Experimental characterization of a tailboom with Fluidic Flexible Matrix Composite tubes

Kentaro Miura, Matthew Krott, Edward Smith, Christopher D. Rahn, Peter Romano

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

4 Scopus citations

Abstract

Rotorcraft tailbooms vibrate due to excitation from the rotors, separated flow behind the rotor hub, vehicle maneuvers, and wind gusts. They also typically have low inherent structural damping. This vibration leads to driveline component wear, structural fatigue, and passenger discomfort. Fluidic Flexible Matrix Composite (F2MC) tubes, a new class of passive vibration treatments, are attached to a representative tailboom structure and experimentally tested. Each F2MC tube consists of a stainless steel mesh surrounding a rubber tube. The mesh and tube are independently fastened to end fittings that mechanically connect and fluidically seal the F2MC tubes, respectively. Two tubes are mounted to the top and bottom of the tailboom and interconnected with a fluidic circuit that can be pressurized. Tests are performed to measure the fluid volume pumped by the F2MC tubes when the tailboom bends, and the tailboom displacement in response to F2MC tube pressurization. Experimental results demonstrate that the F2MC tubes can actuate tailboom bending and pump fluid. The actuation and fluid pumping results agree well with theoretical predictions. Numerical simulations, based on a previously developed model, have indicated potential for F 2MC tubes to provide an efficient means of introducing useful levels of damping into tailboom structures. Characterization of the dynamic performance is ongoing. Copyright

Original languageEnglish (US)
Title of host publication70th American Helicopter Society International Annual Forum 2014
PublisherAmerican Helicopter Society
Pages1894-1900
Number of pages7
Volume3
ISBN (Print)9781632666918
StatePublished - 2014
Event70th American Helicopter Society International Annual Forum 2014 - Montreal, QC, Canada
Duration: May 20 2014May 22 2014

Other

Other70th American Helicopter Society International Annual Forum 2014
CountryCanada
CityMontreal, QC
Period5/20/145/22/14

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Miura, K., Krott, M., Smith, E., Rahn, C. D., & Romano, P. (2014). Experimental characterization of a tailboom with Fluidic Flexible Matrix Composite tubes. In 70th American Helicopter Society International Annual Forum 2014 (Vol. 3, pp. 1894-1900). American Helicopter Society.