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Topology optimization design of surface radar absorbing coatings.

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Title: Topology optimization design of surface radar absorbing coatings.
Authors: Chen, Fei1 (AUTHOR), Zhu, Jihong2 (AUTHOR), Li, Fu1 (AUTHOR), Lu, Di1 (AUTHOR), Yu, Jirui1 (AUTHOR), Guo, Song1 (AUTHOR), Yang, Jianfeng1 (AUTHOR), Lv, Baogang1 (AUTHOR), Xue, Bin1 (AUTHOR) xuebin@opt.ac.cn
Source: Engineering Optimization. May2025, Vol. 57 Issue 5, p1219-1244. 26p.
Subjects: Radar cross sections, Physical optics, Permittivity, Permeability, Radar
Abstract: In this study, a topology optimization method is proposed to design the layout of the radar absorbing coatings (RACs) outside the surface. The radar cross section (RCS) of a structure with RACs is evaluated by the physical optics method. A material interpolation model oriented to the relative permittivity and relative permeability of RACs is established, while the sensitivity of the RCS with respect to the design variables is derived analytically. With the objective of minimizing the RCS at the specified incident angles and the constraint of the material usage, the strategy is implemented based on a gradient-based algorithm and the so-called three-field density method. Additionally, the phenomenon of the RCS increasing in certain regions when RACs are applied is explained in detail. Finally, the effectiveness of the proposed method is demonstrated by two numerical examples. [ABSTRACT FROM AUTHOR]
Copyright of Engineering Optimization is the property of Taylor & Francis Ltd 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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  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 185227770
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Topology optimization design of surface radar absorbing coatings.
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  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Fei%22">Chen, Fei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhu%2C+Jihong%22">Zhu, Jihong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Fu%22">Li, Fu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lu%2C+Di%22">Lu, Di</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Jirui%22">Yu, Jirui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Song%22">Guo, Song</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Jianfeng%22">Yang, Jianfeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lv%2C+Baogang%22">Lv, Baogang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xue%2C+Bin%22">Xue, Bin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xuebin@opt.ac.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Engineering+Optimization%22">Engineering Optimization</searchLink>. May2025, Vol. 57 Issue 5, p1219-1244. 26p.
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  Data: <searchLink fieldCode="DE" term="%22Radar+cross+sections%22">Radar cross sections</searchLink><br /><searchLink fieldCode="DE" term="%22Physical+optics%22">Physical optics</searchLink><br /><searchLink fieldCode="DE" term="%22Permittivity%22">Permittivity</searchLink><br /><searchLink fieldCode="DE" term="%22Permeability%22">Permeability</searchLink><br /><searchLink fieldCode="DE" term="%22Radar%22">Radar</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: In this study, a topology optimization method is proposed to design the layout of the radar absorbing coatings (RACs) outside the surface. The radar cross section (RCS) of a structure with RACs is evaluated by the physical optics method. A material interpolation model oriented to the relative permittivity and relative permeability of RACs is established, while the sensitivity of the RCS with respect to the design variables is derived analytically. With the objective of minimizing the RCS at the specified incident angles and the constraint of the material usage, the strategy is implemented based on a gradient-based algorithm and the so-called three-field density method. Additionally, the phenomenon of the RCS increasing in certain regions when RACs are applied is explained in detail. Finally, the effectiveness of the proposed method is demonstrated by two numerical examples. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Engineering Optimization is the property of Taylor & Francis Ltd 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:
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      – Type: doi
        Value: 10.1080/0305215X.2024.2349108
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      – Code: eng
        Text: English
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        PageCount: 26
        StartPage: 1219
    Subjects:
      – SubjectFull: Radar cross sections
        Type: general
      – SubjectFull: Physical optics
        Type: general
      – SubjectFull: Permittivity
        Type: general
      – SubjectFull: Permeability
        Type: general
      – SubjectFull: Radar
        Type: general
    Titles:
      – TitleFull: Topology optimization design of surface radar absorbing coatings.
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            NameFull: Chen, Fei
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            NameFull: Zhu, Jihong
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            NameFull: Li, Fu
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            NameFull: Lu, Di
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            NameFull: Yu, Jirui
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            NameFull: Guo, Song
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            NameFull: Yang, Jianfeng
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            NameFull: Lv, Baogang
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            – D: 01
              M: 05
              Text: May2025
              Type: published
              Y: 2025
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              Value: 57
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            – TitleFull: Engineering Optimization
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