109results about "Ship vibration reduction" patented technology

A flywheel front cover and a flywheel rear cover are buckled to form a vacuum spherical shell, front-end electromagnetic poles are evenly distributed on the inner side of the flywheel front cover, rear-end electromagnetic poles are evenly distributed on the inner side of the flywheel rear cover, permanent magnet magnetic poles are evenly distributed on an outer hub of a flywheel, and permanent magnet magnetic poles are evenly distributed on an inner hub of the flywheel rear cover. When a ship jolts and shakes due to the influence of storm waves or ocean currents, the flywheel rotates at a high speed in the vacuum spherical shell in the left-right direction of the flywheel shaft, large rotational inertia is generated when the flywheel rotates at the high speed, and through energy transmission of the right side supporting damping cylinder, the left side supporting damping cylinder, the right side supporting damping cylinder rod and the left side supporting damping cylinder rod, the flywheel can rotate at the high speed. The energy for driving the vacuum spherical shell to swing left and right and horizontally is consumed, so that the rolling amplitude and frequency of the ship are greatly reduced, the course stability is improved, and the rolling amplitude and frequency of the ship can be reduced.

The invention belongs to the technical field of welding platforms, and particularly relates to an immersed tube overwater welding operation platform which comprises a floating box, a welding supporting mechanism and a plurality of pipeline locking mechanisms, and the inner wall of the floating box is divided into nine air floating chambers through partition plates. The pipeline can float on the water surface to complete welding butt joint, butt joint of pipelines of different lengths is adapted, and the quality efficiency is guaranteed by monitoring the inclination state of the floating box and the welding platform in real time and adjusting the balance weight to prevent tipping and create a stable welding environment; stable fixed tension is provided, wind power and water flow influences are resisted, position deviation is prevented, reverse compensation force can be provided in cooperation with a propeller when large driving force is applied in one direction, fatigue damage of a traction rope due to continuous impact force is avoided, rapid water supply and drainage of the buoyancy tank are achieved, water is rapidly injected to increase the overall weight when large impact force is applied, and the tensile force of the traction rope is improved in a matched mode; the water flow pushing efficiency is reduced, the resistance stability is improved, and the positioning effect is optimized.

A marine eight-degree-of-freedom anti-swing gallery bridge stabilizing system comprises an anti-swing lifting system and a telescopic gallery bridge device arranged on the upper portion of the anti-swing lifting system. The anti-swing lifting device is fixedly connected with a deck of a ship body through a base, and the anti-swing lifting system is composed of a horizontal left-right rotating device arranged on the upper plane of the base, a transverse anti-swing longitudinal anti-swing device arranged on the upper portion of the horizontal left-right rotating device, and a longitudinal anti-swing device arranged on the lower portion of the base. The lifting devices are arranged on the left side and the right side of the transverse anti-swinging and longitudinal anti-swinging device and on the bottom base; the telescopic gallery bridge device is erected on a rolling platform at the upper part of a transverse anti-swinging device and a longitudinal anti-swinging device which are arranged between the left frame and the right frame of the lifting device in a stacked manner; the whole telescopic gallery bridge device can swing left and right, transverse and longitudinal state adjustment can be achieved under the action of the transverse anti-swing and longitudinal anti-swing device, and eight-degree-of-freedom regulation and control of the whole telescopic gallery bridge device can be achieved under the action of the lifting device.

The invention belongs to the technical field of ship equipment, and discloses a wave suppression device and a ship. The wave suppression device comprises a hinge four-bar mechanism, a spoiler sheet and a rotary driving part, and the rotary driving part drives the spoiler sheet to rotate through the hinge four-bar mechanism, so that the spoiler sheet has a working position extending into water. The rotary driving part is arranged above the water surface, and the sealing surface of the rotary driving part is separated from the seawater environment, so that the possibility that marine organisms are attached to the sealing surface of the rotary driving part is fundamentally avoided, and the maintenance frequency and the environmental protection risk are remarkably reduced. Besides, the rotary driving part is far away from a seawater corrosion environment and does not need to bear underwater pressure, so that the failure probability of the sealing part caused by seawater corrosion or mechanical shock is reduced, the working stability of the driving system is improved, and the service life of the driving system is prolonged.

The present invention relates to the field of hydraulic control technology, and provides a pump-controlled semi-active ship heave compensation hydraulic system and a control method thereof, wherein the system comprises: an active compensation hydraulic module, a passive compensation hydraulic module, a sensor module, a controller and a motion sensor; the passive compensation hydraulic module comprises a nitrogen bottle unit, an accumulator unit, a gas-liquid converter, a seventh electromagnetic reversing valve, a fourth electromagnetic reversing valve and a passive compensation asymmetric hydraulic cylinder; the active compensation hydraulic module comprises a third accumulator, a servo motor, a bidirectional quantitative hydraulic pump, a first check valve, a second check valve, an active compensation asymmetric hydraulic cylinder, a first electromagnetic reversing valve, a second electromagnetic reversing valve and a third electromagnetic reversing valve. The present invention integrates passive compensation and active compensation, greatly improving the compensation accuracy and efficiency; adopting an electro-hydraulic servo pump control method not only retains the advantages of high control accuracy of the valve control method, but also improves stability.

The invention discloses a floating type power transmission tower and a control method thereof. The power transmission tower comprises a floating platform, a tower body and a plurality of electromagnetic hydraulic dampers. A tower foot platform of the tower body is connected with the driving ends of the electromagnetic hydraulic dampers, and all the electromagnetic hydraulic dampers are arranged at the top of the floating platform; the electromagnetic hydraulic damper comprises a hydraulic cylinder, an electromagnetic fluid, a piston, a piston lever and a plurality of electromagnetic coils; the hydraulic cylinder is filled with electromagnetic fluid which changes damping force along with changes of external current signals. A piston arranged in the hydraulic cylinder divides the hydraulic cylinder into two cavities, the piston is provided with a fluid channel penetrating through the two cavities, and one end of the piston is fixedly connected with one end of a piston lever. The other end of the piston lever is a driving end; each electromagnetic coil is embedded in the position, surrounding the fluid channel, in the piston, and the electromagnetic coils are used for generating current signals. According to the floating type power transmission tower, impact and damage caused by sea stormy waves are reduced.

Methods and systems are provided for nautical stationkeeping of free-floating objects. In one example, a method includes adjusting translational motion of a body freely floating in water by rotating the body. The translational motion may be adjusted, for instance, to maintain the body within a geographic area. In certain examples, the adjustment of the translational motion may be realized via a Magnus effect induced by rotating the body. The body may be configured as, for example, a free-floating object such as a wave engine.

The present invention discloses a floating wind turbine foundation and wind turbine equipment. The floating wind turbine foundation includes at least one floating body unit, which includes an annular floating body and a sway reduction plate assembly. The sway reduction plate assembly includes at least two sway reduction plates arranged vertically. The sway reduction plates are provided with a plurality of first flow-disrupting holes. The first flow-disrupting holes penetrate the sway reduction plates along their thickness. The first flow-disrupting holes of two adjacent sway reduction plates are vertically staggered. The topmost sway reduction plate is connected to the annular floating body. The upper surface of the topmost sway reduction plate and the inner peripheral wall of the annular floating body enclose a receiving groove. The present invention can effectively reduce the shaking and heaving amplitude of the wind turbine foundation, improve the stability of the wind turbine foundation, and improve the anti-overturning effect.

This invention discloses a semi-submersible offshore platform with movable wave-breaking plates, belonging to the field of floating wind turbine turbulence. It comprises multiple platform components connected by trusses. Each platform component includes a column with a vertically oriented axis. Several movable wave-breaking plates are provided on the outer wall of the column, spirally distributed around the column's axis. Each movable wave-breaking plate includes an anti-roll plate fixed to the column's peripheral wall. A hinge is located at the lower end of the anti-roll plate; one side of the hinge is fixedly connected to the anti-roll plate, and the other side is connected to an arc-shaped cover plate. The hinge's rotation axis is horizontally oriented. The side of the arc-shaped cover plate facing the column's outer wall bulges upwards, allowing it to rotate around the hinge's axis under buoyancy. This invention can reduce vortex-induced motion and decrease platform oscillation.

The invention relates to the technical field of protection structures, in particular to overwater photovoltaic equipment with a protection function. The device comprises a floating platform, a plurality of supporting columns are fixed to the outer side of the top end of the floating platform, a supporting plate is fixed to the top ends of the supporting columns, a photovoltaic panel is fixed to the top end of the supporting plate, a plurality of buoyancy rings are fixed to the bottom end of the floating platform, and a plurality of L-shaped frames are slidably connected to the outer side of the interior of the floating platform; a guide sliding cylinder is fixed to the bottom ends of the L-shaped frames, and a telescopic cylinder is slidably connected to the inner side of the guide sliding cylinder. According to the overwater photovoltaic equipment with the protection function, a photovoltaic panel is assembled above a supporting plate, a floating platform floats on the water surface, an L-shaped frame, a buoyancy cylinder, a guide sliding cylinder and a telescopic cylinder float under the water surface, when sea waves push the floating platform, the L-shaped frame and the floating platform slide, and the floating platform is driven by the buoyancy cylinder to slide; and finally, the floating platform and the photovoltaic panel are pulled back through the L-shaped frame, so that the stability of the photovoltaic panel and the floating platform is maintained.

The invention relates to a heaving plate with adjustable damping, a floating platform and a control method thereof.The heaving plate comprises a plate body, a water passing adjusting hole penetrating through the upper end face and the lower end face of the plate body is formed in the plate body, the heaving plate further comprises an opening and closing adjusting device installed on the plate body, and the opening and closing adjusting device comprises a plugging piece and a driving mechanism; the blocking piece is used for blocking or opening the water passing adjusting open hole, and the driving mechanism is connected with the blocking piece and can drive the blocking piece to move and adjust the opening and closing degree of the water passing adjusting open hole. The heaving plate is arranged in the floating platform, the damping effect of the heaving plate can be adjusted according to actual needs, use is flexible, and the stability and use flexibility of the floating platform can be ensured.

The invention discloses an image recognition intelligent sensing type full-cavity magneto-rheological floating fan stabilization system and method. The system comprises an environment intelligent sensing module, a digital twinning module, a full-cavity magneto-rheological execution module and a central control module. The environment intelligent sensing module collects a wave image in real time and outputs a sea wave period; the digital twin module reconstructs a six-degree-of-freedom motion state of the variable floating type fan platform and a three-dimensional scene view of surrounding sea waves; the full-cavity magneto-rheological execution module moves and excites according to the sea wave period, the acting area and intensity of a magnetic field are adjusted, the chaining degree of magneto-rheological fluid is changed, and damping stepless adjustment is achieved. The central control module generates a corresponding control instruction and sends the control instruction to the full-cavity magneto-rheological execution module; according to the method, digital and physical double reproduction of floating type fan platform motion and the sea wave environment is achieved, self-adaptive damping adjustment can be accurately and rapidly conducted on broadband sea waves, and the power generation efficiency and platform safety are remarkably improved.

The present invention discloses a wave compensation ship and a compensation method thereof. The ship comprises a ship-type main body for navigation, a deck platform, and a compensation device. The compensation device is used to compensate the deck platform for waves. The ship-type main body comprises a plurality of hull units and a buffer connection device. A compensation device is arranged between each hull unit and the deck platform. The buffer connection device comprises a first servo cylinder. The first servo cylinder comprises a fixed pair and a movable pair. A spring damper is sleeved on the movable pair. One end of the spring damper is connected to the fixed pair, and the other end is fixedly connected to the movable pair. The fixed pair is hinged to the side of one hull unit, and the movable pair is hinged to the side of another hull unit. A plurality of mutually connected hull units are arranged to compensate the deck platform respectively, so that the compensation is more flexible. A buffer connection device is adopted between the hull units. The lateral compensation can be realized by telescoping the buffer connection device, thereby increasing the compensation range and improving the ability of the hull to maintain stability when encountering strong lateral winds and waves.

The invention discloses an offshore wind power floating type foundation, a wind power assembly and a preparation method, and belongs to the field of offshore wind power. The offshore wind power floating type foundation comprises a first stand column, a second stand column and a third stand column which are arranged at intervals in a surrounding mode; the heaving disc is connected with one end of the first stand column; the buoy is connected between one end of the second upright post and one end of the third upright post; the deck pipe is connected between the other end of the first stand column and the other end of the second stand column; wherein the heaving disc and the buoy are the same in structure, each of the heaving disc and the buoy comprises a double-layer pipe and concrete filled in the double-layer pipe, the double-layer pipe of the heaving disc is connected with one end of the first stand column, and the double-layer pipe of the buoy is connected between one end of the second stand column and one end of the third stand column. The floating device has the technical effects that the structure is simple, and the floating stability is good.

The present invention relates to the technical field of offshore aquaculture equipment, and more specifically, to a deep-sea aquaculture equipment, comprising aquaculture equipment and a buoyancy buffer device, wherein the buoyancy buffer device comprises a buffer frame assembly and a float; the buffer frame assembly comprises a space truss, a fixed frame, an elastic buffer assembly and a damping assembly, the two sides of one end of the space truss are connected to the fixed frame, the two sides of the other end of the space truss are connected to the two ends of the elastic buffer assembly, and the damping assembly is located between the fixed frame and the elastic buffer assembly. The present invention uses a float to stably float the entire equipment on the sea surface, dilutes the external force of wind and waves by providing a buoyancy buffer device, utilizes the good wind and wave resistance of the space truss for buffering in the buoyancy buffer device, and improves the overall tolerance limit of the buffer frame assembly by connecting the space truss with the fixed frame, the elastic buffer assembly and a number of damping assemblies, thereby preventing the external force of wind and waves from affecting the aquaculture equipment and allowing the entire equipment to have better wind and wave resistance.

The invention belongs to the technical field of semi-submerged platforms, and discloses a transverse supporting structure and a semi-submerged platform, the transverse supporting structure comprises two transverse supporting pieces which are arranged in the transverse direction of the semi-submerged platform and arranged in the longitudinal direction of the semi-submerged platform at intervals, and the two transverse supporting pieces are located between two stand columns of the bow or the stern of the semi-submerged platform; each transverse supporting piece is used for being connected with two stand columns of the bow portion or the stern portion of the semi-submersible platform. The heaving plate is arranged between the two transverse supporting pieces and connected with the two transverse supporting pieces, and first reinforcing ribs are arranged on the heaving plate. According to the cross arm structure, the heaving, rolling and pitching periods of the semi-submerged platform can be prolonged, resonance, equipment damage and the like caused by the fact that the inherent period of the semi-submerged platform is close to the wave period are avoided, the motion response of the semi-submerged platform is reduced, and the seakeeping performance of the semi-submerged platform is improved.

The invention discloses a floating body type wind power generation device, and relates to the technical field of distribution box assembly. The outdoor distribution box assembling device comprises a base, and the top of the base is movably connected with a bottom plate; the surface of the turnover fixing plate is movably connected with a side plate; the side face of the overturning fixing plate is fixedly connected with an arc-shaped pushing block, the side face of the arc-shaped pushing block is movably connected with a first hydraulic block, the bottom of the first hydraulic block is fixedly connected with a second hydraulic block, and the rear side of the second hydraulic block is movably connected with a limiting sliding block through the first pushing block. The other end of the first hose is fixedly connected with a third hydraulic block, and the side face of the third hydraulic block is fixedly connected with a fourth hydraulic block. According to the outdoor distribution box assembling device, through compression of a first hydraulic block, a second hydraulic block, a first push block, a limiting sliding block, a first hose, a third hydraulic block and a fourth hydraulic block, the base and the ground are kept in a fixed state while the bottom plate is fixed, and the device is more stable.

The present application provides a self-resetting device and method suitable for vibration reduction of a floating vertical-axis wind turbine. The device includes an inertia component, a damping component, a support component, and a friction component; the friction component realizes friction energy dissipation and vibration reduction through the friction between the arc-shaped tower base at the bottom of the central tower and the U-shaped groove, and uses the self-weight of the wind turbine to fall back to the bottom of the U-shaped groove to realize the automatic reset function; the inertia component realizes the inertia enhancement of the device by arranging the spoiler and the heaving plate in seawater; the damping component realizes functions such as energy dissipation and vibration reduction and automatic reset through the stretching and compression deformation of a plurality of damping springs; the support component separates the upper wind turbine and the lower floating platform, achieving the effect of adopting different vibration suppression measures for different excitation sources; the device can take corresponding measures for different positions of the wind turbine to perform efficient vibration control, improving the overall operation safety performance of the wind turbine.

The invention discloses an offshore wind power platform and an offshore wind power system, and relates to the technical field of wind power generation. The supporting column is used for supporting the fan; the floating barrels are distributed around the supporting column at intervals, and the floating barrels are connected with the supporting column through connecting pieces; the damper is used for being connected with the bottom of the supporting column so as to restrain vertical displacement of the supporting column. According to the offshore wind power platform, vertical displacement of the supporting columns can be prevented and restrained through the dampers arranged at the bottoms of the supporting columns, so that the risk of fan shaking caused by sea waves is reduced, and compared with the mode that fan shaking is reduced through a water ballast space, the response speed is higher, and the stability of the offshore wind power platform is improved.

The invention provides a self-resetting device and method suitable for vibration reduction of a floating type vertical axis fan. The device comprises an inerter assembly, a damping assembly, a supporting assembly and a friction assembly. The friction assembly achieves friction energy dissipation and vibration reduction through friction between the arc-shaped tower footing at the bottom of the central tower column and the U-shaped groove and falls back to the bottom of the U-shaped groove through the gravity of the draught fan, and the automatic reset function is achieved. The inerter component realizes inerter synergy of the device by arranging a spoiler and a heaving plate in seawater; the damping assembly achieves the functions of energy dissipation, vibration reduction, automatic reset and the like through stretching and compression deformation of a plurality of damping springs. The upper draught fan and the lower floating type platform are separated through the supporting assembly, and the effect that different vibration suppression measures are adopted for different excitation sources is achieved. According to the device, corresponding measures can be taken for different positions of the fan to carry out efficient vibration control, and the safety performance of overall operation of the fan is improved.

The present invention discloses a wave-breaking and current-reducing device suitable for offshore photovoltaic systems in port areas, comprising a frame structure, wherein a wave-breaking and current-reducing power generation device and a current-reducing power generation device are continuously installed along the length direction of the frame structure; the wave-breaking and current-reducing power generation device comprises a spring, a lifting plate, a first power generation system, a first mounting frame, and a slide rail; a limiting sleeve that slides with the slide rail is fixedly provided on the side end of the lifting plate, and a rack is fixedly connected to the limiting sleeve, and the rack can be inserted into the coil of the first power generation system during movement; the current-reducing power generation device comprises a vibrator, a spring limiting layer, and a second power generation system; a rack is fixedly connected to one end of the vibrator corresponding to the second power generation system, and the rack can be inserted into the coil of the second power generation system during movement. The present invention aims to provide a wave-breaking and current-reducing device that can effectively reduce the impact of waves and tidal currents on photovoltaic platforms, and can also utilize wave energy and tidal current energy to generate electricity, thereby achieving dual utilization.

The invention discloses a flexible breakwater system which is located in a ship stern cabin and arranged in a bilateral symmetry mode and comprises a breakwater, a charging and discharging mechanism, a retracting and releasing mechanism used for conveying the breakwater, an anchoring mechanism used for connecting the breakwater with a ship and recycling the breakwater and a control system. The breakwater is a bag body capable of being filled with gas and liquid; the folding and unfolding mechanism comprises a conveying guide rail for transporting the breakwater; the control system responds to a pressure signal of the breakwater and synchronously adjusts the medium flow of the filling and discharging mechanism, the dip angle and speed of the conveying guide rail and the tension of the anchoring mechanism. Compact folding of a ship-borne space is achieved through an air bag and water bag structure connected through a hinge, a synchronous operation chain of bag body filling and discharging, sliding into water and triangular anchoring is formed by combining an inclination angle adjustable guide rail and a pressure feedback cooperative control system, rapid laying and accurate positioning of the breakwater under the high sea condition are achieved, the wave absorbing efficiency of a ship stern operation area is improved, and the wave absorbing effect of the ship stern operation area is improved. And the task success rate and the operation safety of the amphibious ship under the severe sea condition are obviously improved.

The invention relates to various methods and systems for controlling the inclination of a rocking structure. One method concerns adjusting a force applied by an electric machine to a mass coupled to the rocking structure. The method is based on executing a control that uses a dynamic model and indicative parameters of the position of the mass and of an angle of inclination of the rocking structure to adjust the force applied by the electric machine to the mass. The invention also relates to a system for carrying out the method. Another method relates to adjusting the transmission ratio between a mass coupled to the structure and a rotor of an electric machine. A further method relates to adjusting the curvature of a guide for mechanically coupling a body to the rocking structure.

The invention discloses an FLNG-LNGC combined loading and unloading operation control method and system based on real-time working condition feedback, and the method comprises the steps: firstly constructing a system state space with time-space synchronization, and collecting the time calendar of a wave field and the motion response of a ship body; and reconstructing an instantaneous wave energy spectrum, resolving ship body modal parameters, and calculating a frequency detuning safety factor. When the resonance risk exists, the system executes asymmetric loading path planning based on frequency detuning optimization, and the rotational inertia of the ship body is changed by adjusting cabin flow distribution so as to shift the inherent frequency; and meanwhile, a gas-liquid coupling active suppression instruction containing variable stiffness pressure modulation and pulse momentum damping is generated, the recovery stiffness is changed through gas phase pressure, and damping torque is generated through fluid momentum. And finally, the instructions are synthesized to drive an execution mechanism. Active regulation and control of ship body modal frequency and instant dissipation of wave disturbance are achieved, the resonance risk is effectively reduced, and the stability of double-ship operation under the severe sea condition is improved.

The invention belongs to the technical field of vibration and noise reduction of surface ships and underwater vehicles, and discloses a pose control method and system for an air bag supporting flexible buoyant raft vibration isolation system, and the method comprises the steps: obtaining the actual observation positions of a plurality of measurement points on a raft frame; according to the actual observation position, fitting by utilizing an iterative reweighted least square method to obtain a reference datum plane of the raft frame; rigid body displacement corresponding to the measuring points is obtained based on the reference datum plane, elastic deformation displacement corresponding to the measuring points is obtained according to the actual observation positions and the rigid body displacement, and then rigid body displacement and elastic deformation displacement corresponding to the air bag are obtained; and constructing an index system according to the rigid body displacement, the elastic deformation displacement and the pressure corresponding to the air bag, and determining the to-be-adjusted air bag based on the index system. According to the method, the calculation of the reference datum plane more conforming to a novel mounting process and the rigid body displacement and the elastic deformation displacement of the approximate separation raft frame are realized, more comprehensive indexes are provided, and the accuracy of air bag selection is improved.

The invention relates to a system (2) for forming an anchoring point for a floating body of an offshore wind turbine, comprising at least one capsule (6) having an open bottom (8) and an open top (10), which capsule is at least partially filled with a solid particulate material (12) capable of withstanding shear forces with the seabed (4) on which the capsule is intended to sit, the capsule further comprises at least one attachment (14) for securing a mooring line (16) of the floating body.

The application provides a water photovoltaic system and an arrangement method thereof, which comprises a ring-shaped wave-preventing slope, a plurality of integrated fan-shaped floating plates are arranged in an array along the axis of the ring-shaped wave-preventing slope, the same connecting disc is fixedly connected to the ends of the plurality of integrated fan-shaped floating plates away from the ring-shaped wave-preventing slope, the fixed seat and the piston float are abutted through extrusion springs, the piston float is provided with a one-way air inlet valve for pumping water into the buffer groove from the outside, and the blocking net is retracted in the blocking net groove arranged in the upper portion of the ring-shaped wave-preventing slope. The ring-shaped wave-preventing slope is arranged around the floating photovoltaic device, which can effectively weaken the large fluctuation of the photovoltaic floating plate caused by the fluctuation of the water surface in each direction, and can also absorb the large fluctuation of the internal water surface through the lifting of the piston float, convert the energy generated by the water surface into the kinetic energy of the lifting of the blocking net, further prevent the photovoltaic assembly in the internal from being washed away under extremely complex conditions, and effectively ensure the safety of the water floating photovoltaic assembly.

The invention provides an active yaw adjusting system and method for a floating platform, the active yaw adjusting system comprises a monitoring unit, an anchor cable control system and three anchoring units, the three anchoring units are installed on three linear type buoys of the floating platform respectively, each anchoring unit comprises a linear guide rail, a movable anchor gear and an anchor cable, the linear guide rail extends in the length direction of the linear buoy, the movable anchor gear can move along the linear guide rail and can be locked on the linear guide rail, one end of the anchor cable is installed on the movable anchor gear, the other end of the anchor cable is provided with an anchoring part arranged on the water bottom face, and the movable anchor gear can take back or pay off the anchor cable. The included angle between the linear guide rails of every two adjacent anchoring units is 60 degrees. The control system is in control connection with the movable anchor machines of the three anchoring units; the monitoring unit is in communication connection with the control system and comprises a wave monitoring mechanism used for obtaining the period and direction of waves and a platform angle detection mechanism used for monitoring the direction of the floating platform.

A suspension system for a vessel (1) is disclosed, the vessel having at least one port hull (11), at least one starboard hull (12), and a underframe portion (10). The suspension system includes: supports (20) for at least partially supporting the underframe portion relative to the port and starboard hulls; and a left front damping plunger and a left rear damping plunger (31, 33) connected between the underframe portion and longitudinally spaced points on the at least one port hull, and a right front damping plunger and a right rear damping plunger (32, 34) connected between the underframe portion and longitudinally spaced points on the at least one starboard hull. The suspension system further includes a deck attitude control system (250) comprising a controller (252) for each of at least two orthogonally spaced damper plungers, sensors, and corresponding actuator devices. These actuators control the position of at least one point on the underframe relative to at least one reference.

The present invention discloses a floating transmission tower and its control method. The transmission tower includes: a floating platform, a tower body, and a number of electromagnetic hydraulic dampers; the tower foot platform of the tower body is connected to the driving end of the electromagnetic hydraulic damper, and each electromagnetic hydraulic damper is arranged on the top of the floating platform; the electromagnetic hydraulic damper includes a hydraulic cylinder, an electromagnetic fluid, a piston, a piston rod, and a number of electromagnetic coils; the hydraulic cylinder is filled with an electromagnetic fluid whose damping force changes with the change of an external current signal; the piston arranged in the hydraulic cylinder divides the hydraulic cylinder into two chambers, the piston is provided with a fluid passage penetrating through the two chambers, and one end of the piston is fixedly connected to one end of the piston rod; the other end of the piston rod is the driving end; each electromagnetic coil is embedded in the piston at a position surrounding the fluid passage, and the electromagnetic coil is used to generate a current signal. The floating transmission tower provided by the present invention reduces the impact and damage caused by sea winds and waves.