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The Multiple-input/Single-output Feedforward Control of Lateral Vibration in a High-speed Train Car
Responsible organisation
2002 (English)Conference paper, Published paper (Refereed) Published
Abstract [en]

The problem of low- frequency lateral train-car vibration is an important issue surrounding the design of high-speed trains. Passive solutions such as stiffening the car chassis are impractical because of the weight increase. Semi-passive solutions, such as modifying the structural dynamics of the carboy through non-rigid coupling of heavy underfloor equipment does not come with a weight penalty, but do not sufficiently reduce the vibrations. However, computer simulations based on signals derived from a dynamic computer model of a train car indicates that the incorporation of a feedforward active control system, is likely to introduce a substantial reduction in the lateral vibration level. A simple controller structure is used and it is based on the multiple- input/single-output filtered-x LMS algorithm. Active control results illustrate an attenuation of the lateral train-car vibration by up to 14 dB.

Place, publisher, year, edition, pages
Orlando, 2002.
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-9765Local ID: oai:bth.se:forskinfo954BCEEA775FB9ADC1256C6A005E9C8FOAI: oai:DiVA.org:bth-9765DiVA: diva2:837699
Conference
Ninth International Congress on Sound and Vibration
Available from: 2012-09-18 Created: 2002-11-07 Last updated: 2015-06-30Bibliographically approved

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Johansson, SvenHåkansson, LarsClaesson, Ingvar
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