Simulation Of Acoustical Properties Of Rail Cars
Price
Free (open access)
Transaction
Volume
37
Pages
11
Published
1998
Size
723 kb
Paper DOI
10.2495/CR980391
Copyright
WIT Press
Author(s)
Ulrik Danneskiold-Samsoe
Abstract
Today railway companies are preparing very detailed specifications for the noise level and acoustical performance of the passenger rooms. In order to comply with the specifications, a noise level needs to be predicted at the design stage for each type of room of the car. The paper describes the principles used for this prediction, where the noise contribution from every source and the sound radiated from each carbody component can be intentified by means of the program TRANNOISE. Furthermore, the consequences of making design modifications of doors, seats, partitions, gangways and ceilings can be simulated as well. 1. Introduction Acoustical specifications for rail vehicles contain in general only a maximum noise level corresponding to different operating conditions. A supplementary specification on reverberation time is also s
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