scholarly journals Numerical and experimental investigation of wave dynamic processes in high-speed train/tunnels

2002 ◽  
Vol 18 (3) ◽  
pp. 209-226 ◽  
Author(s):  
Jiang Zonglin ◽  
K. Matsuoka ◽  
A. Sasoh ◽  
K. Takayama
Keyword(s):  
Experimental Investigation ◽  
High Speed ◽  
Dynamic Processes ◽  
High Speed Train ◽  
Wave Dynamic

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.

Theoretical and experimental investigation on bridge-borne noise under moving high-speed train

2013 ◽  
Vol 56 (4) ◽  
pp. 917-924 ◽  
Author(s):  
Xun Zhang ◽  
XiaoZhen Li ◽  
QuanMin Liu ◽  
JinFeng Wu ◽  
YaDong Li
Keyword(s):  
Experimental Investigation ◽  
High Speed ◽  
High Speed Train

Experimental investigation by laser ultrasonics for high speed train axle diagnostics

Ultrasonics ◽  
2015 ◽  
Vol 55 ◽  
pp. 48-57 ◽  
Author(s):  
A. Cavuto ◽  
M. Martarelli ◽  
G. Pandarese ◽  
G.M. Revel ◽  
E.P. Tomasini
Keyword(s):  
Experimental Investigation ◽  
High Speed ◽  
Laser Ultrasonics ◽  
High Speed Train

A Comparison of the Numerical Simulation and Experimental Investigation of the Flow Around a High Speed Train

2002 ◽  
Author(s):  
N. Paradot ◽  
C. Talotte ◽  
H. Garem ◽  
J. Delville ◽  
J.-P. Bonnet
Keyword(s):  
Numerical Simulation ◽  
Experimental Investigation ◽  
Kinetic Energy ◽  
High Speed ◽  
Streamwise Velocity ◽  
High Speed Train ◽  
Wind Tunnel Experiments ◽  
Commercial Code ◽  
Basic Blocks ◽  
Good Agreement

Numerical simulations of the turbulent flow surrounding a high speed train are carried out at SNCF (French Railways) using the commercial code Star CD. The numerical methodology developed consists in building the complete detailed topology of a train with basic blocks. The validation of the method is done through a comparison with wind tunnel experiments. A globally good agreement is found concerning the drag estimation of a short trainset. Predictions of mean streamwise velocity and turbulent kinetic energy show the quite satisfactory capabilities of the methodology.

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