A mechanical wave is generated as a result of an oscillating body interacting with the well-defined medium and it propagates through that medium transferring energy from one location to another. The ability to generate and control the motion of the mechanical waves through the finite medium opens up the opportunities for creating novel actuation mechanisms. The focus of this study is on understanding the traveling wave generation and propagation by establishing the relationships that illustrate the role of structural and electromechanical parameters. A brass beam with free-free boundary conditions was selected to be the medium through which the wave propagation occurs. Two piezoelectric elements were bonded on the opposite ends of the beam and were used to generate the controlled oscillations. Excitation of the piezoelectrics results in coupled system dynamics that can be translated into generation of the waves with desired characteristics. Theoretical analysis based on the distributed parameter model and experiments were conducted to provide the comprehensive understanding of the wave generation and propagation behavior.
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ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 8–10, 2014
Newport, Rhode Island, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4614-8
PROCEEDINGS PAPER
Travelling Wave Phenomenon Through a Piezoelectric Actuation on a Free-Free Beam
V. V. N. Sriram Malladi,
V. V. N. Sriram Malladi
Virginia Tech, Blacksburg, VA
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Dragan Avirovik,
Dragan Avirovik
Virginia Tech, Blacksburg, VA
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Shashank Priya,
Shashank Priya
Virginia Tech, Blacksburg, VA
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Pablo A. Tarazaga
Pablo A. Tarazaga
Virginia Tech, Blacksburg, VA
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V. V. N. Sriram Malladi
Virginia Tech, Blacksburg, VA
Dragan Avirovik
Virginia Tech, Blacksburg, VA
Shashank Priya
Virginia Tech, Blacksburg, VA
Pablo A. Tarazaga
Virginia Tech, Blacksburg, VA
Paper No:
SMASIS2014-7529, V001T03A017; 8 pages
Published Online:
December 8, 2014
Citation
Malladi, VVNS, Avirovik, D, Priya, S, & Tarazaga, PA. "Travelling Wave Phenomenon Through a Piezoelectric Actuation on a Free-Free Beam." Proceedings of the ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation. Newport, Rhode Island, USA. September 8–10, 2014. V001T03A017. ASME. https://doi.org/10.1115/SMASIS2014-7529
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