In-Service Aircraft Transmission Life Modeling for Improved Flight Safety

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNC04CA36C
Agency Tracking Number: 034200
Amount: $69,522.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: A1.02
Solicitation Number: N/A
Small Business Information
1801 East 9th Street #1111, Cleveland, OH, 44114-3103
DUNS: 09760
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Richard Klein
 Principal Investigator
 (216) 696-5157
Business Contact
 Richard Klein
Title: President
Phone: (216) 696-5157
Research Institution
It is proposed to develop an accurate, in-service transmission life-estimation system for the prediction of remaining component and system life for a helicopter transmission system. Once proven in the helicopter environment, this life-estimation system will be of use to a wide variety of airborne and land-based transmission systems. Its use will improve the safety and reduce the maintenance costs of the monitored systems. The transmission-life estimating system will include three separate algorithms: an in-flight service monitoring algorithm, a pre-flight and post-flight transmission analysis algorithm, and a component-life tallying algorithm. The in-flight service monitor will treat the transmission as a whole in response to sampling data of mast torque and speed. The transmission analysis algorithm will determine the transmission's operating parameters from those of its components. It also will determine the life and reliability of the individual components based on the service monitoring algorithm's output. The component-life algorithm will accumulate life and reliability tables. The Phase I effort will develop the life-monitoring and supporting life-estimation and reliability algorithms. In the Phase II effort, the full life-estimating system will be assembled and tested with a helicopter main-rotor transmission.

* Information listed above is at the time of submission. *

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