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Absorption characteristics of anechoic coating on cavity structure and its optimization design

  • School of Astronautics, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

The absorption characteristics of the mixed-cavity structure anechoic coating with air backing were studied by using finite element method. The calculation results indicate that the absorption characteristics of this kind of cavity structure are superior to those of single-cavity structure under the same perforated percentage. Then, the absorption properties of anechoic coating on mixed-cavity structure at full-frequency range were further improved by optimization design. The influence of coating structure parameters on absorption characteristics was studied.

Original languageEnglish
Pages (from-to)217-220
Number of pages4
JournalZhendong yu Chongji/Journal of Vibration and Shock
Volume30
Issue number8
StatePublished - Aug 2011
Externally publishedYes

Keywords

  • Anechoic coating
  • Finite element method
  • Mixed-cavity structure
  • Optimization design

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