Results 31 to 40 of about 5,309 (123)

Combined Method of Ballastless Track Examination

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2015
For obtaining precise enough values of the required probabilistic characteristics it is necessary to carry out a large number of full-scale experiments demanding for considerable expenditures (especially in the case of ballastless track examination). For
A. V. Savin
doaj  

Development of Credibility Enhancement Method of Oil Products Metering at the Fuel Storage Depots

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2015
Tank calibration curve proves to be one of the most important characteristics in the context of oil products related metering and calculation operations inclusive of those performed in the environment of Unified Automated Accounting System of Diesel Fuel
A. G. Godnev
doaj  

Analysis of cyclic failure in high-specific-energy Li-rich Si/C pouch batteries

open access: yes机车电传动
Capacity decay, performance decline, and other degradations experienced by lithium-rich silicon/carbon pouch batteries during repeated charging and discharging processes are collectively called cyclic failures.
WANG Zhonghai   +5 more
doaj  

Evaluation Method of Freight Car Maintainability Indices

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2015
With emergence of market relations and competitive environment there can be observed intensive market saturation with a great number of railway car products supplied by domestic and foreign manufactures.
G. V. Raikov, S. V. Petrov
doaj  

Design and strength analysis of a test bench for brake calipers on suspended monorail trains

open access: yes机车电传动
Brake calipers serve as the actuators in braking systems and are critical components for ensuring the safe operation of trains. However, there is currently a lack of dedicated test benches for brake calipers used on suspended monorail trains that employ ...
JIANG Yongzhi   +4 more
doaj  

Simulation and experimental study on aerodynamic characteristics of urban rapid trains in tunnel operation

open access: yes机车电传动
This study addresses the aerodynamic challenges faced by urban rapid trains during full-tunnel operation, focusing on transient pressure fluctuations induced when trains pass through tunnels and micro-pressure waves at tunnel exits.
CHEN Xijun   +4 more
doaj  

Research on installation solution of eddy current braking devices on EMU bogies

open access: yes机车电传动
This research explored a solution for installing linear eddy current braking devices on the bogies of existing 400 km/h EMUs, aiming to make their braking systems more economical and environmentally friendly.
LIU Chao   +4 more
doaj  

A decoupling method for wheel-rail contact forces of heavy-duty trains based on big data and neural networks

open access: yes机车电传动
To accurately identify and predict wheel-rail contact forces during the operation of heavy-duty trains, this paper proposes a novel method of decoupling and predicting these forces based on big data related to non-contact strain at the wheel periphery ...
ZHANG Zhenhui   +4 more
doaj  

Research on fault diagnosis of CTCS on-board equipment based on knowledge graph

open access: yes机车电传动
On-board equipment is a critical component of the Chinese train control system (CTCS), characterized by a complex organizational structure. Traditional CTCS on-board equipment faces three major challenges: low efficiency in fault diagnosis, difficulties ...
CHEN Huiyuan
doaj  

Research on an internal model control algorithm and parameter tuning for metro traction PMSMs

open access: yes机车电传动
High power density and high efficiency are two important trends in the research of permanent magnet synchronous motors (PMSM) used in metro traction systems.
SI Junmin, YUE Xuelei, TIAN Di, XU Kelei
doaj  

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