Innovations in Railway Vehicle System: Design, Monitoring and Maintenance

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Vehicle Engineering".

Deadline for manuscript submissions: 30 June 2026 | Viewed by 720

Special Issue Editor


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Guest Editor
State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, China
Interests: vehicle dynamics; vibration and control; fault diagnosis

Special Issue Information

Dear Colleagues,

Railway vehicle systems are at the heart of modern transportation, playing a critical role in ensuring efficiency, safety, and sustainability in passenger and freight services. With the continuous pursuit of higher speeds, improved energy efficiency, and enhanced operational reliability, the design, monitoring, and maintenance of railway systems have become increasingly important. Innovations in these areas are essential to address the challenges of dynamic behavior, structural integrity, and lifecycle management of rail vehicles. This Special Issue aims to present cutting-edge research that advances the science and engineering of railway vehicle systems, focusing on novel design approaches, advanced monitoring techniques, and intelligent maintenance strategies.

This Special Issue invites high-quality research contributions that explore new developments and practical applications in the field. We welcome original studies and comprehensive reviews that introduce innovative ideas, methodologies, and experimental validations to enhance the performance, safety, and durability of railway systems.

In this Special Issue, original research articles and reviews are welcome. Research areas may include, but are not limited to, the following topics:

  • Advanced design of bogies and suspension systems;
  • Condition monitoring and fault diagnosis of railway subsystems;
  • Vehicle–track interaction dynamics and wear prediction;
  • Structural health monitoring and prognostics for rail vehicles;
  • Intelligent maintenance systems and digital twins;
  • Energy-efficient and environmentally friendly vehicle designs;
  • Digital Twin Technology for Railway Vehicle Systems;
  • Noise and vibration control in railway vehicles;
  • Applications of AI and machine learning in railway vehicle health management;
  • Sensor technologies and data-driven evaluation methods.

Dr. Qunsheng Wang
Guest Editor

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Keywords

  • railway vehicle dynamics
  • wheel-rail interaction
  • pantograph-catenary system
  • structural health monitoring (SHM)
  • condition monitoring and fault diagnosis
  • predictive maintenance
  • digital twin
  • traction system monitoring

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Published Papers (1 paper)

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Research

13 pages, 3720 KB  
Article
Study on Pantograph–Rigid Catenary Separation Through Simulation Experiments and the Dynamic Characteristics of DC Arcs
by Zhaofeng Gong, Chang Liu, Shuai Xu, Guangxiao Wang, Wenzheng Liu and Gang Zhang
Machines 2026, 14(3), 264; https://doi.org/10.3390/machines14030264 - 26 Feb 2026
Viewed by 390
Abstract
The pantograph–catenary system is a critical component of the traction power supply network. Due to hard points on the overhead contact line and vibrations of the pantograph, pantograph–catenary separation may occur, leading to offline DC arc events. To investigate the characteristics of DC [...] Read more.
The pantograph–catenary system is a critical component of the traction power supply network. Due to hard points on the overhead contact line and vibrations of the pantograph, pantograph–catenary separation may occur, leading to offline DC arc events. To investigate the characteristics of DC arcs generated during pantograph–catenary separation in metro systems, this study constructs a laboratory platform that simulates the offline process and analyzes the electrical characteristics, optical intensity, and arc-burn duration under different electrode separation conditions. First, a DC pantograph–catenary offline arc simulation platform is developed using a contact wire, a carbon-strip pantograph slider, and a linear motor, enabling slider movement in both horizontal and vertical directions. Second, offline discharge experiments are conducted to compare the discharge process and electrical arc characteristics with and without horizontal slider motion. Finally, arc luminosity and burn duration are measured under various electrode separation configurations, and the influence of voltage level, current level, and electrode material is examined. Experimental results reveal a significant polarity effect, where the arc burn duration is notably longer when the contact wire serves as the cathode than when the carbon slider serves as the cathode. At the instant of separation, the high electric field intensity within the micro-gap triggers pronounced “peak phenomena” in both arc resistance and power, accompanied by abrupt voltage surges and transient current dips. Furthermore, the introduction of horizontal motion modulates the arcing process, causing the stable arcing voltage to follow a distinctive trend of a slow increase followed by a gradual decrease, which differs from static separation characteristics. Finally, this study demonstrates that voltage levels exert a more dominant influence on arc luminosity and duration than current levels, while the maintenance voltage of the arc channel remains significantly lower than the air breakdown voltage. Full article
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