Details

Autor(en) / Beteiligte

• Deckler, D.C.
• Veillette, R.J.
• Braun, M.J.
• Choy, F.K.

Titel

Modeling and control design for a controllable bearing system

Ist Teil von

• Proceedings of the 39th IEEE Conference on Decision and Control (Cat. No.00CH37187), 2000, Vol.4, p.4066-4071 vol.4

Ort / Verlag

IEEE

Erscheinungsjahr

2000

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE Xplore

Beschreibungen/Notizen

• This paper introduces the application of a linear-quadratic regulator to a controllable tilting-pad bearing system to reduce the vibration in a rotating machine. This application first requires a nonlinear transient simulation of the bearing to determine the stiffness and damping coefficients associated with each pad of the bearing at a given equilibrium position. The stiffness and damping coefficients are incorporated into a linear state-variable model, and a state-feedback control law is computed to minimize a quadratic performance index. The performance index parameters are adjusted to produce a suitably regulated shaft orbit in the nonlinear simulation. The results represent a significant step toward the application of feedback control to an experimental bearing system.