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JP2947759B2 |
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JPH11240488A |
To enhance anti-rolling effect on a floating object which is placed when difference in tides is great by providing a box having a flat plate at the lower end of a supporting portion provided below a bottom of the floating object and inst...
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JPH11235998A |
To provide a power boat with a trim tab which can reduce noise level. This power boat is provided with a hull 27 involving a stern, an engine 13 which is mounted on the hull to propel the boat and involve a means for discharging fluid in...
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JPH11227686A |
To reduce rolling of a hull generated by waves (incident wave) by setting a buoy onto the water in such a way as swung out to outside the hull, and thereby altering the characteristics (tuning point) of the hull. A pair of swingout mecha...
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JP2934564B2 |
PURPOSE: To use as information of steering a ship by obtaining an absolute wave height from a vertical displacement of a bow obtained by a vertical acceleration sensor and an output of a wave height gage, generating its power spectrum, s...
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JPH11208583A |
To control the shaking of an end part in a large-scale floating body without receiving any influence of a tide level. This is a shaking controlling method of a large-scale floating body, which is made up so as to control the vertical sha...
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JP2598226Y2 |
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JP2923158B2 |
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JP2915798B2 |
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JP2915658B2 |
PURPOSE:To perform simple and reliable reduction of the oscillation angle of a ship hull by a method wherein the control system of a fin stabilizer forms a fuzzy control system, and when a fin is operated in a direction in which the osci...
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JP2915783B2 |
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JPH11173375A |
To provide an oscillation reduction device having a stop fixing device. A stop fixing device of an oscillation reduction device has a friction member mounted on a movable mass 21 and a member 40 which is arranged along track members 11A,...
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JPH11173374A |
To provide a horizontal oscillation reduction device which has a small height. A movable mass 21 is supported by three bearings 12A to 12C at three points on two track members 11A, 11B. Since a wire 15 and a pulling spring 16 mounted on ...
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JPH11171088A |
To sufficiently enlarge a resistor for reducing the rocking of a hull during anchorage without structural restrictions as the case of a bilge keel so as to improve anti-rolling effect by a large margin by housing the resistor onboard at ...
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JPH11165690A |
To reduce elastic deformation due to wave. This floating body 30 is so constructed that a number of box- shaped units 12 welded with a main bloating body 32 are jointed by a plate- shaped structure 14. A wave receiving block 34 is provid...
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JP2595391Y2 |
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JPH11139386A |
To provide a variable period type anti-rolling water tank device having a high anti-rolling effect and being easy to control. In a variable period type anti-rolling water tank device having an anti-rolling water tank, which has a pair of...
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JPH11129986A |
To insure reliability in strength without causing increase of weight and cost by supporting a hook lever so as not to generate large bending stress on the hook lever holding the rotational moving shaft of a fin in the locked condition, e...
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JP2891527B2 |
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JPH11124083A |
To effectively reduce vertical motion using a flanged protrusion in wavy seas as well as reduce resistance to tidal currents in calm seas, by fixing a foldable flanged protrusion to the outer cylindrical surface of a floating structure u...
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JP2594845Y2 |
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JPH11115884A |
To provide the draft data of a position, in which a draft gauge fails, by computing the draft of a position, in which measurement by a measuring means is impossible, on the basis of the measurement value, and automatically performing the...
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JPH11115883A |
To prevent the generation of vibration while receiving greater resistance at the time of moving a blade downward by forming cross section of a stabilizer blade into a stream-line having a camber line, and forming a rear part of the stabi...
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JPH11105782A |
To provide a hydrofoil structure which can attain oscillation reduction in a hydrofoil ship, and little flow resistance as well as easy maintenance and inspection. This catamaran ship is provided with a hull 1 constituted of two-bodies 1...
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JPH1194017A |
To prevent the generation of noises, reduce the number of part items and manufacture inexpensive productions. A lengthy casing 1 is provided, which is bent with specified curvature while its center of curvature is located to the upper si...
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JPH1182614A |
To make the phase of a weight adjusted to an ideal state, even if the natural preriod of a structure is changed and make a gravity component unnecessary to be considered as the control force of the weight, even if the structure is slante...
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JPH1179076A |
To provide a hull motion monitoring device with hull oscillation predicting function, for which weather and marine forecast values are taken into consideration. A data monitoring device 3 to monitor data for the motion of a hull in a fix...
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JPH1159577A |
To allow a fin drive system to function its ability to the maximum extent when the control of the fin drive system exceeds its limit by obtaining an output mode which can set a proper value in a hardware capacity of the fin drive system....
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JPH1159579A |
To reduce steers man burden for discovering a failure, monitoring and judgement by displaying the monitoring of an operation condition of a local controller, the acquisition of data from measuring instrument of a whole ship, and the judg...
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JPH1159576A |
To provide a craft with excellent steerability by preventing the yawing at the stern in a water jet propulsion craft. In a water jet propulsion craft, a plate-like stabilizing fin 7 is provided along the advancing direction of the craft ...
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JPH1159581A |
To reduce the swing of a hull even when a ship is in a stopping state and to prevent the damage of the hull by providing a buffer mechanism at a lower end of a piston rod of a fluid cylinder mechanism, attaching a strut to the buffer mec...
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JPH1159578A |
To utilize fin drive capacity to the maximum extent and to control the swing of a hull efficiently by selecting the optimum drive pattern which corresponds to a cycle of waves and outputting a drive pattern at wave timing detected separa...
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JPH1159580A |
To reduce the swing of a hull even when a ship stops and avoid the damage thereof due to the generation of lift of horizontal motion component obtained at the time when a hydrofoil attached to a lower part of a slat performs swing motion...
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JPH1120775A |
To decrease the rocking of a hull, and increase the dead weight of the hull by providing a strut fitted below the hull, and a double-hydrofoil fitted to the lower part of the strut. The upper end of a strut 2 is supported by the stem par...
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JPH1120785A |
To reduce the oscillation of a hull under stoppage by generating a lift on a hydrofoil. A hydrofoil of a ship is formed with an upper and lower hydrofoils 3 and 4 installed on the underside of struts 1 and 2 attached under a hull, respec...
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JPH1120786A |
To reduce the oscillation of a hull during its navigation and stoppage. A hull oscillation reducing device comprises a hydrofoil 1 installed on a hull in lateral direction, struts 9 and 10 extended downwards from the hull for supporting ...
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JPH1111386A |
To prevent both the pitching and the rolling when a hull is navigating or stopped by fitting a strut downwardly at an end part in the longitudinal direction of the hull, and fitting a movable hydrofoil which is turnable in the downward d...
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JPH1111387A |
To prevent the rolling of a hull by providing a hydrofoil comprising a separation foil which is provided in the center of the hydrofoil and separates the section of the hydrofoil in the ship breadth direction, and an auxiliary foil which...
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JPH1111385A |
To prevent the pitching when a ship is stopped by performing the pendulum motion of a hydrofoil by a strut to support the hydrofoil to generate the hull pitching and the moment in the reverse direction. In a strut 2 extended from a ship ...
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JPH1111384A |
To prevent the pitching when a ship is stopped by reciprocating a strut having a hydrofoil at its forward end in the diagonal direction with the reverse phase to the pitching phase of a hull. A strut 2 fitted with a hydrofoil 3 on its fo...
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JP2588463Y2 |
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JP2846015B2 |
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JP2844268B2 |
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JP2840567B2 |
The method reduces to a small value the alternate movement of surging due to the swell between side by side floating (2) and fixed marine structures (1). It consists of installing on the floating structure stops (9 - 12) which can be pla...
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JPH10329787A |
To precisely swing prevention control taking account of an acceleration component caused by rolling of a vessel body. Rolling of the body of a work vessel is detected by a vessel body inclination detecting means 12, a basic acceleration ...
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JP2836738B2 |
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JPH10324292A |
To provide a motorboat having good high-speed operational stability and a small turning radius function and an off-road motorbarrow. A motorboat equipped with wings is constructed in such a manner that wings 9a and 9b having auxiliary wi...
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JPH10316088A |
To equalize buoyancy applied to each region even by swell by disposing plural float structures on the lower side of a water surface structure respectively through an expansible cylinder member, and keeping constant the pressure in a cyli...
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JP2828459B2 |
A floating structure (11) with completely or partially submersible pontoons that provide the buoyancy for an offshore drilling platform, with a deck that is located on columns (13) attached to the pontoons. A separate, submerged ballast ...
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JP2813540B2 |
PURPOSE: To provide an oscillation damping device for vessel simplified in structure facilitated in maintenance, and minimized in the fear of deteriorating in performance. CONSTITUTION: The flywheel 1 of a control moment gyro is supporte...
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