Design of Advanced Composite Skins for Morphing Wings - Analysis, Manufacturing, and Control
Abstract
The main objectives of this project are (1) to design compliant and multi-dimensional and functional advanced composite skins considering morphing wings’ mechanical/structural, geometrical, and aerodynamic characteristics, (2) to design and implement mesostructure morphing skins using 3D additive manufacturing technology, (3) to establish and validate a rapid design process of skins for various types of morphing, and (4) to implement control parameters to materials for active control of manufactured skins.To achieve the goals, a multiscale inverse design method will be developed that can enable rapid designs of various types of the morphing skin. In the first step, multiple global target performances such as wing shape error will be identified as references and required bulk stiffness distributions will be determined in the optimization process. In the second step, the bulk material properties from the first step will be used as constraints to determine mesostructure topology either from unstructured domain or predefined shapes.Then mesostructures will be manufactured by a 3D printer. Experimental validation for structures only and structure in the system will be conducted by lab tests and FSI simulations. Furthermore, wind tunnel testings for aerodynamic loadings will be performed for precise validation and modification in the entire design process. If the proposed research is successfully completed, new optimized designs of the morphing skins under various flight conditions can be created in a cost-effective way. Further efforts for scalability of the compliant design of the morphing skins will bring substantial cut-down of US Air Force energy bill by increasing aerodynamic efficiency.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 09, 2018
- Source ID
- FA23861714081
Entities
People
- Gunjin Yun
Organizations
- Air Force Office of Scientific Research
- Seoul National University
- United States Air Force