Results 31 to 40 of about 507 (175)

Research on the Influence of Pantograph Catenary Contact Loss Arcs and Zero-Crossing Stage on Electromagnetic Disturbance in High-Speed Railway

Energies, 2023
During train travel, various factors, such as body vibration, uneven contact lines, and hard spots on carbon sliding plates and over electric neutral zones, often lead to brief separation between the pantograph and the contact line, i.e., the pantograph ...
Yixuan Yang, Hefei Cao, Mingzhi Zhang, Zhiguo Su, Man Hu, Mengzhe Jin, Shanghe Liu   +6 more
doaj   +1 more source

Virtual articulation using sequential mandibular intraoral scans and computational functional rotation reference determination—Proof‐of‐concept

Journal of Prosthodontics, EarlyView.
Abstract Virtual articulators require accurate spatial orientation of digital casts for meaningful occlusal analysis during prosthesis design. Current methods for establishing this orientation rely on facial scanning, cone‐beam computed tomography, electronic jaw tracking, or arbitrary population–based values. This proof‐of‐concept technique presents a
Mohamed Sherif Omar, Chao‐Chieh Yang, Dean Morton, Wei‐Shao Lin   +3 more
wiley   +1 more source

Review of Catenary Icing on High‐Speed Railways: Characteristics, Impact and Countermeasures

High Voltage, Volume 11, Issue 3, Page 601-619, June 2026.
ABSTRACT The pantograph–catenary system (PCS) is the only path for electrified railway trains to acquire energy. Catenary icing during winter is a common natural phenomenon, which usually leads to the deterioration of the current quality and severely affects the operational safety of trains.
Zheng Li, Guizao Huang, Zhijin Zhang, Yang Liu, Guoqiang Gao, Guolin Yang, Xi Yang, Guangning Wu   +7 more
wiley   +1 more source

The Generating Mechanism and Suppression Measure of the ‘Wheel‐Rail’ Rolling Arc for Electrified Trains

High Voltage, Volume 11, Issue 2, Page 370-384, April 2026.
ABSTRACT As the ‘main blood vessel’ of the traction power supply system for high‐speed trains, the ‘wheel‐rail’ coupling grounding reflux system provides the vital channel to send traction current back to terrestrial substations; meanwhile, the rail track also plays a role in transmitting the train's occupancy signal to the control system. An insulated
Jiefu Hou, Song Xiao, Mengqiao Wang, Pupu Li, Guangning Wu, Ye Cao, Guoqiang Gao, Yujun Guo, Xueqin Zhang, Yongdong He   +9 more
wiley   +1 more source

Pantograph Body and Its Installation Strength Research of Test EMUs

机车电传动, 2013
In order to understand pantograph performance on domestic high-speed test EMUs, pantograph mechanical and structural strength was anticipated. Pantograph body and base finite element analysis model of test EMUs was built, and pantograph body parts ...
SUN Chuan-ming
doaj  

Modeling and Control of Rail Potential With Partial Backflow Obstruction in DC Metro Systems

IET Electrical Systems in Transportation, Volume 2026, Issue 1, 2026.
Running rails are employed as the reflux conductor in DC metro systems, whose longitudinal resistance and joint resistance usually increase with the operating years of the system. Subsequently, the partial backflow obstruction occurs, which will greatly increase rail potential (RP) and endanger the security of the metro line operation. In this paper, a
Qiaoyue Li, Xin Zheng, Tongtong Zhou, Guifu Du, Fengchuan Xu, Yajie Zou   +5 more
wiley   +1 more source

Heavy‐Haul Railway Alignment Design Considering the Heavy‐to‐Light Ratio and Regenerative Braking Energy

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This study proposes an NSGA‐II framework enhanced with struct‐based encoding for bi‐objective optimization of heavy‐haul railway vertical alignment (construction cost and energy consumption), which requires no preset vertical points of intersection (VPIs) and inherently meets most constraints.
Shengda Zhuo, Shuangting Xu, Yan Gao, Tianlong Zhang, Qing He   +4 more
wiley   +1 more source

Modeling and robust control of a high speed train pantograph

Mechanical Engineering Journal, 2015
For high-speed trains, active control of the pantograph is crucial technology to collect electrical current from the overhead contact wire. In this paper, a mathematical model of the pantograph-catenary system is developed to design a controller, and then a sliding mode controller is proposed to regulate the contact force in the presence of variation ...
YOKOYAMA, Makoto, YOKOYAMA, Sho, SAKAKIBARA, Hikaru, KOBAYASHI, Shigeyuki, USUDA, Takayuki, IKEDA, Mitsuru   +5 more
openaire   +3 more sources

Dual‐Frequency Piezoelectric Vibration Energy Harvester for IoT‐Based Real‐Time Freight Train Health Monitoring in Mongolia

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This study evaluates the potential of piezoelectric vibration energy harvesting to power IoT nodes for real‐time health monitoring of the Mongolian railway. Triaxial vibration data were collected at 500 Hz over a 400 km freight route under loaded and unloaded conditions using a custom ESP32‐S3 + MPU9250 system, and dominant frequencies were extracted ...
Bumduuren Pumbuurei, Batdalai Sukh, Nyamsuren Purevsuren, Buyankhishig Zundui, Myeirambyek Tashkyen, Heemin Park   +5 more
wiley   +1 more source

Analysis of flow velocity fluctuation around a train model running in a tunnel using restored waveforms

Mechanical Engineering Journal, 2021
A pantograph receives aerodynamic force while a train is traveling. As the aerodynamic force increases in proportion to the square of the flow velocity relative to the pantograph, its influence on the pantograph becomes apparent, especially for high ...
Katsuhiro KIKUCHI, Yuhei NOGUCHI, Minoru SUZUKI   +2 more
doaj   +1 more source