Active control of vibrations in helicopters by periodic optimal control

Author

Arcara, Paolo ; Bittanti, Sergio ; Lovera, Marco

Author_Institution

Dipt. di Elettronica, Politecnico di Milano, Italy

fYear

1997

fDate

5-7 Oct. 1997

Firstpage

730

Lastpage

735

Abstract

This paper is devoted to the design of a control system for the attenuation of vibrations in the main rotor of a helicopter in forward flight. The problem can be formulated as the one of rejecting a periodic disturbance of known frequency acting at the output of a linear time-periodic system. A solution inspired to optimal control design methods is proposed. A major preliminary issue is the estimation of the characteristics of the disturbance, for which two methods are worked out. The performance of the obtained control system is assessed by means of several simulation trials.

Keywords

aircraft control; control system synthesis; helicopters; optimal control; periodic control; vibration control; active vibration control; control system design; forward flight; helicopters; linear time-periodic system; main rotor; optimal control design methods; periodic disturbance rejection; periodic optimal control; vibration attenuation; Aircraft; Attenuation; Blades; Control system synthesis; Design methodology; Frequency; Helicopters; Optimal control; Vibration control; Vibration measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 1997., Proceedings of the 1997 IEEE International Conference on

Conference_Location

Hartford, CT, USA

Print_ISBN

0-7803-3876-6

Type

conf

DOI

10.1109/CCA.1997.627746

Filename

627746