Aero-elasticity of a wing is the study of airflow around an elastic wing and their interaction. A two-way Fluid Structure Interaction (FSI) method has been advantageous in the study of aero-elastic behavior of lifting surfaces. Preliminary design of an UAV requires detailed understanding of aerodynamic and structural operational boundaries; to arrive at an optimal wing. High aspect ratio wings are being employed in Medium Altitude Long Endurance (MALE) and High-Altitude Long Endurance (HALE) UAVs. High aspect ratio wings are usually designed using composite materials because of their specific stiffness and strength customization ability. To this end, for designing a high aspect ratio wing, which is aero-elastically compliant and performs well at all flight conditions—understanding the aero-elastic behavior is necessary. Preliminary designs as well as detailed design incorporate reduced ordered models, however to evaluate the efficiency of reduced ordered models—a full scale 3D numerical model analysis or wind tunnel tests are required. Here aim is to perform and establish a baseline study of two-way coupled static aero-elastic analysis based on the existing experimental results of a composite flat plate wing and a large/high-aspect ratio wing, which in turn will work as a benchmark for flutter analysis and reduced ordered models to be developed. ANSYS package has been used to demonstrate the methodology to predict the onset of divergence, a static aero-elasticity phenomenon. The numerical simulation results from ANSYS are validated with existing experimental results available in the literature. Numerical simulation is carried out for a composite wing, and then the methodology is extended to high aspect ratio wing. The results obtained using bidirectional-coupled simulation studies are found to be in agreement with the results available in the literature.


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    Title :

    Aero-elastic Analysis of High Aspect Ratio UAV Wing—Based on Two-Way Fluid Structure Interaction


    Additional title:

    Lect.Notes Mechanical Engineering


    Contributors:


    Publication date :

    2021-03-19


    Size :

    22 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English