Journal
ACTA MECHANICA SINICA
Volume 26, Issue 2, Pages 299-303Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10409-009-0324-9
Keywords
Rotor system; Finite element model; Parameter identification; Model validation
Categories
Funding
- National Natural Science Foundation of China [50775028]
- Ministry of Science and Technology of China [2007AA04Z418]
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In order to achieve prediction for vibration of rotating machinery, an accurate finite element (FE) model and an efficient parameter identification method of the rotor system are required. In this research, a test rig is used as a prototype of a rotor system to validate a novel parameter identification technique based on an FE model. Rotor shaft vibration at varying operating speeds is measured and correlated with the FE results. Firstly, the theories of the FE modelling and identification technique are introduced. Then disk unbalance parameter, stiffness and damping coefficients of the bearing supports on the test rig are identified. The calculated responses of the FE model with identified parameters are studied in comparison with the experimental results.
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