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Experimental study of rotordynamic coefficients of squeeze film dampers of an aircraft gas turbine engine
| dc.creator | Na, Uhn Joo | |
| dc.date.accessioned | 2012-06-07T22:46:07Z | |
| dc.date.available | 2012-06-07T22:46:07Z | |
| dc.date.created | 1996 | |
| dc.date.issued | 1996 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-N33 | |
| 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: p. 189-192. | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | The rotordynamic coefficients of squeeze film dampers of an aircraft gas turbine engine were investigated experimentally. Rotordynamic model(XLROTOR) for Gas Generator and Power Turbine were constructed. The XLROTOR response plots with changing bearing damping and stiffness coefficients were well matched with the coastdown plots of the test runs. The squeeze film dampers reduced effective support stiffness with respect to the rotational speed. Damping coefficients of squeeze film dampers were mainly determined by the XLROTOR model simulations. The damping coefficients changed with respect to the rotational speed. High oil supply pressure helped to suppress vibrationamplitudes at critical speeds. Great amount of air bubbles were observed at the oil return lines. | 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 | Experimental study of rotordynamic coefficients of squeeze film dampers of an aircraft gas turbine engine | 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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