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| Calculation of transient response of a rotor supported by tilting pad journal bearings |
| Revised:April 28, 1997 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx19991016 |
| KeyWord:tilting pad journal bearings,rotor systems,transient response,oil film force database, precise integration method |
| Jiang Peilin \ \ Yu Lie |
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| Abstract: |
| The computing technique of the transient response of a rotor system supported by til ting padjournal bearings is investigated in this paper. A database aided method to calculate the nonlinear forces of tilting pad journal bearings is firstly presented. With the structure and motion parameters of the pads and the journal integrated into three parameters, a database of tilting pad forces is set up. The forces and moment under a certain combination of motion parameters can be obtained by accurate interpolation. This method can ensure the same precision as that of numerical methods with the computer time decreasing at several hundreds times. The precise integration method is modified and then introduced into the transient response calculation for a rotor system. This method is unconditionally stable. With this method, the precise solution of the homogenous part can be obtained. The method proposed in this paper can compete with the existent methods in calculating the transient response of a rotor system supported by tilting pad journal bearings. |
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