Design of a fluidic flexible matrix composite damping treatment for a cantilever beam

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

Abstract

This investigation designs a vibration damping treatment consisting of multiple fluidic flexible matrix composite (F2MC) tubes that is bonded to a cantilever beam. The transverse beam vibration couples with the F2MC tube strain to generate fluid flow through an energy dissipating orifice. At resonance, beam vibration induces fluid flow, amplified by the elastic anisotropy of the fiber-reinforced tube wall. Flow through an optimal orifice maximizes energy dissipation, greatly reducing the resonant peaks. The F2MC tubes in this work are three-layer hollow cylinders with a fiber reinforced middle layer that can be modeled with Lekhnitskii's solution. Using Euler-Bernoulli beam theory, an analytical model is developed that enables the design of a multi-F2MC damping treatment for a laboratory-scale aluminum cantilever beam. A compact F2MC-integrated beam prototype has been constructed with two commercially available miniature (2 mm in diameter) F2MC tubes arranged in parallel. Through optimal selection of the attachment locations and orifice size, analysis results show that 32% damping in the first mode is achievable.

Original languageEnglish (US)
Title of host publication28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013
Pages633-651
Number of pages19
StatePublished - 2013
Event28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013 - State College, PA, United States
Duration: Sep 9 2013Sep 11 2013

Publication series

Name28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013
Volume1

Other

Other28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013
CountryUnited States
CityState College, PA
Period9/9/139/11/13

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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  • Cite this

    Zhu, B., Rahn, C. D., & Bakis, C. E. (2013). Design of a fluidic flexible matrix composite damping treatment for a cantilever beam. In 28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013 (pp. 633-651). (28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013; Vol. 1).