5 papers · 1 filter
Vibrissa inspired geometries enhance sensitivity of wake-induced vibrations
Eva Erickson, Eric E. Handy-Cardenas, Joel W. Newbolt +2
We report on experiments designed to characterize the vortex-induced vibration (VIV) and wake-induced vibration (WIV) experienced by bluff bodies immersed in both steady and unstea…
Aerodynamic Forces on a Wing Surfing in a Two-dimensional Vortex Wake
Siyang Hao, Kenneth Breuer
Inspired by the wake-surfing nature of animals, this study aims to understand the aerodynamic force variation on a wing surfing in an unsteady 2-D wake. Wind tunnel experiments wer…
Coupled poro-elastic behavior of hyper-elastic membranes
Alexander Gehrke, Zoe King, Kenneth S. Breuer
This study investigates the coupled deformation and flow behavior of thin, hyper-elastic, porous membranes subjected to pressure loading. Using bulge test experiments, optical defo…
Upstroke wing clapping in bats and bat-inspired robots improves both lift generation and power economy
Xiaozhou Fan, Alberto Bortoni, Siyang Hao +2
Wing articulation is critical for efficient flight of bird- and bat-sized animals. Inspired by the flight of , the lesser short-nosed fruit bat, we…
Wing twist and folding work in synergy to propel flapping wing animals and robots
Xiaozhou Fan, Alexander Gehrke, Kenneth Breuer
We designed and built a three degrees-of-freedom (DOF) flapping wing robot, Flapperoo, to study the aerodynamic benefits of wing folding and twisting. Forces and moments of this ph…