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
Awards Year: 2012
Solicitation Year: 2010
Solicitation Topic Code: A10-169
Solicitation Number: 2010.3
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. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government