Rotordynamics/discharge water-hammer coupling via seals in pump rotordynamics

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dc.contributor.advisor Childs, Dara W. en_US
dc.creator Zhang, Kaikai en_US
dc.date.accessioned 2004-09-30T02:07:00Z
dc.date.available 2004-09-30T02:07:00Z
dc.date.created 2005-05 en_US
dc.date.issued 2004-09-30T02:07:00Z
dc.identifier.uri http://handle.tamu.edu/1969.1/514
dc.description.abstract A new closed-loop frequency-domain model is developed to incorporate the water hammer effect with pump rotordynamics, in order to investigate the sub-synchronous instability problem observed in a field pump. Seal flow-rate perturbations due to eccentricity are calculated from Soulas and San Andres's seal code. A complete transfer function matrix between rotor motion and reaction force due to pressure perturbation is developed in detail. Stability analysis with transfer-function'add-in' modules is conducted in XLTRC2. Seal clearances and the reaction force angle are found to be important in shifting natural frequencies and damping. The sub-synchronous instability observed in field is duplicated successfully with double-clearance seals. en_US
dc.description.provenance Made available in DSpace on 2004-09-30T02:07:00Z (GMT). No. of bitstreams: 2 etd-tamu-2003A-2003030414-1.pdf: 1370956 bytes, checksum: 0e98d41a8c66da25d88067a321fa1787 (MD5) etd-tamu-2003A-2003030414-1.pdf.txt: 78121 bytes, checksum: 2bccb75c5908fa1b211371830a155301 (MD5) en
dc.format.extent 1370956 bytes
dc.format.extent 78121 bytes
dc.format.medium electronic en_US
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.language.iso en_US en_US
dc.publisher Texas A&M University en_US
dc.subject rotordynamics en_US
dc.subject discharge water-hammer en_US
dc.subject subsynchronous instability en_US
dc.subject seal flow-rate en_US
dc.title Rotordynamics/discharge water-hammer coupling via seals in pump rotordynamics en_US
thesis.degree.department Mechanical Engineering en_US
thesis.degree.discipline Mechanical Engineering en_US
thesis.degree.grantor Texas A&M University en_US
thesis.degree.name MS en_US
thesis.degree.level Masters en_US
dc.contributor.committeeMember San Andres, Luis en_US
dc.contributor.committeeMember Roesset, Jose M. en_US
dc.type.genre Electronic Thesis en_US
dc.type.material text en_US
dc.format.digitalOrigin born digital en_US

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