Concepts For Morphing Aerofoil Sections Using Pantographic Structures

Morphing structures have great importance in numerous engineering applications, and have significant potential in the aerospace industry. An aircraft structure has different aerodynamic requirements for different stages of flight, and an optimal aircraft structure would also have different optimal s...

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Bibliographic Details
Published in:WIT Transactions on the Built Environment 2014-01, Vol.136
Main Authors: Saeed, N M, Kwan, A S K
Format: Article
Language:English
Subjects:
Actuators
Aerodynamic properties
Aerodynamics
Aerofoils
Aerospace industry
Aircraft
Aircraft industry
Aircraft structures
Airfoils
Drag
Flaps
Geometry
Lift
Mathematical analysis
Morphing
Optimization
Pantographs
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Summary:Morphing structures have great importance in numerous engineering applications, and have significant potential in the aerospace industry. An aircraft structure has different aerodynamic requirements for different stages of flight, and an optimal aircraft structure would also have different optimal shapes and geometry for these different requirements. A morphing structure has capability to provide for variable geometry. In this research, suitable morphing aerofoil structures have been found, as alternatives to the traditional aerofoil, and they provide larger lift (CL) and smaller drag (CD) coefficients. The morphing aerofoil structures proposed are achieved via series of interconnected, curved, single-actuator pantographs, with standard aerofoil NACA2415 chosen as the base-shape for comparative work. Two configurations have been studied in depth. This paper will cover the details of the geometry of the morphing structures and the aerodynamic properties of the different shapes during the morphing process.
ISSN:1746-4498
1743-3509
DOI:10.2495/MARAS140231