Open AccessAircraft gas turbine engine vibration diagnostics
Author(s) -
Stanislav Fábry,
Marek Češkovič
Publication year - 2017
Publication title -
mad-magazine of aviation development
Language(s) - English
Resource type - Journals
ISSN - 1805-7578
DOI - 10.14311/mad.2017.04.04
Subject(s) - airworthiness , vibration , gas turbines , turboprop , automotive engineering , aviation , turbine , propulsion , engineering , turbojet , aeronautics , mechanical engineering , aerospace engineering , computer science , acoustics , physics , certification , political science , law
In the Czech and Slovak aviation are in service elderly aircrafts, usually produced in former Soviet Union. Their power units can be operated in more efficient way, in case of using additional diagnostic methods that allow evaluating their health. Vibration diagnostics is one of the methods indicating changes of rotational machine dynamics. Ground tests of aircraft gas turbine engines allow vibration recording and analysis. Results contribute to airworthiness evaluation and making corrections, if needed. Vibration sensors distribution, signal recording and processing are introduced in a paper. Recorded and re-calculated vibration parameters are used in role of health indicators.