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Friction damping of flutter in gas turbine engine airfoils (1983)

Sinha, A. ; Griffin, J. H.

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Publication Date: 2019-06-28

Description: This paper investigates the feasibility of using blade-to-ground friction dampers to stabilize flutter in blades. The response of an equivalent one mode model in which the aerodynamic force is represented as negative viscous damping is examined to investigate the following issues: the range of amplitudes over which friction damping can stabilize the response, the maximum negative aerodynamic damping that can be stabilized in such a manner, the effect of simultaneous resonant excitation on these stability limits, and the determination of those damper parameters which will be the best for flutter control.

Keywords: AIRCRAFT PROPULSION AND POWER

Type: Journal of Aircraft; 20; Apr. 198

Format: text

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