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Physics Based Gear Health Prognosis via Modeling Coupled with Component Level…

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
83418
Program Year/Program:
2007 / STTR
Agency Tracking Number:
N074-010-0349
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
VEXTEC Corporation
PO Box 2287 Brentwood, TN 37024-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: Physics Based Gear Health Prognosis via Modeling Coupled with Component Level Tests
Agency / Branch: DOD / NAVY
Contract: N00014-07-M-0444
Award Amount: $69,999.00
 

Abstract:

PHM investments can successfully diagnose up to 70% of damage fault indications. The cost of empirically-based testing is very high and must be reworked for every gear system design change. Physics-based FEA combined with long crack modeling can be self-adapting and overcome the high cost of pure statistical approaches but still unable to diagnose the remaining 30% failures because onset of damage is too small and happens too quickly. VEXTEC has already developed techniques for modeling damage at the fundamental microstructural level which will uniquely be applied to gear system PHM under this STTR. The modeling properties include geometry, composition, material characteristics, case hardness, core hardness, case depth, design ratios of case to tooth thickness, surface finish, and machining are directly and explicitly addressed in the formulation of the micromechanical material model. The objective of this STTR is to develop physics-based failure models to allow for explicit prognosis of air vehicle gear components and systems. This project provides for successful modeling of the effects of tooth bending, spalling, and pitting to advance the understanding of these failure modes as a critical and new approach to aerospace application prognosis.

Principal Investigator:

Richard Holmes
Director M&S
6153720299
Rholmes@vextec.com

Business Contact:

Loren Nasser
President/CEO
6153720299
Lnasser@vextec.com
Small Business Information at Submission:

VEXTEC CORP.
750 Old Hickory Blvd, Building 2, Suite 270 Brentwood, TN 37027

EIN/Tax ID: 582529317
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
PURDUE UNIV.
315 North Grant Street
West Lafayette, IN 47907-2023
Contact: Thomas Farris
Contact Phone: (765) 494-5118
RI Type: Nonprofit college or university