Active Vibration Control on a Light High Speed Train: Preliminary Results

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Per Sjösten, Magnus Hermodsson, Leping Feng, Henrik Samuelsson, Stella Einarsson-Papadio, Thomas L Lagö
Title: Active Vibration Control on a Light High Speed Train: Preliminary Results
Conference name: International Symposium Active Acoustic & Vibration - Active 97
Year: 1997
City: Budapest, Hungary
Organization: Blekinge Institute of Technology
Department: Dept. of Signal Processing (Institutionen för signalbehandling)
Dept. of Signal Processing S-372 25 Ronneby
+46 455 38 50 00
Language: English
Abstract: Active vibration control has been utilized in an attempt to reduce vibration on a high-speed
traincar. The purpose of this experiment was to investigate the possibilities of preventing
vibrationsfrom the bogie to excite the car and to produce tonal noise components within the car.
Theprimary source of excitation was the variation in rail stiffness due to the sleepers.This work
addresses a problem that is likely to occur in future trains, where the structures arelighter and
have less internal damping. Periodic excitation from the sleepers is expected tointroduce tonal
components that are clearly audible within the car. Decreasing the weight of thestructure will be
necessary in future very high-speed trains to save energy and reduce rail wear.The bogie that was
used in the experiments described here weights approximately 40% less thanthe standard bogie
used in the ABB X2000 today.
Subject: Signal Processing\Active Noise and Vibration Control