Investigation of the Propulsion Properties of an M-shaped Bending-surface Feather Fan under Different Wind Velocities

[摘要] Flight speed is an important factor that affects flapping-wing propulsion. This study conducted tests on a self-designed rotatory force-measuring platform and simulated different inflow conditions by changing the rotatory angular velocity. An M-shaped bending-surface feather fan was selected as the test model, and the rotatory platform was rotated at different speeds under different propulsion so that the flapping-wing propulsion at different inflow velocities could be measured. Moreover, the wind speed corresponding to the maximum propulsion was determined. The results show that as wind velocity increases within a certain range, the propulsion first increases, then decreases, and finally increases until reaching a maximum wind velocity value of 7.3 m/s.

[发布机构] Lilienthal Laboratory, Beijing Implant Aircraft Co. Ltd., China^1

[效力级别] 原子能学

[关键词] Different speed;Flapping wing;Flight speed;Inflow conditions;Inflow velocity;Test Modeling;Wind speed;Wind velocities