Abstract
Recently, micro air vehicle (MAV) is carried out to development to rescue and so on. Now helicopter type MAV is main stream. However, aircraft of current fly difficult to steady control and efficiency flight for influence size effect. Therefore, we develop MAV with biomimetics that is applying Engineered; reproduce artificially structure and function of the creature existent in natural world. Creature has high flight performance despite of small wing is existent in natural world. That is dragonfly. Dragonfly′s flight has high flight performances. Because we carried out to investigate flight characteristic of dragonfly to development of micro air vehicle (MAV) model of dragonfly. We carried out to investigate micro structure on wings of dragonfly, because we think that micro structure affect flight characteristic of dragonfly. These Wings have microstructure of spikes and comb shape on surface and reading edge. We fabricated artificial wings with micro spikes, with comb shape and without. As a result artificial wing with micro spike generated more smoothly flow and more vortex than without micro structure. Artificial wing with comb shape generated more smoothly flow and large vortex than without micro structure. Therefore artificial wings with micro structures have effect of lower drag force and upper lift force.
