Title :
Optimum delayed feedback vibration absorber for MDOF mechanical structures
Author :
Jalili, Nader ; Olgac, Nejat
Author_Institution :
Dept. of Mech. Eng., Connecticut Univ., Storrs, CT, USA
Abstract :
An optimal active vibration absorber is designed for wide band excitations using a delayed partial state feedback. The final structure, named delayed feedback vibration absorber (DFVA), offers the minimum M peak for the primary system involved within a given frequency band. A min-max problem is solved. It is shown that, the vibration suppression characteristics can be improved better than 20% over the optimum passive absorber for a typical case. Stability discussions associated with delayed systems are also presented and included in the optimization process
Keywords :
control system synthesis; damping; delays; minimax techniques; optimal control; stability; state feedback; vibration isolation; DFVA; delayed partial state feedback; min-max problem; multi-DOF mechanical structures; optimal active vibration absorber; optimum delayed feedback vibration absorber; stability discussions; vibration suppression characteristics; wide band excitations; Acceleration; Delay systems; Feedback control; Frequency response; Mechanical engineering; Resonance; Stability; State feedback; Vibrations; Wideband;
Conference_Titel :
Decision and Control, 1998. Proceedings of the 37th IEEE Conference on
Conference_Location :
Tampa, FL
Print_ISBN :
0-7803-4394-8
DOI :
10.1109/CDC.1998.762082
