Implanted component faults and their effects on gas turbine engine performance

Journal Article · Wed Apr 01 00:00:00 EST 1992 · Journal of Engineering for Gas Turbines and Power; (United States)

DOI:https://doi.org/10.1115/1.2906567· OSTI ID:5052781

MacLeod, J D ^[1]; Taylor, V ^[2]; Laflamme, J C.G. ^[3]

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1. National Research Council, Ottawa, Ontario K1A 0R6 (CA)
2. Standard Aero Ltd., Winnipeg, Manitoba R3H 1A1 (CA)
3. Dept. of National Defence, Ottawa, Ontario K1K 0K2 (CA)

Under the sponsorship of the Canadian Department of National Defence, the Engine Laboratory of the National Research Council of Canada (NRCC) has established a program for the evaluation of component deterioration on gas turbine engine performance. The effect is aimed at investigating the effects of typical in-service faults on the performance characteristics of each individual engine component. The objective of the program is the development of a generalized fault library, which will be used with fault identification techniques in the field, to reduce unscheduled maintenance. To evaluate the effects of implanted faults on the performance of a single spool engine, such as an Allison T56 turboprop engine, a series of faulted parts were installed. For this paper the following faults were analyzed: (a) first-stage turbine nozzle erosion damage; (b) first-stage turbine rotor blade untwist; (c) compressor seal wear; (d) first and second-stage compressor blade tip clearance increase. This paper describes the project objectives, the experimental installation, and the results of the fault implantation on engine performance. Discussed are performance variations on both engine and component characteristics. As the performance changes were significant, a rigorous measurement uncertainty analysis is included.

• OSTI ID: 5052781
• Journal Information: Journal of Engineering for Gas Turbines and Power; (United States), Vol. 114:2; ISSN 0742-4795
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
GAS TURBINE ENGINES
FAULT TREE ANALYSIS
PERFORMANCE
CANADA
COMPRESSORS
FAILURES
INSTALLATION
MAINTENANCE
US DOE PROGRAM MANAGEMENT
DEVELOPED COUNTRIES
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MANAGEMENT
NORTH AMERICA
PROGRAM MANAGEMENT
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
330103* - Internal Combustion Engines- Turbine