Environmental Effects on Piezoelectric Sensors Array Signals and a Compensated Damage Imaging Method

Piezoelectric sensors array based damage imaging method as a high resolution source localization algorithm is becoming a promising method in structural health monitoring (SHM) technology. However, the environmental variations could affect the gain-phase of array signal. This paper experimentally eva...

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Autores principales:	Zhiling Wang, Yongteng Zhong, Jinyu Zhou, Chaoyue Li, Lina Zhong
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	piezoelectric sensors array lamb waves environmental effects damage imaging compensation Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/ded6591a178443939bb3ac26e125e97e
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spelling	oai:doaj.org-article:ded6591a178443939bb3ac26e125e97e2021-11-25T18:13:14ZEnvironmental Effects on Piezoelectric Sensors Array Signals and a Compensated Damage Imaging Method10.3390/ma142267421996-1944https://doaj.org/article/ded6591a178443939bb3ac26e125e97e2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6742https://doaj.org/toc/1996-1944Piezoelectric sensors array based damage imaging method as a high resolution source localization algorithm is becoming a promising method in structural health monitoring (SHM) technology. However, the environmental variations could affect the gain-phase of array signal. This paper experimentally evaluates the environmental effects on piezoelectric sensors array, and presents a compensated 2D-MUSIC based damage imaging method for composite structures. Firstly, detailed analysis and comparison discussion about the gain-phase difference of array signal when the environmental parameters change, and the gain-phase changes respect to the environmental parameters could be obtained. Secondly, array error matrix is structured and substituted into the steering vector of the original 2D-MUSIC algorithm to compensate. Finally, the compensated 2D-MUSIC algorithm is applied for estimating the initial estimates of damage. After substituting these initial estimates, the cost function is minimized by adaptive iterative calculating the reasonable location of the damage source. The experiments on an epoxy laminate plate demonstrate the validity and effectiveness of the proposed method.Zhiling WangYongteng ZhongJinyu ZhouChaoyue LiLina ZhongMDPI AGarticlepiezoelectric sensors arraylamb wavesenvironmental effectsdamage imagingcompensationTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6742, p 6742 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	piezoelectric sensors array lamb waves environmental effects damage imaging compensation Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	piezoelectric sensors array lamb waves environmental effects damage imaging compensation Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Zhiling Wang Yongteng Zhong Jinyu Zhou Chaoyue Li Lina Zhong Environmental Effects on Piezoelectric Sensors Array Signals and a Compensated Damage Imaging Method
description	Piezoelectric sensors array based damage imaging method as a high resolution source localization algorithm is becoming a promising method in structural health monitoring (SHM) technology. However, the environmental variations could affect the gain-phase of array signal. This paper experimentally evaluates the environmental effects on piezoelectric sensors array, and presents a compensated 2D-MUSIC based damage imaging method for composite structures. Firstly, detailed analysis and comparison discussion about the gain-phase difference of array signal when the environmental parameters change, and the gain-phase changes respect to the environmental parameters could be obtained. Secondly, array error matrix is structured and substituted into the steering vector of the original 2D-MUSIC algorithm to compensate. Finally, the compensated 2D-MUSIC algorithm is applied for estimating the initial estimates of damage. After substituting these initial estimates, the cost function is minimized by adaptive iterative calculating the reasonable location of the damage source. The experiments on an epoxy laminate plate demonstrate the validity and effectiveness of the proposed method.
format	article
author	Zhiling Wang Yongteng Zhong Jinyu Zhou Chaoyue Li Lina Zhong
author_facet	Zhiling Wang Yongteng Zhong Jinyu Zhou Chaoyue Li Lina Zhong
author_sort	Zhiling Wang
title	Environmental Effects on Piezoelectric Sensors Array Signals and a Compensated Damage Imaging Method
title_short	Environmental Effects on Piezoelectric Sensors Array Signals and a Compensated Damage Imaging Method
title_full	Environmental Effects on Piezoelectric Sensors Array Signals and a Compensated Damage Imaging Method
title_fullStr	Environmental Effects on Piezoelectric Sensors Array Signals and a Compensated Damage Imaging Method
title_full_unstemmed	Environmental Effects on Piezoelectric Sensors Array Signals and a Compensated Damage Imaging Method
title_sort	environmental effects on piezoelectric sensors array signals and a compensated damage imaging method
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ded6591a178443939bb3ac26e125e97e
work_keys_str_mv	AT zhilingwang environmentaleffectsonpiezoelectricsensorsarraysignalsandacompensateddamageimagingmethod AT yongtengzhong environmentaleffectsonpiezoelectricsensorsarraysignalsandacompensateddamageimagingmethod AT jinyuzhou environmentaleffectsonpiezoelectricsensorsarraysignalsandacompensateddamageimagingmethod AT chaoyueli environmentaleffectsonpiezoelectricsensorsarraysignalsandacompensateddamageimagingmethod AT linazhong environmentaleffectsonpiezoelectricsensorsarraysignalsandacompensateddamageimagingmethod
_version_	1718411470663843840

Environmental Effects on Piezoelectric Sensors Array Signals and a Compensated Damage Imaging Method

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