Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 18, Part 6American Society of Mechanical Engineers, 1999 - Arctic regions |
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Page 22
... mode ( 1,1 ) mode ( 2,1 ) mode Modal coordinate 3 4 0 0 200 400 600 800 1000 r ( m ) modal contributions ( 1,2 ) mode ( 1,3 ) ' mode ( 1,1 ) mode 100 200 300 400 500 600 700 800 900 1000 r ( m ) total displacement Fig.5 Standard ...
... mode ( 1,1 ) mode ( 2,1 ) mode Modal coordinate 3 4 0 0 200 400 600 800 1000 r ( m ) modal contributions ( 1,2 ) mode ( 1,3 ) ' mode ( 1,1 ) mode 100 200 300 400 500 600 700 800 900 1000 r ( m ) total displacement Fig.5 Standard ...
Page 23
Mode shape amplitude 0.5 ( 1,1 ) mode ( 1,2 ) mode 200 400 600 800 1000 -0.5 ( 1,3 ) mode -1 r ( m ) Fig . 8 Wet mode shapes in the radial direction along 0 = 0 Modal coordinate ~ 3 4 5 0 100 200 300 400 500 600 700 800 900 1000 ( a ) ...
Mode shape amplitude 0.5 ( 1,1 ) mode ( 1,2 ) mode 200 400 600 800 1000 -0.5 ( 1,3 ) mode -1 r ( m ) Fig . 8 Wet mode shapes in the radial direction along 0 = 0 Modal coordinate ~ 3 4 5 0 100 200 300 400 500 600 700 800 900 1000 ( a ) ...
Page 24
... mode shape in controlled modes . 3. The control spillover of uncontrolled modes does not occur if actuators are located at node circles of wet mode shape in uncontrolled modes . It becomes large with the increase in control force . 4 ...
... mode shape in controlled modes . 3. The control spillover of uncontrolled modes does not occur if actuators are located at node circles of wet mode shape in uncontrolled modes . It becomes large with the increase in control force . 4 ...
Contents
VERY LARGE FLOATING STRUCTURE | 1 |
OMAE99OSU3057 | 9 |
OMAE99OSU3058 | 17 |
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amplitude analysis angle applied ASME assumed bending body bottom buoy buoyant cable cage calculated coefficient compared component considered construction Copyright cost deck deflection depth developed diameter direction displacement distribution domain dynamic effect elastic element energy Engineering equation estimate experiment experimental Figure fish floating structure flow fluid frame frequency function given grid horizontal hydrodynamic hydroelastic incident wave increases International Japan length lift force linear loading located mass maximum mean measured Mechanics meters method modal mode mooring motion navigation obtained Ocean Offshore operate period pipeline position presented pressure pump Qmax relative represented resonant respectively response robot scale shoreline shown shows significant simulation spectrum surface surge Table tank tension Theseus towed unit University vehicle velocity vertical wave height wind