Results 31 to 40 of about 1,480 (206)

Research on Detection and Optimization Measures of High-speed EMU Power Network Voltage Interruption

机车电传动, 2020
With the increase of EMU speed, pantograph catenary offline has become a common and inevitable phenomenon in high-speed EMU operation. The network voltage interruption caused by pantograph catenary offline will affect the reliable operation of EMU ...
Hong SHEN, Dong CHEN, Gang FU
doaj  

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

On aerodynamic noises radiated by the pantograph system of high-speed trains

, 2013
Pantograph system of high-speed trains become significant source of aerodynamic noise when travelling speed exceeds 300 km/h. In this paper, a hybrid method of non-linear acoustic solver (NLAS) and Ffowcs Williams–Hawkings (FW–H) acoustic ...
Yu HH(喻华华), Zhang HQ(张会琴), Li, JC (reprint author), Chinese Acad Sci, Inst Mech, LMFS, Beijing 100190, Peoples R China., Li JC(李家春)   +3 more
core   +1 more source

Coupling effects between pantograph of high-speed train and tunnel

, 2022
Compression and expansion waves are generated as a train enters a tunnel at high speed. The waves ceaselessly pass through a pantograph as they propagate back and forth in the tunnel; air flow sharply jumps at the exit of the tunnel.
张玲芳, 杨国伟, 郭易, 纪占玲, 郭迪龙   +4 more
core   +2 more sources

Analysis of Pantograph Key Parameters Suitable for 200 km/h Train Overhead Rigid Catenary

Chengshi guidao jiaotong yanjiu
Objective The compatibility between the ORC (overhead rigid catenary) and the pantograph directly affects the current collection performance of the PC (pantograph-catenary) system.
TIAN Cai, FENG Chao, DAI Hongyu
doaj   +1 more source

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

High Voltage, EarlyView.
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

Active Control Method for Pantograph-Catenary System Based on Neural Network PID Under Crosswind Conditions

Machines
Crosswind is a critical environmental factor affecting the dynamic interaction between the pantograph and catenary in high-speed trains, which can severely compromise the operational stability of the system. To address this challenge, this study develops
Mengyao Wang, Yan Xu, Like Pan, William Zhendong Liu, Ziwei Zhou   +4 more
doaj   +1 more source

Research progress and prospect of pantograph slide materials

机车电传动, 2023
The pantograph slide is the core equipment for the train to obtain energy, and the good performance of its material is the key to ensuring the trains' safe and stable operation.
WU Guangning, WU Yao, HUANG Guizao, DONG Keliang, GAO Guoqiang, WEI Wenfu, YANG Zefeng   +6 more
doaj  

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

Application Status and Development Trends of DC Ice‐Melting Devices in China's Power Grid

IET Smart Energy Systems, EarlyView.
This paper summarises the development history and engineering application status of DC ice‐melting devices (DCIMD) in China, analyses the principles, advantages, disadvantages and adaptability of mainstream topologies and discusses the key problems and corresponding improvement directions.
Ming Lei, Tianlong Zhang, Zhenglin Li, Jian Wang, Tao Zhang, Peng Wang, Ruiqi Zhan   +6 more
wiley   +1 more source