Harmonic Balance Analysis for the Rigid Finite Element Model of the Rotating Cracked Shaft

Abstract:

The paper presents a multi-dimensional harmonic balance analysis utilized to study the vibration responses of the cracked rotor subject to gravity, unbalance and an additional lateral harmonic force generated by an active magnetic bearing. The nonlinear terms resulting from the shaft crack are included via an alternating frequency/time domain (AFT) method. The example addressed in this paper is a simple rotor modeled by using the rigid finite element (RFE) approach. Combination frequencies are recognized as evident symptoms of the shaft crack.

• Periodical: Solid State Phenomena (Volume 199)
• Pages: 99-104
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.199.99
• Online since: March 2013
• Authors: Zbigniew Kulesza
• Keywords: Cracked Shaft, Harmonic Balance Method, Rigid Finite Element Model, Rotor Diagnostics

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