Acoustic Emission Monitor for Drive System Coupling Crack Detection

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-04-C-0202
Agency Tracking Number: N031-0180
Amount: $690,267.00
Phase: Phase II
Program: SBIR
Awards Year: 2005
Solicitation Year: 2003
Solicitation Topic Code: N03-029
Solicitation Number: 2003.1
Small Business Information
195 Clarksville Road, Princeton Jct., NJ, 08550
DUNS: 092340132
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Valery Godinez
 Group Leader
 (609) 716-4055
 Vgodinez@pacndt.com
Business Contact
 Richard Finlayson
Title: Director
Phone: (609) 716-4026
Email: Rfinlayson@pacndt.com
Research Institution
N/A
Abstract
The objective of this Phase II program is to develop a prototype system to detect and evaluate cracking signals in real time under operational conditions from diaphragm couplings in aircraft, in particular those found in the V-22 helicopter. The Phase II project includes extensive data acquisition runs concentrated on the large 9” diaphragms couplings specifically from hanger bearing #1 on the V-22’s rotating wing. These activities will be performed at Bell Helicopter test cell 202 spin rig, and in close cooperation with Bell’s personnel. Data will be acquired using both damaged and undamaged diaphragm couplings. These data will be used to develop a signal classifier capable of discriminating between signals from undamaged and damaged couplings. In parallel with the data acquisition activities, PAC will carry out the development of the prototype system software, in which the classifier will be incorporated, and PAC’s Engineering department will modify existing PAC hardware to satisfy the requirements for the prototype system. The complete AE cracking detection prototype system, hardware and classifying software, will be validated on Bell’s spin rig or, if available, during a V-22 helicopter ground run. The complete Phase II program will be completed within a 24 months time frame.

* Information listed above is at the time of submission. *

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