Dynamic Stability of an Elastic Rotating System: Shell-Disc-Shaft
This paper presents a methodology and some results on the dynamic stability of an elastic rotating system consisting of one- and twodimensional members. These parts may contain different kinds of unsymmetries: either from mass- or stiffness imperfections or from anisotropic especially hydrodynamic b...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
1997-01-01
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| Series: | International Journal of Rotating Machinery |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/S1023621X97000043 |
| Summary: | This paper presents a methodology and some results on the dynamic stability of an elastic
rotating system consisting of one- and twodimensional members. These parts may contain
different kinds of unsymmetries: either from mass- or stiffness imperfections or from anisotropic
especially hydrodynamic bearings. The equations of motion are formulated using
virtual work and an Finite Element approach. Special attention is paid to a kinematically
consistent coupling of the elastic shell and disc. The eigenvalue extraction is based upon the
method of Lanczos including a modal reduction and a correction process in order to ensure
true diagonal system matrices. Some typical results for a shaft-disc-shell system with different
bearings and imperfections are presented in detail. |
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| ISSN: | 1023-621X |