| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
We have investigated an optimal airfoil of a flapping wing for a micro air vehicle. We have clarified that the airfoils of insects do not exceed the flat plate airfoil in time-averaged aerodynamic characteristics for a flapping cycle, if the airfoil is rigid. We have proposed the morphing flapping wing with a hinge connecting fore- and hindwings, which can obtain an appropriate camber in both the up- and downstrokes by actively controlling the hinge angle. When an optimal hinge rotation is done, the time-averaged lift of the morphing wing is 22.8% larger than the conventional rigid flat plate with the same required aerodynamic power. The morphing flapping wing we have proposed is powerful technology to enhance the performance of a flapping type micro air vehicle.
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