JPH08119190A - Floating structural body provided with moon pool of resistance reduction type - Google Patents
Floating structural body provided with moon pool of resistance reduction typeInfo
- Publication number
- JPH08119190A JPH08119190A JP6280010A JP28001094A JPH08119190A JP H08119190 A JPH08119190 A JP H08119190A JP 6280010 A JP6280010 A JP 6280010A JP 28001094 A JP28001094 A JP 28001094A JP H08119190 A JPH08119190 A JP H08119190A
- Authority
- JP
- Japan
- Prior art keywords
- opening
- lid
- moon pool
- floating
- structural body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
- B63B2003/147—Moon-pools, e.g. for offshore drilling vessels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、浮体式作業台や作業船
のごとき浮体構造物に関し、特に上甲板開口縁から底部
外板開口縁まで貫通する筒状囲壁により形成されたムー
ンプールを有する浮体構造物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating structure such as a floating workbench or a work boat, and more particularly, it has a moon pool formed by a cylindrical wall penetrating from an opening edge of an upper deck to an opening edge of a bottom outer plate. Floating structure.
【0002】[0002]
【従来の技術】従来のムーンプールをそなえた浮体構造
物としては、図7に示すようなものがあり、船体1の上
甲板開口縁1aから底部外板開口縁1bまで貫通する円
筒状の囲壁2aにより形成されたムーンプール2の内部
には、停船状態で外部の水面3と同じレベルの水面3a
が形成されるようになっている。2. Description of the Related Art As a conventional floating body structure having a moon pool, there is a floating body structure as shown in FIG. 7, which is a cylindrical enclosure wall extending from an upper deck opening edge 1a of a hull 1 to a bottom outer plate opening edge 1b. Inside the moon pool 2 formed by 2a, the water surface 3a at the same level as the outer water surface 3 in the stopped state.
Are formed.
【0003】[0003]
【発明が解決しようとする課題】ところで上述のような
従来の作業船では、曳航または自航による航行の際に、
ムーンプール2の下端の開口部2bの開口面に沿う流れ
6の一部が、開口部2bの内部に流入して渦流5を生
じ、これにより抵抗の増加を招くという不具合がある。By the way, in the conventional work boat as described above, when the ship is towed or self-propelled,
A part of the flow 6 along the opening surface of the opening 2b at the lower end of the moon pool 2 flows into the inside of the opening 2b to generate a swirl 5, which causes an increase in resistance.
【0004】そこで、航行時には開口部2bを完全に閉
塞する閉塞蓋を設けるようにしたものも開発されている
が、このような閉塞蓋で開口部2bを閉塞すると、船体
1の動揺に伴いムーンプール内の水面3aが外部の水面
3よりも上昇したり下降したりする際に、上記閉塞蓋に
大きな荷重がかかるので、同閉塞蓋を著しく頑丈に作ら
なければならず、重量の増加やコストの増大を招くこと
になる。Therefore, there is also developed a cover provided with a closing lid for completely closing the opening 2b at the time of navigation, but if the opening 2b is closed with such a closing lid, the moon will be shaken as the hull 1 sways. When the water surface 3a in the pool rises or falls below the water surface 3 outside, a large load is applied to the closing lid, so the closing lid must be made extremely robust, which increases weight and costs. Will be increased.
【0005】本発明は、上述のような問題点の解消をは
かろうとするもので、航行時にムーンプールの下端の開
口部における水の出入を許容しながら同開口部内に渦流
が発生するのを抑制できるようにした、抵抗減少型ムー
ンプール付き浮体構造物を提供することを目的とする。The present invention is intended to solve the above-mentioned problems, and prevents eddy currents from occurring in the opening of the moon pool while allowing water to flow in and out of the opening at the bottom of the moon pool during navigation. It is an object of the present invention to provide a floating body structure with a drag-reducing moonpool that can be suppressed.
【0006】[0006]
【課題を解決するための手段】前述の目的を達成するた
め、本発明の抵抗減少型ムーンプール付き浮体構造物
は、上甲板開口縁から底部外板開口縁まで貫通する筒状
囲壁により形成されたムーンプールをそなえ、同ムーン
プールの下端の開口部にヒンジを介し開閉可能に枢着さ
れた蓋状構造体と、同蓋状構造体の開閉手段とが設けら
れて、航行時における上記蓋状構造体の閉鎖状態で上記
開口部における水の出入を許容しながら同開口部内に渦
流が発生するのを防止すべく、上記蓋状構造体が上記開
口部内を仕切る多数の垂直板を組み合わせて格子状に構
成されたことを特徴としている。In order to achieve the above-mentioned object, a floating structure with a drag-reducing moonpool according to the present invention is formed by a cylindrical surrounding wall extending from an opening edge of an upper deck to an opening edge of a bottom skin. And a lid-like structure that is pivotally attached to the opening at the lower end of the moon-pool by a hinge so as to be openable and closable, and means for opening and closing the lid-like structure. In order to prevent eddy currents from occurring in the opening while allowing water to flow in and out of the opening when the structure is closed, the lid-like structure combines a number of vertical plates that partition the inside of the opening. It is characterized by being configured in a grid pattern.
【0007】また本発明の抵抗減少型ムーンプール付き
浮体構造物は、上記蓋状構造体が多数の前傾姿勢の横方
向フィンを列設されるようにして構成されたことを特徴
としている。Further, the resistance-reducing type floating structure with a moon pool according to the present invention is characterized in that the lid-shaped structure is formed by arranging a large number of lateral fins in a forward tilted posture.
【0008】さらに本発明の抵抗減少型ムーンプール付
き浮体構造物は、上記開口部が円形に形成され、上記蓋
状構造体が、上記開口部の内周面に整合するリング部材
をそなえて構成されたことを特徴としている。Further, in the floating structure with a drag pool of the present invention, the opening is formed in a circular shape, and the lid-like structure is provided with a ring member which is aligned with the inner peripheral surface of the opening. It is characterized by being done.
【0009】[0009]
【作用】上述の本発明の抵抗減少型ムーンプール付き浮
体構造物では、ムーンプールの下端の開口部に枢着され
る蓋状構造体が、上記開口部を仕切る多数の垂直板を組
み合わせて格子状に構成されることにより、航行時には
上記蓋状構造体の閉鎖状態で上記開口部における上記垂
直板の相互間に水の出入を許容しながら、同開口部内に
渦流が発生するのを上記垂直板で抑制する作用が行なわ
れる。In the floating body structure with a moon pool of the present invention described above, the lid-like structure pivotally attached to the opening at the lower end of the moon pool is formed by combining a large number of vertical plates partitioning the opening. Due to the above-mentioned structure, when navigating, water is allowed to flow in and out between the vertical plates in the opening while the lid-like structure is closed, and the vortex flow is generated in the opening. A suppressing action is performed by the plate.
【0010】また、上記蓋状構造体が多数の前傾姿勢の
フィンを列設されて構成される場合は、航行に際し上記
開口部における上記フィンの相互間に水の出入を許容し
ながら、同フィンの前傾姿勢により上記開口部内におけ
る渦流の発生を十分に防止する作用が行なわれる。Further, when the lid-like structure is constructed by arranging a large number of forwardly-inclined fins in a row, while allowing water to enter and leave between the fins in the opening during navigation, Due to the forwardly inclined posture of the fins, the action of sufficiently preventing the generation of the vortex in the opening is performed.
【0011】さらに、上記開口部が円形に形成されて、
上記蓋状構造体が上記開口部の内周面に整合するリング
部材をそなえる場合は、同リング部材に前記の垂直板ま
たはフィンを取り付けるようにして蓋状構造体を強固に
構成することができるようになる。Further, the opening is formed in a circular shape,
When the lid-shaped structure has a ring member that matches the inner peripheral surface of the opening, the lid-shaped structure can be firmly configured by attaching the vertical plate or the fin to the ring member. Like
【0012】[0012]
【実施例】以下、図面により本発明の実施例について説
明すると、図1〜3は本発明の第1実施例としての抵抗
減少型ムーンプール付き浮体構造物を示すもので、図1
はその縦断面図、図2はその蓋状構造体の下面図、図3
はその航行時の作用状態を示す要部縦断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a floating structure with a moon pool as a first embodiment of the present invention.
Is a longitudinal sectional view thereof, FIG. 2 is a bottom view of the lid-like structure, and FIG.
FIG. 4 is a longitudinal sectional view of an essential part showing an operating state at the time of navigation.
【0013】図1に示すように、本実施例の場合も、浮
体構造物としての船体1の上甲板開口縁1aから底部外
板開口縁1bまで貫通する円筒状の囲壁2aによりムー
ンプール2が形成されており、同ムーンプール2の内部
には停船状態で外部の水面3と同じレベルの水面3aが
形成されている。As shown in FIG. 1, also in the case of the present embodiment, the moon pool 2 is formed by the cylindrical surrounding wall 2a penetrating from the upper deck opening edge 1a of the hull 1 as a floating structure to the bottom outer plate opening edge 1b. The water surface 3a is formed inside the moon pool 2 at the same level as the outer water surface 3 in the stopped state.
【0014】また、図1,2に示すように、ムーンプー
ル2の下端の円形開口部2bにヒンジ10を介し開閉可能
に枢着された蓋状構造体4が設けられており、同蓋状構
造体の開閉手段として、本実施例ではヒンジ10がトルク
ヒンジとして構成されている。なお、この開閉手段とし
ては、ウインチや牽引索を組み合わせた他の手段を用い
てもよい。Further, as shown in FIGS. 1 and 2, a lid-like structure 4 pivotally attached to a circular opening 2b at the lower end of the moon pool 2 via a hinge 10 so as to be openable and closable is provided. As the opening / closing means for the structure, the hinge 10 is configured as a torque hinge in this embodiment. As this opening / closing means, other means combining a winch or a tow line may be used.
【0015】蓋状構造体4は、その閉鎖状態で開口部2
bにおける水の出入を許容しながら同開口部2b内に渦
流が発生するのを抑制できるように、開口部2bの内部
を仕切る多数の垂直板4aを相互に直交するように組み
合わせて格子状に構成される。そして、各垂直板4aは
円形の開口部2bの内周面に整合するリング部材4bに
結合されており、このようにして蓋状構造体4は強固に
構成されている。The lid-shaped structure 4 has the opening 2 in its closed state.
In order to allow generation of eddy currents in the opening 2b while allowing water to flow in and out of b, a large number of vertical plates 4a partitioning the inside of the opening 2b are combined so as to be orthogonal to each other in a lattice shape. Composed. Then, each vertical plate 4a is joined to a ring member 4b aligned with the inner peripheral surface of the circular opening 2b, and thus the lid-shaped structure 4 is firmly constructed.
【0016】第1実施例としての抵抗減少型ムーンプー
ル付き浮体構造物は上述のように構成されているので、
曳航または自航による航行に際して、図3に示すよう
に、ムーンプール2の下端の開口部2bを蓋状構造体4
が閉鎖すると、同蓋状構造体4が開口部2bにおける垂
直板4aの相互間に水の出入を許容しながら、開口部2
bの開口面に沿う流れ6が同開口部2b内に流入して渦
流5が発生するのを垂直板4aで抑制する作用が行なわ
れ、これにより航行時における抵抗の増加を小幅にとど
める効果が得られる。Since the floating body structure with a reduced resistance moonpool as the first embodiment is constructed as described above,
At the time of towing or self-propelled navigation, as shown in FIG.
When the lid 2 is closed, the lid-like structure 4 allows water to flow in and out between the vertical plates 4a in the opening 2b, and the opening 2
The vertical plate 4a suppresses the flow 6 along the opening surface of b from flowing into the opening 2b and the generation of the vortex 5, which has the effect of limiting the increase in resistance during navigation to a small extent. can get.
【0017】また、航行時に船体1が動揺しても、格子
状の蓋状構造体4を水が自由に通過できるため、同蓋状
構造体4にかかる荷重が大幅に軽減されるようになり、
これにより蓋状構造体4を軽構造にしてその重量を十分
に軽減し、コストの低減もはかれるようになる。さら
に、リング部材4bにより蓋状構造体4が強固に構成さ
れるほか、同リング部材4bを中空にして浮力を持たせ
ることにより、蓋状構造体4の比重を海水と同程度にす
れば、その開閉が容易になる利点も得られる。Further, even if the hull 1 sways during navigation, water can freely pass through the lattice-shaped lid-shaped structure 4, so that the load applied to the lid-shaped structure 4 is significantly reduced. ,
As a result, the lid-shaped structure 4 has a light structure, the weight thereof is sufficiently reduced, and the cost can be reduced. Furthermore, if the lid-shaped structure 4 is strongly constituted by the ring member 4b and the ring-shaped member 4b is made hollow so as to have buoyancy, the specific gravity of the lid-shaped structure 4 can be made approximately equal to that of seawater. There is also an advantage that it can be easily opened and closed.
【0018】図4は上述の第1実施例の変形例を示して
おり、ムーンプール2の囲壁2aがその下端部でラッパ
状に拡径されていて、船上の作業設備7からムーンプー
ル2内に延在するホースガイドパイプ8を通じ作業用ホ
ース9が垂下されるようになっているが、蓋状構造体4
については前述の第1実施例と同様に多数の垂直板4a
を組み合わせるようにして格子状に構成され、各垂直板
4aはリング部材4bに支持されている。FIG. 4 shows a modified example of the above-mentioned first embodiment, in which the surrounding wall 2a of the moon pool 2 is expanded in a trumpet shape at the lower end portion thereof, and the inside of the moon pool 2 from the work equipment 7 on board. The work hose 9 is hung down through the hose guide pipe 8 extending to the lid-shaped structure 4
As for the first embodiment, a number of vertical plates 4a are provided as in the first embodiment.
The vertical plates 4a are supported by the ring member 4b.
【0019】次に本発明の第2実施例としての抵抗減少
型ムーンプール付き浮体構造物について説明すると、図
5はその要部を示す縦断面図、図6はその蓋状構造体の
下面図である。この第2実施例の場合も、浮体構造物と
しての船体1の上甲板開口縁1aから底部外板開口縁1
bまで貫通する円筒状の囲壁2aによりムーンプール2
が形成されており、同ムーンプール2の内部には停船状
態で外部の水面3と同じレベルの水面3aが形成されて
いる。Next, a floating structure with a resistance-reducing moonpool as a second embodiment of the present invention will be described. FIG. 5 is a longitudinal sectional view showing the main part thereof, and FIG. 6 is a bottom view of the lid-like structure. Is. In the case of the second embodiment as well, from the upper deck opening edge 1a of the hull 1 as a floating structure to the bottom outer plate opening edge 1
Moon pool 2 with a cylindrical wall 2a that penetrates up to b
The water surface 3a is formed inside the moon pool 2 at the same level as the outer water surface 3 in a stopped state.
【0020】また図5,6に示すように、ムーンプール
2の下端の円形開口部2bにヒンジ10を介し開閉可能に
枢着された蓋状構造体4が設けられており、同蓋状構造
体の開閉手段として、本実施例ではヒンジ10がトルクヒ
ンジとして構成されている。蓋状構造体4は、その閉鎖
状態で開口部2bにおける水の出入を許容しながら同開
口部2b内に渦流が発生するのを抑制できるように、多
数の前傾姿勢の横方向フィン4cを列設されるようにし
て構成されており、これらのフィン4cは前後方向の連
結垂直板4dに連結されるほか、円形の開口部2bの内
周面に整合するリング部材4bに結合されている。Further, as shown in FIGS. 5 and 6, a lid-shaped structure 4 pivotally attached to the circular opening 2b at the lower end of the moon pool 2 via a hinge 10 so as to be openable and closable is provided. As the body opening / closing means, the hinge 10 is configured as a torque hinge in this embodiment. The lid-shaped structure 4 is provided with a large number of forward fins 4c in the lateral direction so that swirl flow can be suppressed in the opening 2b while allowing water to flow in and out of the opening 2b in the closed state. The fins 4c are arranged in a row, and these fins 4c are connected to a connecting vertical plate 4d in the front-rear direction and also to a ring member 4b aligned with the inner peripheral surface of the circular opening 2b. .
【0021】上述のように蓋状構造体4が多数の前傾姿
勢のフィン4cを列設されていると、航行に際し、蓋状
構造体4の閉鎖状態で開口部2bにおけるフィン4cの
相互間に水の出入を許容しながら、同フィン4cの前傾
姿勢により開口部2bの開口面に沿う流れ6が同開口部
2b内に流入するのを抑制して、同開口部2b内に渦流
5が発生するのを十分に防止することができる。したが
って本実施例の場合も、前述の第1実施例の場合と同様
の効果が得られるようになる。As described above, when the lid-like structure 4 is provided with a large number of forwardly-inclined fins 4c, the fins 4c in the opening 2b are spaced from each other in the closed state of the lid-like structure 4 during navigation. While allowing water to flow in and out, the flow 6 along the opening surface of the opening 2b is suppressed from flowing into the opening 2b by the forwardly tilted posture of the fin 4c, and the vortex flow 5 is generated in the opening 2b. Can be sufficiently prevented. Therefore, also in the case of this embodiment, the same effect as in the case of the above-mentioned first embodiment can be obtained.
【0022】[0022]
【発明の効果】以上詳述したように、本発明の抵抗減少
型ムーンプール付き浮体構造物によれば次のような効果
が得られる。 (1) ムーンプールの下端の開口部に枢着される蓋状構造
体が、上記開口部を仕切る多数の垂直板を組み合わせて
格子状に構成されることにより、航行時には上記蓋状構
造体の閉鎖状態で上記開口部における上記垂直板の相互
間に水の出入を許容しながら、同開口部内に渦流が発生
するのを抑制する作用が行なわれる。これにより、蓋状
構造体を軽構造として製作の簡易化およびコストダウン
をはかりながら、抵抗の増加を抑制することができる。 (2) 上記蓋状構造体が多数の前傾姿勢のフィンを列設さ
れて構成される場合は、航行に際し上記開口部における
上記フィンの相互間に水の出入を許容しながら、同フィ
ンの前傾姿勢により上記開口部内における渦流の発生を
十分に防止する作用が行なわれる。これにより、上記
(1)項の場合と比べてややコストアップを招くものの、
抵抗の増加は大幅に抑制することができる。 (3) 上記開口部が円形に形成されて、上記蓋状構造体が
上記開口部の内周面に整合するリング部材をそなえる場
合は、同リング部材に前記の垂直板またはフィンを取り
付けるようにして蓋状構造体を強固に構成することがで
きるようになる。As described in detail above, according to the floating structure with a moon pool having a reduced resistance of the present invention, the following effects can be obtained. (1) The lid-like structure pivotally attached to the opening at the lower end of the moon pool is constructed in a grid pattern by combining a number of vertical plates that partition the opening so that the lid-like structure can be In the closed state, water is allowed to flow in and out between the vertical plates in the opening, while suppressing the generation of a vortex in the opening. As a result, it is possible to suppress the increase in resistance while making the lid-shaped structure a light structure to simplify the manufacturing and reduce the cost. (2) When the lid-shaped structure is configured by arranging a large number of forwardly-inclined fins, while allowing water to enter and leave between the fins in the opening during navigation, The forward tilted posture has the effect of sufficiently preventing the generation of a vortex in the opening. This allows the above
Although it causes a slight cost increase compared to the case of (1),
The increase in resistance can be significantly suppressed. (3) When the opening is formed in a circular shape and the lid-shaped structure has a ring member aligned with the inner peripheral surface of the opening, the vertical plate or fin is attached to the ring member. The lid-like structure can be firmly constructed.
【図1】本発明の第1実施例としての抵抗減少型ムーン
プール付き浮体構造物を示す縦断面図である。FIG. 1 is a vertical cross-sectional view showing a floating body structure with a resistance-reducing moonpool as a first embodiment of the present invention.
【図2】図1の浮体構造物のムーンプールにおける蓋状
構造体の下面図である。FIG. 2 is a bottom view of a lid-shaped structure in the moon pool of the floating structure of FIG.
【図3】図1の浮体構造物の航行時における作用状態を
示す要部縦断面図である。FIG. 3 is a longitudinal sectional view of an essential part showing a working state of the floating structure of FIG. 1 during navigation.
【図4】図1の抵抗減少型ムーンプール付き浮体構造物
の変形例を示す要部縦断面図である。FIG. 4 is a longitudinal cross-sectional view of essential parts showing a modified example of the floating body structure with a moon pool of FIG.
【図5】本発明の第2実施例としての抵抗減少型ムーン
プール付き浮体構造物を示す要部縦断面図である。FIG. 5 is a longitudinal sectional view of an essential part showing a floating body structure with a resistance decreasing type moon pool as a second embodiment of the present invention.
【図6】図5の浮体構造物のムーンプールにおける蓋状
構造体の下面図である。6 is a bottom view of a lid-like structure in the moon pool of the floating structure of FIG.
【図7】従来のムーンプール付き浮体構造物の航行時に
おける作用状態を示す要部従断面図である。FIG. 7 is a main part sub-sectional view showing an operating state of a conventional floating structure with a moon pool during navigation.
【符号の説明】 1 浮体構造物としての船体 1a 上甲板開口縁 1b 底部外板開口縁 2 ムーンプール 2a 囲壁 2b 開口部 3 水面 3a ムーンプール内の水面 4 蓋状構造体 4a 垂直板 4b リング部材 4c フィン 4d 連結垂直板 5 渦流 6 流れ 7 作業設備 8 ホースガイドパイプ 9 作業用ホース 10 トルクヒンジ[Explanation of symbols] 1 Hull as a floating structure 1a Upper deck opening edge 1b Bottom outer plate opening edge 2 Moonpool 2a Enclosure 2b Opening 3 Water surface 3a Moonpool water surface 4 Lid-like structure 4a Vertical plate 4b Ring member 4c fins 4d connection vertical plate 5 vortex flow 6 flow 7 working equipment 8 hose guide pipe 9 working hose 10 torque hinge
Claims (3)
通する筒状囲壁により形成されたムーンプールをそな
え、同ムーンプールの下端の開口部にヒンジを介し開閉
可能に枢着された蓋状構造体と、同蓋状構造体の開閉手
段とが設けられて、航行時における上記蓋状構造体の閉
鎖状態で上記開口部における水の出入を許容しながら同
開口部内に渦流が発生するのを防止すべく、上記蓋状構
造体が上記開口部内を仕切る多数の垂直板を組み合わせ
て格子状に構成されたことを特徴とする、抵抗減少型ム
ーンプール付き浮体構造物。1. A lid provided with a moon pool formed by a cylindrical wall penetrating from an opening edge of an upper deck to an opening edge of a bottom outer plate, and a lid pivotably attached to an opening at a lower end of the moon pool via a hinge. -Like structure and opening / closing means for the lid-like structure are provided, and a vortex is generated in the opening while allowing the water to flow in and out of the opening when the lid-like structure is closed during navigation. In order to prevent the above, the lid-like structure is configured in a lattice shape by combining a number of vertical plates that partition the inside of the opening, and a floating structure with a moon pool having a reduced resistance is characterized.
通する筒状囲壁により形成されたムーンプールをそな
え、同ムーンプールの下端の開口部にヒンジを介し開閉
可能に枢着された蓋状構造体と、同蓋状構造体の開閉手
段とが設けられて、航行時における上記蓋状構造体の閉
鎖状態で上記開口部における水の出入を許容しながら同
開口部内に渦流が発生するのを防止すべく、上記蓋状構
造体が多数の前傾姿勢の横方向フィンを列設されるよう
にして構成されたことを特徴とする、抵抗減少型ムーン
プール付き浮体構造物。2. A lid provided with a moon pool formed by a tubular surrounding wall penetrating from an opening edge of an upper deck to an opening edge of a bottom outer plate, and a lid pivotably attached to an opening at a lower end of the moon pool via a hinge. -Like structure and opening / closing means for the lid-like structure are provided, and a vortex is generated in the opening while allowing the water to flow in and out of the opening when the lid-like structure is closed during navigation. In order to prevent the above, the lid-shaped structure is configured by arranging a large number of lateral fins in a forward tilted posture in an array, and a resistance-reducing floating structure with a moon pool.
ーンプール付き浮体構造物において、上記開口部が円形
に形成され、上記蓋状構造体が、上記開口部の内周面に
整合するリング部材をそなえて構成されたことを特徴と
する、抵抗減少型ムーンプール付き浮体構造物。3. The floating body structure with a reduced moonpool according to claim 1, wherein the opening is formed in a circular shape, and the lid-like structure is aligned with an inner peripheral surface of the opening. A floating body structure with a moon pool having a reduced resistance, characterized by being configured with a ring member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6280010A JPH08119190A (en) | 1994-10-19 | 1994-10-19 | Floating structural body provided with moon pool of resistance reduction type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6280010A JPH08119190A (en) | 1994-10-19 | 1994-10-19 | Floating structural body provided with moon pool of resistance reduction type |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08119190A true JPH08119190A (en) | 1996-05-14 |
Family
ID=17619050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6280010A Withdrawn JPH08119190A (en) | 1994-10-19 | 1994-10-19 | Floating structural body provided with moon pool of resistance reduction type |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08119190A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6503022B1 (en) * | 2000-08-16 | 2003-01-07 | Halter Marine, Inc. | Bouyant moon pool plug |
KR100498269B1 (en) * | 2002-11-23 | 2005-06-29 | 대우조선해양 주식회사 | A method to close large opening located in the bottom of a tanker like marine vessel |
US7918174B2 (en) * | 2006-05-11 | 2011-04-05 | Samsung Heavy Ind. Co., Ltd. | Anti-sloshing device in moon-pool |
WO2011099682A1 (en) * | 2010-02-12 | 2011-08-18 | 대우조선해양 주식회사 | Resistance-reducing device for a moon pool |
KR101523724B1 (en) * | 2013-01-11 | 2015-05-28 | 삼성중공업 주식회사 | Turret constructing method |
WO2016085353A1 (en) | 2014-11-28 | 2016-06-02 | Seastate 7 As | A moon pool control device for a marine vessel |
KR20170079964A (en) * | 2015-12-31 | 2017-07-10 | 대우조선해양 주식회사 | Install structure of fluid transfer line and install method for spread mooring marine plant |
US20180162490A1 (en) * | 2015-05-04 | 2018-06-14 | Gustomsc Resources B.V. | A vessel, especially a drillship, provided with a moon pool |
CN113335468A (en) * | 2021-06-01 | 2021-09-03 | 中国长江三峡集团有限公司 | Offshore wind power and hydrogen production floating foundation structure and balancing method |
-
1994
- 1994-10-19 JP JP6280010A patent/JPH08119190A/en not_active Withdrawn
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6503022B1 (en) * | 2000-08-16 | 2003-01-07 | Halter Marine, Inc. | Bouyant moon pool plug |
KR100498269B1 (en) * | 2002-11-23 | 2005-06-29 | 대우조선해양 주식회사 | A method to close large opening located in the bottom of a tanker like marine vessel |
US7918174B2 (en) * | 2006-05-11 | 2011-04-05 | Samsung Heavy Ind. Co., Ltd. | Anti-sloshing device in moon-pool |
JP2013519568A (en) * | 2010-02-12 | 2013-05-30 | デウ シップビルディング アンド マリーン エンジニアリング カンパニー リミテッド | Device for reducing flow resistance in moon pools |
EP2374708A1 (en) * | 2010-02-12 | 2011-10-12 | Daewoo Shipbuilding&Marine Engineering Co., Ltd. | Resistance-reducing device for a moon pool |
CN102438885A (en) * | 2010-02-12 | 2012-05-02 | 大宇造船海洋株式会社 | Resistance-reducing device for a moon pool |
WO2011099682A1 (en) * | 2010-02-12 | 2011-08-18 | 대우조선해양 주식회사 | Resistance-reducing device for a moon pool |
EP2374708A4 (en) * | 2010-02-12 | 2014-07-16 | Daewoo Shipbuilding & Marine | Resistance-reducing device for a moon pool |
CN102438885B (en) * | 2010-02-12 | 2015-07-29 | 大宇造船海洋株式会社 | The reduction impedance means of moon pool |
KR101523724B1 (en) * | 2013-01-11 | 2015-05-28 | 삼성중공업 주식회사 | Turret constructing method |
WO2016085353A1 (en) | 2014-11-28 | 2016-06-02 | Seastate 7 As | A moon pool control device for a marine vessel |
US20180162490A1 (en) * | 2015-05-04 | 2018-06-14 | Gustomsc Resources B.V. | A vessel, especially a drillship, provided with a moon pool |
US10640172B2 (en) * | 2015-05-04 | 2020-05-05 | Gustomsc B.V. | Vessel, especially a drillship, provided with a moon pool |
KR20170079964A (en) * | 2015-12-31 | 2017-07-10 | 대우조선해양 주식회사 | Install structure of fluid transfer line and install method for spread mooring marine plant |
CN113335468A (en) * | 2021-06-01 | 2021-09-03 | 中国长江三峡集团有限公司 | Offshore wind power and hydrogen production floating foundation structure and balancing method |
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Legal Events
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A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020115 |