SELF-TUNING ADAPTIVE CONTROL OF FORCED VIBRATION IN ROTOR SYSTEMS USING AN ACTIVE JOURNAL BEARING
✍ Scribed by L. Sun; J.M. Krodkiewski; Y. Cen
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 279 KB
- Volume
- 213
- Category
- Article
- ISSN
- 0022-460X
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✦ Synopsis
A multivariable self-tuning adaptive controller was developed to control forced vibration of rotor systems incorporating a new type of active journal bearing. The adaptive control algorithm enables the controller to cope with non-linearity, parameter variation with time and parameter uncertainty in rotor-bearing systems. The control algorithm requires no pre-knowledge of system parameters and imbalance distribution. This is especially significant in applications with complex rotor systems supported on fluid-film bearings. The controller enables the system to retain a desired equilibrium position and at the same time reduces vibration about the equilibrium position. A pre-identification procedure was introduced before the self-tuning loop to determine the order of the controller, the time delay of the system, and to accelerate the controller tuning process. The control algorithm is presented quite generally. It may be used as a general procedure in the applications of active vibration control in rotating machinery.