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

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 journal › Article › peer-review

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 language	English (US)
Pages (from-to)	1101-1116
Number of pages	16
Journal	Annual Forum Proceedings - American Helicopter Society
Volume	2
State	Published - 1995

All Science Journal Classification (ASJC) codes

Aerospace Engineering
Transportation

Cite this

@article{39d520eb8e0e48c8a54fa4e3043ba151,

title = "Formulation and validation of a finite element model for elastomeric lag dampers",

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.",

author = "Edward Smith and Beale, \{Michael R.\} and Kiran Govindswamy and Vascsinec, \{Michael J.\} and Lesieutre, \{George A.\}",

year = "1995",

language = "English (US)",

volume = "2",

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journal = "Annual Forum Proceedings - American Helicopter Society",

issn = "0733-4249",

publisher = "American Helicopter Society",

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AU - Smith, Edward

AU - Beale, Michael R.

AU - Govindswamy, Kiran

AU - Vascsinec, Michael J.

AU - Lesieutre, George A.

PY - 1995

Y1 - 1995

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0029463943

UR - https://www.scopus.com/pages/publications/0029463943#tab=citedBy

M3 - Article

AN - SCOPUS:0029463943

SN - 0733-4249

VL - 2

SP - 1101

EP - 1116

JO - Annual Forum Proceedings - American Helicopter Society

JF - Annual Forum Proceedings - American Helicopter Society

ER -

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

Abstract

All Science Journal Classification (ASJC) codes

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