Journal
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
Volume 29, Issue -, Pages 90-106Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2011.12.003
Keywords
Rotor stability; Tilting pad bearings; Modal testing
Categories
Funding
- ExxonMobil Research and Engineering
- Rotating Machinery Technology
- Dresser-Rand
- Petrobras
- A-C Compressor
- National Instruments and Cooper Cameron
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When predicting the stability of rotors supported by tilting pad journal bearings, it is currently debated whether or not the bearings should be represented with frequency dependent dynamics. Using an experimental apparatus, measurements of pad temperatures, unbalance response and stability are compared with modeling predictions for two tilting pad bearing designs. Predictions based on frequency dependent tilting pad bearing dynamics exhibited significantly better correlation with the stability measurements than those assuming frequency independent dynamics. (C) 2011 Elsevier Ltd. All rights reserved.
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