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Active Fuzzy Control on Invisible Metamaterial Cloak in Elastic Thick Plate with Multiple Arbitrary Targets.

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Title: Active Fuzzy Control on Invisible Metamaterial Cloak in Elastic Thick Plate with Multiple Arbitrary Targets.
Authors: Jiang, Jing-Wei1,2 jw_1895@tju.edu.cn, Wu, Gui-Jiao3 271382091@qq.com, Sun, Yu-Xing3 1462573270@qq.com, Wang, Yi-Ze1,4 wangyize@tju.edu.cn
Source: Journal of Applied Mechanics. Jun2026, Vol. 93 Issue 6, p1-20. 20p.
Subjects: Cloaking devices, Invisibility, Stress concentration, Piezoelectric actuators, Elastic waves, Scattering amplitude (Physics), Elastic plates & shells
Abstract: Wave invisibility has great values in aerospace and military fields. In this work, a flexural wave metamaterial cloak is proposed for multiple arbitrary targets in elastic thick plate. The fuzzy proportional-integral-derivative (PID) active control is applied. The scattering field of flexural wave in thick plate is considered. Based on the wave function expansion method and Mindlin thick plate theory, the wave equation for infinite and arbitrary hole targets with their enveloping cloaks is derived. Both structure and material parameters are considered to discuss about the dynamic stress concentration, scattering amplitude, and scattering cross section (SCS) of the multiple targets. In addition, the cloaking device is designed to locate around every hole target, in which multiple layers with regularly arranged piezoelectric (PZT) patches are included. Every PZT patch is connected to the external active circuit with fuzzy PID control function. The theoretical and experimental results indicate that the present flexural cloak meets invisible requirements. Dynamic stress concentration, scattering amplitude, and scattering cross section of multiple targets are reduced by the cloaking configuration. Compared to the original structure without fuzzy PID active control, the invisible performance with the active cloak can be effectively enhanced. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Applied Mechanics is the property of American Society of Mechanical Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 194718082
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Active Fuzzy Control on Invisible Metamaterial Cloak in Elastic Thick Plate with Multiple Arbitrary Targets.
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  Data: <searchLink fieldCode="AR" term="%22Jiang%2C+Jing-Wei%22">Jiang, Jing-Wei</searchLink><relatesTo>1,2</relatesTo><i> jw_1895@tju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wu%2C+Gui-Jiao%22">Wu, Gui-Jiao</searchLink><relatesTo>3</relatesTo><i> 271382091@qq.com</i><br /><searchLink fieldCode="AR" term="%22Sun%2C+Yu-Xing%22">Sun, Yu-Xing</searchLink><relatesTo>3</relatesTo><i> 1462573270@qq.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Yi-Ze%22">Wang, Yi-Ze</searchLink><relatesTo>1,4</relatesTo><i> wangyize@tju.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Applied+Mechanics%22">Journal of Applied Mechanics</searchLink>. Jun2026, Vol. 93 Issue 6, p1-20. 20p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Cloaking+devices%22">Cloaking devices</searchLink><br /><searchLink fieldCode="DE" term="%22Invisibility%22">Invisibility</searchLink><br /><searchLink fieldCode="DE" term="%22Stress+concentration%22">Stress concentration</searchLink><br /><searchLink fieldCode="DE" term="%22Piezoelectric+actuators%22">Piezoelectric actuators</searchLink><br /><searchLink fieldCode="DE" term="%22Elastic+waves%22">Elastic waves</searchLink><br /><searchLink fieldCode="DE" term="%22Scattering+amplitude+%28Physics%29%22">Scattering amplitude (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Elastic+plates+%26+shells%22">Elastic plates & shells</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Wave invisibility has great values in aerospace and military fields. In this work, a flexural wave metamaterial cloak is proposed for multiple arbitrary targets in elastic thick plate. The fuzzy proportional-integral-derivative (PID) active control is applied. The scattering field of flexural wave in thick plate is considered. Based on the wave function expansion method and Mindlin thick plate theory, the wave equation for infinite and arbitrary hole targets with their enveloping cloaks is derived. Both structure and material parameters are considered to discuss about the dynamic stress concentration, scattering amplitude, and scattering cross section (SCS) of the multiple targets. In addition, the cloaking device is designed to locate around every hole target, in which multiple layers with regularly arranged piezoelectric (PZT) patches are included. Every PZT patch is connected to the external active circuit with fuzzy PID control function. The theoretical and experimental results indicate that the present flexural cloak meets invisible requirements. Dynamic stress concentration, scattering amplitude, and scattering cross section of multiple targets are reduced by the cloaking configuration. Compared to the original structure without fuzzy PID active control, the invisible performance with the active cloak can be effectively enhanced. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Applied Mechanics is the property of American Society of Mechanical Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1115/1.4071576
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 20
        StartPage: 1
    Subjects:
      – SubjectFull: Cloaking devices
        Type: general
      – SubjectFull: Invisibility
        Type: general
      – SubjectFull: Stress concentration
        Type: general
      – SubjectFull: Piezoelectric actuators
        Type: general
      – SubjectFull: Elastic waves
        Type: general
      – SubjectFull: Scattering amplitude (Physics)
        Type: general
      – SubjectFull: Elastic plates & shells
        Type: general
    Titles:
      – TitleFull: Active Fuzzy Control on Invisible Metamaterial Cloak in Elastic Thick Plate with Multiple Arbitrary Targets.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Jiang, Jing-Wei
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          Name:
            NameFull: Wu, Gui-Jiao
      – PersonEntity:
          Name:
            NameFull: Sun, Yu-Xing
      – PersonEntity:
          Name:
            NameFull: Wang, Yi-Ze
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          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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              Value: 00218936
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              Value: 93
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              Value: 6
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            – TitleFull: Journal of Applied Mechanics
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