JP4721549B2 - Hull structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hull structure in which different materials are combined.
[0002]
[Prior art]
Conventionally, the hull has a hull outer plate having a substantially arc-shaped cross section that forms the hull bottom portion and the hull side portion of the hull, and a hull bottom auxiliary frame, a hull side auxiliary rib, a stiffener (stiffener) provided on the hull outer plate, Or aggregates, such as a beam provided in the deck part of a ship body, consist of the same material. For example, in the case of a wooden ship, the hull skin and the aggregate are made of wood, and in the FRP ship, the hull skin and the aggregate are made of fiber reinforced plastic (FRP).
[0003]
[Problems to be solved by the invention]
By the way, in the case of increasing the size of such a hull, in the FRP ship, the hull outer plate and the aggregate are each constructed by a molding die, and therefore a large aggregate molding die corresponding to the large hull outer plate is also required. Therefore, there is a problem that the cost is increased, and also in the wooden ship, a large amount of high-cost wood having sufficient strength for the aggregate is required, and thus the cost is increased. Furthermore, in a wooden ship, there is a problem that the work of attaching the aggregate to the hull outer plate is not easy.
[0004]
Therefore, the present invention has been made to solve these problems, and by using a metal that is strong and easy to process as an aggregate material, the manufacturing cost is reduced when the hull is enlarged. The object is to provide a hull structure that can be suppressed.
[0005]
[Means for Solving the Problems]
In order to solve the above problem, the hull structure according to claim 1 is a hull structure comprising an aggregate made of metal and a hull outer plate made of fiber reinforced plastic or wood, and the aggregate and the hull. Between the outer plates, fiber reinforced plastic is used as a material, and supporting aggregates that support the aggregates are interposed. The aggregates, the supporting aggregates, the supporting aggregates, and the hull outer plates are joined by laminated members made of fiber reinforced plastics, respectively. It is a thing.
[0006]
According to the above SL hull structure, and aggregate to the metal as material, a hull structure consisting of hull for the fiber-reinforced plastic or wood and materials, the aggregate and the outer hull plates, the fiber-reinforced plastic material In the conventional hull , the supporting aggregate that supports the aggregate is interposed, and the aggregate, the supporting aggregate, the supporting aggregate, and the hull outer plate are joined by laminated members made of fiber reinforced plastic, respectively. Unlike FRP ships or wooden ships, where the outer plate and the aggregate are made of the same material, when the hull is enlarged, sufficient strength is provided for the large aggregate mold or aggregate for the large hull outer plate. Therefore, the manufacturing cost can be reduced.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The hull in the hull structure of the present invention includes a ship bottom rib, a ship side rib, a stiffener (reinforcing material) made of metal on the hull outer plate forming the hull bottom and the hull side of the hull made of fiber reinforced plastic or wood. ) And other aggregates joined with fiber-reinforced plastic.
[0008]
It will be described below with reference to the hull structure of the embodiment of the present invention in FIGS.
[0009]
As shown in FIGS. 1 and 2, the hull in this hull structure is formed on both sides of a vertical aggregate 14 made of metal that is processed according to the shape of the hull skin 1 made of fiber reinforced plastic, for example. A plurality of horizontal aggregates 15 processed according to the shape of the hull outer plate 1 using metal as a material in a direction perpendicular to the vertical aggregates 14 are welded along the vertical aggregates 14 at a predetermined interval. The vertical aggregate 14 and the horizontal aggregate 15 are joined to the hull outer plate 1 by a laminated member 4 made of fiber reinforced plastic.
[0010]
The laminated member 4 is formed by laminating a plurality of fiber sheets (fiber sheet layers) made of glass fibers, carbon fibers, etc. on a resin sheet (resin layer) made of synthetic resin or the like with an adhesive. Hereinafter, it is referred to as a laminated sheet.
[0011]
This hull structure includes a hull outer plate 1 and a metal aggregate 10 and an aggregate 11 , and a fiber-reinforced plastic support aggregate 12 and a support aggregate that support the metal aggregate 10 (11). 13 , the aggregate 10 (11) and the support aggregate 12 (13), and the support aggregate 12 (13) and the hull outer plate 1 are joined by the laminated sheet 4, respectively, to form a composite longitudinal aggregate 14 and composite transverse aggregate 15.
[0012]
In other words, this hull structure is composed of a composite longitudinal aggregate 14 and a composite transverse aggregate 15 provided on the hull outer plate 1 having an H-shaped (or I-shaped) cross section, that is, at both ends of the web portion 10A (11A). An aggregate 10 (11) having flat flange portions 10Ba (11Ba) and 10Bb (11Bb) parallel to each other, and the same shape as the aggregate 10 (11), and the cross section is H-shaped (or I-shaped) That is, a composite aggregate composed of a support aggregate 12 (13) having flat plate flange portions 12Ba (13Ba) and 12Bb (13Bb) parallel to each other at both ends of the web portion 12A (13A) is employed. .
[0013]
When the composite aggregate is manufactured and joined to the hull outer plate 1, the flange portions 10Ba (11Ba) and 12Ba (13Ba) at one end of the aggregate 10 (11) and the support aggregate 12 (13) are connected to each other. Are bonded to each other with an adhesive to form a composite aggregate. Then, the joint portion 16 (17) of the composite aggregate is covered with the laminated sheet 4 from both sides, and the aggregate 10 (11) and the support aggregate 12 (13) are firmly joined, and then the composite aggregate is configured. The flange 12Bb (13Bb) at the other end of the supporting aggregate 12 (13) facing the lower hull outer plate 1 is bonded to the flange 12Bb (13Bb) at the other end and the hull outer plate 1. The composite aggregate is firmly attached to the hull outer plate 1 by covering with a laminated sheet 4 from the center of the support aggregate 12 (13) to the flange 12Bb (13Bb) at the other end. Join.
[0014]
As the fiber reinforced plastic, glass fiber reinforced plastic, carbon fiber reinforced plastic or the like is used and has properties such as high elastic modulus, high strength, and high vibration damping ability.
[0015]
As described above, the composite aggregate having the function as the aggregate of the hull is manufactured on the H-shaped aggregate 10 (11) made of metal according to the shape of the aggregate 10 (11). Since the H-shaped support aggregate 12 (13) is joined to form a double aggregate, it has a function as an aggregate having a higher strength. Unlike FRP ships, where the plates and aggregates are made of the same material fiber reinforced plastic, when the hull is enlarged, it does not require a mold for large aggregates corresponding to the large hull skin, so it can be manufactured. Cost can be reduced.
[0016]
Moreover, since the joint portion between the composite aggregate and the hull outer plate 1 is a joint between materials having the same rigidity (fiber reinforced plastics), the same displacement amount with respect to an external force, and therefore, a metal is used as a material. since the characteristic difference of the material of the aggregate and hull are absorbed by the fiber-reinforced plastic that forms the supporting aggregate to, minimizing the peeling action between the two users (composite aggregate and hull plates) Can do.
[0017]
When manufacturing the hull in the above-described hull structure, the aggregate 10 (11) and the supporting aggregate 12 (13) constituting the composite aggregate are respectively performed in parallel in the optimum steps (downward work can be performed). Further, a process of manufacturing the aggregate 10 (11) and the support aggregate 12 (13) and a construction process for connecting the aggregate 10 (11) and the support aggregate 12 (13) are wrapped. Therefore, the manufacturing period can be shortened.
[0018]
Incidentally, in the above you facilities is, H-shaped aggregate 10 (11) and between the hull 1, the bone material 10 (11) H-shaped support aggregate 12 which supports the (13 ) And the flanges 10Ba (11Ba) and 12Ba (13Ba) at one end of the aggregate 10 (11) and the support aggregate 12 (13) are bonded to each other with an adhesive to form a composite aggregate 3, as shown in FIG. 3, a T-shape supporting the T-shaped aggregate 18 (19) between the T-shaped metal aggregate 18 (19) and the hull outer plate 1. The web-shaped portions 18A (19A) and 20A of the T-shaped aggregate 18 (19) and the T-shaped support aggregate 20 (21) are interposed with the support aggregate 20 (21) made of fiber reinforced plastic. (21A) Composite aggregate joined together, that is, composite longitudinal aggregate 22 and composite transverse aggregate 23 It may be. In this case, the web portion 20A (21A) of the support aggregate 20 (21) has a substantially concave embedding portion 20Aa for embedding the web portion 18A (19A) of the T-shaped aggregate 18 (19) at the top. (21Aa) is formed, and the embedded portion 20Aa (21Aa) of the supporting aggregate 20 (21) is applied with an adhesive, and the web portion 18A (19A) of the T-shaped aggregate 18 (19) is applied. It is embedded and the web portion 20A (21A) of the supporting aggregate 20 (21) is joined to form a composite aggregate. Then, the joint 24 (25) of the composite aggregate is covered with the laminated sheet 4 from both sides, and the aggregate 18 (19) and the support aggregate 20 (21) are firmly joined. When this composite aggregate is joined to the hull skin 1, the lower surface side of the flange portion 20 </ b> B (21 </ b> B) of the support aggregate 20 (21) constituting the composite aggregate is made to face the lower hull skin 1. Then, the flange portion and the 20B (21B) hull outer plate 1 are bonded with an adhesive, and the laminated sheet 4 covers the flange portion 20B (21B) from the center portion of the supporting aggregate 20 (21). Thus, the composite aggregate is firmly joined to the hull outer plate 1. Therefore, since the composite aggregate is composed of double aggregates, the strength is high, and the web portion 18A (19A) of the T-shaped aggregate 18 (19) constituting the composite aggregate is the support aggregate. Since it is firmly embedded and fixed in the embedded portion 20Aa (21A) of 20 (21), the T-shaped aggregate 18 (19) and the support aggregate 20 (21) are firmly joined. The T-shaped aggregate 18 (19) and the supporting aggregate 20 (21) are easier to manufacture than the H-shaped aggregate 10 (11) and the supporting aggregate 12 (13). Shape.
[0019]
Incidentally, in the above you facilities is the cross-sectional shape over from one end to the other end has been described that use the same T-shaped aggregates, as shown in FIGS. 4 and 5, An aggregate in which a plurality of rectangular holes (light holes) 27 are formed at a predetermined interval from one end to the other end may be used for the web portion 26A of the T-shaped aggregate 26. . When the aggregate 26 is covered with the laminated sheet 4 and joined to the hull outer plate 1, the laminated sheet 4 is also provided in the hole 27 of the aggregate 26, and the laminated sheet 4 attaches the flange portion 26 </ b> B of the aggregate 26. It is completely covered in the width direction and joined to the hull skin 1. The filler 28 is filled in the gaps of the holes 27 through which the laminated sheet 4 is passed, and the outer surface of the aggregate 26 is further covered with the laminated sheet 4. Therefore, the aggregate 26 is covered with the laminated sheet 4 passed through the hole 27 of the aggregate 26 and the laminated sheet 4 covering the outer surface of the aggregate 26, that is, the double laminated sheets 4, 4. In addition, the hull skin 1 can be more strongly joined.
[0020]
In the form of the above you facilities also in each of the vertical aggregate and lateral bone material in the hull, same aggregate, i.e. a hat-like aggregate, T-shaped bone material, coated aggregate, or composite aggregate However, different aggregates may be used for the vertical and horizontal aggregates by appropriately combining these aggregates according to the hull shape and the like.
[0021]
In the form of the above you facilities is the hull of the ship have been described herein what are formed by fiber-reinforced plastic, the hull of the boat may be replaced with those formed by wood. In this case, as an aggregate of the hull, the aggregate in the form of the above you facilities, i.e. the intensity is strong and is easy to process hat-shaped aggregates which are formed by a metal, T-shaped bone material, the A covered aggregate that is easily manufactured simply by covering a fiber-reinforced plastic with a T-shaped aggregate or a composite aggregate with higher strength is adopted, so that the conventional hull skin and aggregate are made of the same material. Unlike the wooden ship formed by the above, when the hull is enlarged, high-cost timber having sufficient strength for the aggregate is not required, so that the manufacturing cost can be suppressed.
[0022]
Further, even when an existing hull made of fiber reinforced plastic or wood of the same material is used for the hull skin and the aggregate, it is effective to apply the hull structure to the hull skin of the hull.
[0023]
In the form of the above you facilities is this hull structure has been described applied to a hull of the ship, may be applied to the hull structure to the plate body, such as a deck portion of the hull, further hull The present invention may be applied to a plate part of an offshore structure other than the above.
[0024]
【The invention's effect】
According to the hull structure described in claim 1 of the present invention, the hull outer plate of the hull is formed of fiber reinforced plastic or wood, and the hull aggregate is composed of double aggregate of aggregate and support aggregate. Unlike conventional FRP ships or wooden ships, where the hull skin and aggregate are made of the same material, the large hull that corresponds to the large hull skin is used to increase the size of the hull. Since a high-cost wood having sufficient strength is not required for the aggregate forming mold or the aggregate, the manufacturing cost can be reduced.
[0025]
Moreover, in the joint part of the double aggregate used for the said hull, and a hull outer board, it is joining of the same rigidity (fiber reinforced plastics) or similar materials (fiber reinforced plastic and wood). As a result, the same displacement amount or difference in displacement amount does not occur much with respect to the external force, and further, the difference in characteristics between the metal-based aggregate and the hull outer plate material is absorbed by the fiber reinforced plastic that forms the support aggregate The Therefore, the peeling action between the two (between the double aggregate used for the hull and the hull outer plate) can be suppressed.
[Brief description of the drawings]
1 is a main part schematic perspective view of the hull structure of the embodiment of the present invention.
2 is a cross-sectional view of Rukotsu material put in the hull structure.
FIG. 3 is a sectional view of a modification of the aggregate.
FIG. 4 is a perspective view of a main part of a T-shaped aggregate in the hull structure.
FIG. 5 is a cross-sectional view of the same aggregate.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hull outer plate 4 Laminated sheet 10 Aggregate 11 Aggregate 12 Support aggregate 13 Support aggregate 14 Vertical aggregate 15 Horizontal aggregate 18 Aggregate 19 Aggregate 20 Support aggregate 21 Support aggregate

Claims (1)

A hull structure consisting of an aggregate made of metal and a hull outer plate made of fiber reinforced plastic or wood,
A fiber reinforced plastic is used as a material between the aggregate and the hull outer plate, and a supporting aggregate that supports the aggregate is interposed. The aggregate and the supporting aggregate, and the supporting aggregate and the hull outer plate are respectively fibers. A hull structure characterized by being joined by a laminated member made of reinforced plastic.

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