Active optimal control for multi-dim vibration damping device based on parallel mechanism

Author

Wu, Weiguang ; Ma, Lüzhong ; Yang, Qizhi

Author_Institution

Sch. of Mech. Eng., Jiangsu Univ., Zhenjiang, China

fYear

2011

fDate

15-17 July 2011

Firstpage

5531

Lastpage

5534

Abstract

A new three-translation parallel mechanism is designed to solve the problem of three-dimension vibration damping. The parallel mechanism is met the need of three-dimension vibration damping, such as vehicle suspension. Through the establishment of the dynamic state-space equation and optimal control model of the active control system, a LQG controller is designed. The simulation model based on Matlab/Simulink environment was built and simulated by step and random vibration excitation for three directions respectively. The simulation results showed that the active control system with a LQG controller achieved the better performance of three-dimension vibration damping, especially in low frequency domain.

Keywords

linear quadratic Gaussian control; state-space methods; vibration control; LQG controller; Matlab-Simulink environment; active control system; dynamic state-space equation; multidim vibration damping device; optimal control model; random vibration excitation; three translation parallel mechanism; vehicle suspension; Conferences; Damping; Mathematical model; Optimal control; Vehicles; Vibrations; multi-dim vibration damping; optimal control; parallel mechanism; simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988278

Filename

5988278