J4 ›› 2010, Vol. 7 ›› Issue (2): 134-141.doi: 10.1016/S1672-6529(09)60185-2
Improvement of Artificial Foldable Wing Models by Mimicking the Unfolding/Folding Mechanism of a Beetle Hind Wing
Azhar Muhammad1,2, Quoc Viet Nguyen1,2, Hoon Cheol Park1,2,4, Do Y. Hwang4,
Doyoung Byun2,3,4, Nam Seo Goo1,2,4
- 1. Department of Advanced Technology Fusion, Konkuk University, Seoul 143-701, Korea
2. National Research Laboratory for Biomimetics and Microsystems, Konkuk University, Seoul 143-701, Korea
3. Departmenet of Aerospace Engineering, Konkuk University, Seoul 143-701, Korea
4. Artificial Muscle Research Center, Konkuk University, Seoul 143-701, Korea
Improvement of Artificial Foldable Wing Models by Mimicking the Unfolding/Folding Mechanism of a Beetle Hind Wing
Azhar Muhammad1,2, Quoc Viet Nguyen1,2, Hoon Cheol Park1,2,4, Do Y. Hwang4,
Doyoung Byun2,3,4, Nam Seo Goo1,2,4
- 1. Department of Advanced Technology Fusion, Konkuk University, Seoul 143-701, Korea
2. National Research Laboratory for Biomimetics and Microsystems, Konkuk University, Seoul 143-701, Korea
3. Departmenet of Aerospace Engineering, Konkuk University, Seoul 143-701, Korea
4. Artificial Muscle Research Center, Konkuk University, Seoul 143-701, Korea
摘要：
In an attempt to realize a flapping wing micro-air vehicle with morphing wings, we report on improvements to our previous foldable artificial hind wing. Multiple hinges, which were implemented to mimic the bending zone of a beetle hind wing, were made of small composite hinge plates and tiny aluminum rivets. The buck-tails of rivets were flared after the hinge plates were assembled with the rivets so that the folding/unfolding motions could be completed in less time, and the straight shape of the artificial hind wing could be maintained after fabrication. Folding and unfolding actions were triggered by electrically-activated Shape Memory Alloy (SMA) wires. For wing folding, the actuation characteristics of the SMA wire actuator were modified through heat treatment. Through a series of flapping tests, we confirmed that the artificial wings did not fold back and arbitrarily fluctuate during the flapping motion.