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 5 2 1 ( 1,3 ) ' mode 0 ( 1,2 ) mode ( 1,1 ) mode 0 200 400 600 800 1000 r ( m ) modal contributions total displacement Fig.5 Standard deviations of vertical displacement response and ...
... mode ( 1,1 ) mode ( 2,1 ) mode Modal coordinate 3 5 2 1 ( 1,3 ) ' mode 0 ( 1,2 ) mode ( 1,1 ) mode 0 200 400 600 800 1000 r ( m ) modal contributions total displacement Fig.5 Standard deviations of vertical displacement response and ...
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 5 Modal coordinate - 2 4 3 0 100 200 300 400 500 600 700 800 900 1000 r ( m ) ...
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 5 Modal coordinate - 2 4 3 0 100 200 300 400 500 600 700 800 900 1000 r ( m ) ...
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 |
Copyright | |
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1st-order 2nd-order acoustic amplitude anchor angle Arctic Engineering ASME buoy buoyant body cable element cage bottom calculated central spar cage component compression chamber Copyright deflection diameter distribution Drain Pipeline dynamic equation estimate Figure fish cage flow coefficient fluid function Gauge Number gravity-type grid heave horizontal hydrodynamic hydrodynamic pressure hydroelastic response incident wave irregular waves Japan large floating structures length lift force linear loading located mean wave measured Mechanics and Arctic MEGA-FLOAT meters method modal coordinate mode shape mooring force mooring lines mooring system navigation obtained Ocean Engineering Offshore Mechanics pump Qmax radar RAO(Heave/Wave amp resonant duct response amplitude operators robot semisubmersible sensor shoreline shown in Fig significant wave height simulation spectra spectrum surface Tension Leg tether Theseus towed transponder U-Pipe Bundle unit deck vector vehicle velocity vertical displacement VLFS WaMOS wave conditions wave period wave power wind