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Online Real-Time Tribology Failure Detection System

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2008 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Migma Systems Inc.
1600 Providence Highway Walpole, MA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2008
Title: Online Real-Time Tribology Failure Detection System
Agency: NASA
Contract: NND08AA57C
Award Amount: $599,997.00


Under NASA Phase I funding, we have developed a system for the ball bearing fault detection and identification. Our system can effectively identify multiple fault modes related to the evolution of friction within the contact in the coated ball bearings. To detect bearing faulty modes, we have developed a new bispectrum and entropy analysis method to capture the faulty transient signals embedded in the measurements. To classify the fault modes, we further developed a set of stochastic models using hidden Markov model (HMM) and Gaussian mixtures. Test results using lab experiment data have shown that our system can identify coated ball bearing fault modes in near real-time. In Phase II, we will further develop and test our system developed in Phase I for spacecraft mechanical parts health monitoring and mitigating actions. A thorough understanding of the failure mechanisms of the moving parts will emerge by the end of the Phase II effort, as well as the methodology to prevent catastrophic failure while in orbit. Algorithms developed in Phase I/II will be implemented in C/C++. Effort will be focused on the accuracy, autonomous, speed and efficiency of the system. The Boeing Company has teamed with us for Phase II effort.

Principal Investigator:

Bo Ling
Principal Investigator

Business Contact:

Bo Ling
President & CEO
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 6413
Contact Phone: (225) 578-9192
RI Type: Nonprofit college or university