Random Vibrations of a Bridge - Track Structure - High Speed Train System

2013 ◽  
Author(s):  
M. Podworna ◽  
M. Klasztorny
Keyword(s):  
High Speed ◽  
Track Structure ◽  
High Speed Train ◽  
Random Vibrations ◽  
Train System

scholarly journals Effect of random track irregularities on selected composite bridge / track structure / high-speed train system vibrations

2013 ◽  
Vol 12 (1) ◽  
pp. 259-266
Author(s):  
Monika Podworna ◽  
Marian Klasztorny
Keyword(s):  
High Speed ◽  
Contact Stiffness ◽  
Track Structure ◽  
Computer Algorithms ◽  
High Speed Train ◽  
Approach Slabs ◽  
Composite Bridge ◽  
Random Track Irregularities ◽  
Train System ◽  
Track Irregularities

A theory of the quasi-exact physical and mathematical modelling of the composite (steel–concrete) bridge / ballasted track structure / high-speed train system (BTT) was developed, including viscoelastic suspensions of rail-vehicles on two-axle bogies, the non-linear Hertz contact stiffness and one-sided contact between the wheel sets and the rails, the viscoelastic and inertia features of the bridge, the viscoelastic track structure on and beyond the bridge, the approach slabs, and random track irregularities. Based on this theory, advanced computer algorithms for the BTT numerical modelling were written and a computer program to simulate the vertical vibrations of the BTT systems was developed. The bridge subject to the preliminary dynamic analysis and designed according to Polish standards has a 15.00 m span length. The bridge was loaded by the German ICE-3 high-speed train moving at the critical (180 and 270 km/h) and the maximum (300 km/h) operating speeds.

Harvesting Wind Energy by a Triboelectric Nanogenerator for an Intelligent High-Speed Train System

2021 ◽  
pp. 1490-1499
Author(s):  
Chuguo Zhang ◽  
Yuebo Liu ◽  
Baofeng Zhang ◽  
Ou Yang ◽  
Wei Yuan ◽  
...  
Keyword(s):  
Wind Energy ◽  
High Speed ◽  
Triboelectric Nanogenerator ◽  
High Speed Train ◽  
Train System

Cost–Benefit Analysis of Investment in High-Speed Train System in Spain

2006 ◽  
Vol 1960 (1) ◽  
pp. 135-141 ◽  
Author(s):  
Gema Carrera-Gómez ◽  
Juan Castanedo-Galán ◽  
Pablo Coto-Millán ◽  
Vicente Inglada ◽  
Miguel Angel Pesquera
Keyword(s):  
High Speed ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Benefit Analysis ◽  
High Speed Train ◽  
Train System

scholarly journals Dynamic Interaction of the “Bridge-Train” System on High-Speed Railways

2020 ◽  
Vol 157 ◽  
pp. 06015
Author(s):  
Leonid Diachenko ◽  
Vladimir Smirnov
Keyword(s):  
Numerical Model ◽  
High Speed ◽  
Natural Frequencies ◽  
Dynamic Interaction ◽  
Dynamic Processes ◽  
Bridge Structure ◽  
High Speed Train ◽  
Key Factor ◽  
Passenger Trains ◽  
Train System

This work contains the results of a research of the dynamic processes in the “bridge-train” system while passenger trains move over a bridge structure (overpass) in high-speed. The article presents the methodology of mathematic modelling, and the basic differential equations of the studied system elements motion are provided. Also there is a description of dynamic interaction of the bridge-train system numerical model based on the FEM. In general, taking into account in the design scheme of the “bridge” system not only spans, but also piers with a foundation, it is possible to more accurately determine the values of the bridge natural frequencies, which is a key factor in assessing the dynamic response of a structure when passing a high-speed train.

Vibration Analysis of Vehicle-Rail System under the Condition of Track Stiffness Irregularity

2013 ◽  
Vol 368-370 ◽  
pp. 1431-1437 ◽  
Author(s):  
Tian Yu Lu ◽  
Zu Jun Yu ◽  
Hong Mei Shi
Keyword(s):  
Frequency Spectrum ◽  
Vibration Frequency ◽  
Vibration Analysis ◽  
High Speed ◽  
Track Structure ◽  
High Speed Train ◽  
Track Maintenance ◽  
Rail System ◽  
Coupling System ◽  
Track Stiffness

The interaction of track structure and high-speed train has greater impact on safe and steady running of the trains. This paper obtained acceleration and frequency spectrum of the train's running vibration in the case of sleeper’s spacing and continuous failure， and continuous and spacing loose tie by establishing the vertical model of vehicle-track coupling system, and analyzed the sleeper failure and loose tie which has a greater impact on the 40-80 Hz vibration frequency of the train, which provided a basis for track maintenance.

Complex structured polymer concrete sleeper for rolling noise reduction of high-speed train system

2019 ◽  
Vol 223 ◽  
pp. 110944 ◽  
Author(s):  
Sangkeun Ahn ◽  
Semin Kwon ◽  
Yeon-Taek Hwang ◽  
Hyo-In Koh ◽  
Hak-Sung Kim ◽  
...  
Keyword(s):  
Noise Reduction ◽  
High Speed ◽  
Polymer Concrete ◽  
High Speed Train ◽  
Rolling Noise ◽  
Train System
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