Multi-objective optimization for vibration suppression of smart laminated composites

The present paper proposes a multi-objective optimization technique for smart laminated composites to maximize two conflicting objectives. The first objective is the performance of active vibration control of smart composite with piezoelectric (PZT) actuators. The second is the fundamental frequency...

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Autores principales:	Shinya HONDA, Yoshihiro NARITA, Itsuro KAJIWARA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2016
Materias:	smart structure laminated composite multi-objective optimization vibration control laser excitation Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/e41062feae244de8b886f862e137db8f
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spelling	oai:doaj.org-article:e41062feae244de8b886f862e137db8f2021-11-26T06:35:12ZMulti-objective optimization for vibration suppression of smart laminated composites2187-974510.1299/mej.14-00561https://doaj.org/article/e41062feae244de8b886f862e137db8f2016-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/1/3_14-00561/_pdf/-char/enhttps://doaj.org/toc/2187-9745The present paper proposes a multi-objective optimization technique for smart laminated composites to maximize two conflicting objectives. The first objective is the performance of active vibration control of smart composite with piezoelectric (PZT) actuators. The second is the fundamental frequency of smart structures related to the performance of passive vibration control. Both performances of active and passive vibration control are maximized simultaneously. The vibration suppression of smart structures strongly depends on both actuator placements and vibration mode shapes. It is possible to design vibration mode shapes for laminated fibrous composites since their anisotropy for whole thickness is tailorable by arranging fiber orientation angle in each layer. This allows the smart structure with laminated composite to archive higher performance of vibration suppression than those with isotropic materials. However, the optimized structure results in lower natural frequencies than composites with typical fiber orientation angles since an effective input of control force from actuators is realized for the structure with lower stiffness. This reveals that there is a trade-off relation for smart composite structures between the performance of active vibration suppression and natural frequencies. To disclose this relation, the present study applies the effective multi-objective optimization technique, the refined non-dominated genetic algorithm (NSGAII), and obtains Pareto optimal solutions. Calculated results are successfully validated by a comparison with those from the real-time control experiment where a laser excitation technique which is effective to small sized structures is used.Shinya HONDAYoshihiro NARITAItsuro KAJIWARAThe Japan Society of Mechanical Engineersarticlesmart structurelaminated compositemulti-objective optimizationvibration controllaser excitationMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 1, Pp 14-00561-14-00561 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	smart structure laminated composite multi-objective optimization vibration control laser excitation Mechanical engineering and machinery TJ1-1570
spellingShingle	smart structure laminated composite multi-objective optimization vibration control laser excitation Mechanical engineering and machinery TJ1-1570 Shinya HONDA Yoshihiro NARITA Itsuro KAJIWARA Multi-objective optimization for vibration suppression of smart laminated composites
description	The present paper proposes a multi-objective optimization technique for smart laminated composites to maximize two conflicting objectives. The first objective is the performance of active vibration control of smart composite with piezoelectric (PZT) actuators. The second is the fundamental frequency of smart structures related to the performance of passive vibration control. Both performances of active and passive vibration control are maximized simultaneously. The vibration suppression of smart structures strongly depends on both actuator placements and vibration mode shapes. It is possible to design vibration mode shapes for laminated fibrous composites since their anisotropy for whole thickness is tailorable by arranging fiber orientation angle in each layer. This allows the smart structure with laminated composite to archive higher performance of vibration suppression than those with isotropic materials. However, the optimized structure results in lower natural frequencies than composites with typical fiber orientation angles since an effective input of control force from actuators is realized for the structure with lower stiffness. This reveals that there is a trade-off relation for smart composite structures between the performance of active vibration suppression and natural frequencies. To disclose this relation, the present study applies the effective multi-objective optimization technique, the refined non-dominated genetic algorithm (NSGAII), and obtains Pareto optimal solutions. Calculated results are successfully validated by a comparison with those from the real-time control experiment where a laser excitation technique which is effective to small sized structures is used.
format	article
author	Shinya HONDA Yoshihiro NARITA Itsuro KAJIWARA
author_facet	Shinya HONDA Yoshihiro NARITA Itsuro KAJIWARA
author_sort	Shinya HONDA
title	Multi-objective optimization for vibration suppression of smart laminated composites
title_short	Multi-objective optimization for vibration suppression of smart laminated composites
title_full	Multi-objective optimization for vibration suppression of smart laminated composites
title_fullStr	Multi-objective optimization for vibration suppression of smart laminated composites
title_full_unstemmed	Multi-objective optimization for vibration suppression of smart laminated composites
title_sort	multi-objective optimization for vibration suppression of smart laminated composites
publisher	The Japan Society of Mechanical Engineers
publishDate	2016
url	https://doaj.org/article/e41062feae244de8b886f862e137db8f
work_keys_str_mv	AT shinyahonda multiobjectiveoptimizationforvibrationsuppressionofsmartlaminatedcomposites AT yoshihironarita multiobjectiveoptimizationforvibrationsuppressionofsmartlaminatedcomposites AT itsurokajiwara multiobjectiveoptimizationforvibrationsuppressionofsmartlaminatedcomposites
_version_	1718409814745284608

Multi-objective optimization for vibration suppression of smart laminated composites

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