Accession Number : ADA193754

Title :   A Center for Excellence for Rotary Wing Aircraft Technology.

Descriptive Note : Final rept. 1 Jul 82-31 Dec 87,

Corporate Author : GEORGIA INST OF TECH ATLANTA SCHOOL OF AEROSPACE ENGINEERING

Personal Author(s) : Gray, R. B. ; Schrage, D. P. ; Craig, J. I. ; Hanagud, S. V. ; Klein, S. S.

Report Date : 25 FEB 1988

Pagination or Media Count : 51

Abstract : During the course of this contract the following research tasks were undertaken: A. Aerodynamics tasks which included Experimental Studies for Tip Vortex Core Modeling, Modification of Blade Tip Loading to Improve Hovering Figure of Merit, Prediction of Flow Around Blade Tips, Studies of Unsteady Rotor Aerodynamics and Studies of the Airframe Flowfield in Forward Flight. B. Structure tasks which included Structural Dynamic System Indentification, Crashworthy Characteristics of Composite Rotorcraft Structures and Concepts for Stability Critical Airframe Structures. C. Aeroelasticity tasks which included Helicopter Vibration Suppression Techniques and Rotorcraft Aeroelastic Active Control Investigations. Keywords: Rotary wing aircraft; Rotor dynamics; Structural dynamics; Helicopters; Center of Excellence.

Descriptors :   *HELICOPTERS, AERODYNAMIC CHARACTERISTICS, AERODYNAMICS, AEROELASTICITY, AIRFRAMES, BLADES, COMPOSITE STRUCTURES, CORES, CRASHWORTHINESS, DYNAMICS, EXPERIMENTAL DATA, FLOW, FLOW FIELDS, HOVERING, LEVEL FLIGHT, MODELS, PREDICTIONS, ROTARY WING AIRCRAFT, ROTORS, STABILITY, STRUCTURAL PROPERTIES, STRUCTURES, SUPPRESSION, UNSTEADY FLOW, VIBRATION, VORTICES, ROTOR BLADES(ROTARY WINGS), AERODYNAMIC LOADING, AIR FLOW, FLOW FIELDS, STRUCTURES.

Subject Categories : Helicopters

Distribution Statement : APPROVED FOR PUBLIC RELEASE