Comparison of vibration control schemes for a smart antenna

Author

Dosch, Jeffrey J. ; Leo, Donald J. ; Inman, Daniel J.

Author_Institution

Dept. of Mech. & Aerosp. Eng., State Univ. of New York, Buffalo, NY, USA

fYear

1992

fDate

1992

Firstpage

1815

Abstract

Two active vibration control schemes, positive position feedback (PPF) and active vibration absorber (AVA), were experimentally implemented with an eight ribbed smart antenna. Mounted on five of the eight ribs are collocated piezoceramic sensor/actuator pairs creating a multi-input multi-output (MIMO) control structure. A single-input single-output (SISO) pole zero model of one of the antenna ribs is identified. The design parameters for the AVA and PPF controllers are numerically optimized from simulations of the SISO model. The design parameters found in the SISO simulations are then implemented in the MIMO structure. Theoretical stability bounds for collocated and non-collocated control for both the PPF and AVA control schemes are also presented

Keywords

adaptive control; aerospace control; antennas; control system synthesis; intelligent actuators; intelligent sensors; intelligent structures; piezoelectric actuators; piezoelectric transducers; stability; telecommunications control; vibration control; MIMO structure; SISO model; active vibration absorber; active vibration control schemes; antenna ribs; collocated piezoceramic sensor/actuator pairs; design parameters; large space structures; pole zero model; positive position feedback; smart antenna; stability bounds; Actuators; Antenna feeds; Design optimization; Feedback; Intelligent sensors; MIMO; Piezoelectric materials; Poles and zeros; Ribs; Vibration control;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1992., Proceedings of the 31st IEEE Conference on

Conference_Location

Tucson, AZ

Print_ISBN

0-7803-0872-7

Type

conf

DOI

10.1109/CDC.1992.371116

Filename

371116