Morphing Wing Micro-Air-Vehicles via Macro-Fiber-Composite Actuators

2007 ◽  
Author(s):  
Onur Bilgen ◽  
Kevin Kochersberger ◽  
Edward Diggs ◽  
Andrew Kurdila ◽  
Daniel Inman
Keyword(s):  
Fiber Composite ◽  
Micro Air Vehicles ◽  
Morphing Wing ◽  
Macro Fiber Composite ◽  
Air Vehicles

Smart materials applied in a micro remotely piloted aircraft system with morphing wing

2018 ◽  
Vol 29 (16) ◽  
pp. 3317-3332 ◽  
Author(s):  
Miguel A Barcala-Montejano ◽  
Ángel A Rodríguez-Sevillano ◽  
Rafael Bardera-Mora ◽  
Jaime García-Ramírez ◽  
Joaquín de Nova-Trigueros ◽  
...  
Keyword(s):  
Smart Materials ◽  
Fiber Composite ◽  
Experimental Results ◽  
Morphing Wing ◽  
Computational Calculations ◽  
Remotely Piloted Aircraft ◽  
Adaptive Wing ◽  
Wing Geometry ◽  
Macro Fiber Composite ◽  
Aircraft System

The article presents a research in the field of morphing wings (adaptive wing geometry) developed over a prototype of micro-unmanned air vehicle based on smart materials technology. This morphing wing will optimize the aircraft performance features. Modifying the curvature of the wing, the micro-unmanned air vehicles will adjust its performance in an optimum mode to cruise flight condition as well as in the phases of takeoff and landing. The installation of mechanical elements for control surfaces in small size aircraft means, on some occasions, an extra complexity. In addition, it takes into account an increase in aircraft weight. In this research, the adaptive wing geometry is based on macro-fiber composites, so that its position on the inner surfaces of the wing allows the appropriate modification of the curvature, adapting them to the flight profile. This research will present the conceptual design of the vehicle, computational calculations, experimental results of the wind tunnel testing, validations using non-intrusive techniques (particle image velocimetry) and a theoretical–experimental analysis of the macro-fiber composite effects over the wing. An Arduino board will perform the control parameters of the macro-fiber composite deformation. With these analytical, computational, and experimental results, the most relevant conclusions are presented.

Experimental study of axial-compressed macro-fiber composite bimorph with multi-layer parallel actuators for large deformation actuation

2020 ◽  
Vol 31 (8) ◽  
pp. 1101-1110 ◽  
Author(s):  
Kai-ming Hu ◽  
Hua Li ◽  
Li-Hua Wen
Keyword(s):  
Fiber Composite ◽  
Single Layer ◽  
Micro Air Vehicles ◽  
Piezoelectric Ceramics ◽  
Large Displacement ◽  
Piezoelectric Bimorph ◽  
Parallel Scheme ◽  
Promising Application ◽  
Macro Fiber Composite ◽  
Piezoelectric Bimorphs

Piezoelectric bimorphs have a promising application in morphing micro air vehicles; however, increasing the actuation displacement is a difficult point. Axial compression can be used to increase the deformation of the piezoelectric bimorph. Compared with piezoelectric ceramics, macro fiber composites offer higher flexibility. In this article, a large displacement actuator of axial-compressed macro fiber composite bimorph is proposed. A multi-layer parallel scheme of macro fiber composite bimorphs is presented to increase the output torque of piezoelectric bimorph within a limited space. The actuation performance of the axial-compressed macro fiber composite bimorph and its multi-layer parallel scheme are verified through quasi-static experiment and displacement tracking control test. The experimental results show that the end-free rotations of both the axial-compressed macro fiber composite bimorph and its multi-layer scheme achieve ±8.1°, which is 60% higher than that of a piezoelectric ceramics bimorph with the same length. The blocking torque of the single-layer macro fiber composite bimorph is 0.028 Nm. The proposed parallel bimorphs method can magnify output torques. In addition, the axial-compressed macro fiber composite bimorph can accurately track any displacement signals in the range of its actuation. It is a continuous and controllable piezoelectric bimorph with large displacement.

Use of MEMS For Micro Air Vehicles

2000 ◽  
Author(s):  
Bruce Carroll ◽  
Norman Fitz-Coy ◽  
Wel Shyy ◽  
Toshikazu Nishida
Keyword(s):  
Micro Air Vehicles ◽  
Air Vehicles
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