THE MULTIPLE-INPUT/SINGLE-OUTPUT FEEDFORWARD CONTROL OF LATERAL VIBRATION IN A HIGH-SPEED TRAIN CAR
Blekinge Institute of Technology, Department of Telecommunications and Signal Processing2002 (English)Conference paper (Refereed) Published
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, Florida, USA: The International Institute of Acoustics and Vibration (IIAV) , 2002.
active vibration control, feedforward control, multiple-reference system, lms algorithm, train
IdentifiersURN: urn:nbn:se:bth-10044Local ID: oai:bth.se:forskinfo4F96B29876A84370C1256C79002D15D0OAI: oai:DiVA.org:bth-10044DiVA: diva2:838054