Reduction of torsional vibration in rail vehicle wheel sets

US7625030B2 · kind B2 · utility

Assignee

• Bombardier Transportation GmbH · DE

Inventors

• Guido Bieker · Kirchhundem, DE
• Heinz-Dieter Dörner · Nistertal, DE

Key dates

• Filing date: Jul 16, 2003
• Grant date: Dec 1, 2009
• Expiry date: Aug 12, 2025

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2065/1392
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In order to reduce torsional vibrations and wheel slip in a wheel set for a rail vehicle the wheel set comprising a pair of wheels connected by an axle is provided with a vibration absorbing device comprising a mass, resiliently mounted on the wheel set and adapted to oscillate at the resonant frequency of torsional vibrations of the wheel/axle system. A method of preventing or reducing torsional vibrations in a wheel set of a rail vehicle is also disclosed, the method comprising determining the resonant frequency of torsional vibrations of the wheel/axle system and resiliently mounting a vibration absorbing device in the form of a mass, on the wheel set, the mass and its resilient mounting being selected to oscillate at or near that resonant frequency.