ANN ARBOR, MI
Princeton University and the Toyota Research Institute of North America (TRINA) have been exploring the intricate mechanics of covert feathers for flight control. Our joint investigation into the placement of covert feathers on wing surfaces has yielded new insights into flight control, applicable to both natural and engineered systems.
Birds can perform agile maneuvers and maintain flight at high angles of attack, thanks in part to the covert feathers on their wings. These feathers deploy on both the upper and lower wing surfaces, contributing to the bird’s aerodynamic capabilities. Recent research by Prof. Wissa at Princeton University and TRINA focused on understanding the placement of these covert feathers, using a feather-inspired flap system to replicate their effect on aerodynamic forces like lift, drag, and pitching moments.
Wind tunnel experiments have shown that the strategic positioning of covert-inspired flaps can significantly enhance aerodynamic control. By examining various configurations, the researchers have identified specific locations on the upper and lower wing surfaces that can maximize the modulation of aerodynamic forces. This dual-sided deployment has proven more effective than single-sided flaps, underscoring the importance of flap interactions for optimal flight performance. The implications of this study are far-reaching, creating a framework for designing advanced flight control systems. By mimicking the natural configurations found in bird wings, engineers can develop innovative control devices for aircraft and other aerial vehicles, enhancing their maneuverability, stability, and efficiency. This research not only deepens our understanding of bird flight but also opens up new possibilities for bio-inspired engineering, inspiring future innovations in the field.
Collaborator website: Bio-inspired | BAM Lab | United States (princeton.edu)
Best Paper Award at the ASME SMASIS conference: Covert-inspired flaps: an experimental study to understand the interactions between upperwing and underwing covert feathers (princeton.edu)
