Elastomeric damper model for rotorcraft comprehensive analysis

Hao Kang, Matt Hasbun, Hossein Saberi, Conor Marr, George A. Lesieutre, Edward C. Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A physics-based elastomeric damper model was integrated in Rotorcraft Comprehensive Analysis System (RCAS) to support the analysis and design of rotorcraft and dampers. The model was formulated based on a finite element anelastic displacement fields (ADF) method for elstomeric materials1 and within the framework of finite element based, non- linear multibody dynamics that ensure the models for systems of arbitrary topology. A 1-D ADF-based single finite element was used in the model development which is capa- ble of capturing the material nonlinearity with good accuracy and have a high degree of computational efficiency when integrated in a rotorcraft aeromechanical analysis program. Validation studies demonstrated the accuracy of the damper model for typical single and dual frequency operating conditions. Evaluations of the damper model using a typical high fidelity rotor blade model were also performed and demonstrate the convergence of the rotor model as well as the capability of the damper model to capture the material nonlinearity.

Original languageEnglish (US)
Title of host publication54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
StatePublished - Aug 15 2013
Event54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Boston, MA, United States
Duration: Apr 8 2013Apr 11 2013

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN (Print)0273-4508

Other

Other54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
CountryUnited States
CityBoston, MA
Period4/8/134/11/13

All Science Journal Classification (ASJC) codes

  • Architecture
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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