Strategic Monitoring of Spacecraft Mechanical Parts Assemblies

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: FA8650-04-M-5051
Agency Tracking Number: B045-022-0120
Amount: $99,911.00
Phase: Phase I
Program: STTR
Awards Year: 2004
Solicitation Year: 2004
Solicitation Topic Code: MDA04-T022
Solicitation Number: N/A
Small Business Information
850 Energy Drive, Suite 307, Idaho Falls, ID, 83401
DUNS: 089822014
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Sean Marble
 President
 (208) 522-8560
 smarble@sentientscience.com
Business Contact
 Sean Marble
Title: President
Phone: (208) 522-8560
Email: smarble@sentientscience.com
Research Institution
 Purdue University
 Farshid Sadeghi
 Mechanical Engineering, 585 Purdue Mall
West Lafayette, IN, 47907
 (765) 494-5719
 Nonprofit college or university
Abstract
Lubrication problems in rolling element bearings are the leading cause of failure in spacecraft momentum/reaction wheels, control moment gyros, gimbals, and similar applications. Condition monitoring technologies developed for terrestrial or aircraft applications are not adequate due to unique spacecraft conditions and the need to prevent rather than just detect damage. Sentient Corporation, in collaboration with Purdue University and The Aerospace Corporation, will develop and implement a Spacecraft Bearing Health Management (SBHM) system that will identify early stage lubrication problems, administer corrective actions (quantity and timing of lubricant application), and accurately predict remaining life. During Phase I, innovative sensing technologies developed for a closely related project will be utilized alongside traditional sensing parameters to identify optimal combinations for monitoring lubrication effectiveness. An extensive experimental program will be conducted using an existing bearing test rig that emulates a satellite momentum/reaction wheel. During Phase II, a prototype SBHM system will be installed on the test rig along with a working lubricant micro-applicator to demonstrate proper control of lubrication under all conditions. Opportunities for space flight testing and evaluation will also be explored.

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

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