A quasi online tuning structure for optimum delayed feedback vibration absorber

Author

Jalili, Nader ; Olgac, Nejat

Author_Institution

Dept. of Mech. Eng., Northern Illinois Univ., DeKalb, IL, USA

Volume

3

fYear

1999

fDate

1999

Firstpage

1550

Abstract

An automatic tuning structure is presented for an active vibration suppression methodology, delayed feedback vibration absorber (DFVA). The DFVA, is an improved version of the delayed resonator (DR) vibration absorber. Optimum DFVA offers minimum peak frequency response within a given wide band excitation frequency range. The work introduces a scheme for the tuning of the DFVA against parametric uncertainties in the system. This is achieved through a nested identification and control optimization procedure. Feasibility of the proposed methodology is demonstrated through simulations. Results show that using only three iterations of a nested identification/optimization, the frequency response properties are improved better than 25%

Keywords

feedback; frequency response; optimisation; parameter estimation; stability; tuning; vibration control; active vibration suppression methodology; automatic tuning structure; delayed resonator vibration absorber; minimum peak frequency response; nested identification/optimization; optimum delayed feedback vibration absorber; parametric uncertainties; quasi online tuning structure; wide band excitation frequency range; Acceleration; Control systems; Delay effects; Feedback; Frequency response; Mechanical engineering; Optimal control; Tuning; Vibrations; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1999. Proceedings of the 1999

Conference_Location

San Diego, CA

ISSN

0743-1619

Print_ISBN

0-7803-4990-3

Type

conf

DOI

10.1109/ACC.1999.786085

Filename

786085