On The Piezoelectric Energy Harvesting Potential from Aeroelastic Vibration of Lifting Structures Exerted by Turbulence and Cruising Condition
Abstract
Research in multifunctional structure has been significantly grown in the past decade. One of the focuses is the structure for energy storage and energy harvesting. Piezoelectric material has been utilized to construct a small scale (W order) power generator device in recent years. In the case of lifting structures, aeroelastic vibration is one of the interesting sources to harvest the energy from the ambient environment, so-called piezoaeroelastic energy harvesting. However, largely, the proposed methodologies in this topic concerned the instability problems, i.e., flutter, galloping, Vortex-Induced Vibration (VIV). To date, in particular, concerning aerial vehicles, there were only few works that have discussed more practical flight conditions, i.e., cruise and gust. In this project, the computational procedure for the design purposes of an aircraft with piezoaeroelastic energy harvesting capability is targeted. The structural subject of analysis to be focused on a medium scale Unmanned Aerial Vehicle (UAV) wing, i.e., span under 10 m. The turbulence loading conditions during cruise flight will be observed. The analytic function of Dryden and von Karman will be used as the measured power spectral density function for atmospheric turbulence. An advanced iterative Finite Element computational procedure will be applied to evaluate the electric potential on the piezoelectric structure exerted by dynamic deformation. In the previous research, this iterative Finite Element has been proven able to evaluate energy harvesting from lifting structures due to discrete 1-cosine gust load. The extension on the analysis of turbulence loading conditions in the proposed project will contribute to the insight of a much more realistic flight condition. Therefore, the outcome of this project will emphasize the potential of the wing s energy harvesting during operational flight conditions. Additionally, as there is a lack of experimental validation on the piezoaeroelastic energy harvesting field of research, vibration and wind tunnel testing are also proposed.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 05, 2025
- Source ID
- FA23862414072
Entities
People
- Nur Azam Bin Abdullah
Organizations
- Air Force Office of Scientific Research
- International Islamic University Malaysia
- United States Air Force