Passive tailboom vibration control using fluidic flexible matrix composite (F2MC) tubes

Research output: Contribution to conferencePaper

8 Scopus citations

Abstract

With low inherent structural damping, rotorcraft tailbooms are susceptible to vibration due to excitation from the rotor, vehicle maneuvers, and wind gusts. These vibrations cause driveline component wear, structural fatigue, and passenger discomfort. Lightweight and low-profile, Fluidic Flexible Matrix Composite (F2MC) tubes are a promising new class of vibration treatments for aerospace structures. This paper investigates the feasibility of using F2MC tubes to control helicopter tailboom vibration. A cantilever beam model of a tailboom is developed, with F2MC tubes attached at the base and extending longitudinally. Tubes on the top and bottom of the tailboom are coupled by an inertia track through an orifice that dissipates energy. Tuning the F2MC tube fluidic circuit parameters and fully opening the orifice produces an absorber design that attenuates over 20 dB of vibration in the first vertical bending mode. With a partially closed orifice, a tuned damped absorber adds 11.7% damping to the first mode.

Original languageEnglish (US)
DOIs
StatePublished - Feb 28 2014
Event55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States
Duration: Jan 13 2014Jan 17 2014

Other

Other55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014
CountryUnited States
CityNational Harbor, MD
Period1/13/141/17/14

All Science Journal Classification (ASJC) codes

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

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    Miura, K., Rahn, C. D., & Smith, E. (2014). Passive tailboom vibration control using fluidic flexible matrix composite (F2MC) tubes. Paper presented at 55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014, National Harbor, MD, United States. https://doi.org/10.2514/6.2014-1368