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

PDF Url : ADA189366

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