Topic #: OSD1998-021, A2002-161, AF2006-097
Sponsor: OSD (NAVAIR), Army & Air Force
Status: Two Phase II’s completed. In Phase I for Air Force.
Prototype flight tested on F-15. Seeking transition partners.
Need: On-board structural health monitoring of aircraft.
Operational Gap: No established method for composite monitoring aboard aircraft.
The DoD is moving toward Condition Based Maintenance based on Structural Health and Usage Monitoring Systems (CBM/HUMS) to maximize useful life of components while minimizing maintenance and downtime. Applications where weight and size are critical require small, powerful embedded systems that draw low power. LAHMP fulfills these needs and can perform a variety of functions including acquiring data from various COTS analog and digital sensors, signal conditioning, data analysis, storage, and wireless or wired communications. LAHMP is based on COTS, and is therefore highly configurable while conforming to industry and military standards.
In preparation for ground and flight tests aboard an Air Force F-15 E1, TRI’s Phase II SBIR team partner Boeing Phantom Works coordinated thermal, EMI/RFI, and G-force testing of LAHMP. LAHMP was operating during all tests, and none of the environmental extremes hampered LAHMP. Boeing then facilitated a ground test aboard the F-15 on 14 September 2006. LAHMP survived this test while maintaining full functionality, clearing the way for a flight test on September 26, 2006. LAHMP was fully functional throughout the flight test and collected structural health data on two bulkheads.