Flight envelope expansion based on active mitigation of flutter via a V-stack piezoelectric actuator

Ursu, Ioan; Guta, Dragos Daniel Ion; Enciu, Daniela; Tecuceanu, George; Radu, A.

doi:10.1088/1742-6596/1106/1/012033

Cited by 2 publications

(4 citation statements)

References 6 publications

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“…The tests performed in WT established that the flutter speed was 41 m/s and the flutter frequency was 5.8 Hz [41]. Thus, the flutter speed of 41 m/s and the flutter frequency of 5.8 Hz were experimentally measured, as the effect can be seen in Figure 1 (see also work [41]). These values were not intended as actual values for a specific aircraft.…”

Section: Smart Wing System With Active Controlmentioning

confidence: 86%

“…One design requirement was to ensure the occurrence of flutter for the uncontrolled system in INCAS subsonic WT [32]. The tests performed in WT established that the flutter speed was 41 m/s and the flutter frequency was 5.8 Hz [41]. Thus, the flutter speed of 41 m/s and the flutter frequency of 5.8 Hz were experimentally measured, as the effect can be seen in Figure 1 (see also work [41]).…”

Section: Smart Wing System With Active Controlmentioning

confidence: 99%

“…Also, the paper is based on results obtained over time in projects and comes as a development of those results [40][41][42].…”

mentioning

confidence: 99%

“…In general, the design of aviation wind tunnels was based on the outdated idea that aircraft usually fly at altitudes of kilometers where the degree of turbulence is very low, which is true only if the phenomenon of CAT is ignored. • Also, the paper is based on results obtained over time in projects and comes as a development of those results [40][41][42].…”

mentioning

confidence: 99%

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A Smart Wing Model: From Design to Testing in a Wind Tunnel with a Turbulence Generator

Ursu,

Tecuceanu,

Enciu

et al. 2024

Aerospace

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The paper concerns the technology of the design, realization, and testing of a flexible smart wing in a wind tunnel equipped with a turbulence generator. The system of smart wing, described in detail, consists mainly of: a physical model of the wing with an aileron; an electric servomotor of broadband with a connecting rod-crank mechanism for converting the rectilinear motion of the servoactuator into the aileron deflection; two transducers: an encoder for measuring the deflection of the control aileron and an accelerometer mounted on the wing to measure its bending and torsional vibrations; a procedure for determining the mathematical model of the wing by experimental identification; a turbulence generator in the wind tunnel; implemented ℋ∞ and LQG algorithms for active control of vibrations. The attenuation experimentally obtained for the aeroelastic vibrations of the wing, but also for those accentuated by the turbulence, reaches values of up to 50%.

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Section: Smart Wing System With Active Controlmentioning

confidence: 86%

Section: Smart Wing System With Active Controlmentioning

confidence: 99%

“…Also, the paper is based on results obtained over time in projects and comes as a development of those results [40][41][42].…”

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

A Smart Wing Model: From Design to Testing in a Wind Tunnel with a Turbulence Generator

Ursu,

Tecuceanu,

Enciu

et al. 2024

Aerospace

Self Cite

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Active robust control for wing vibrations attenuation

et al. 2022

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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.

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Flight envelope expansion based on active mitigation of flutter via a V-stack piezoelectric actuator

Cited by 2 publications

References 6 publications

A Smart Wing Model: From Design to Testing in a Wind Tunnel with a Turbulence Generator

A Smart Wing Model: From Design to Testing in a Wind Tunnel with a Turbulence Generator

Active robust control for wing vibrations attenuation

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