m2, 5) wave parameters: wave height = 10 m, wave period = 12.5 sec, 6) current speed = 1.0 m/sec, 7) wind speed = 60 m/sec, 8) drag coefficient of float = 1.17, 9) coefficient of inertia of float = 2.0, 10) density of sea water = 1.03 t/m3, 11) acceleration of gravity = 9.8 m/sec2, 12) drag coefficient of rectenna antenna = 2.0, 13) projectional area of a rectenna array = 12.38 m x 200 m, 14) rate of effective projectional area of rectenna = 50%. The result of the calculations are as follows: [1] current force = 1,536 tons/unit, [21 wave force = 24.125 tons/unit, [3] wind force = 17.827 tons/unit. Therefore, each unit is subject to a total external force of 43,488 tons. If safety factor of 3 is used for design loading, approximately 130,000 tons of mooring force has to be considered for each unit. It should be mentioned that these estimations are rough and subject to verification by model experiments and analytical models. PROBLEMS TO BE STUDIED Mooring Since each unit is subject to 130,000 tons of design load, the mooring line and mooring system become quite huge and complex. To solve these, a mooring line of light, strong and corrosion resistant material has to be developed in relation to the proper mooring system.
RkJQdWJsaXNoZXIy MTU5NjU0Mg==