THERMAL SCIENCE

International Scientific Journal

NUMERICAL AND EXPERIMENTAL ASPECTS OF THERMALLY INDUCED VIBRATION IN REAL ROTORS

ABSTRACT
Temperature fields in electric energy generators may lead to mechanical dissbalance of an already balanced rotor. The author collected information in a number of steam power plants and confirmed the existence of the problem. This paper is presents the specific case of thermal deformation of the rotor, caused by an asymmetrical temperature field in scale of rotor. On the grounds of the relevant physical aspects, we propose a mathematical model identifying fields in a turbo generator rotor and suggest the optimum control by which the unwanted effects are eliminated.
KEYWORDS
PAPER SUBMITTED: 2011-03-14
PAPER REVISED: 2011-04-09
PAPER ACCEPTED: 2011-04-18
DOI REFERENCE: https://doi.org/10.2298/TSCI110314039J
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2011, VOLUME 15, ISSUE Issue 2, PAGES [545 - 558]
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