Using Cross-Coupling Effects for Suppression of Contact Severity

Abstract:

In this paper the influence of cross-coupling effects on the rubbing-related dynamics of rotor/stator systems is investigated. The model considered in this paper is a 4-dof rotor/stator system which takes into account the dynamics of the stator and the deformation on the contact surface as well as the cross-coupling effects. The stability of the synchronous full annular rub solution of the model is first analyzed. Then, the cross-coupling effects on the stability of the system at different system parameters are studied. It is found that the cross-coupling effects of the rotor stiffness as well as those of the stator damping and stiffness will benefit the synchronous full annular rubs while the cross-coupling damping of the rotor will reduced the stability domain of the response and lead the system to a response with a heavier rubbing

• Periodical: Applied Mechanics and Materials (Volume 614)
• Pages: 48-52
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.614.48
• Online since: September 2014
• Authors: Zhi Yong Shang*, Talgar Shaymurat, Li Jun Xu
• Keywords: Cross-Coupling Effects, Rotor System, Stability, Stator System, Synchronous Full Annular Rub

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