Novel Design of Flapping Mechanism and Wings for Flapping-Wing MAV

• Main Authors: Sheng-Cih Liao, 廖勝次
• Other Authors: Chi-Hsiang Pan
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/53000659546096083987

碩士 === 國立勤益科技大學 === 機械工程系 === 101 === This study aims at the development of a novel design of flapping mechanism and wings for flapping-wing micro air vehicles (MAVs). The flapping mechanism in the study is composed of a decelerated motor, an eccentric cam with shafts, and wings. The cam linkage, driven by the decelerated motor, activates the flapping of wings. The linkage makes the same flapped phases of two wings, which can avoid the pitches toward left or right when the MAV flies. The design of the wings is to punch holes in the wings to form one-way air flow, which can decrease the downward drag force when flapping upward and improve the lifting efficiency. This study uses working model® software to make a motion simulation analysis of flapping mechanism, from which the size of the linkage is drawn and the linkage is produced by means of rapid prototyping machines. The wings in the study are ready-made products, part of the wing skin is covered by PE films, and the frames of wings are made of 0.8mm carbon fiber rods. The airframe, micro motor, radio control module and lithium battery are made by ready-made component parts or materials on the market. The MAV of the study makes the length 25 cm, the wingspan 20 cm, and a gross weight 11 g. From the test results, it is found that the MAV has flying ability; however, the torsion of the micro motor is not high enough to lift the MAV from the ground. If the micro motor can be equipped with sufficient power, the dream that the MAV can fly can be carried out.