Institutional Repository
Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/13E73990-2E2A-4689-868C-FEB2B0299ACD | ||
| Year | 2020 | ||
| Type of Item | Master Thesis | ||
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| Bibliographic Citation | Georgios-Stylianos Zymvragakis, "Vibration damping using auxetic microstructures and piezoelectric elements in the frequency domain", Master Thesis, School of Production Engineering and Management, Technical University of Crete, Chania, Greece, 2020 https://doi.org/10.26233/heallink.tuc.84583 | ||
| Appears in Collections |
Vibration mitigation is an important field of study, as unwanted vibrations can cause many engineering problems.One technique for suppressing vibrations is the use of periodic microstructures, which are capable of attenuating vibrations in specific frequency bands. These so-called band gaps are formed by different mechanisms that prevent the propagation of elastic waves.Another technique is the use of branched piezoelectric elements, where in this case the mechanical energy of the vibrations is converted to electrical energy and then consumed at some electrical resistance, resulting in the damping of the vibrations.The present study will study the behavior of these periodic structures and piezoelectric elements, as well as the combination of the two techniques, in a harmoniously charged grid, and evaluate the attenuation of the vibrations in the frequency domain.An appropriate finite element program will be used to model the test piece, the boundary conditions, the loads, solve the boundary problem of the combined fields and extract the results.
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