Some aspects of vibration control. Part II: An optimal active controller.

• Autorzy: Kosowski K.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a theoretical method for determining the optimal correction to be introduced in a mechanical system. The active control of harmonic vibrations may be achived by applying a control unit which ought to reduce the vibration amplitude of the selected elements of the system. The proposed method makes it possible to determine the controller parameters which provide an optimum value of the chosen quality index. This criterion includes the reduction of weighted amplitudes of the elements on the one hand, and minimizes energy of the control signal on the other. The described method is suitable for determination of an optimum controller of turbine rotor vibrations caused by bearing oil whip, bearing oil whirl or aerodynamic forces. For the case of rotor self-excited vibrations of aerodynamic type the linear model of excitations was compared with the neural network method.

Słowa kluczowe

EN

active control; mechanical vibrations; optimal controller

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2005
• Tom: nr 1
• Strony: 28--31
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Kosowski K.

• Kosowski Faculty of Ocean Engineering and Ship Technology, Gdańsk University Technology, Narutowicza 11/12, 80-952 Gdańsk, Poland

Bibliografia

• 1. Gawroński W., Kosowski, K.: On complex gradient matrices (in Polish). Institute of Fluid Flow Machinery, Polish Academy of Sciences. Report No. 19/1983
• 2. Krzemiński A., Kosowski K.: A matrix model of mechanical system control (in Polish). International Symposium on Automatic Control of Ship Propulsion and Ocean Engineering Systems. Gdańsk, 1994
• 3. Vetter W. J. : Matrix calculus operations and Taylor Expansions. SIAM (Society for Industrial and Applied Mathematics) Review. Vol.15, No.2/1973
• 4. Kosowski K., Gawroński W.: Active control of mechanical system vibrations (in Polish). Mechanika. Proceedings of Rzeszów Technical University. Vol.13/1983
• 5. Kosowski K.: Some aspects of vibration control. Part I : Active and passive correction. Polish Maritime Research, No.4/2004

Uwagi

Part I: "Active and passive correction" was published in No. 4/2004 of this journal