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

Kentaro Miura; Christopher D. Rahn; Edward C. Smith

doi:10.2514/6.2014-1368

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

Kentaro Miura, Christopher D. Rahn, Edward C. Smith

Research output: Contribution to conference › Paper › peer-review

10 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 language	English (US)
DOIs	https://doi.org/10.2514/6.2014-1368
State	Published - 2014
Event	55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States Duration: Jan 13 2014 → Jan 17 2014

Other

Other	55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014
Country/Territory	United States
City	National Harbor, MD
Period	1/13/14 → 1/17/14

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Mechanics of Materials
Building and Construction
Architecture

Access to Document

10.2514/6.2014-1368

Cite this

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title = "Passive tailboom vibration control using fluidic flexible matrix composite (F2MC) tubes",

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.",

author = "Kentaro Miura and Rahn, {Christopher D.} and Smith, {Edward C.}",

year = "2014",

doi = "10.2514/6.2014-1368",

language = "English (US)",

note = "55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 ; Conference date: 13-01-2014 Through 17-01-2014",

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Passive tailboom vibration control using fluidic flexible matrix composite (F²MC) tubes. / Miura, Kentaro; Rahn, Christopher D.; Smith, Edward C.
2014. 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.

Research output: Contribution to conference › Paper › peer-review

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AU - Rahn, Christopher D.

AU - Smith, Edward C.

PY - 2014

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N2 - 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.

AB - 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.

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