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Semi-Active Vibration Isolation Using Fluidic Flexible Matrix Composite Mounts

[+] Author Affiliations
Michael Philen

Virginia Polytechnic Institute and State University, Blacksburg, VA

Paper No. SMASIS2009-1308, pp. 463-469; 7 pages
doi:10.1115/SMASIS2009-1308
From:
  • ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 1: Active Materials, Mechanics and Behavior; Modeling, Simulation and Control
  • Oxnard, California, USA, September 21–23, 2009
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-4896-8 | eISBN: 978-0-7918-3857-0
  • Copyright © 2009 by ASME

abstract

Variable modulus fluidic flexible matrix composites (F2 MC) are investigated for vibration isolation mounts. The fluidic flexible matrix composites are based upon flexible matrix composite tubes containing a high bulk modulus internal fluid. By tailoring the fibers (orientation, number of layers, material, etc.) and the choice of the matrix material, the F2 MC tube can obtain significant changes in stiffness by simply opening or closing an inlet valve to the tubes. The objective in this research is to investigate the F2 MC variable modulus system for semi-active vibration isolation. A nonlinear analytical model of an isolation mount based on the F2 MC tube with a proportional valve is developed. Analysis results indicate that the F2 MC based isolation mount is effective for reducing the transmission from a disturbance source to a mass. Simulation studies demonstrate that the resonant frequencies and the damping can be controlled through simple valve control, which can be effective for vibration isolation.

Copyright © 2009 by ASME

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