A mathematical model for squeeze film dampers is developed, and the solution results are compared with data from four different test rigs. A special feature of the analysis is the treatment of several different types of end seals and inlets, with inlet feedback included. A finite difference method is used to solve the Reynolds equation, with a banded matrix inversion routine. The test data are taken from a new high-speed free-rotor rig, and from three previously tested controlled-orbit rigs.
Squeeze Film Damper Characteristics for Gas Turbine Engines
R. A. Marmol,
R. A. Marmol
Government Products Division, Pratt and Whitney Aircraft Group, West Palm Beach, Fla.
J. M. Vance
Department of Mechanical Engineering, University of Florida, Gainesville, Fla.
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Marmol, R. A., and Vance, J. M. (January 1, 1978). "Squeeze Film Damper Characteristics for Gas Turbine Engines." ASME. J. Mech. Des. January 1978; 100(1): 139–146. https://doi.org/10.1115/1.3453878
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