Abstract
This paper deals with an experimental study on the effect of the phase relationship between fore wings and hind wings of tandem flexible flapping wings. A flapping mechanism of tandem flexible wings is developed in this study. And a self-excited driving system using frequency entrainment is applied to this mechanism. This driving system synchronizes the motion of fore wings and hind wings. The propulsion force generated by the tandem flapping wings is measured using a high-sensitive force sensor, and the performance of the propulsion force is clarified experimentally.
