Fatigue Crack Initiation Prediction Tool for Rotorcraft Spiral Bevel Gears

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$729,776.00
Award Year:
2012
Program:
SBIR
Phase:
Phase II
Contract:
W911W6-12-C-0020
Agency Tracking Number:
A2-4877
Solicitation Year:
2010
Solicitation Topic Code:
A10-169
Solicitation Number:
2010.3
Small Business Information
Sentient Corporation
850 Energy Drive, Suite 307, Idaho Falls, ID, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
089822014
Principal Investigator:
Raja Pulikollu
Principal Investigator
(937) 241-1144
rpulikollu@sentientscience.com
Business Contact:
Kris D'Antoni
Contracts Administrator
(208) 522-8560
kdantoni@sentientscience.com
Research Institution:
Stub




Abstract
Current gearbox life estimation techniques commonly underplay the significance of gear tooth surface fatigue due to the complexity of the phenomenon involved. The Phase I program successfully demonstrated the feasibility of utilizing advanced modeling techniques to predict the onset and propagation of surface and bending fatigue in spiral bevel gears, including an analysis of mixed-elastohydrodynamic lubrication and damage accumulation in the material. Phase II will build on this success by developing these models into a complete gear life analysis, including a comprehensive graphical user interface for model construction and analysis control. Extensive verification of the models will ensure accuracy of the results. The completed software will provide analysts with a tool to predict the life of helicopter spiral bevel gears.

* information listed above is at the time of submission.

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