Passive damping performance of an adaptive carbon-fiber reinforced plastics/lead zirconate titanate beam

Toshio Tanimoto, Kiyoshi Horiuchi, Kenji Uchino

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Carbon fiber reinforced plastics (CFRP) are widely used as structural materials in applications such as spacecraft structures. However, although they have a high stiffness and low density, these materials are considered to be unsuitable for low-vibration structures because of their inherent low vibration damping (loss factor η = 0.001-0.01). This study examines the passive damping of CFRP cantilever beams using resistively shunted, surface-bonded piezoelectric ceramic, PbZrO3-PbTiO3 (PZT) sheets. The vibration damping of the CFRP beam is significantly improved at the optimal shunting resistance which can be predicted theoretically. The first three vibration modes are most effectively damped by locating the PZT elements in areas of maximum strain as determined by a modal analysis of the beam.

Original languageEnglish (US)
Pages (from-to)6110-6113
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume36
Issue number9 SUPPL. B
StatePublished - Sep 1 1997

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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