Nonlinear Dynamics Numerical Analysis of Rolling Bearing-rotor System based on Finite Element Modeling
Based on the bearing dynamics and rotor dynamics，considering the nonlinear factors such as Hertz elastic contact force and radial clearance between rolling element and inner and outer raceway of rolling bearing. According to Timoshenko beam-axis theory，the finite element discretization model of the...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2021-06-01
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| Series: | Jixie chuandong |
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| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.06.006 |
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| author | Yunlong Li |
| author_facet | Yunlong Li |
| author_sort | Yunlong Li |
| collection | DOAJ |
| description | Based on the bearing dynamics and rotor dynamics，considering the nonlinear factors such as Hertz elastic contact force and radial clearance between rolling element and inner and outer raceway of rolling bearing. According to Timoshenko beam-axis theory，the finite element discretization model of the bearing-rotor system is established and the Newmark numerical method is used to solve the problem. Meanwhile the nonlinear dynamic behaviors of the system are illustrated by means of bifurcation diagrams，Poincaré maps，frequency spectrum diagrams，phase diagrams and orbit plots. The results shows that，the rotor system presents periodic and aperiodic (quasi periodic or chaos) responses. After passing through the chaotic region，the rotor system enters into chaos through period doubling bifurcation，and then leaves chaos through paroxysmal bifurcation. Reasonable selection of rotor speed and clearance can reduce the non periodic vibration caused by nonlinear bearing force，which can improve the stability of the system. The analytic results will provide a referenced gist for the dynamic stability of dual-rotor-rolling-bearing by the quantitative and qualitative analysis. |
| format | Article |
| id | doaj-art-3582e1996ff64e00960108e0a676d869 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2021-06-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-3582e1996ff64e00960108e0a676d8692025-01-10T14:48:48ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392021-06-0145384511255526Nonlinear Dynamics Numerical Analysis of Rolling Bearing-rotor System based on Finite Element ModelingYunlong LiBased on the bearing dynamics and rotor dynamics，considering the nonlinear factors such as Hertz elastic contact force and radial clearance between rolling element and inner and outer raceway of rolling bearing. According to Timoshenko beam-axis theory，the finite element discretization model of the bearing-rotor system is established and the Newmark numerical method is used to solve the problem. Meanwhile the nonlinear dynamic behaviors of the system are illustrated by means of bifurcation diagrams，Poincaré maps，frequency spectrum diagrams，phase diagrams and orbit plots. The results shows that，the rotor system presents periodic and aperiodic (quasi periodic or chaos) responses. After passing through the chaotic region，the rotor system enters into chaos through period doubling bifurcation，and then leaves chaos through paroxysmal bifurcation. Reasonable selection of rotor speed and clearance can reduce the non periodic vibration caused by nonlinear bearing force，which can improve the stability of the system. The analytic results will provide a referenced gist for the dynamic stability of dual-rotor-rolling-bearing by the quantitative and qualitative analysis.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.06.006Rolling bearing-rotor systemFinite element methodNonlinear dynamicsBifurcationChaos |
| spellingShingle | Yunlong Li Nonlinear Dynamics Numerical Analysis of Rolling Bearing-rotor System based on Finite Element Modeling Jixie chuandong Rolling bearing-rotor system Finite element method Nonlinear dynamics Bifurcation Chaos |
| title | Nonlinear Dynamics Numerical Analysis of Rolling Bearing-rotor System based on Finite Element Modeling |
| title_full | Nonlinear Dynamics Numerical Analysis of Rolling Bearing-rotor System based on Finite Element Modeling |
| title_fullStr | Nonlinear Dynamics Numerical Analysis of Rolling Bearing-rotor System based on Finite Element Modeling |
| title_full_unstemmed | Nonlinear Dynamics Numerical Analysis of Rolling Bearing-rotor System based on Finite Element Modeling |
| title_short | Nonlinear Dynamics Numerical Analysis of Rolling Bearing-rotor System based on Finite Element Modeling |
| title_sort | nonlinear dynamics numerical analysis of rolling bearing rotor system based on finite element modeling |
| topic | Rolling bearing-rotor system Finite element method Nonlinear dynamics Bifurcation Chaos |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.06.006 |
| work_keys_str_mv | AT yunlongli nonlineardynamicsnumericalanalysisofrollingbearingrotorsystembasedonfiniteelementmodeling |