scholarly journals Numerical Model for Predicting the Noise Reduction of Noise Barrier of High Speed Railway and Its Test Validation

2013 ◽  
Vol 49 (10) ◽  
pp. 14 ◽  
Author(s):  
Xin ZHOU
Keyword(s):  
Numerical Model ◽  
Noise Reduction ◽  
High Speed ◽  
Test Validation ◽  
High Speed Railway ◽  
Noise Barrier

Numerical Model Updating Technique for Estimating Load Carrying Capacities of High Speed Railway Bridges

2016 ◽  
Vol 106 (8) ◽  
pp. 490-497
Author(s):  
Dong-Uk PARK ◽  
Jae-Bong KIM ◽  
Nam-Sik KIM ◽  
Sung-Il KIM
Keyword(s):  
Numerical Model ◽  
High Speed ◽  
Model Updating ◽  
High Speed Railway ◽  
Railway Bridges ◽  
Load Carrying

Design of noise barrier inspection system for high-speed railway

2016 ◽  
Author(s):  
Bingqian Liu ◽  
Shuangyun Shao ◽  
Qibo Feng ◽  
Le Ma ◽  
Kim Cholryong
Keyword(s):  
High Speed ◽  
Inspection System ◽  
High Speed Railway ◽  
Noise Barrier

FSI Research on the Noise Barrier of High-Speed Railway in the Composite Conditions

2013 ◽  
Vol 307 ◽  
pp. 149-155
Author(s):  
Hong Chao Wang ◽  
Jin Fa Xie
Keyword(s):  
High Speed ◽  
Equivalent Stress ◽  
Wind Load ◽  
Wind Pressure ◽  
Fluid Distribution ◽  
Transient Dynamic Analysis ◽  
Obvious Effect ◽  
High Speed Railway ◽  
Noise Barrier ◽  
Natural Wind

Based on the model, it firstly gets the fluid distribution of noise barrier of high-speed railway, which is under the action of train-induced impulsive wind pressure and natural wind load, then transfers the computed result as exported load to the structural analysis module through the coupling interface, by proceeding the transient dynamic analysis and modal analysis, it finally obtains the equivalent stress, total deformation and modal distribution of noise barrier. The results indicate that, compared with train-induced impulsive wind pressure, the natural wind load has a more obvious effect on the structural performance of noise barrier, and its natural frequency is much less than the external load’s, so there will be no resonate happen in practice.

scholarly journals Negative External Cost Computing Model for Noise of China’s High-speed Railway and its Verification and Trend Analysis

2021 ◽  
Vol 261 ◽  
pp. 03029
Author(s):  
Xiaomei Xuan
Keyword(s):  
Noise Reduction ◽  
High Speed ◽  
Early Stage ◽  
Rapid Development ◽  
Density Ratio ◽  
External Noise ◽  
Future Trend ◽  
Cost Calculation ◽  
External Cost ◽  
High Speed Railway

The purpose of this paper is to calculate the external noise cost of China’s high-speed railway and forecast its future trend. Firstly, the unit value transfer method after correction is selected as a method of calculation. Secondly, the noise cost calculation model of China’s high-speed railway is established by introducing the correction factors such as GDP-PPP, population density ratio and CPI ratio. At last, the external noise cost since the opening of high-speed railway is calculated. The model validation results show that although the average external noise cost of high-speed railway increases year by year, it does not increase significantly. This is not only related to economic growth and improvement of noise reduction technology, but also related to the increase of investment in noise reduction facilities in the early stage. Compared with it, the total external cost of high-speed railway noise increases obviously, which is positively related to the rapid development of high-speed railway. With the increase of high-speed railway mileage and passenger turnover, the total noise cost increases significantly. It can be predicted that with the implementation of high-speed railway planning in the future, the negative external cost of noise will continue to increase.

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