scholarly journals Influence of Top Shape on Noise Reduction Effect of High-Speed Railway Noise Barrier

2019 ◽  
Vol 493 ◽  
pp. 012043 ◽  
Author(s):  
Wenjuan Sun ◽  
Li Liu ◽  
Hongli Yuan ◽  
Qiaoping Su
Keyword(s):  
Noise Reduction ◽  
High Speed ◽  
High Speed Railway ◽  
Railway Noise ◽  
Noise Barrier ◽  
Reduction Effect

Case study: Prediction and field tests of railway noise and effects of a low-height noise barrier

2020 ◽  
Vol 68 (4) ◽  
pp. 303-314
Author(s):  
Yuna Park ◽  
Hyo-In Koh ◽  
University of Science and Technology, Transpo ◽  
University of Science and Technology, Transpo ◽  
University of Science and Technology, Transpo ◽  
...  
Keyword(s):  
High Speed ◽  
Field Tests ◽  
Residential Areas ◽  
Railway Systems ◽  
Railway Noise ◽  
Sound Levels ◽  
Noise Barrier ◽  
The Difference ◽  
Reduction Effect ◽  
The Impact

Railway noise is calculated to predict the impact of new or reconstructed railway tracks on nearby residential areas. The results are used to prepare adequate counter- measures, and the calculation results are directly related to the cost of the action plans. The calculated values were used to produce noise maps for each area of inter- est. The Schall 03 2012 is one of the most frequently used methods for the production of noise maps. The latest version was released in 2012 and uses various input para- meters associated with the latest rail vehicles and track systems in Germany. This version has not been sufficiently used in South Korea, and there is a lack of standard guidelines and a precise manual for Korean railway systems. Thus, it is not clear what input parameters will match specific local cases. This study investigates the modeling procedure for Korean railway systems and the differences between calcu- lated railway sound levels and measured values obtained using the Schall 03 2012 model. Depending on the location of sound receivers, the difference between the cal- culated and measured values was within approximately 4 dB for various train types. In the case of high-speed trains, the value was approximately 7 dB. A noise-reducing measure was also modeled. The noise reduction effect of a low-height noise barrier system was predicted and evaluated for operating railway sites within the frame- work of a national research project in Korea. The comparison of calculated and measured values showed differences within 2.5 dB.

scholarly journals Noise Reduction Effect of Noise Barrier for Shinkansen Based on Y-shaped Structure

2006 ◽  
Vol 47 (3) ◽  
pp. 162-168 ◽  
Author(s):  
Kaoru MURATA ◽  
Kiyoshi NAGAKURA ◽  
Toshiki KITAGAWA ◽  
Shin-ichiro TANAKA
Keyword(s):  
Noise Reduction ◽  
Noise Barrier ◽  
Reduction Effect

Method of recognizing the high-speed railway noise barriers based on the distance image

2016 ◽  
Author(s):  
Le Ma ◽  
Shuangyun Shao ◽  
Qibo Feng ◽  
Bingqian Liu ◽  
Chol Ryong Kim
Keyword(s):  
High Speed ◽  
Noise Barriers ◽  
High Speed Railway ◽  
Railway Noise

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.

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