| Autor: |
V. V. N. Sriram Malladi, Pablo A. Tarazaga, Josh Spahnie, Bryan S. Joyce, Charles Haltom, Kevin L. Lefeave, Jacob Aber, Lucas Jones, Adam Underwood |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bioinspired Smart Materials and Systems; Energy Harvesting. |
| DOI: |
10.1115/smasis2014-7516 |
| Popis: |
Traveling waves have shown the potential to transport material and are thus investigated as a propulsion mechanism. Through the use of piezoelectric actuators (PZTs), traveling waves were produced in beams with both free-free and fixed-free boundary conditions. It is shown that traveling waves can be generated by exciting two PZTs at a common frequency with a phase difference between the PZT signals. Experimentation showed the signal that creates the best traveling wave occurs at a driving frequency halfway between adjacent bending resonance frequencies and a phase difference of 90° between both PZTs signals. This has produced traveling waves in fixed-free beams and free-free beams in both air and water as well as for an underwater vehicle. These traveling waves generated useful propulsion in both the fixed-free and free-free beams.Copyright © 2014 by ASME |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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