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Non-intrusive Acoustic Measurement of High Cycle Fatigue in Gas Turbine Engines

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
69918
Program Year/Program:
2004 / SBIR
Agency Tracking Number:
N041-009-1058
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
TECHNOLOGY IN BLACKSBURG, INC.
265 Industrial Drive Christiansburg, VA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2004
Title: Non-intrusive Acoustic Measurement of High Cycle Fatigue in Gas Turbine Engines
Agency / Branch: DOD / NAVY
Contract: N00421-04-P-0783
Award Amount: $69,992.00
 

Abstract:

Techsburg proposes to explore and demonstrate an innovative approach for non-intrusive sensing of rotor blade vibrations using microphone pressure sensors imbedded into the casing of a gas turbine aero-engine. This non-intrusive sensing strategy is intended to serve an engine health management system capable of monitoring blade material conditions as it pertains to high cycle fatigue (HCF). In this Phase I work, an array of microphones is to be distributed throughout the engine casing to detect the acoustic pressure waves elicited by forced blade vibrations. A proof-of-concept experiment will be performed at the Stage Matching Investigation (SMI) rig at the Compressor Aerodynamic Research Laboratory (CARL) of AFRL in Dayton, Ohio. The casing-mounted microphone signals will be correlated to the on-blade strain measurements in order to develop this non-intrusive blade vibration sensing technique. Phased-array signal processing techniques will be used to provide a high SNR indicator of the rotor blade vibration amplitudes. Then in Phase II of this work, an array of low-cost micro-electromechanical systems (MEMS) pressure sensors will be used to demonstrate a more flight-worthy software/hardware package capable of detecting blade vibrations real-time.

Principal Investigator:

Stephen Guillot
Vice President of Enginee
5409614401
sguillot@techsburg.com

Business Contact:

Tamara Murray
Business Manager
5409614401
tmurray@techsburg.com
Small Business Information at Submission:

TECHNOLOGY IN BLACKSBURG, INC.
2901 Prosperity Rd Blacksburg, VA 24060

EIN/Tax ID: 311582371
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No