Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 5American Society of Mechanical Engineers, 1992 - Arctic regions |
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Page 172
... Frequency 126,000 010101 ( 2 ) 71,400 040202 ( 4 ) 0.5 1 1.5 2 2.5 3 3.5 Frequency ( Hz ) 300,000 040601 ( 3 ) 298,000 050501 ( 7 ) 232,000 050501 ( 6 ) 230,000 030101 ( 6 ) 224,000 040502 ( 3 ) 181,000 060402 ( 7 ) 171,000 030201 ( 5 ) ...
... Frequency 126,000 010101 ( 2 ) 71,400 040202 ( 4 ) 0.5 1 1.5 2 2.5 3 3.5 Frequency ( Hz ) 300,000 040601 ( 3 ) 298,000 050501 ( 7 ) 232,000 050501 ( 6 ) 230,000 030101 ( 6 ) 224,000 040502 ( 3 ) 181,000 060402 ( 7 ) 171,000 030201 ( 5 ) ...
Page 179
... frequency tuning aimed at reducing vibration in the mode shapes with corresponding frequencies bounded by frequencies for a single span with pinned- and fixed - end boundary conditions . These vibration shapes are illustrated in Figure ...
... frequency tuning aimed at reducing vibration in the mode shapes with corresponding frequencies bounded by frequencies for a single span with pinned- and fixed - end boundary conditions . These vibration shapes are illustrated in Figure ...
Page 287
... frequency , and " Q " factors between 100 and 250 ( Q = 1/2 , where = damping ratio ) . With a spacing of 15 Hz between successive compressor orders , and the variation of 21 Hz between respective natural frequencies , some excitation ...
... frequency , and " Q " factors between 100 and 250 ( Q = 1/2 , where = damping ratio ) . With a spacing of 15 Hz between successive compressor orders , and the variation of 21 Hz between respective natural frequencies , some excitation ...
Contents
OFFSHORE PIPELINE TECHNOLOGY | 53 |
CODESSTANDARDS AND REGULATIONS | 75 |
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 89 |
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Alberta analysis applied Arctic assessment axial bending buckling buried pipelines calculated Canadian Standards Association coefficient construction corrosion crack criteria cylinder damage defects depth developed diameter displacement distribution effect elastic Engineering environmental equation equipment estimated evaluation failure probability fatigue finite element flow force fractile fracture fracture mechanics frequency frost heave frozen soil gas pipeline geometry hoop stress horizontal inspection installation interaction internal lift force Limit States Design load lognormal longitudinal maximum measured Mechanics meter methods offshore pipelines OMAE operation orifice orifice plate parameters permafrost pipe wall pipeline spans pipeline system Pipeline Technology ASME plastic predicted pressure ratio reliability S-N curve scour simulation SMYS solution specific standards steel strain structural Table Technology ASME 1992 temperature differential tensile tube bundle usage factor variable velocity profile vertical vibration volumetric flow rate vortex shedding wall thickness weld yield strength