STUDY ON NONLINEAR DYNAMICS OF ASYMMETRICAL SUPPORTED ROTOR UNDER INFLUENCE OF HEELING ANGLE
This paper takes the support structure of a low-pressure rotor system of a marine gas turbine as the background.Considering the heel angle of the rotor system,a dynamic model of the rotor supported by asymmetric rolling bearing is established. The variable-step fourth-order Runge-Kutta method was us...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2020-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.02.006 |
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| _version_ | 1841535780714971136 |
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| author | LI Mo LIU YongBao WANG Qiang |
| author_facet | LI Mo LIU YongBao WANG Qiang |
| author_sort | LI Mo |
| collection | DOAJ |
| description | This paper takes the support structure of a low-pressure rotor system of a marine gas turbine as the background.Considering the heel angle of the rotor system,a dynamic model of the rotor supported by asymmetric rolling bearing is established. The variable-step fourth-order Runge-Kutta method was used to solve the system’ s dynamic equations,and the nonlinear theory were used to analyze the simulation results. The study shows that the heel angle has no effect on the stability of the system at low rotational speeds. At high rotational speed,the heel angle mainly affects the 1/2 harmonic of the system,and the system has a single chaotic island or two chaotic islands. When the left or right tilt angle of the rotor system is the same,the heel angle has the same effect on the nonlinear dynamics of the system. The research results can provide a theoretical basis for the design,monitoring and fault diagnosis of the rotor system. |
| format | Article |
| id | doaj-art-64b3a91d50ac4c59bec97e8b20a64cbf |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2020-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-64b3a91d50ac4c59bec97e8b20a64cbf2025-01-15T02:28:07ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692020-01-014229329830607334STUDY ON NONLINEAR DYNAMICS OF ASYMMETRICAL SUPPORTED ROTOR UNDER INFLUENCE OF HEELING ANGLELI MoLIU YongBaoWANG QiangThis paper takes the support structure of a low-pressure rotor system of a marine gas turbine as the background.Considering the heel angle of the rotor system,a dynamic model of the rotor supported by asymmetric rolling bearing is established. The variable-step fourth-order Runge-Kutta method was used to solve the system’ s dynamic equations,and the nonlinear theory were used to analyze the simulation results. The study shows that the heel angle has no effect on the stability of the system at low rotational speeds. At high rotational speed,the heel angle mainly affects the 1/2 harmonic of the system,and the system has a single chaotic island or two chaotic islands. When the left or right tilt angle of the rotor system is the same,the heel angle has the same effect on the nonlinear dynamics of the system. The research results can provide a theoretical basis for the design,monitoring and fault diagnosis of the rotor system.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.02.006Heeling angleAsymmetrical supportRolling bearingNonlinear |
| spellingShingle | LI Mo LIU YongBao WANG Qiang STUDY ON NONLINEAR DYNAMICS OF ASYMMETRICAL SUPPORTED ROTOR UNDER INFLUENCE OF HEELING ANGLE Jixie qiangdu Heeling angle Asymmetrical support Rolling bearing Nonlinear |
| title | STUDY ON NONLINEAR DYNAMICS OF ASYMMETRICAL SUPPORTED ROTOR UNDER INFLUENCE OF HEELING ANGLE |
| title_full | STUDY ON NONLINEAR DYNAMICS OF ASYMMETRICAL SUPPORTED ROTOR UNDER INFLUENCE OF HEELING ANGLE |
| title_fullStr | STUDY ON NONLINEAR DYNAMICS OF ASYMMETRICAL SUPPORTED ROTOR UNDER INFLUENCE OF HEELING ANGLE |
| title_full_unstemmed | STUDY ON NONLINEAR DYNAMICS OF ASYMMETRICAL SUPPORTED ROTOR UNDER INFLUENCE OF HEELING ANGLE |
| title_short | STUDY ON NONLINEAR DYNAMICS OF ASYMMETRICAL SUPPORTED ROTOR UNDER INFLUENCE OF HEELING ANGLE |
| title_sort | study on nonlinear dynamics of asymmetrical supported rotor under influence of heeling angle |
| topic | Heeling angle Asymmetrical support Rolling bearing Nonlinear |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.02.006 |
| work_keys_str_mv | AT limo studyonnonlineardynamicsofasymmetricalsupportedrotorunderinfluenceofheelingangle AT liuyongbao studyonnonlineardynamicsofasymmetricalsupportedrotorunderinfluenceofheelingangle AT wangqiang studyonnonlineardynamicsofasymmetricalsupportedrotorunderinfluenceofheelingangle |