Aerodynamic Noise Reduction in Pantographs by Shape-smoothing of the Panhead and Its Support and by Use of Porous Material in Surface Coverings
To reduce the aerodynamic noise generated by a pantograph, which is one of the dominant noise sources in high speed trains, the authors have proposed a set of noise reduction techniques, namely, shape-optimization of the panhead, relaxation of aerodynamic interference between the panhead and the articulated frame, and the use of porous material for surface covering. To evaluate the total noise reduction effect of these techniques, they were applied to a prototype pantograph which was tested in a wind tunnel. Test results showed that the prototype pantograph lowered the noise level from the current low-noise pantograph by about 4dB. Furthermore, they also confirmed that the prototype pantograph had sufficient aerodynamic stability against change of attack angle.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00339008
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Authors:
- Ikeda, Mitsuru
- Mitsumoji, Takeshi
- Sueki, Takeshi
- Takaishi, Takehisa
- Publication Date: 2010-11
Language
- English
Media Info
- Media Type: Print
- Features: Figures; Photos; References;
- Pagination: pp 220-226
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Serial:
- Quarterly Report of RTRI
- Volume: 51
- Issue Number: 4
- Publisher: Railway Technical Research Institute
- ISSN: 0033-9008
- EISSN: 1880-1765
- Serial URL: https://www.jstage.jst.go.jp/browse/rtriqr/-char/en
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Aerodynamics; Environmental impacts; High speed rail; Noise control; Noise sources; Pantographs
- Subject Areas: Environment; Railroads; I15: Environment;
Filing Info
- Accession Number: 01329239
- Record Type: Publication
- Files: TRIS
- Created Date: Feb 16 2011 1:41PM