Accession Number:

ADA106128

Title:

Development of the Automated AFAPL Engine Simulator Test for Lubricant Evaluation.

Descriptive Note:

Final technical rept. 1 May 78-1 Jan 81,

Corporate Author:

SOUTHWEST RESEARCH INST SAN ANTONIO TX MOBILE ENERGY DIV

Report Date:

1981-05-01

Pagination or Media Count:

104.0

Abstract:

A description of an automated gas turbine engine simulator, designated the AFAPL engine simulator, and a discussion of the test results obtained using the simulator are presented. The No. 4-5 bearing compartment areas of a J57 turbine engine are used as the basic hardware for the simulator. The simulator is driven by a variable-speed drive system, through the accessory drive gearbox, providing simulator mainshaft speeds up to 10,000 rpm. Electrical resistance heaters are used to heat the air surrounding the oil-wetted areas within the No. 4-5 bearing compartment areas. The temperatures, pressures, and rpm are automatically controlled at predetermined levels and monitored throughout the 9120-6000 rpm speed cycling sequences and the soakback periods by a Hewlett-Packard mini-computer system, which is also programmed to automatically draw 5-hr interval test-oil samples, control test-oil sump level, provide safety shut-off protection, as well as print out and plot test information generated during each individual test. Simulator results obtained on eight turbine engine lubricants, for which full-scale engine data are available, show a very good correlation of the deposit ratings obtained using the AFAPL engine simualtor and the deposit ratings from full-scale engine tests. Author

Subject Categories:

  • Lubricants and Hydraulic Fluids
  • Test Facilities, Equipment and Methods
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE