Title: Dynamic Analysis of Rubbing Rotor System Supported on Non-Linear Oil Film Bearings
Abstract: When discussing the issue of rub impact of rotor system,the effect of nonlinear rub-impact force is needed to be considered.Modeling and numerical simulation were carried out by using the nonlinear rubbing force based on Hertz contact theory,and the dynamic responses of fault rotor system under the different rubbing stiffness was researched.Through the analysis it was found that,when the rubbing stiffness is large,the result simulated by using Hertz contact theory rubbing force model has stronger nonlinear,and the more obvious rubbing feature,compared to the rubbing model of linear stiffness.It is beneficial to determine the occurrence of rubbing.Combined with relevant experimental results,the correctness of the Hertz rubbing model and the feasibility of applying it in rubbing rotor system modeling were verified.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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