Active robust control for wing vibrations attenuation

Author:

URSU Ioan1,TOADER Adrian2,ENCIU Daniela3,TECUCEANU George4

Affiliation:

1. INCAS – National Institute for Aerospace Research “Elie Carafoli”, B-dul Iuliu Maniu 220, Bucharest 061126, Romania, ursu.ioan@incas.ro

2. INCAS – National Institute for Aerospace Research “Elie Carafoli”, B-dul Iuliu Maniu 220, Bucharest 061126, Romania, toader.adrian@incas.ro

3. INCAS – National Institute for Aerospace Research “Elie Carafoli”, B-dul Iuliu Maniu 220, Bucharest 061126, Romania, enciu.daniela@incas.ro

4. Aerospace Consulting, B-dul Iuliu Maniu 220, Bucharest 061126, Romania, tecuceanu.george@incas.ro

Abstract

In this paper a flexible smart wing is presented. The aileron wing with aileron was tested in the INCAS Subsonic Wind Tunnel with the aim of flutter mitigation and vibrations attenuation. The work takes over some of the results of the active anti-flutter control tests performed in the wind tunnel based on the receptance method. More specifically, the mathematical models in the time domain, necessary for the synthesis of control laws, are obtained from experimentally identified transfer functions. The main part of the paper presents the synthesis and analysis of the robustness of the control laws LQG, LQG/LTR, 𝐻𝐻∞ standard and 𝐻𝐻∞ robust from which the optimal solution will be chosen in a later work for the active vibration control tests on this smart wing model.

Publisher

INCAS - National Institute for Aerospace Research Elie Carafoli

Subject

Aerospace Engineering,Control and Systems Engineering

Reference40 articles.

1. [1] I. Ursu, The kinematics of the rigid feedback linkage, the impedance of the hydraulic servomechanism and the flutter occurrence, INCAS Bulletin, vol. 4, no. 3, pp. 63-70, http://dx.doi.org/10.13111/2066-8201.2012.4.3.6, 2012.

2. [2] I. Ursu, M. Vladimirescu, F. Ursu, About aeroservoelasticity criteria for electrohydraulic servomechanisms synthesis, Proceedings of the 20th Congress of the International Council of the Aeronautical Sciences, ICAS 96, vol. 2, pp. 2335-2344, 1996.

3. [3] I. Ursu, F. Ursu, Active and semiactive control (Romanian), Publishing House of the Romanian Academy, Bucharest, 2002.

4. [4] I. Ursu, Study of the stability and compatibility of the hydraulic servomechanisms from the primary flight controls (in Romanian), Internal report IMFCA-INCAS, code 34125, 1974.

5. [5] E. Livne, Aircraft Active Flutter Suppression: State of the Art and Technology Maturation Needs, Journal of Aircraft, vol. 55, no. 1, pp. 410-450, 2018.

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