Elastomeric damper model for rotorcraft comprehensive analysis

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

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

1 Scopus citations

Abstract

A physics-based elastomeric damper model was integrated in Rotor craft 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, nonlinear 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 capable 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 non linearity.

Original languageEnglish (US)
Title of host publication54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
DOIs
StatePublished - Aug 2 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

Name54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

Other

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

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All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Building and Construction
  • Architecture

Cite this

Kang, H., Hasbun, M., Saberi, H., Marr, C., Lesieutre, G. A., & Smith, E. (2013). Elastomeric damper model for rotorcraft comprehensive analysis. In 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference (54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference). https://doi.org/10.2514/6.2013-1714