Fatigue Crack Initiation Prediction Tool for Rotorcraft Spiral Bevel Gears

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911W6-12-C-0020
Agency Tracking Number: A2-4877
Amount: $729,776.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: A10-169
Solicitation Number: 2010.3
Solicitation Year: 2010
Award Year: 2012
Award Start Date (Proposal Award Date): 2012-01-27
Award End Date (Contract End Date): N/A
Small Business Information
850 Energy Drive, Suite 307, Idaho Falls, ID, -
DUNS: 089822014
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Raja Pulikollu
 Principal Investigator
 (937) 241-1144
Business Contact
 Kris D'Antoni
Title: Contracts Administrator
Phone: (208) 522-8560
Email: kdantoni@sentientscience.com
Research Institution
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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