The Impact of the High Speed Train in China

Abstract The following research focuses on the dynamic analysis of impact of the high-speed train induced vibrations on the structures located near railway tracks. The office complex chosen as the subject of calculations is located in the northern part of Poland, in Gdańsk, in the proximity of Pendolino, the high speed train route. The high speed trains are the response for the growing needs for a more efficient railway system. However, with a higher speed of the train, the railway induced vibrations might cause more harmful resonance in the structures of the nearby buildings. The damage severity depends on many factors such as the duration of said resonance and the presence of additional loads. The studies and analyses helped to determinate the method of evaluating the impact of railway induced vibrations on any building structure. The dynamic analysis presented in the research is an example of a method which allows an effective calculation of the impact of vibrations via SOFISTIK program.

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Numerical study of the impact of windblown sand particles on a high-speed train

Journal of Wind Engineering and Industrial Aerodynamics ◽

10.1016/j.jweia.2015.06.008 ◽

2015 ◽

Vol 145 ◽

pp. 87-93 ◽

Cited By ~ 21

Author(s):

C. Paz ◽

E. Suárez ◽

C. Gil ◽

M. Concheiro

Keyword(s):

High Speed ◽

Numerical Study ◽

High Speed Train ◽

Windblown Sand ◽

Sand Particles ◽

The Impact

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Aging of High Speed Train Wheelsets and its Quantitative Characteristics Based on Fracture Mechanics for Optimization of In-Service Inspection

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.261-263.1037 ◽

2004 ◽

Vol 261-263 ◽

pp. 1037-1042 ◽

Cited By ~ 4

Author(s):

Sung Jae Kwon ◽

Kazuhiro Ogawa ◽

Tetsuo Shoji

Keyword(s):

Fracture Toughness ◽

Fatigue Crack ◽

Fatigue Crack Growth ◽

Fracture Mechanics ◽

Crack Growth ◽

High Speed ◽

High Speed Train ◽

Load Rate ◽

The Impact ◽

Mechanics Characteristics

The fracture mechanics characteristics in the critical locations of the wheelset for high-speed train have not been studied enough yet despite of severe conditions due to increase in operating speeds. Moreover, the fracture mechanics characteristics with respect to the aging effects of wheelset materials have not been clearly studied. In the present study, the following fracture mechanics characterization tests were carried out in accordance with various locations on the wheelset for high-speed train: fracture toughness depending on load rate, fatigue crack growth rate and fatigue thresholds. The results show that the fatigue crack growth rates in accordance to the locations on wheelset were not remarkably different, and the fatigue threshold in the region of the bolt-hole is lower than that in other regions. The fracture toughness depending on load rate data shows that once the downward curve from quasi-static values was reached, subsequent values showed a slow increase with respect to the impact velocity. This means that dynamic fracture toughness should be considered in the design code of the wheelset material.

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Development of Cast Steel for Brake Disc of High-Speed Train

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.419.370 ◽

2013 ◽

Vol 419 ◽

pp. 370-375 ◽

Cited By ~ 7

Author(s):

Ji Shan Li ◽

He Ping Li ◽

Biao Qiang Jiao ◽

Bao Jia Lv ◽

De Feng Chen ◽

...

Keyword(s):

High Speed ◽

Cast Steel ◽

Physical And Mechanical Properties ◽

Brake Disc ◽

High Speed Train ◽

Treatment Technology ◽

Actual Application ◽

Performance Requirements ◽

The Impact ◽

Alloy Cast

In this paper, based the actual application condition of domestic and international brake disc for high-speed train, the low-alloy cast steel of the brake disc for high-speed train is developed. The chemical composition, melting and casting processes as well as heat treatment technology of disc material are studied. The new low-alloy cast steel has the ideal metallographic microstructure, proper physical and mechanical properties. The tensile strength is more than 1100Mpa in 20°C condition, the impact energy value (Aku2) is more than 8J in-60°C condition. The test results show the new low-alloy cast steel developed can meet the brake disc performance requirements for 380km/h high-speed train.

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A Discrete-Space Train Movement Model for a High-Speed Train under Temporary Speed Restriction

Mathematical Problems in Engineering ◽

10.1155/2020/5386406 ◽

2020 ◽

Vol 2020 ◽

pp. 1-11 ◽

Cited By ~ 1

Author(s):

Sihui Long ◽

Lingyun Meng ◽

Yihui Wang ◽

Jianrui Miao ◽

Xuan Li

Keyword(s):

High Speed ◽

Discrete Space ◽

High Speed Train ◽

Time Duration ◽

Movement Model ◽

High Speed Railway ◽

Running Time ◽

Proposed Model ◽

The Impact ◽

Block Section

This paper constructs a discrete-space train movement model to evaluate the impact of a temporary speed restriction (TSR) for a high-speed railway train. The established model can demonstrate train movement under different TSR conditions. The proposed model can reveal whether a train is affected by the block section influenced by the TSR within a time duration. Moreover, the model can output detailed train trajectories and the minimal train running time between two adjacent stations to analyse the impact of the TSR. Based on the experimental results, we carry out a comprehensive analysis of the impact of several factors on the running time and train trajectories, including the length of the affected area (i.e., number of affected block sections), the location of the TSR, the limited speed value, and the stopping patterns of the train at two adjacent stations. The experiments show that the proposed discrete-space train movement model can be used to analyse the impact of the TSR on a high-speed railway train under various considered TSR conditions.

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