Stability Analysis of Symmetrical Rotors Partially Filled with a Viscous Incompressible Fluid
On the basis of the linearized fluid forces acting on the rotor obtained directly by using the two-dimensional Navier-Stokes equations, the stability of symmetrical rotors with a cylindrical chamber partially filled with a viscous incompressible fluid is investigated in this paper. The effects of th...
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| Format: | Article |
| Language: | English |
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Wiley
2001-01-01
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| Series: | International Journal of Rotating Machinery |
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| Online Access: | http://dx.doi.org/10.1155/S1023621X01000252 |
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| _version_ | 1832562263435771904 |
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| author | Zhu Changsheng |
| author_facet | Zhu Changsheng |
| author_sort | Zhu Changsheng |
| collection | DOAJ |
| description | On the basis of the linearized fluid forces acting on the rotor obtained directly by using the two-dimensional Navier-Stokes equations, the stability of symmetrical rotors with
a cylindrical chamber partially filled with a viscous incompressible fluid is investigated
in this paper. The effects of the parameters of rotor system, such as external damping
ratio, fluid fill ratio, Reynolds number and mass ratio, on the unstable regions are
analyzed. It is shown that for the stability analysis of fluid filled rotor systems with
external damping, the effect of the fluid viscosity on the stability should be considered.
When the fluid viscosity is included, the adding external damping will make the system
more stable and two unstable regions may exist even if rotors are isotropic in some
casIs. |
| format | Article |
| id | doaj-art-57fa600902ed4e7890ab7d40154a82ce |
| institution | Kabale University |
| issn | 1023-621X |
| language | English |
| publishDate | 2001-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-57fa600902ed4e7890ab7d40154a82ce2025-02-03T01:23:00ZengWileyInternational Journal of Rotating Machinery1023-621X2001-01-017530131010.1155/S1023621X01000252Stability Analysis of Symmetrical Rotors Partially Filled with a Viscous Incompressible FluidZhu Changsheng0Department of Electrical Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, ChinaOn the basis of the linearized fluid forces acting on the rotor obtained directly by using the two-dimensional Navier-Stokes equations, the stability of symmetrical rotors with a cylindrical chamber partially filled with a viscous incompressible fluid is investigated in this paper. The effects of the parameters of rotor system, such as external damping ratio, fluid fill ratio, Reynolds number and mass ratio, on the unstable regions are analyzed. It is shown that for the stability analysis of fluid filled rotor systems with external damping, the effect of the fluid viscosity on the stability should be considered. When the fluid viscosity is included, the adding external damping will make the system more stable and two unstable regions may exist even if rotors are isotropic in some casIs.http://dx.doi.org/10.1155/S1023621X01000252RotordynamicsInstabilityRotating fluidN-S equationRotors. |
| spellingShingle | Zhu Changsheng Stability Analysis of Symmetrical Rotors Partially Filled with a Viscous Incompressible Fluid International Journal of Rotating Machinery Rotordynamics Instability Rotating fluid N-S equation Rotors. |
| title | Stability Analysis of Symmetrical Rotors Partially
Filled with a Viscous Incompressible Fluid |
| title_full | Stability Analysis of Symmetrical Rotors Partially
Filled with a Viscous Incompressible Fluid |
| title_fullStr | Stability Analysis of Symmetrical Rotors Partially
Filled with a Viscous Incompressible Fluid |
| title_full_unstemmed | Stability Analysis of Symmetrical Rotors Partially
Filled with a Viscous Incompressible Fluid |
| title_short | Stability Analysis of Symmetrical Rotors Partially
Filled with a Viscous Incompressible Fluid |
| title_sort | stability analysis of symmetrical rotors partially filled with a viscous incompressible fluid |
| topic | Rotordynamics Instability Rotating fluid N-S equation Rotors. |
| url | http://dx.doi.org/10.1155/S1023621X01000252 |
| work_keys_str_mv | AT zhuchangsheng stabilityanalysisofsymmetricalrotorspartiallyfilledwithaviscousincompressiblefluid |