An approach to determination of shunt circuits parameters for damping vibrations
| Autor: | N.A. Iurlova, N. V. Sevodina, M. A. Iurlov, D.A. Oshmarin, V. P. Matveenko |
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| Rok vydání: | 2018 |
| Předmět: |
shunt circuits
damping Materials science Acoustics piezoelectric element Numerical modeling Electoelasticity 02 engineering and technology 021001 nanoscience & nanotechnology Piezoelectricity Vibration numerical modeling 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials natural vibrations lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials General Materials Science 0210 nano-technology Shunt (electrical) Civil and Structural Engineering Electronic circuit |
| Zdroj: | International Journal of Smart and Nano Materials, Vol 9, Iss 2, Pp 135-149 (2018) |
| ISSN: | 1947-542X 1947-5411 |
| DOI: | 10.1080/19475411.2018.1461144 |
| Popis: | This paper considers the problem of natural vibrations of a deformable structure containing elements made of piezomaterials. The piezoelectric elements are connected through electrodes to an external electric circuit, which consists of resistive, inductive and capacitive elements. Based on the solution of this problem, the parameters of external electric circuits are searched for to allow optimal passive control of the structural vibrations. The solution to the problem is complex natural vibration frequencies, the real part of which corresponds to the circular eigenfrequency of vibrations and the imaginary part corresponds to its damping rate (damping ratio). The analysis of behaviour of the imaginary parts of complex eigenfrequencies in the space of external circuit parameters allows one to damp given modes of structure vibrations. The effectiveness of the proposed approach is demonstrated using a cantilever-clamped plate and a shell structure in the form of a semi-cylinder connected to series resonant $$RL$$ circuits. |
| Databáze: | OpenAIRE |
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