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Effect of shrink fits on threshold speeds of rotordynamic instability
| dc.creator | Al-Baz, Khalid A | |
| dc.date.accessioned | 2012-06-07T23:02:11Z | |
| dc.date.available | 2012-06-07T23:02:11Z | |
| dc.date.created | 2001 | |
| dc.date.issued | 2001 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-2001-THESIS-A451 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Includes bibliographical references (leaves 103-105). | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | The purpose of this thesis is to study the effect of shrink fits on the threshold speeds of rotor instability. Shrink or press fit components in built-up rotors are known sources of internal friction damping. The internal friction damping increases with speed, and becomes a destabilizing mechanism once the rotor speed exceeds its first critical speed. The main objective of this thesis is to find an improved procedure to accurately determine the correct numerical value of the internal friction damping for use in rotordynamic models. Tests show that the free-free rap tests yield a better way to obtain the numerical approximate values of the internal friction damping of built-up rotors. These results were verified by comparing the rotordynamic models with running tests. It was found that the internal friction damping increases with decreasing interference fit and with increasing rotor speed. The threshold speed of instability appears at low interference fits but not at tight fits. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | mechanical engineering. | en |
| dc.subject | Major mechanical engineering. | en |
| dc.title | Effect of shrink fits on threshold speeds of rotordynamic instability | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | mechanical engineering | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
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