Effect of phase angle on multibladed rotor flutter

V. R. Murthy; G. A. Pierce

doi:10.1016/0022-460X(76)90461-2

Effect of phase angle on multibladed rotor flutter

V. R. Murthy, G. A. Pierce

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

2 Scopus citations

Abstract

A theoretical technique for predicting the flutter characteristics of a helicopter rotor is presented. The effect of phase angle on flutter speed of a two-bladed rotor in hovering and axial flight is determined. For this purpose, a uniform and untwisted rotor blade with coupled flapwise bending and torsional degrees of freedom is considered. The transmission matrix method is used to obtain the natural vibration characteristics of the system. An unsteady aerodynamic theory is used to obtain the aerodynamic loading in compressible flow.

Original language	English (US)
Pages (from-to)	221-234
Number of pages	14
Journal	Journal of Sound and Vibration
Volume	48
Issue number	2
DOIs	https://doi.org/10.1016/0022-460X(76)90461-2
State	Published - Sep 22 1976
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Acoustics and Ultrasonics
Mechanical Engineering

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10.1016/0022-460X(76)90461-2

Cite this

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abstract = "A theoretical technique for predicting the flutter characteristics of a helicopter rotor is presented. The effect of phase angle on flutter speed of a two-bladed rotor in hovering and axial flight is determined. For this purpose, a uniform and untwisted rotor blade with coupled flapwise bending and torsional degrees of freedom is considered. The transmission matrix method is used to obtain the natural vibration characteristics of the system. An unsteady aerodynamic theory is used to obtain the aerodynamic loading in compressible flow.",

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AU - Pierce, G. A.

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AB - A theoretical technique for predicting the flutter characteristics of a helicopter rotor is presented. The effect of phase angle on flutter speed of a two-bladed rotor in hovering and axial flight is determined. For this purpose, a uniform and untwisted rotor blade with coupled flapwise bending and torsional degrees of freedom is considered. The transmission matrix method is used to obtain the natural vibration characteristics of the system. An unsteady aerodynamic theory is used to obtain the aerodynamic loading in compressible flow.

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ER -

Effect of phase angle on multibladed rotor flutter

Abstract

ASJC Scopus subject areas

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