Journal
JOURNAL OF AIRCRAFT
Volume 46, Issue 6, Pages 1866-1874Publisher
AMER INST AERONAUTICS ASTRONAUTICS
DOI: 10.2514/1.38862
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Funding
- National Science Council of Taiwan Government [NSC 96-2221-E-032-013/014, 98-2221-E-032-025-MY3]
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Electrical-discharge wire cutting is it promising technique that provides flexibility and lightness for a flapping micro aerial vehicle. Electrical-discharge wire cutting is used to fabricate the high-aspect-ratio structure of the four-bar linkage gear transmission module made or aluminum-alloy 7075. Aluminum-alloy 7075 has excellent specific strength (yield strength/density) good for durability of the transmission module in a micro aerial vehicle's tuff operation. A new flapping micro aerial vehicle of 21.6 cm wing span consequently has a minimum body mass of 5.9 g after installing the transmission module and a flexible wing frame made or carbon fibers and polyethylene terephthalate film. This micro aerial vehicle call endure it flight time of 6 min 7 s with file wingbeat frequency of 10-20 Hz. The lift and thrust coefficients of lite micro aerial vehicle have been investigated through wind-tunnel testing. The proposed flapping micro aerial vehicle also exhibits the improved characteristic in the scaling law with respect to wingbeat frequency versus body mass.
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