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RESEARCH PAPERS

Engine Control Reliability and Durability Improvement Through Accelerated Mission Environmental Testing

[+] Author and Article Information
W. J. Davies

Pratt & Whitney, Engineering Division, West Palm Beach, FL

R. W. Vizzini

Naval Air Propulsion Center, Mechanical Components and Controls Division, Science and Technology Group, Trenton, NJ

J. Eng. Gas Turbines Power 109(2), 142-145 (Apr 01, 1987) (4 pages) doi:10.1115/1.3240016 History: Received January 10, 1986; Online October 15, 2009

Abstract

The integration of aircraft control systems for future weapon systems will require the engine control system to meet the mission reliability of the flight control system. This will be accomplished through system redundancy and verified by accelerated environmental testing. Combined environment reliability testing (CERT) will assure control system structural integrity and reliability growth of engine-mounted digital electronic controls. Pratt & Whitney, under contract to the U.S. Navy, has recently completed a 10,000-hr CERT program. Dual full authority digital electronic controls (FADEC), connected by a fiber optic data link, were subjected to environmental tests simulating a composite F-14 mission profile. The FADEC units were also exposed to periodic high vibration levels which would be experienced after foreign object damage and salt spray testing to simulate aircraft carrier environment. The test results are reported herein providing insight not only into the reliability and durability of digital electronic controls but also into the equipment and procedures required for testing of future military and commercial engine control systems.

Copyright © 1987 by ASME
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