Tilt Rotor Performance Enhancement Through Variable Twist Control

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$614,984.00
Award Year:
1996
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
26508
Agency Tracking Number:
26508
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
P.o. Box 3073, Princeton, NJ, 08543
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Todd R. Quackenbush
(609) 734-9282
Business Contact:
() -
Research Institute:
n/a
Abstract
Tilt rotor aircraft are required to operate in flight conditions ranging from hover and low speed edgewise flight to high speed cruise. It is not possible to achieve optimal performance in all flight conditions with rotor blades with a fixed twist distribution. The goal of this project is to conduct a design assessment of variable twist rotor systems that will allow in-flight adjustment of blade twist. Newly developed rotor design optimization software will be used to determine performance characteristics and optimum twist distributions for representative tilt rotor flight conditions and to quantify the required amount and distribution of the variable twist. Implementation of a variable twist capability will be explored using recent developments in advanced actuation technology, including shape memory design concepts involving variable twist more readily relaizable. The candidate rotor blade designs will be evaluated with input from experienced tilt rotor design personnel from industry to ensure that the final variable twist system can meet realistic performance, structural, and manufacturability criteria. The end result will be a variable twist rotor blade design well suited for detailed simulation and assessment in Phase II.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government