JPH07172385A - Ship and waterborne structure - Google Patents

Abstract

PURPOSE:To improve a fluctuation relieving effect by coupling a hull and relatively movable floats through a buffering device and constructing the buffering device of both or one of a spring and a damping device. CONSTITUTION:Horizontally extending arms 14 and 16 and arms 20 and 22 are oscilatorily coupled to the front side and the rear side of the bottom of a hull 10 by means of pins 12 and 18. Longitudinally long floats 24 and 26 are mounted on the tip sides of the arms 14 and 20 and 16 and 22. A buffering device 28 is located between the hull 10 and the arms 14, 16, 20, and 22. The buffering device 28 consists of a spring 30 and a damper 32. The damper 32 constituted similarly to a shock absorber for a vehicle is employed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ship and a floating structure on a water surface, and particularly to a technique for improving the sway of them.

[0002]

2. Description of the Related Art As a conventional device for reducing shaking, such as pitching and rolling of a hull, a device for moving a liquid or the like inside the hull, a device for using stabilizing wings operating in water, etc. There is. For example, in the method of moving the liquid in the hull, the liquid is moved from the part of the hull that is going to sink into the part that is going to be lifted. That is, when the bow side (or the right side of the bow) is shaken so as to sink, the liquid is moved to the stern side (or the left side of the bow) to reduce the sinking of the bow (or the right side of the bow). Reduce the lifting of (or left side).

[0003]

However, in the case of moving the liquid in the hull as described above, it is a device for actively dealing with the shaking of the hull, and a device for forcibly moving the liquid. Is required, the device becomes very large, and it takes a certain amount of time to move the liquid, so that it is possible to deal with only a relatively large shaking. It should be noted that in the case where the stabilizer blades are provided in the water, resistance to shaking is only increased, and shaking can be reduced to some extent, but a sufficient shaking reducing effect cannot be obtained. . The present invention aims to solve such problems.

[0004]

The present invention solves the above problems by connecting a float to a hull via a shock absorber. That is, the ship according to the present invention has a hull,
It has a float that is relatively movable relative to this, and a shock absorber that connects the hull and the float. The shock absorber
For example, it is composed of a spring and / or a damping device. The hull may be levitated above the water surface or may be supported above the water surface. The cushioning effect can be further improved by connecting the pair of floats to each other by a rod-shaped or plate-shaped member having the hull as a fulcrum. Further, the floating structure above the watercraft other than the ship can have basically the same configuration as above. The float may be provided with some or all of the functional devices of the hull or structure.

The hull is connected to the float via a shock absorber. Therefore, when the hull is supported above the surface of the water, even if the float sways due to waves, the sway is not transmitted to the hull as it is, but is absorbed by the shock absorber, Upset is reduced. This operation is similar to the case where the vibration of the wheels is not directly transmitted to the vehicle body because the vehicle body of the automobile is supported via the suspension device. Further, even when the hull is levitating on the water surface, the relative movement between the hull and the float is appropriately suppressed by the shock absorber, so that the shaking reduction effect can be obtained.

[0006]

【Example】

(First Embodiment) FIGS. 1 and 2 show a first embodiment. Hull 1
Two horizontally extending arms 14 and 16 are swingably connected by a pin 12 to the front side of the bottom surface of 0.
Similarly, arms 20 and 22 swingable by a pin 18 are provided on the rear side of the bottom surface of the hull 10. Arm 1
A float 24 which is long in the vertical direction is attached to the tip ends of 4 and 20. On the other hand, a float 26 similar to the float 24 is attached to the tip ends of the arms 16 and 22. A shock absorber 28 is provided between the hull 10 and the arms 14, 16, 20 and 22. Shock absorber 2
8 is composed of a spring 30 and a damping device (damper) 32. The damping device 32 has a structure similar to that of a shock absorber for a vehicle, and has a function of damping the vibration by braking by moving the fluid in a state of high resistance. The floats 24 and 26 are sized to have buoyancy capable of supporting the weight of the hull 10. Further, the spring 30 is also designed to support the weight of the hull 10. Therefore, when this vessel is placed on the water surface, the hull 10 is in a water separating state in which it is located above the water surface.

Next, the operation of this embodiment will be described.
As described above, the hull 10 is supported by the floats 24 and 26 in the water separating state via the shock absorber 28 as shown in FIG. If a transverse wave acts in this state, the floats 24 and 26 will move up and down. In response to this, the arms 14 and 16 swing. However, since the spring 30 is provided between the hull 10 and the arms 14 and 16, the swing of the arms 14 and 16 is hardly transmitted to the hull 10. Further, even if the hull 10 swings, it is damped by the damping device 32. As a result, although the floats 24 and 26 move up and down by the transverse wave, the hull 1
0 means almost no rolling.

(Second Embodiment) FIG. 3 shows a second embodiment.
In the second embodiment, the number of floats, which was two in the first embodiment, is changed to four, and these floats 24a, 24b and 26 are used.
a and 26b to the arms 14, 20, 16 and 2 respectively.
It is designed to be attached to 2. In the case of the second embodiment, it is possible to obtain the shaking reduction effect for vertical shaking in addition to horizontal shaking.

In the connection structure of the hull 10 and the float 24, the float 24 is supported by a movable arm 14 as shown in FIG. 4, and is fixed between the fixed arm 15 and the float 24 fixed to the hull 10. Spring 30 and damping device 3
Two may be arranged.

Further, as shown in FIG. 5, the float 24a
It is also possible to provide the engine 90, the auxiliary machine 92 and the propulsion device 94 of the engine 90. Further, as shown in FIG. 6, a rudder 96 and a fuel tank 98 may be provided on the float 24a or the like. By arranging the functional device on the float side in this way, the habitability and safety on the hull 10 side can be further improved.

(Third Embodiment) FIG. 7 shows a third embodiment.
The third embodiment is the arm 1 of the first or second embodiment.
4 and the arm 16, and the arm 20 and the arm 22 are connected by a leaf spring 42 via a fulcrum 40 at the bottom of the hull 10. By doing so, rolling can be further improved. The leaf spring 42 may be rod-shaped.

(Fourth Embodiment) FIGS. 8 and 9 show a fourth embodiment. In the fourth embodiment, the hull 10 is brought into the water-immersed state, and the float 24 is arranged beside it. The float 24 is swingably supported by the hull 10 by a movable arm 50, and a spring 30 and a damping device 32 are arranged between the arm 50 and a fixed arm 52 fixed to the hull 10. Even in the case where the hull 10 is in the water-immersed state as described above, the shock absorber 28 constituted by the spring 30 and the damping device 32 provides a force that resists the rolling of the hull 10. Rolling of the hull 10 is reduced.

(Fifth Embodiment) FIGS. 10 and 11 show a fifth embodiment. In the fifth embodiment, in addition to the fourth embodiment, a float 26 and a shock absorber 28 are provided on the bow side of the hull 10. In the case of this embodiment, it is possible to obtain the effect of reducing vertical vibration in addition to horizontal vibration.

(Sixth Embodiment) FIG. 12 shows a sixth embodiment. The sixth embodiment is an application of the present invention to a floating structure. That is, the floats 64 connected by the arms 62 are provided on both sides of the floating structure 60,
The shock absorber 28 including the spring 30 and the damping device 32 is provided between the arm 62 and the structure 60, and the floats 64 on both sides are connected to each other, and the leaf spring 68 having the fulcrum 66 on the structure 60 is provided.
Are linked by. Also in this embodiment, similar to the case of a ship, it is possible to obtain the effect of reducing shaking.

[0015]

As described above, according to the present invention, since the float is connected to the hull or the floating structure on the water via the shock absorber, the shaking of the hull or the floating structure is greatly reduced. can do.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a plan view of the second embodiment.

FIG. 4 is a diagram showing another configuration of the float connecting portion.

FIG. 5 is a diagram showing an example in which an engine and the like are provided on a float.

FIG. 6 is a diagram showing an example in which a fuel tank and the like are provided in the float.

FIG. 7 is a front view showing a third embodiment.

FIG. 8 is a plan view of the fourth embodiment.

9 is a front view of FIG. 8. FIG.

FIG. 10 is a plan view of the fifth embodiment.

11 is a side view of FIG.

FIG. 12 is a diagram showing a sixth embodiment.

[Explanation of symbols]

 10 Hull 14,16,20,22 Arm 24,26 Float 28 Shock Absorber 30 Spring 32 Damper 90 Engine 92 Auxiliary Machine 94 Propulsor 96 Rudder 98 Fuel Tank

Claims (7)

[Claims] 1. A ship having a hull, one or a plurality of floats movable relative to the hull, and a shock absorber for connecting the hull and the float. 2. The marine vessel according to claim 1, wherein the shock absorber is composed of both and / or one of a spring and a damping device. 3. The hull is levitated above the water surface.
Or the ship according to 2. 4. The ship according to claim 1, wherein the hull is supported above the water surface. 5. The ship according to claim 1, wherein the at least one pair of floats are connected to each other by a rod-shaped or plate-shaped member having a hull as a fulcrum. 6. A structure and a movable unit 1 relative to the structure.
A floating structure above water, which comprises one or more floats and a shock absorber for connecting the structure and the float. 7. The ship or floating structure according to claim 1, wherein a part or all of the functional devices of the hull or structure are provided on the float.