda Li, Chunxing Pei, Jianqiang Liu

引用次数: 0

Influence of span-to-depth ratio on dynamic response of vehicle-turnout-bridge system in high-speed railway 跨深比对高速铁路车辆-道岔-桥梁系统动态响应的影响

High-speed Railway Pub Date : 2024-02-01 DOI: 10.1016/j.hspr.2024.02.002

Chuanqing Dai, Tao Xin, Shenlu Qiao, Yanan Zhang, Pengsong Wang, M. Nadakatti

引用次数: 0

Determining future high speed rail review topics through bibliometric analysis 通过文献计量分析确定未来高速铁路审查主题

High-speed Railway Pub Date : 2024-02-01 DOI: 10.1016/j.hspr.2024.01.005

Heather Steele, Marcelo Blumenfeld, Paul Plummer

引用次数: 0

Dynamic constraint and objective generation approach for real-time train rescheduling model under human-computer interaction 人机交互下列车实时调度模型的动态约束与目标生成方法

High-speed Railway Pub Date : 2023-12-01 DOI: 10.1016/j.hspr.2023.10.002

Kai Liu , Jianrui Miao , Zhengwen Liao , Xiaojie Luan , Lingyun Meng

{"title":"Dynamic constraint and objective generation approach for real-time train rescheduling model under human-computer interaction","authors":"Kai Liu , Jianrui Miao , Zhengwen Liao , Xiaojie Luan , Lingyun Meng","doi":"10.1016/j.hspr.2023.10.002","DOIUrl":"10.1016/j.hspr.2023.10.002","url":null,"abstract":"<div><div>Real-time train rescheduling plays a vital role in railway transportation as it is crucial for maintaining punctuality and reliability in rail operations. In this paper, we propose a rescheduling model that incorporates constraints and objectives generated through human-computer interaction. This approach ensures that the model is aligned with practical requirements and daily operational tasks while facilitating iterative train rescheduling. The dispatcher’s empirical knowledge is integrated into the train rescheduling process using a human-computer interaction framework. We introduce six interfaces to dynamically construct constraints and objectives that capture human intentions. By summarizing rescheduling rules, we devise a rule-based conflict detection-resolution heuristic algorithm to effectively solve the formulated model. A series of numerical experiments are presented, demonstrating strong performance across the entire system. Furthermore, the flexibility of rescheduling is enhanced through secondary analysis-driven solutions derived from the outcomes of human-computer interactions in the previous step. This proposed interaction method complements existing literature on rescheduling methods involving human-computer interactions. It serves as a tool to aid dispatchers in identifying more feasible solutions in accordance with their empirical rescheduling strategies.</div></div>","PeriodicalId":100607,"journal":{"name":"High-speed Railway","volume":"1 4","pages":"Pages 248-257"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136161022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on fatigue evaluation method of high-speed train axle based on axle box acceleration 基于轴箱加速度的高速列车车轴疲劳评估方法研究

High-speed Railway Pub Date : 2023-12-01 DOI: 10.1016/j.hspr.2023.12.002

Wenjing Wang , Yiming Zeng , Ruiguo Yan , Yiyue Chen

{"title":"Research on fatigue evaluation method of high-speed train axle based on axle box acceleration","authors":"Wenjing Wang , Yiming Zeng , Ruiguo Yan , Yiyue Chen","doi":"10.1016/j.hspr.2023.12.002","DOIUrl":"10.1016/j.hspr.2023.12.002","url":null,"abstract":"<div><div>As a key safety component of the high-speed train, fatigue fracture of the axle would lead to major accidents such as derailment or overturning. The complexity of the axle dynamic stress test seriously enhances the difficulty of axle fatigue damage analysis. In this paper, the dynamic stress test of the high-speed train axle was carried out, the axle box acceleration was monitored on-track during the test, and the relationship between the axle stress spectrum and acceleration was analyzed on-track. The results show that the relationships between the axle equivalent stresses and the Root Mean Square (RMS) values of the axle box vertical acceleration and lateral acceleration exhibit a strong joint probability density distribution. The concept of the virtual surface density of wheel-rail contact is also proposed to realize the purpose of using axle box acceleration to deduce axle equivalent force. The results quantify the relationship between axle box acceleration and axle equivalent force, provide a new method for predicting the axle damage using the acceleration RMS values, and open up a new approach for structural health monitoring of high-speed train axles.</div></div>","PeriodicalId":100607,"journal":{"name":"High-speed Railway","volume":"1 4","pages":"Pages 233-240"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138610543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Static strength and crashworthiness analysis of a train cowcatcher at a running speed of 160 km/h

High-speed Railway Pub Date : 2023-12-01 DOI: 10.1016/j.hspr.2023.11.004

Yanzhao Guo , Lele Zhang , Weiyuan Dou , Yu Zhu , Haifeng Zhang

{"title":"Static strength and crashworthiness analysis of a train cowcatcher at a running speed of 160 km/h","authors":"Yanzhao Guo , Lele Zhang , Weiyuan Dou , Yu Zhu , Haifeng Zhang","doi":"10.1016/j.hspr.2023.11.004","DOIUrl":"10.1016/j.hspr.2023.11.004","url":null,"abstract":"<div><div>The cowcatcher is one of the unique devices at the front end of the train, which can remove obstacles on the track by crashing before the vehicle body to ensure the safety of the train. When a collision accident happens, the cowcatcher serves as the first energy-absorbing structure to dissipate and guide the collision energy. The design of the existing cowcatcher of multiple units generally focuses on the good ability to remove obstacles, while the secondary function, the crashworthiness of orderly deformation under collision, still needs further research. In this study, a finite element model of structural static load and collision analysis was established under standard EN 15227, with the cowcatcher for 160 km/h train as the prototype. Then the solution and simulation process was accomplished under the environment of ANSYS and LS-DYNA. The analysis results showed that the structural static strength of the current cowcatcher met the requirements of the standard EN 15227, and the longitudinal stiffness was evenly distributed. When removing the obstacles with low mass, the impact force was small and the structure would not produce obvious deformation; when removing the obstacles with large mass, the impact force was large and the shear fracture might occur at the connection of the cowcatcher.</div></div>","PeriodicalId":100607,"journal":{"name":"High-speed Railway","volume":"1 4","pages":"Pages 258-264"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143200325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0