Friction damping of flutter in gas turbine engine airfoils

A. Sinha; J. H. Griffin

doi:10.2514/3.44878

Friction damping of flutter in gas turbine engine airfoils

A. Sinha, J. H. Griffin

Research output: Contribution to journal › Article › peer-review

102 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	372-376
Number of pages	5
Journal	Journal of Aircraft
Volume	20
Issue number	4
DOIs	https://doi.org/10.2514/3.44878
State	Published - Jul 1983

All Science Journal Classification (ASJC) codes

Aerospace Engineering

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10.2514/3.44878

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abstract = "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.",

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AB - 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.

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Friction damping of flutter in gas turbine engine airfoils

Abstract

All Science Journal Classification (ASJC) codes

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