Multi-objective optimization design of radar absorbing sandwich structure

By introducing a dimensionless parameter to couple the two objectives, weight and radar absorbing performance, into a single objective function, a multi-objective optimization procedure for the radar absorbing sandwich structure (RASS) with a cellular core is proposed. The optimization models consid...

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Bibliographic Details
Published inApplied mathematics and mechanics Vol. 31; no. 3; pp. 339 - 348
Main Author 陈明继 裴永茂 方岱宁
Format Journal Article
LanguageEnglish
Published Heidelberg Shanghai University Press 01.03.2010
Applied Mechanics Laboratory AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P. R. China%State Key Laboratory for Turbulence and Complex Systems LTCS, College of Engineering, Peking University, Beijing 100871, P. R. China%Applied Mechanics Laboratory AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P. R. China
State Key Laboratory for Turbulence and Complex Systems LTCS, College of Enginee
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ISSN0253-4827
1573-2754
DOI10.1007/s10483-010-0307-z

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Summary:By introducing a dimensionless parameter to couple the two objectives, weight and radar absorbing performance, into a single objective function, a multi-objective optimization procedure for the radar absorbing sandwich structure (RASS) with a cellular core is proposed. The optimization models considered are one-side clamped sandwich panels with four kinds of cores subject to uniformly distributed loads. The average specular reflectivity calculated with the transfer matrix method and the periodic moment method is utilized to characterize the radar absorbing performance, while the mechanical constraints include the facesheet yielding, core shearing, and facesheet wrinkling. The optimization analysis indicates that the sandwich structure with a two-dimensional (2D) composite lattice core filled with ultra-lightweight sponge may be a better candidate of lightweight RASS than those with cellular foam or hexagonal honeycomb cores. The 2D Kagome lattice is found to outperform the square lattice with respect to radar absorbing.
Bibliography:O642.1
31-1650/O1
sandwich structure, multi-objective optimization, lightweight, radar absorbing, failure mode
V414.6
ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0253-4827
1573-2754
DOI:10.1007/s10483-010-0307-z