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James Bleeg Phones & Addresses

  • Dublin, NH
  • 4 Ivoryton Pl, Avon, CT 06001
  • 9 Erin St, Middletown, CT 06457
  • 246 Carriage Crossing Ln, Middletown, CT 06457 (860) 635-0238
  • 165 Coniston Dr, Rochester, NY 14610 (585) 288-8654
  • 300 Cold Spring Rd, Rocky Hill, CT 06067 (860) 529-2018
  • Monson, MA

Publications

Us Patents

Aeroelastic Model Using The Principal Shapes Of Modes (Amps)

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US Patent:
20090099796, Apr 16, 2009
Filed:
Jun 15, 2007
Appl. No.:
11/763649
Inventors:
Ming-Ta Yang - Carlisle MA, US
James M. Bleeg - Middletown CT, US
James A. Eley - Middletown CT, US
International Classification:
G06F 19/00
US Classification:
702 56
Abstract:
The Aeroelastic Model using the Principal Shapes of modes (AMPS) is a method used to predict flutter in gas turbine engines. Modern gas turbine engines often include rotors with flexible disks and/or significant blade geometry variations. The AMPS method accounts for the varying blade mode shapes associated with flexible disks as well as changing blade geometry, providing accurate flutter predictions for a large number of modes from a relatively small number of CFD (computational fluid dynamics) simulations. The AMPS method includes determining a smaller set of principal shapes that approximates a larger set of structural modes of interest. Using linear superposition, aerodynamic forces associated with the vibration of the principal shapes can be used to construct the full aerodynamic coupling matrix associated with the structural modes of interest. An eigenvalue equation is solved to determine a damping distribution associated with the structural modes of interest. The damping distribution is predictive of flutter.
James M Bleeg from Dublin, NH, age ~52 Get Report