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Demonstration of an elastically coupled twist control concept for tilt rotor blade application (1994)

Singleton, J. D. ; Wilbur, M. L. ; Nixon, M. W. ; [et al.]

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Publication Date: 2011-08-24

Description: The purpose of this Note is to present results from an analytic/experimental study that investigated the potential for passively changing blade twist through the use of extension-twist coupling. A set of composite model rotor blades was manufactured from existing blade molds for a low-twist metal helicopter rotor blade, with a view toward establishing a preliminary proof concept for extension-twist-coupled rotor blades. Data were obtained in hover for both a ballasted and unballasted blade configuration in sea-level atmospheric conditions. Test data were compared with results obtained from a geometrically nonlinear analysis of a detailed finite element model of the rotor blade developed in MSC/NASTRAN.

Keywords: AERODYNAMICS

Type: AIAA Journal (ISSN 0001-1452); 32; 7; p. 1549-1551

Format: text

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