Formulation and validation of a finite element model for elastomeric lag dampers

Edward Smith, Michael R. Beale, Kiran Govindswamy, Michael J. Vascsinec, George A. Lesieutre

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A time-domain finite element, model incorporating nonlinear viscoelastic behavior, characteristic of elastomers, has been developed and implemented in a rigid blade flag-lag-torsion analysis. Results show that the nonlinear behavior of the elastomeric damper has a significant effect on lag mode stability in hover and forward flight. The details of damper response in forward flight vary significantly with disk loading and advance ratio.

Original languageEnglish (US)
Pages (from-to)1101-1116
Number of pages16
JournalAnnual Forum Proceedings - American Helicopter Society
Volume2
StatePublished - 1995

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Transportation

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