Nonlinear Dynamics of Stockbridge Dampers

O. Barry, J. W. Zu, D. C.D. Oguamanam

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

The present paper deals with the nonlinear dynamics of a Stockbridge damper. The nonlinearity is from damping and the geometric stretching of the messenger. The Stockbridge damper is modeled as two cantilevered beams with tip masses. The equations of motion and boundary conditions are derived using Hamilton's principle. The model is valid for both symmetric and asymmetric Stockbridge dampers. Explicit expressions are presented for the frequency equation, mode shapes, nonlinear frequency, and modulation equations. Experiments are conducted to validate the proposed model.

Original languageEnglish
Article number061017
JournalJournal of Dynamic Systems, Measurement and Control, Transactions of the ASME
Volume137
Issue number6
DOIs
StatePublished - 1 Jun 2015

Keywords

  • Stockbridge damper
  • Strouhal frequency
  • messenger

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