Accession Number : ADA189366
Title : Hydraulic Diagnostics and Fault Isolation Test Program.
Descriptive Note : Final rept. Sep 84-Jul 86,
Corporate Author : GRUMMAN CORP BETHPAGE NY AIRCRAFT SYSTEMS DIV
Personal Author(s) : Marino, Paul
Report Date : 13 Feb 1987
Pagination or Media Count : 59
Abstract : The hydraulic diagnostic and fault isolation test program investigated the feasibility of detecting and isolating a hydraulic failure in order to prevent loss of the entire system. Isolation valves were installed as a means of separating the subsystems from the main system. Various sensors were used to detect change in flow, temperature, pressure and reservoir level. The sensor information was fed to a microprocessor which compared the information to known parameters. In the event of failure detection, a signal was transmitted to the appropriate subsystem isolation valve which then shut off the subsystem from the main system.
Descriptors : *DIAGNOSIS(GENERAL) , *FAULTS , *HYDRAULICS , *HYDRAULIC EQUIPMENT , DETECTION , DETECTORS , FAILURE , FEASIBILITY STUDIES , ISOLATION , LEVEL(QUANTITY) , RESERVOIRS , VALVES , FAILURE(MECHANICS) , HYDRAULIC VALVES , MICROPROCESSORS
Subject Categories : Hydraulic and Pneumatic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE