On the Discrete–Continuous Modeling of Rotor Systems for the Analysis of Coupled Lateral Torsional Vibrations
In the paper, dynamic investigations of the rotor shaft systems are performed by means of the discrete-continuous mechanical models. In these models the rotor shaft segments are represented by the rotating cylindrical flexurally and torsionally deformable continuous viscoelastic elements. These elem...
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| Format: | Article |
| Language: | English |
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Wiley
2000-01-01
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| Series: | International Journal of Rotating Machinery |
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| Online Access: | http://dx.doi.org/10.1155/S1023621X00000130 |
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| _version_ | 1832549586900615168 |
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| author | Tomasz Szolc |
| author_facet | Tomasz Szolc |
| author_sort | Tomasz Szolc |
| collection | DOAJ |
| description | In the paper, dynamic investigations of the rotor shaft systems are performed by means of the discrete-continuous mechanical models. In these models the rotor shaft segments are represented by the rotating cylindrical flexurally and torsionally deformable continuous viscoelastic elements. These elements are mutually connected according to the structure of the real system in the form of a stepped shaft which is suspended on concentrated inertial viscoelastic supports of linear or non-linear characteristics. At appropriate shaft crosssections, by means of massless membranes, there are attached rigid rings representing rotors, disks, gears, flywheels and others. The proposed model enables us to investigate coupled linear or non-linear lateral torsional Vibrations of the rotating systems in steady-state and transient operating conditions. As demonstrative examples, for the steam turbo-compressor under coupled lateral torsional vibrations, the transient response due to a blade falling out from the turbine rotor as well as the steady-state response in the form of parametric resonance caused by residual unbalances are presented. |
| format | Article |
| id | doaj-art-7d9d9eade9e54519a8f775d624b3869e |
| institution | Kabale University |
| issn | 1023-621X |
| language | English |
| publishDate | 2000-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-7d9d9eade9e54519a8f775d624b3869e2025-02-03T06:10:52ZengWileyInternational Journal of Rotating Machinery1023-621X2000-01-016213514910.1155/S1023621X00000130On the Discrete–Continuous Modeling of Rotor Systems for the Analysis of Coupled Lateral Torsional VibrationsTomasz Szolc0Institute of Fundamental Technological Research, ul. Świętokrzyska 21, Warsaw PL-O0-049, PolandIn the paper, dynamic investigations of the rotor shaft systems are performed by means of the discrete-continuous mechanical models. In these models the rotor shaft segments are represented by the rotating cylindrical flexurally and torsionally deformable continuous viscoelastic elements. These elements are mutually connected according to the structure of the real system in the form of a stepped shaft which is suspended on concentrated inertial viscoelastic supports of linear or non-linear characteristics. At appropriate shaft crosssections, by means of massless membranes, there are attached rigid rings representing rotors, disks, gears, flywheels and others. The proposed model enables us to investigate coupled linear or non-linear lateral torsional Vibrations of the rotating systems in steady-state and transient operating conditions. As demonstrative examples, for the steam turbo-compressor under coupled lateral torsional vibrations, the transient response due to a blade falling out from the turbine rotor as well as the steady-state response in the form of parametric resonance caused by residual unbalances are presented.http://dx.doi.org/10.1155/S1023621X00000130Rotating machinery dynamicsDiscrete-continuous modelNon-linear and parametric lateral torsional vibrationsNumerical simulation. |
| spellingShingle | Tomasz Szolc On the Discrete–Continuous Modeling of Rotor Systems for the Analysis of Coupled Lateral Torsional Vibrations International Journal of Rotating Machinery Rotating machinery dynamics Discrete-continuous model Non-linear and parametric lateral torsional vibrations Numerical simulation. |
| title | On the Discrete–Continuous Modeling of Rotor Systems for
the Analysis of Coupled Lateral Torsional Vibrations |
| title_full | On the Discrete–Continuous Modeling of Rotor Systems for
the Analysis of Coupled Lateral Torsional Vibrations |
| title_fullStr | On the Discrete–Continuous Modeling of Rotor Systems for
the Analysis of Coupled Lateral Torsional Vibrations |
| title_full_unstemmed | On the Discrete–Continuous Modeling of Rotor Systems for
the Analysis of Coupled Lateral Torsional Vibrations |
| title_short | On the Discrete–Continuous Modeling of Rotor Systems for
the Analysis of Coupled Lateral Torsional Vibrations |
| title_sort | on the discrete continuous modeling of rotor systems for the analysis of coupled lateral torsional vibrations |
| topic | Rotating machinery dynamics Discrete-continuous model Non-linear and parametric lateral torsional vibrations Numerical simulation. |
| url | http://dx.doi.org/10.1155/S1023621X00000130 |
| work_keys_str_mv | AT tomaszszolc onthediscretecontinuousmodelingofrotorsystemsfortheanalysisofcoupledlateraltorsionalvibrations |