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Controllable squeeze film damper bearing robust H ^ ∞ active rotor system vibration control


Balance response. Figure 4 (a), (b) and (c) below,[link widoczny dla zalogowanych], respectively, disc,[link widoczny dla zalogowanych], bearing 1 and 2 support the imbalance response. Practice is common SFDB system, dashed lines are CSFDB system. CSFDB axial movement amount of a frequency response of active regulation in Figure 4 (d) below. Numerical results show that active regulation scheme using CSFDB the steady-state unbalance response of rotor system at the resonance peak was significantly reduced, turn 74 in the work of Vibration Engineering Vol 9-speed range can be run smoothly and effectively eliminate the bistable state hopping phenomenon. Thus, the proposed scheme is the main j Kui effective and feasible. References 1 Gu Liu, eds. Rotor dynamics. National Defence Industry Press, Beijing t 2 Gu Liu, Qiang. Controllable Squeeze Film Bearing vibration active control of rotor system. Journal of Applied Mechanics, 1990} 7 (2) 41 - 473FrancisBA. AcourseinHacontroltheory. Springer-Verlag, NewYork,[link widoczny dla zalogowanych], 19874DoyleJC. eta1. State-spacesolutiontostandardI'VandHcontrolproblem. IEEETram. Auto. Con-trol, 1989I34 ( :831-8575 剂 Yong, Liu Xian home. Robust H rotor dynamic system control. Vibration Engineering, 1994} 7 (3); 251-2566 agent Yong. Aircraft engine rotor active vibration control of H Lu holding. PhD thesis, Northwestern Polytechnical University, 1993ActiveRobustH. . ControlforVibrationofRotorSystembyControlledSqueezeFilmDamperBearing workers Yong'GuJialiu-ZhuJun '· (LubrkatonTheoryandBearingInstRue, XianJieotengUniversityXian. 710049) * (Rease ~ chInstituteofVibrationEngineer / ng, NorthwesternPolytechnicUniversity Ⅺ an.710072) Al ~ tractOnthebasisoftheactivecontrolforoeschemebyControlledsqueezeFilmDamperBearing (CSFDB) inthispaper, thenonHnearoilfilmfoI. ceisusedtoapproachtotheoptima1controIforcethelinearrotorsystemgraduallysothatthevibrationofrotorsystemisrejectedactivelybyCSFDB. Spe. ciaIconsiderationisgiventotheattenuation0f. Bleed at the nose helanceresponseandthenonsensiti ~ tyforstructera】 un. certainty111therotorsystemamongHcontroldesign. Meanwhile, themechanismofavoidingbistablejumpphenomenonofrotorC. 5FDBsystemisdiscusseddeterminately. TheresultsshowsthattheactivecontroIschemeandthecontroIprincipleinthispaperarefeasibleandeffective. Keywerds: rotordynamicsIHrobustcontrol; SFDB,[link widoczny dla zalogowanych], structuralparameteruncertaintyi agent first author Yong M,[link widoczny dla zalogowanych], postdoctoral students in October 1963.

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