THE HOT SECTION OF AIRCRAFT JET ENGINES

Award Information
Agency:
Department of Defense
Amount:
$52,006.00
Program:
SBIR
Contract:
N/A
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
Air Force
Award Year:
1986
Phase:
Phase I
Agency Tracking Number:
3894
Solicitation Topic Code:
N/A
Small Business Information
Ergo-tech Systems Inc
6937 Estepa Dr, Tujunga, CA, 91042
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 JOSE E CHIRIVELLA
 (818) 352-1759
Business Contact
Phone: () -
Research Institution
N/A
Abstract
ERGO-TECH PROPOSES TO THE U.S. AIR FORCE THE DEVELOPMENT OF AN ONBOARD INFORMATIONAL SYSTEM TO CONTINUOUSLY MONITOR IN FLIGHT THE PATTERN FACTOR OF THE TURBINE INLET TEMPERATURE (TIT) OF JET ENGINES. THE SYSTEM CONSISTS OF AN ARRAY OF LOW COST RUGGED MINIATURE ACOUSTIC TRANSDUCTERS MOUNTED ON THE HOT SECTION ENVELOPE OF THE ENGINE. THE SIGNALS FROM THESE SENSORS ARE INPUT INTO A MICROPROCESSOR WHERE THEY ARE SUBJECT TO A CAREFULLY SELECTED SET OF ALGORITHMS SUCH AS SELECTIVE BAND DIGITAL FILTERING, HIGH ORDER SPACE/TIME CROSS CORRELATIONS, AND NUMERICAL INVERSIONS. THE APPLICATION OF THESE TECHNIQUES RENDERS AN IMAGE OF THE SOURCE DISTRIBUTION OF THE COMBUSTION GENERATED NOISE. THE DISTRIBUTION IS TIGHTLY RELATED TO THE COMBUSTOR PATTERN FACTOR WHICH IS IN TURN THE PRIMARY DRIVER FOR THE DEGRADATION RATE OF THE ENGINE HOT SECTION. THE CONCEPT IS A COMPUTER IMPLEMENTATION OF THE PILOT'S OLD TECHNIQUE OF LISTENING TO HIS ENGINE!

* information listed above is at the time of submission.

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