HELICOPTER SIMULATOR ROTOR DISK AND BLADE ELEMENT COMPARISON

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$50,000.00
Award Year:
1990
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
13463
Agency Tracking Number:
13463
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
3901 Centerview Dr, Chantilly, VA, 22021
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
J R Toler
(703) 478-2830
Business Contact:
() -
Research Institute:
n/a
Abstract
EARLY (1955-1970 VINTAGE) HELICOPTER OFTS USED SIMPLIFIED BLADE ELEMENT MATH MODELS FOR CALCULATING ROTOR FORCES AND MOMENTS. THE COMBINATION OF INACCURATE ASSUMPTIONS IN THE MODELS AND COST/ PERFORMANCE LIMITATIONS OF AVAILABLE COMPUTATIONAL SYSTEMS SOON FORCED DESIGNERS TO ABANDON THE BLADE ELEMENT APPROACH IN FAVOR OF OVERALL ROTOR DISK MODELLING TECHNIQUES. TODSY'S INEXPENSIVE, YET MORE POWERFUL MICROPROCESSORS, OFFER THE OPPORTUNITY OF RECONSIDERING THE BLADE ELEMENT APPROACH WITHOUT RETENTION OF THE INACCURATE ASSUMPTIONS AND WITHOUT SEVERE COST PENALTY. THIS COULD PROVIDE A SIGNIFICANT ENHANCEMENT IN THE FIDELITY OF STATIC AND DYNAMIC ROTOR/MODELLING, COMPARED TO THE BEST THAT CAN BE DONE USING OVERALL ROTOR CALCULATIONS. QUINTRON'S ROTATING BLADE ELEMENT MODEL WILL BE RETROFITTED ON TWO USMC CH-53E OFTS, THEREBY OFFERING AN IDEAL OPPORTUNITY FOR COMPARISON OF PERFORMANE WITH THE EXISTING OVERALL ROTOR MODEL. BOTH MODELS WILL HAVE BEEN VALIDATED BY TEST PILOTS FROM NATC PATUXENT RIVER AND ACCEPTED BY THE NAVAL TRAINING SYSTEMS CENTER.

* information listed above is at the time of submission.

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