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| 001 |
in00000577644 |
| 005 |
20220103135445.0 |
| 008 |
870811s1985 xx a bm 000 0 eng d |
| 035 |
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|9 ACP8192AM
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| 035 |
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|a (OCoLC)16413945
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| 035 |
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|a (OCoLC)ocm16413945
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| 040 |
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|a TXA
|b eng
|c TXA
|d OCLCQ
|d OCLCF
|d OCLCQ
|d OCLCO
|d TXA
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| 049 |
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|a TXAM
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| 099 |
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|a 1985
|a Dissertation
|a K48
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| 100 |
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|a Kim, Chang-Ho,
|d 1954-
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| 245 |
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|a Analysis and testing for rotordynamic coefficients of grooved turbulent annular seals /
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| 264 |
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|c 1985.
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| 300 |
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|a xviii, 168 leaves :
|b illustrations ;
|c 29 cm
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| 336 |
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|a text
|b txt
|2 rdacontent
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| 337 |
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|a unmediated
|b n
|2 rdamedia
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| 338 |
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|a volume
|b nc
|2 rdacarrier
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| 500 |
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|a "Major subject: Mechanical Engineering."
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| 500 |
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|a Typescript (photocopy).
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| 500 |
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|a Vita.
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| 502 |
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|b Ph. D.
|c Texas A & M University
|d 1985
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| 504 |
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|a Includes bibliographical references (leaves 138-141).
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| 520 |
3 |
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|a An analysis for turbulent grooved seals which are the most common design in commercial pumps was developed and tested to predict leakage and dynamic coefficients, as related to rotor- dynamics. The grooved surface roughness pattern is formulated as an inhomogeneous directivity in surface shear stresses. The governing equations are expanded in the eccentricity ratio to yield zeroth and first-order perturbation solutions. Comparisons between analysis and experimental data are carried out in terms of effective stiffness, effective damping, and effective inertia coefficients for both tapered and constant-clearance circumferentially-grooved seals. Agreement between test results and analysis for net-damping coefficients is satisfactory, but the stiffness predictions have mixed results. Test results for a range of circumferential-grooving patterns show superiority in leakage performance, but inferiority in net-damping coefficients, as compared to the smooth seal and damper seal.* Analytical results are presented for helically-grooved seals in the High Pressure Oxygen Turbopump (HPOTP) of the Space Shuttle Main Engine (SSME) to determine the influence of seal parameters on dynamic coefficients, stability estimates, leakage performance, and power consumption. The proper selection of seal parameters improves the seal performance in terms of leakage and stability.
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| 650 |
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|a Sealing (Technology)
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| 650 |
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4 |
|a Major mechanical engineering.
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| 655 |
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7 |
|a Academic theses
|2 lcgft
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| 700 |
1 |
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|a Childs, D. W.,
|e degree supervisor.
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| 700 |
1 |
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|a Childs, S. Bart,
|e degree committee member.
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| 700 |
1 |
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|a Morrison, G. L.,
|e degree committee member.
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| 700 |
1 |
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|a Rhode, D. L.,
|e degree committee member.
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| 710 |
2 |
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|a Texas A & M University,
|e degree granting institution.
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| 856 |
4 |
1 |
|u http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=751818011&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD
|z Link to ProQuest copy
|t 0
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| 856 |
4 |
1 |
|u https://hdl.handle.net/1969.1/DISSERTATIONS-595960
|z Link to OAKTrust copy
|t 0
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| 994 |
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|a C0
|b TXA
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| 999 |
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|s 9c0652f8-3083-348c-a581-37df95ffca8c
|i 650dafbe-d91b-31d3-8c94-8fffbcfeb3b0
|t 0
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| 952 |
f |
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|p noncirc
|a Texas A&M University
|b J.J. Pickle Campus
|c High Density Repository
|s HDR
|d Remote Storage
|t 0
|e 1985 Dissertation K48
|h Other scheme
|i unmediated -- volume
|m A14840971311
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| 952 |
f |
f |
|a Texas A&M University
|b College Station
|c Electronic Resources
|s www_evans
|d Available Online
|t 0
|e 1985 Dissertation K48
|h Other scheme
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| 998 |
f |
f |
|a 1985 Dissertation K48
|t 0
|l Available Online
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| 998 |
f |
f |
|a 1985 Dissertation K48
|t 0
|l Remote Storage
|