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Modelling the inter...
Modelling the interior sound field of a railway vehicle using statistical energy analysis
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- Forssén, Jens, 1968 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Tober, Stefan, 1978 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Can Corakci, Ata, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Frid, A. (författare)
- Bombardier Transportation
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- Kropp, Wolfgang, 1959 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2012
- 2012
- Engelska.
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Ingår i: Applied Acoustics. - : Elsevier BV. - 0003-682X .- 1872-910X. ; 73:4, s. 307-311
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The sound field in train compartments, treated as a series of connected air cavities, is modelled using statistical energy analysis, SEA. For the case under study, with five cavities in series and the source in the second cavity, a closed-form solution is obtained. An adjusted SEA model is used to predict the rate of spatial decay within a cavity. The SEA model is validated using results from a ray tracing method and from scale model measurements. For the octave bands 500-4000 Hz, good agreement is shown between the results from measurements, the ray tracing and the SEA model, for the two saloons closest to the source cavity (a vestibule). The SEA model was shown to slightly underestimate the rate of spatial decay within a cavity. It is concluded that a reasonable cause is the additional diffusion due to the seating.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- Ray tracing
- Scale model
- Air cavity
- Statistical energy analysis
- Spatial
- decay
- Train compartment
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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