Experimental Validation of Improving Aircraft Rolling Power Using Piezoelectric Actuators

Li, Min; Chen, Weimin; De, Guan; Li, Wei

doi:10.1016/s1000-9361(11)60314-2

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…For example, the lift improvement or pitch control of aircraft can be realized with deformations of both wings in same direction (Bilgen et al, 2007b). Besides, rolling moment can be generated to achieve roll maneuver with deformation of the wings at opposite direction (Bilgen et al, 2007b; Khot et al, 1997; Li et al, 2005). The aerodynamic lift can be calculated using…”

Section: Mathematical Modelmentioning

confidence: 99%

“…Therefore, vibration problems of the wing and fluctuations in aerodynamic forces will be caused, especially for short time interval. The vibrations of the morphing wings may reduce the control effectiveness and flight performance (Bilgen et al, 2007a; Li et al, 2005) and even cause strength and fatigue problems of structures. Moreover, the fluctuations in aerodynamic forces are in direct conflict with flight stability.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic shape control of piezocomposite-actuated morphing wings with vibration suppression

Wang

Zhou

Xun

et al. 2017

Journal of Intelligent Material Systems and Structures

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Aerodynamic properties and aeroelastic responses of morphing wings can be improved via active shape control using piezoelectric actuators. In this article, a type of piezocomposite material called macro-fiber composite is used for actuation to achieve shape control of the morphing wing. This study focuses on the vibration suppression of the wing during dynamic morphing motion in open-loop architecture. The aeroelastic model is established using finite element method and Theodorsen unsteady aerodynamic loads. Because the arbitrary selection of any admissible control voltage profiles will cause vibrations of the wing structure and fluctuations in aerodynamic lift, a dynamic shape control approach is presented to optimize the voltage profiles for the actuators. A proof-of-concept simulation is presented for a scaled high-aspect-ratio wing. The results show that continuous, smooth morphing motion with gentle aeroelastic responses can be realized by applying the optimum voltage profiles. The dynamic shape control performance of the morphing wing can be improved compared with step and ramp voltage profiles.

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Section: Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic shape control of piezocomposite-actuated morphing wings with vibration suppression

Wang

Zhou

Xun

et al. 2017

Journal of Intelligent Material Systems and Structures

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“…19,[22][23][24][25][26] Leech (Shuizhi), also a kind of TCM rstly recorded in "Shen Nong's Herbal Classic", is used commonly for activating blood circulation to dissipate blood stasis. 27,28 It mainly contains protein, hirudin and various trace elements and amino acids, 29,30 and has been extensively studied for their anticoagulant compounds which maintain the blood in a uid state during the uptake and in their guts. Reports have shown that Leech can change the renal hemodynamics, increase renal blood ow and glomerular ltration rate, so as to achieve the purpose of recovery of renal function, and the treatment of DN.…”

Section: Introductionmentioning

confidence: 99%

Combined systems pharmacology and fecal metabonomics to study the biomarkers and therapeutic mechanism of type 2 diabetic nephropathy treated with Astragalus and Leech

et al. 2018

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“…Based on the previous work using distributed isotropic piezoelectric actuators [7,8] to improve wing aerodynamic characteristics, the authors analyzed anisotropic effects by properly spacing thin piezoelectric strips and showed their influence on the wing aerodynamic characteristics.…”

mentioning

confidence: 99%

Influence of anisotropic piezoelectric actuators on wing aerodynamic forces

et al. 2008

Sci. China Ser. E-Technol. Sci.

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Changing the shape of an airfoil to enhance overall aircraft performance has always been a goal of aircraft designers. Using smart material to reshape the wing can improve aerodynamic performance. The influence of anisotropic effects of piezoelectric actuators on the aerodynamic characteristics of a simplified HALE wing model was investigated. Test verification was conducted.piezoelectric actuator, aerodynamic performance, anisotropicDuring the past decade, many researchers have also started to look at adaptive material actuator systems for performance-enhancing shape control. Smart material based actuation systems are attractive because of their characteristics of high-energy densities and because shaping accomplished by smart material can be smooth and without flow disturbing. Using piezoelectric (PZT) patches to reshape the wing can improve aerodynamic performance such as divergence [1] , flutter [2] and rolling maneuver [3,4] . Studies have shown that a network of sensors and actuators could be used to control the structure and improve the flight performance of air vehicles. NASA and the Defense Advanced Research Projects Agency in the US have adopted the term of "morphing aircraft" to describe the application of adaptive structures, among other technologies, for this purpose.Some reports [5,6] about the roll control of aircraft by piezoelectric fiber composites were published recently. Based on the previous work using distributed isotropic piezoelectric actuators [7,8] to improve wing aerodynamic characteristics, the authors analyzed anisotropic effects by properly spacing thin piezoelectric strips and showed their influence on the wing aerodynamic characteristics.

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Experimental Validation of Improving Aircraft Rolling Power Using Piezoelectric Actuators

Cited by 8 publications

References 11 publications

Dynamic shape control of piezocomposite-actuated morphing wings with vibration suppression

Dynamic shape control of piezocomposite-actuated morphing wings with vibration suppression

Combined systems pharmacology and fecal metabonomics to study the biomarkers and therapeutic mechanism of type 2 diabetic nephropathy treated with Astragalus and Leech

Influence of anisotropic piezoelectric actuators on wing aerodynamic forces

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