非线性刚性转子系统振动的主动控制

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1994, Vol. 15 ›› Issue (4): 476-480.

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ACTIVE VIBRATION CONTROL OF A ROTOR SYSTEM WITH NONLINEAR SPRING CHARACTERISTICS

Liu Baojiang, Yan Litang

Faculty 405,Beijing University of Aeronautics and Astronautics, 100083,Beijing

Received:1992-05-07 Revised:1992-11-12 Online:1994-04-25 Published:1994-04-25

Abstract

Abstract: ased on nonlinear vibration theory of a rotor system with noulinear spring character-istics excited by an unbalanced forcc,a control teehnique for suppressing vibrational response of a rotor system passing through critical speeds by controllable nonlinear spring characteristics is developed.In the technique,the supporting stiffnesscs have a softer characteristic when a rotor is accele rated and have a harder one when the rotor is decelerated. In an experiment,a set of controllable nonlinear spring characteristics is built up to verity the effect of the technique in re-ucing vibrational level when a rotor passes through critical speeds.

Key words: rotor dynamics, active control, nonlinearity

CLC Number:

V231.96
D326

Liu Baojiang;Yan Litang. ACTIVE VIBRATION CONTROL OF A ROTOR SYSTEM WITH NONLINEAR SPRING CHARACTERISTICS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(4): 476-480.

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ACTIVE VIBRATION CONTROL OF A ROTOR SYSTEM WITH NONLINEAR SPRING CHARACTERISTICS

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