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Online Real-Time Tribology Failure Detection System

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2006 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Migma Systems Inc.
1600 Providence Highway Walpole, MA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2006
Title: Online Real-Time Tribology Failure Detection System
Agency: NASA
Contract: NND06AA37C
Award Amount: $100,000.00


The investigation of the coating friction as a function of time is important to monitor the ball bearing heath. Despite the importance of the subject mater, there is a crucial lack of information in the literature about coating life and friction force in ball bearings as coating wear of progressively increases. Here we propose to develop a strategic space vehicle health monitoring system that will identify potential and/or imminent lubrication problems, analyze these parameters in real time, and provide direct input so that these problems are mitigated prior to failure. We will set up a lab experiment environment with a universal microtribometer and acoustic emission sensors measuring the signals associated with wear and the changes that tend to occur as a function of time. Friction force and acoustic signal will be measured with respect to the bearing condition. To capture the dynamic nature of friction evolution, we propose to extract the temporal transient features from the sensing data and develop Hidden Markov Models with four distinct states associated with four operation conditions of the ball bearing. Our system uniquely combine both physics-based and stochastic models for the online diagnosis.

Principal Investigator:

Bo Ling
Principal Investigator

Business Contact:

Bo Ling
Business Official
Small Business Information at Submission:

Migma Systems, Inc.
1600 Providence Highway Walpole, MA 02081

EIN/Tax ID: 460488542
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Louisiana State University
Department of Mechanical Engineering
Baton Rouge, LA 70803
Contact: James L. Bates
Contact Phone: (225) 578-9192
RI Type: Nonprofit college or university