Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 1; Volume 7, Part 1American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 291
... mode periods were heavily influenced by the base width . A 25 % change in base width resulted in a 30 % change in first mode period and 23 % change in second mode period . The wider the base , the lower the periods . · Leg area Only the ...
... mode periods were heavily influenced by the base width . A 25 % change in base width resulted in a 30 % change in first mode period and 23 % change in second mode period . The wider the base , the lower the periods . · Leg area Only the ...
Page 292
... mode in the lower part of the structure , but oppose the sway - type mode loads in the upper portion of the jacket . The opposite pattern is discernable at the time of maximum overturning moment . The two dominating modes , the bow ...
... mode in the lower part of the structure , but oppose the sway - type mode loads in the upper portion of the jacket . The opposite pattern is discernable at the time of maximum overturning moment . The two dominating modes , the bow ...
Page 347
... mode or higher . For long or heavily tensioned beams , the variation of dimen- sionless natural frequency parameter with dimensionless tension parameter was expressed in a simple analytical form . For such beams , in the first few modes ...
... mode or higher . For long or heavily tensioned beams , the variation of dimen- sionless natural frequency parameter with dimensionless tension parameter was expressed in a simple analytical form . For such beams , in the first few modes ...
Contents
FLOATING PRODUCTION SYSTEMS | 1 |
OFFSHORE MECHANICS | 23 |
Early Production Systems in the North | 31 |
Copyright | |
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analysis angle applied axial bending cable calculated characteristics coefficient components Conference connected considered construction cost curve damage depth determined diameter direction displacement distribution dynamic effect element energy Engineering equation equipment fatigue field Figure flexible flow forces frequency function geometry given important included increase installation International joint length limit linear load lower mass material matrix maximum mean measured Mechanics method mode mooring motion natural normal obtained Offshore operation parameters performance period pile pipe pipeline platform position presented pressure problem production range ratio response riser shear shown shows significant soil static stiffness strength stress structure surface Table Technology tension tower turbine vane vessel wave weight wire