ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Structural damage often happens in rotating machinery such as steam engines, aircraftengines, and compressors due to the high-speed rotating of the shaft. The most common structuraldamages in rotating machinery are rotor shaft crack, rotor to stator rub, and bolts looseness and soon. In the present paper, the model based identification method is used to detect single structuraldamage such as crack, rotor to stator rub, pedestal looseness, and also, coupling fault such as rotorto stator rub and crack, crack and pedestal looseness. Utilizing the characteristic that equivalentloads of rub forces are internal forces, and the equivalent loads of the crack are external moments,the coupling faults of crack and rub-impact and crack and pedestal looseness are analyzed andexampled. The merit of the method is that it is an online diagnosis method, which provides earlywarning of machine failure. Theoretical simulation and laboratory testing are conducted to validatethe method
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.2289.pdf
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