Optimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation

Abstract Piezoelectric (PZT) shunt damping is an effective method to dissipate energy from a vibrating structure; however, most of the applications focus on targeting specific modes for structures vibrating at low-frequency range, i.e. deterministic substructure (DS). To optimally attenuate structur...

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Autores principales:	Asan G. A. Muthalif, Azni N. Wahid
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/63414147459e480eaa1307ec33a14eda
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spelling	oai:doaj.org-article:63414147459e480eaa1307ec33a14eda2021-12-02T13:20:12ZOptimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation10.1038/s41598-021-84097-w2045-2322https://doaj.org/article/63414147459e480eaa1307ec33a14eda2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84097-whttps://doaj.org/toc/2045-2322Abstract Piezoelectric (PZT) shunt damping is an effective method to dissipate energy from a vibrating structure; however, most of the applications focus on targeting specific modes for structures vibrating at low-frequency range, i.e. deterministic substructure (DS). To optimally attenuate structures vibrating at high-frequency range, i.e. non-deterministic substructure (Non-DS) using a PZT shunt damper, it is found that the impedance of the PZT patch’s terminal needs to be the complex conjugate of its inherent capacitance paralleled with the impedance ‘faced’ by its non-deterministic host structure underline moment actuation. The latter was derived in terms of estimation of the effective line moment mobility of a PZT patch on a Non-DS plate by integrating the expression of driving point moment mobility of an infinite thin plate. This paper conducts a parametric investigation to study the effect of changing the size, quantity and configuration of the PZT patch to the performance of the optimal PZT shunt dampers in dissipating the energy of its non-deterministic host structure. Results are shown in terms of energy reduction ratio of the thin plate when attached with optimal PZT shunt damper(s).Asan G. A. MuthalifAzni N. WahidNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Asan G. A. Muthalif Azni N. Wahid Optimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation
description	Abstract Piezoelectric (PZT) shunt damping is an effective method to dissipate energy from a vibrating structure; however, most of the applications focus on targeting specific modes for structures vibrating at low-frequency range, i.e. deterministic substructure (DS). To optimally attenuate structures vibrating at high-frequency range, i.e. non-deterministic substructure (Non-DS) using a PZT shunt damper, it is found that the impedance of the PZT patch’s terminal needs to be the complex conjugate of its inherent capacitance paralleled with the impedance ‘faced’ by its non-deterministic host structure underline moment actuation. The latter was derived in terms of estimation of the effective line moment mobility of a PZT patch on a Non-DS plate by integrating the expression of driving point moment mobility of an infinite thin plate. This paper conducts a parametric investigation to study the effect of changing the size, quantity and configuration of the PZT patch to the performance of the optimal PZT shunt dampers in dissipating the energy of its non-deterministic host structure. Results are shown in terms of energy reduction ratio of the thin plate when attached with optimal PZT shunt damper(s).
format	article
author	Asan G. A. Muthalif Azni N. Wahid
author_facet	Asan G. A. Muthalif Azni N. Wahid
author_sort	Asan G. A. Muthalif
title	Optimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation
title_short	Optimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation
title_full	Optimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation
title_fullStr	Optimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation
title_full_unstemmed	Optimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation
title_sort	optimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/63414147459e480eaa1307ec33a14eda
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Optimal piezoelectric shunt dampers for non-deterministic substructure vibration control: estimation and parametric investigation

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