Accession Number:

AD0869035

Title:

Rotor Aeroelastic Instability and Transient Characteristics

Descriptive Note:

Final rept.

Corporate Author:

UNITED TECHNOLOGIES CORP STRATFORD CT SIKORSKY AIRCRAFT DIV

Personal Author(s):

• Niebanck, Charles F.
• Bain, Lawrence J.

Report Date:

1970-02-01

Pagination or Media Count:

452.0

Abstract:

A dynamically scaled model rotor, 9 feet in diameter, was tested in an 18-foot wind tunnel. The purposes of the test included the determination of rotor transient response to sudden control inputs, the investigation of blade aeroelastic limits, and the generation of detailed dynamic data for the evaluation and improvement of theoretical calculations. The rotor was of a conventional articulated type. Author

Descriptors:

• *HELICOPTER ROTORS
• AERODYNAMIC CHARACTERISTICS
• AEROELASTICITY
• FLUTTER
• MODEL TESTS
• ROTOR BLADES(ROTARY WINGS)
• SCALE
• STABILITY
• WIND TUNNEL MODELS

Subject Categories:

• Aerodynamics
• Helicopters

Distribution Statement:

APPROVED FOR PUBLIC RELEASE