A Dynamic Analysis of a Flexible Rotor in Ball Bearings with Nonlinear Stiffness Characteristics
This paper presents an effective analysis approach for a flexible rotor in ball bearings with nonlinear stiffness characteristics to obtain realistic dynamic behavior results. The ball bearing is modeled in five degrees of freedom and the nonlinear stiffness characteristics of the bearing are comple...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1997-01-01
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| Series: | International Journal of Rotating Machinery |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/S1023621X97000080 |
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| _version_ | 1832562522842988544 |
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| author | Dong-Soo Lee Dong-Hoon Choi |
| author_facet | Dong-Soo Lee Dong-Hoon Choi |
| author_sort | Dong-Soo Lee |
| collection | DOAJ |
| description | This paper presents an effective analysis approach for a flexible rotor in ball bearings with
nonlinear stiffness characteristics to obtain realistic dynamic behavior results. The ball bearing
is modeled in five degrees of freedom and the nonlinear stiffness characteristics of the
bearing are completely described as functions of combined loads and spin speed. For dynamic
behavior analysis of the nonlinear rotor-bearing system, a transfer-matrix method is
iteratively used until the bearing displacements and the shaft displacements at every bearing
location converge to the same values. The results show that the nonlinear stiffness characteristics
of ball bearings significantly influence system dynamic behaviors and the proposed
analysis approach for the nonlinear rotor-bearing system is effective. |
| format | Article |
| id | doaj-art-371f6db266f64b01a1d1ccf1b0283621 |
| institution | Kabale University |
| issn | 1023-621X |
| language | English |
| publishDate | 1997-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-371f6db266f64b01a1d1ccf1b02836212025-02-03T01:22:22ZengWileyInternational Journal of Rotating Machinery1023-621X1997-01-0132738010.1155/S1023621X97000080A Dynamic Analysis of a Flexible Rotor in Ball Bearings with Nonlinear Stiffness CharacteristicsDong-Soo Lee0Dong-Hoon Choi1Department of Mechanical Design & Production Engineering, Hanyang University, Seoul 133-791, KoreaDepartment of Mechanical Design & Production Engineering, Hanyang University, Seoul 133-791, KoreaThis paper presents an effective analysis approach for a flexible rotor in ball bearings with nonlinear stiffness characteristics to obtain realistic dynamic behavior results. The ball bearing is modeled in five degrees of freedom and the nonlinear stiffness characteristics of the bearing are completely described as functions of combined loads and spin speed. For dynamic behavior analysis of the nonlinear rotor-bearing system, a transfer-matrix method is iteratively used until the bearing displacements and the shaft displacements at every bearing location converge to the same values. The results show that the nonlinear stiffness characteristics of ball bearings significantly influence system dynamic behaviors and the proposed analysis approach for the nonlinear rotor-bearing system is effective.http://dx.doi.org/10.1155/S1023621X97000080Rotor-bearing systemball bearingnonlinear bearing stiffnesscritical speedunbalance responsewhirl orbit. |
| spellingShingle | Dong-Soo Lee Dong-Hoon Choi A Dynamic Analysis of a Flexible Rotor in Ball Bearings with Nonlinear Stiffness Characteristics International Journal of Rotating Machinery Rotor-bearing system ball bearing nonlinear bearing stiffness critical speed unbalance response whirl orbit. |
| title | A Dynamic Analysis of a Flexible Rotor in Ball Bearings
with Nonlinear Stiffness Characteristics |
| title_full | A Dynamic Analysis of a Flexible Rotor in Ball Bearings
with Nonlinear Stiffness Characteristics |
| title_fullStr | A Dynamic Analysis of a Flexible Rotor in Ball Bearings
with Nonlinear Stiffness Characteristics |
| title_full_unstemmed | A Dynamic Analysis of a Flexible Rotor in Ball Bearings
with Nonlinear Stiffness Characteristics |
| title_short | A Dynamic Analysis of a Flexible Rotor in Ball Bearings
with Nonlinear Stiffness Characteristics |
| title_sort | dynamic analysis of a flexible rotor in ball bearings with nonlinear stiffness characteristics |
| topic | Rotor-bearing system ball bearing nonlinear bearing stiffness critical speed unbalance response whirl orbit. |
| url | http://dx.doi.org/10.1155/S1023621X97000080 |
| work_keys_str_mv | AT dongsoolee adynamicanalysisofaflexiblerotorinballbearingswithnonlinearstiffnesscharacteristics AT donghoonchoi adynamicanalysisofaflexiblerotorinballbearingswithnonlinearstiffnesscharacteristics AT dongsoolee dynamicanalysisofaflexiblerotorinballbearingswithnonlinearstiffnesscharacteristics AT donghoonchoi dynamicanalysisofaflexiblerotorinballbearingswithnonlinearstiffnesscharacteristics |