Periodic control of helicopter rotors for attenuation of vibrations in forward flight

Author

Arcara, Paolo ; Bittanti, Sergio ; Lovera, Marco

Author_Institution

Dipt. di Elettronica e Inf., Politecnico di Milano, Italy

Volume

8

Issue

6

fYear

2000

fDate

11/1/2000 12:00:00 AM

Firstpage

883

Lastpage

894

Abstract

The 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

control system synthesis; helicopters; linear systems; optimal control; periodic control; time-varying systems; vibration control; forward flight; helicopter rotors; linear time-periodic system; main rotor; optimal control design methods; periodic control; periodic disturbance rejection; vibrations attenuation; Attenuation; Blades; Control systems; Covariance matrix; Frequency; Helicopters; Optimal control; Power harmonic filters; Riccati equations; Vibration control;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/87.880590

Filename

880590