Title :
Vibration Control of Vehicle-bridge Dynamic Interactive System
Author :
Wei, Wu ; Lin, Liu
Author_Institution :
Beijing Jiaotong Univ., Beijing
Abstract :
The vehicle-bridge system is simplified as a moving oscillator traversing a 1D elastic distributed parameter continuum. The control device is placed in parallel with spring and dashpot elements that comprise the suspending part of the vehicle. Three different control schemes are investigated, namely active control, semi-active control using ideal controllable damper and semi-active control using MR damper. The control objective is to suppress both the acceleration of vehicle and the deflection of bridge. The clipped optimal controller tracing the active optimal control law is selected for the semi-active cases. For the MR damper, an experimentally verified dynamic model is adopted, and the model can inversely predict the command voltage applied on the damper for control purpose. Numerical results indicate that the control efficiency is highly dependant on the initial condition of the vehicle, and the two semi-active dampers can well approach the performance of active control.
Keywords :
bridges (structures); optimal control; road vehicles; springs (mechanical); suspensions (mechanical components); vehicle dynamics; vibration control; MR damper; active control; controllable damper; dashpot element; elastic distributed parameter continuum; moving oscillator; optimal control; spring; vehicle acceleration; vehicle suspension; vehicle-bridge dynamic interactive system; vibration control; Damping; Interactive systems; Optimal control; Oscillators; Predictive models; Shock absorbers; Springs; Vehicle dynamics; Vehicles; Vibration control; Active Control; MR Damper; Semi-Active Control; Variable Damper; Vehicle-Bridge Interaction;
Conference_Titel :
Control Conference, 2007. CCC 2007. Chinese
Conference_Location :
Hunan
Print_ISBN :
978-7-81124-055-9
Electronic_ISBN :
978-7-900719-22-5
DOI :
10.1109/CHICC.2006.4346946