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Parameter identifications for a rotor system based on its finite element model and with varying speeds

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Abstract

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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Authors and Affiliations

  1. School of Mechanical Engineering and Automation, Northeastern University, 110004, Shenyang, China

    Qingkai Han, Hongliang Yao & Bangchun Wen

Authors
  1. Qingkai Han
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  2. Hongliang Yao
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  3. Bangchun Wen
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Corresponding author

Correspondence to Qingkai Han.

Additional information

The project was supported by the National Natural Science Foundation of China (50775028) and the Ministry of Science and Technology of China for the 863 High-Tech Scheme (2007AA04Z418).

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Han, Q., Yao, H. & Wen, B. Parameter identifications for a rotor system based on its finite element model and with varying speeds. Acta Mech Sin 26, 299–303 (2010). https://doi.org/10.1007/s10409-009-0324-9

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  • DOI: https://doi.org/10.1007/s10409-009-0324-9

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