Nonsmooth Bifurcations in a Cracked Rotor-Active Magnetic Bearings System

Feng Hong Yang; Hong Zhi Tong

doi:10.4028/www.scientific.net/AMR.989-994.2825

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994Nonsmooth Bifurcations in a Cracked Rotor-Active...

Nonsmooth Bifurcations in a Cracked Rotor-Active Magnetic Bearings System

Abstract:

A cracked rotor-active magnetic bearings (AMB) system with the time-varying stiffness is modeled by a piecewise smooth system due to the breath of crack in a rotating shaft. The governing nonlinear equations of motion for the nonsmooth system are established and solved with the numerical method. The simulation results show that a grazing bifurcation, period-double bifurcation and chaotic motions exist in the response. These nonsmooth bifurcations can give rise to jumps between periodic motions, quasi-periodic motions and chaos.

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Periodical:

Advanced Materials Research (Volumes 989-994)

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2825-2828

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https://doi.org/10.4028/www.scientific.net/AMR.989-994.2825

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Online since:

July 2014

Authors:

Feng Hong Yang*, Hong Zhi Tong

Keywords:

Chaos, Cracked Rotor-Active Magnetic Bearings, Nonsmooth Bifurcation

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