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Overview of China high-speed railway earthquake early-warning system: 《High-Speed Railway》2024年第4期274-282,共9页Mingduan Liu Kai Liu; supported by the Science and Technology Development Plan of China State Railway Group Co.,Ltd.(J2022G007);China Academy of Railway Sciences Group Co.,Ltd.(2023YJ103).; Amidst China's aggressive expansion of its high-speed rail network,the intersection of these lines with seismic fault zones has elevated the risk profile for high-speed rail travel.To counteract the potential dangers ...; 关键词：High-speed railway earthquake early-warning Seismic attenuation model Earthquake emergency disposal AI-based algorithm optimization

Dynamic response of high-speed railway vehicle and welded turnout on large-span bridges based on rigid-flexible coupling system: 《High-Speed Railway》2024年第4期203-218,共16页Xiaopei Cai Zijie Zhong Albert Lau Qian Zhang Yue Hou; supported by the National Natural Science Foundation of China(U23A20666);the China National Railway Group Corporation Science and Technology Research and Development Program(N2023G083).; Welded Turnout on Large-span Bridge(WTLB)is a complex multi-layer heterogeneous system and can significantly influence the service performance of High-Speed Railway(HSR).Understanding the coupling dynamic response of ...; 关键词：High-speed railway Welded turnout Large-span bridge Dynamic response Rigid-flexible coupling system

Local and global sensitivity analysis for railway upgrading between hydrogen fuel cell and electrification: 《High-Speed Railway》2024年第4期219-229,共11页Yizhe Zhang Zhongbei Tian Kangrui Jiang Stuart Hillmansen Clive Roberts; In the field of rail transit,the UK Department of Transport stated that it will realize a comprehensive transformation of UK railways by 2050,abandoning traditional diesel trains and upgrading them to new environmenta...; 关键词：Local sensitivity analysis Global sensitivity analysis Hydrogen fuel cell railway ELECTRIFICATION Railway upgrading

Topology optimization of a ratchet compensation structure subject to periodic constraints: 《High-Speed Railway》2024年第4期230-240,共11页Taining Qi Tao Yan Shiju Song Yu Zhu Geng Chen; supported by the National Natural Science Foundation of China(Grant No.52075033);Research and Development Plan of REG(Grant No.2023-20)。; The railway pantograph-catenary system employs a ratchet compensation device to sustain the tension of the contact wire.However,the excessive weight associated with the ratchet structure adversely affects the performa...; 关键词：Topology optimization SIMP density-based method Ratchet compensation device ANSYS Workbench

Dynamic squeezing behavior of tamping machine in railway maintenance: 《High-Speed Railway》2024年第4期241-247,共7页Liang Gao Shunwei Shi Chang Liu Yixiong Xiao Chunyu Wang Yuze Wang; supported by the Postdoctoral Fellowship Program of China Postdoctoral Science Foundation under Grant Number GZC20240099;the Fundamental Research Funds for the Central Universities under Grant Number 2024XKRC034 and 2022JBQY009。; Tamping squeeze is essential for maintaining ballasted tracks.Previous studies have simulated squeezing behavior as a linear motion with a constant squeezing distance,which is unsuitable for various ballast beds in th...; 关键词：Ballast bed Tamping maintenance Squeezing behavior Compacting motion Releasing motion

WiFi performance analysis in high-speed railway communication: 《High-Speed Railway》2024年第4期248-258,共11页Ziqi Zhang Fengye Hu Zhuang Ling Cong Liu Fengting Xu; support from the Beijing Engineering Research Center of High-speed Railway Broadband Mobile Communications(BHRC-2024-1);Beijing Jiaotong University,the National Natural Science Foundation of China(U21A20445).; In High-Speed Railways(HSRs),the Train Control and Management System(TCMS)plays a crucial role.However,as the demand for train networks grows,the limitations of traditional wired connections have become apparent.This ...; 关键词：High-speed railway Train wireless communication network WIFI Communication performance measurement

A miniaturized wideband high-gain end-fire antenna for 5G-R communication applications: 《High-Speed Railway》2024年第4期259-264,共6页Yutong Shi Yanliang Wu Changhai Hu Zheng Ma Wen Luo; supported in part by the National Natural Science Foundation of China(Nos.U2268201,62271419);in part by the State Key Laboratory of Rail Transit Engineering Informatization(FSDI)under Grant 2022KY50ZD(ZNXT)-01.; This paper presents a miniaturized wideband high-gain microstrip end-fire antenna specifically designed for 5G-R communication applications.The antenna structure comprises a microstrip folded dipole resonator and end-...; 关键词：End-fire antenna Dipole resonator WIDEBAND HIGH-GAIN Intercalated Coupling Structures(ICS)

High-precision urban rail map construction based on multi-sensor fusion: 《High-Speed Railway》2024年第4期265-273,共9页Zhihong Huang Ruipeng Gao Zejing Xu Yiqing Liu Zongru Ma Dan Tao; supported by the Beijing Natural Science Foundation(No.L221003).; The construction of high-precision urban rail maps is crucial for the safe and efficient operation of railway transportation systems.However,the repetitive features and sparse textures in urban rail environments pose ...; 关键词：Urban rail Multi-sensor fusion Point-line features Photometric error

Artificial-intelligent-powered safety and efficiency improvement for controlling and scheduling in integrated railway systems: 《High-Speed Railway》2024年第3期172-179,共8页Jun Liu Gehui Liu Yu Wang Wanqiu Zhang; supported by the National Key R&D Program of China(2022YFB4300500).; The multi-mode integrated railway system,anchored by the high-speed railway,caters to the diverse travel requirements both within and between cities,offering safe,comfortable,punctual,and eco-friendly transportation s...; 关键词：High-speed railway Multi-mode railway system Artificial intelligence Large-scale mode system framework Safety and efficiency improvement

Generalized autoencoder-based fault detection method for traction systems with performance degradation: 《High-Speed Railway》2024年第3期180-186,共7页Chao Cheng Wenyu Liu Lu Di Shenquan Wang; supported by the National Natural Science Foundation of China(Grant Nos.U20A20186 and 62372063).; Fault diagnosis of traction systems is important for the safety operation of high-speed trains.Long-term operation of the trains will degrade the performance of systems,which decreases the fault detection accuracy.To ...; 关键词：Performance degradation Generalized autoencoder Fault detection Traction control systems High-speed trains

《High-Speed Railway》