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dc.creatorLi, Qiming
dc.descriptionDue 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, referencing the URI of the item.en
dc.descriptionIncludes bibliographical references.en
dc.descriptionIssued also on microfiche from Lange Micrographics.en
dc.description.abstractAn existing rotordynamic test apparatus is modified for a new type of gas damper seal. Experimental results including coastdowns, rap tests and leakage from the gas damper seal are presented along with comparison tests of a conventional labyrinth seal of the same geometrical dimensions and inlet clearance. Coastdown tests through the critical speed show large reductions in peak response to imbalance in all cases, with the critical speed being completely eliminated by the tested gas damper seal. Rap tests illustrate that the damping advantage of the gas damper seal increases with inlet air pressure and becomes overwhelming at inlet pressure above 40 psia. Experimental results show that the leakage rate of the tested gas damper seal is typically 30% higher than that of the conventional labyrinth seal. A comparison of test results to analytical predictions is also presented in this thesis.en
dc.publisherTexas A&M University
dc.rightsThis 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.subjectmechanical engineering.en
dc.subjectMajor mechanical engineering.en
dc.titleThe effect of a new damper seal on rotordynamicsen
dc.typeThesisen engineeringen
dc.format.digitalOriginreformatted digitalen

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