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- 저자 : 윤제원(Jae-Won Yoon) (검색결과 3 건)
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장강석(Ksng-Seok Jang),윤제원(Jae-Won Yoon),김영찬(Young-Chan Kim),김두훈(Doo-Hoon Kim) 한국철도학회 2001 한국철도학회 학술발표대회논문집 Vol.- No.-
Before we have made known the study of shape development of interference device for vehicle noise control. It"s primary object greatly attenuate the noise due to transport vehicle by small products installed on the noise barrier edge. Also, it is able to improve the insertion loss of a noise barrier without increasing the height. The present time, we set up a newly manufactured products on the noise barrier edge and testify to it"s the performance make use of an experiment and evaluation. In this paper the performance of noise barriers with attached newly developed products in terms of shape, absorptive material and split panel, are examined using field test.
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조대승(Dae-Seung Cho),정홍구(Hong-Gu Jeng),조준호(Jun-Ho Cho),장강석(Kang-Seok Jang),윤제원(Jae-Won Yoon) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
Planning and construction of railway for high speed trains up to 400 km/h are recently driven in Korea. High speed train is one of the environment-friendly fastest mass transportation means but its noise generated by rolling traction and aerodynamic mechanism can cause public complaints of residents nearby railways. To cost-effectively prevent the troublesome noise in a railway planning stage the rational railway noise prediction method considering the characteristics of trains as well as railway structures should be required but it is difficult to find an authentic method for Korean high speed trains such as KTX and KTX-II. In this study recent railway noise prediction methods developed by EU countries are introduced and discussed for consulting before setting the framework of our own railway noise prediction model emitted by Korean high speed trains over 250 km/h. Especially the new Schall 03 model (2006) developed by Germany and IMAGINE model (2007) suggested by an EU framework research project are intensively reviewed. In addition research items required for the development of our own model are suggested.
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조대승(Dae-Seung Cho),조준호(Jun-Ho Cho),김진형(Jin-Hyeong Kim),장강석(Kang-Seok Jang),윤제원(Jae-Won Yoon) 한국소음진동공학회 2011 한국소음진동공학회 학술대회논문집 Vol.2011 No.10
Planning and construction of railway for high speed trains up to 400 km/h are recently driven in Korea. High speed train is one of the environment-friendly fastest mass transportation means but its noise generated by rolling, traction and aerodynamic mechanism can cause public complaints of residents nearby railways. To cost-effectively prevent the troublesome noise in a railway planning stage, the rational railway noise prediction method considering the characteristics of trains as well as railway structures should be required but it is difficult to find authentic methods for Korean high speed trains such as KTX and KTX-II. In this study, we propose a framework of our own railway noise prediction model emitted by Korean high speed trains over 250 km/h based on the recent research results carried out in EU countries. The model considers railway sound power level using several point sources distributed in heights as well as tracks, whose detail speed- and frequency-dependent emission characteristics of Korean high speed trains should be determined in near future by measurement or numerical analysis. The attenuation during propagation outdoors is calculated by the well-known ISO 9613-2 and auxiliary methods to consider undulated terrain and wind effect.
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