Design of Viscoelastic Damped Plate Structures with a Multi-Material Topology Optimization Method

Abstract A viscoelastic damping layer attached to the plate structure can control vibrations but increases mass. Involving multiple viscoelastic materials, the contribution of different materials needs to be evaluated and allocated. In the paper, a topology optimization model is proposed to find dis...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 2694; no. 1; pp. 12047 - 12053
Main Authors Li, Zhuang, Huang, Qibai
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2024
Subjects
Composite structures
free damping layer
Mathematical analysis
multi-material
Optimization models
Topology optimization
Velocity distribution
Vibration control
Viscoelastic damping
Viscoelastic materials
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Summary:Abstract A viscoelastic damping layer attached to the plate structure can control vibrations but increases mass. Involving multiple viscoelastic materials, the contribution of different materials needs to be evaluated and allocated. In the paper, a topology optimization model is proposed to find distributions of different viscoelastic materials adopting a multi-material level set method, for maximizing single-order or multi-order modal loss factors. Limited by material volume fraction, the variational principle is applied to establish the velocity field, and the problem is solved by a gradient-based method. Numerical examples are performed to illustrate that loss factors of composite plate structures can be maximized with optimal distributions obtained from the multi-material level set method.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2694/1/012047