CN103895833A

CN103895833A - Flexible transverse-shaft fin stabilizer

Info

Publication number: CN103895833A
Application number: CN201410120595.4A
Authority: CN
Inventors: 温强; 徐大颖; 任小雪; 杨雄; 李翠翠; 毛成林; 王佳松
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2014-03-28
Filing date: 2014-03-28
Publication date: 2014-07-02
Anticipated expiration: 2034-03-28
Also published as: CN103895833B

Abstract

The invention provides a flexible transverse-shaft fin stabilizer. The flexible transverse-shaft fin stabilizer comprises a fin shaft and two hydraulic cylinders, wherein the fin shaft is mounted on a flexible fin face of the fin shaft, two support structures are arranged inside the fin face, the fin shaft and a bow buttcock line of a ship are parallelly mounted on the ship, the hydraulic cylinders are controlled by a controller, cylinder rods of the two hydraulic cylinders are hinged to the two support structure, and cylinder bodies of the two hydraulic cylinders are hinged onto the ship. Whenever the ship is still or moving, the shape of the fin face can be adjusted by extension of the hydraulic cylinders, swinging can be realized to drive the fin face to transversely swing around the fin shaft so as to generate transverse torque and achieve the purpose of reducing transverse rolling. The flexible transverse-shaft fin stabilizer has the advantages of large generated lifting force, small resistance, low noise and energy loss and the like.

Description

A kind of flexible transverse axis fin stabilizer

Technical field

What the present invention relates to is a kind of device that reduces ship rolling, specifically a kind of flexible transverse axis fin stabilizer.

Background technology

The most frequently used and the most successful boats and ships active stabilizer of application is stabilizer at present, and stabilizing efficiency can reach more than 90%.High-speed ship is generally all equipped with stabilizer.But while only having the speed of a ship or plane of boats and ships higher, stabilizer just can effectively subtract and shake, boats and ships are in the low speed of a ship or plane or zero speed of a ship or plane situation, and stabilizer almost can not subtract and shake.Along with the development of ocean engineering, the boats and ships that need to act under zero speed of a ship or plane are more and more in recent years, in order to complete marine fixed point effect under stormy waves condition, subtract and shake in the urgent need to carrying out zero speed of a ship or plane.It is similar to fixed wing aircraft that but existing stabilizer produces the principle of lift, only has when producing lift in the incoming flow of fin in certain speed, and under zero speed of a ship or plane condition, stabilizer upper and lower surface difference of pressure is zero, cannot produce lift.

Since 1998, some research institutions of the U.S. and Holland subtract to zero speed of a ship or plane problem of shaking and have carried out exploratory investigation, more feasible scheme is under the middle high speed of a ship or plane, stabilizer to be worked in a conventional manner at present, and the periodic vibration by stabilizer produces lift under the low speed of a ship or plane or moored condition, so only need design and maintenance one cover system just can realize any speed of a ship or plane and subtract and shake.The Quantum shipbuilding engineering company of the U.S. has developed the zero Speed Fin Stabilizer system based on above scheme in 2002, experiment and practical effect show that this system has the zero good speed of a ship or plane and subtracts the ability of shaking.At home, in recent years 704 research institutes of China Shipbuilding Industry Corporation have have successfully researched and developed domestic first and have overlapped telescopic stabilizer, be described as the stabilizer of " shark's fin peculiar to vessel ", it is the indispensable device that boats and ships keep security posture in wind and waves, " be able to stoop or to stand " in hull both sides, realize resistance little, account for cabin few, lightweight, some colleges and universities and research institution have carried out exploring energetically to zero Speed Fin Stabilizer, originally studied the mechanism that can produce effective lift under the low speed of a ship or plane or zero speed of a ship or plane state, propose to adopt zero Speed Fin Stabilizer of Weis-Fogh structure, provide based on the anxious zero Speed Fin Stabilizer system of clapping mode of operation of single-blade by further research subsequently, but boats and ships stabilizing efficiency under the low speed of a ship or plane or zero speed of a ship or plane is not clearly.

Summary of the invention

The flexible transverse axis fin stabilizer that the object of the present invention is to provide a kind of lift of generation large, resistance is little, noise is little, degradation of energy is little.

The object of the present invention is achieved like this:

Comprise fin axle, be arranged on the fin face on fin axle, described fin face is flexible fin face, in fin face, be furnished with two supporting constructions, parallel being installed on ship of bow buttock line of fin axle and ship, also comprise two hydraulic actuating cylinders by controller control, the cylinder bar of two hydraulic actuating cylinders is hinged with two supporting constructions respectively, and the cylinder of two hydraulic actuating cylinders is aboard ship hinged.

No matter boats and ships still have in speed of a ship or plane situation at zero speed of a ship or plane, this device can be regulated and controled the shape of fin face and be realized swing by hydraulic cylinder extension, thereby drive fin face around the teeter of fin axle, produce rolling moment, reach the object of rollstabilization, because fin face is around the teeter of fin axle, the upstream face little (vertical section of fin) of fin is little and can produce larger rolling moment to the resistance of boats and ships, so reduced the coupling of propulsion system and sway stabilisation system, can improve the road-holding property of boats and ships, this device adopts flexible material, resistance to boats and ships in the time that fin swings reduces, improve the effect that produces rolling moment, this flexibility transverse axis fin stabilizer can also reduce hydrodynamic noise compared with traditional stabilizer, contribute to the hidden of boats and ships,

Stabilizer adopts flexible material, can be according to the radian that need to change fin face and the swing speed of lift when swing; The fin axle of laterally settling is a circular d-axis parallel with stem buttock line.Fin both can have been done bionic fish tail formula and swung around axle by the stretch shape of regulation and control fin face of connecting rod, also can make change fin face curvature radius formula swings around axle, making change fin face curvature radius formula is divided into and produces lift stage and fin face recovery stage around axle swing process, in the time that fin face curvature radius is maximum, enters and produce the lift stage, fin regulates and controls fin face curvature radius by connecting rod and reduces gradually, and do around axle and swing, after the generation lift stage finishes, enter fin face and recover the stage, fin does backswing, fin regulates and controls fin face by connecting rod and further reduces radius of curvature the lift stage that produces increases radius of curvature lentamente to maximum relatively after minimum, to reduce the generation of lower scroll.Supporting construction in hydraulic actuating cylinder front end and fin face is by hinge links, and supporting construction prevents from causing fluid leakage because deformation occurs fin face in swing process.

The characteristic such as lift that this device has generation is large, resistance is little, noise is little, degradation of energy is little.

Brief description of the drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is stabilizer longitudinal sectional drawing of the present invention;

Fig. 3 is stabilizer transverse cross-sectional view of the present invention;

Fig. 4 is that connecting rod of the present invention links schematic diagram with supporting construction;

Fig. 5 is that the present invention produces lift stage schematic diagram;

Fig. 6 is that fin face of the present invention recovers stage schematic diagram;

Fig. 7 is the block scheme of control system in the present invention.

Detailed description of the invention

For example the present invention is described in more detail below in conjunction with accompanying drawing.

In conjunction with Fig. 1 to Fig. 4, flexible transverse axis fin stabilizer mainly comprises fin axle 1, is master's physical construction and the control system such as flexible fin face 2, the connecting rod 3 that hydraulic actuating cylinder forms with hard rubber, fin axle 1 is that a circular d-axis is parallel with the bow buttock line of ship, on fin axle 1, settle fin face 2, connecting rod 3 is housed on fin face 2, and the supporting construction 4 in connecting rod 3 front ends and fin face is passed through hinge links.In the time that the flexible stabilizer of hull port and starboard starts to enter mode of operation, the shape that fin stretches regulation and control fin face by connecting rod, both can do bionic fish tail formula and swing around axle, also can make and change fin face curvature radius formula around axle swing generation rolling moment.Making change fin face curvature radius formula is divided into and produces lift stage and fin face recovery stage around axle swing process.Suppose that hull astarboard direction waves, taking right side stabilizer as example: produce the lift stage as shown in Figure 5 when fin face curvature radius enters when maximum, at this moment control unit provides distortion instruction and the swing mode of flexible fin face according to the rolling status signal of boats and ships, Fu is control link under the effect of control signal, fin regulates and controls fin face curvature radius by connecting rod and reduces gradually to make fin face to present convex, and do lower pendular motion around axle, after the generation lift stage finishes, enter fin face and recover the stage as shown in Figure 6, fin does backswing, fin regulates and controls fin face by connecting rod and further reduces radius of curvature the lift stage that produces increases radius of curvature maximum lentamente relatively after minimum, in the time that the radius of curvature of fin face reaches maximum, the recovery stage has finished lift production process one time, when boats and ships are when aport direction is waved, connecting rod regulation and control fin face curvature radius reduces to make fin face to be lower convex gradually, and do upper pendular motion around axle, after the generation lift stage finishes, enter fin face and recover the stage, fin does backswing, connecting rod regulation and control fin face further reduce radius of curvature to after minimum relatively the lift stage that produces increase lentamente radius of curvature maximum, in the time that the radius of curvature of fin face reaches maximum, the fin face recovery stage finishes again to enter and produces the lift stage.Control system comprises measuring unit 5 as shown in Figure 7,

control unit

6,7, Fu 8.After comparing, the status signal of the fin stabilizer 9 that the rolling motion status signal of boats and ships obtains through control unit 6 and measuring unit 5 passes to control unit 7, control unit 7 calculates the deformation degree of fin face 2 and the swing mode of fin face 2 according to the control law of having set, and this control signal is passed to Fu 8, making servomotor drive the flexible regulation and control fin of connecting rod 3 face 2 on fin face 2 to make bionic fish tail formula swings or makes around axle and change fin face curvature radius formula and swing and produce rolling moment around axle, the rolling characteristic of antagonism ship, thereby reduce the coupling of propulsion system and stabilizer, can improve the road-holding property of boats and ships.

Claims

1. a flexible transverse axis fin stabilizer, comprise fin axle, be arranged on the fin face on fin axle, it is characterized in that: described fin face is flexible fin face, in fin face, be furnished with two supporting constructions, parallel being installed on ship of bow buttock line of fin axle and ship, also comprises two hydraulic actuating cylinders by controller control, the cylinder bar of two hydraulic actuating cylinders is hinged with two supporting constructions respectively, and the cylinder of two hydraulic actuating cylinders is aboard ship hinged.