RELIABILITY BASED INSPECTION TECHNIQUES OF TURBOJET ENGINE COMPRESSOR BLADES
Mots-clés :
reliability, fatigue, mean life, inspections, blade compressor, turbojet engineRésumé
In terms of jet engine integrity, the role of the blades is fundamental. The blades exist in a large number of elements in the structure of aviation engines, being altogether the most stressed items, in this case being justifie the study of the factors that determine defects and directly influences the strength and resource of the blades. In this paper there were studied ten of compressor blades, in the jet engines’ structure, at the fatigue stress using degradation tests. Using experimental data, were determined and plotted the main indicators of reliability using inspection times and length of blade cracks. Through rigorous determination of the reliability indicators and of the average lifetime of the compressor blades it can increase the blade resource through preventive inspections at pre-set time dates and detect possible damage caused in service.
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