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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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Kurzfassung

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.

Dokumentart:Berichtsreihe (DLR-Interner Bericht)
Titel:Application of SimSound to an analytical example and to real cases of railway rolling noise
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Carrarini, Antonioantonio.carrarini@dlr.de
Datum:1 April 2009
Seitenanzahl:17
Stichwörter:SimSound, Noise, Structure Borne Sound, Railway
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Bodengebundener Verkehr
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V BF - Bodengebundene Fahrzeuge
DLR - Teilgebiet (Projekt, Vorhaben):V - Next Generation Train (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Robotik und Mechatronik > Systemdynamik und Regelungstechnik (war Entwurfsorientierte Regelungstechnik)
Hinterlegt von: Antonio Carrarini
Hinterlegt am:08 Okt 2010 09:36
Letzte Änderung:12 Dez 2013 21:01

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