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Application of SimSound to an analytical example and to real cases of railway rolling noise

Carrarini, Antonio (2009) Application of SimSound to an analytical example and to real cases of railway rolling noise. DLR-Interner Bericht. DLR-IB 515-09-09, 17 S.

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Abstract

The implementation of SimSound as a tool for the acoustic postprocessing of multi-body simulations including flexible bodies has been described in a previous report, Carrarini (2008a). In the present one, the application of SimSound to an analytical example and to two real cases of railway noise is reported: - Plate: A simply supported rectangular plate is excited by a point force. As an exact analytical solution for this problem can be given, this case has been used to check the implementation. - Switch gap: A railway vehicle crosses a switch; the impact due to the wheel rolling over the rail gap in the central part of the switch (the so called frog) causes strong vibrations of the wheelsets and thus impulsive noise. - Rough rail: A railway vehicle runs over rough rails. A similar example was reported in Carrarini (2008b) but in the present work real measured roughness data (courtesy of Prof. Hecht, TU Berlin, Fachgebiet Schienenfahrzeuge) has been used.

Document Type:Monograph (DLR-Interner Bericht)
Title:Application of SimSound to an analytical example and to real cases of railway rolling noise
Authors:
AuthorsInstitution or Email of Authors
Carrarini, Antonioantonio.carrarini@dlr.de
Date:1 April 2009
Number of Pages:17
Keywords:SimSound, Noise, Structure Borne Sound, Railway
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Next Generation Train (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics > System Dynamics and Control (former Control Design Engineering)
Deposited By: Antonio Carrarini
Deposited On:08 Oct 2010 09:36
Last Modified:12 Dec 2013 21:01

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