Absolute and relative vibration inconsistencies in dynamic analysis of high power turbogenerator rotating system

• Autorzy: Barzdaitis V. , Jonušas R. , Didžiokas R. , Barzdaitis V. V.
• Konferencja: Diagnostics'04, III Międzynarodowy Kongres Diagnostyki Technicznej (6-9 września 2004, Poznań, Polska)
• Języki publikacji: EN

Abstrakty

EN

The paper presents the research results of machine condition monitoring and fault diagnostics of the High Power Steam Turbines and Electric Generator rotating system. The inconsistencies of journal bearings absolute vibration parameters of the rotating system and journal bearings shafts relative vibration parameters have been shown. In the low frequency range the shafts relative vi-bration displacements are decisive informative in defects diagnostics. The journal bearings sup-ports absolute vibration velocities of low frequencies are being strongly damped by massive bear-ings supports, etc. Journal bearings absolute vibration parameters supply the information errone-ously attributed to the rotor. High frequency absolute vibration acceleration, however, make it possible to provide monitoring of coupling.

Słowa kluczowe

EN

steam turbines; electric generator; journal bearings; absolute and relative vibration

PL

turbiny parowe; generator prądu elektrycznego; łożyska ślizgowe

• Wydawca: Polskie Towarzystwo Diagnostyki Technicznej
• Czasopismo: Diagnostyka
• Rocznik: 2004
• Tom: Vol. 30, T. 1
• Strony: 45--52
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Barzdaitis V.

• Kaunas University of Technology. Faculty of Mechanical Engineering Mickevičiaus St. 37, LT-44244, Kaunas, Lithuania

autor

Jonušas R.

• Kaunas University of Technology. Faculty of Mechanical Engineering Mickevičiaus St. 37, LT-44244, Kaunas, Lithuania

autor

Didžiokas R.

• Klaipeda University Faculty of Marine Engineering Bijunu St. 17, Klaipeda, Lithuania

autor

Barzdaitis V. V.

• Vytautas Magnus University Computer Science Department Vileikos St. 8, Kaunas, Lithuania

Bibliografia

• [1] Bently Donald E. Fundamentals of Rotating Machinery Diagnostics. Library of Congress Control Number 2002094136, ISBN 0-9714081-0-6. Bently Pressurized Bearing Company, printed in Canada, 2002. 726 p.
• [2] Childs, D. Turbomachinery Rotordynamics. Phenomena, Modeling & Analysis. - New York: John Wiley & Sons, Inc., printed in USA, 1993.-476 p.
• [3] Goldin A. S. Vibracija Rotornich Mashin (in Russian). - Moskva, Mashinostroenije, 1999. -344 p.
• [4] Barzdaitis V. ýinikas G. Monitoring and diagnostics of Rotor Machines (in Lithuanian). - Kaunas: Technologija, 1998.-364 p.
• [5] Barzdaitis V., Barzdaitis V.V., Didžiokas R., Pocius Z. Inconsistence of Absolute and Relative Vibration in Rotors Diagnostics. Mechanika. ISSN 1392-1207.-Kaunas: Technologija, 2003, Nr.3 (41), p. 48-54.