JP2001180584A - Semisubmersible type floating structure - Google Patents
Semisubmersible type floating structureInfo
- Publication number
- JP2001180584A JP2001180584A JP36289499A JP36289499A JP2001180584A JP 2001180584 A JP2001180584 A JP 2001180584A JP 36289499 A JP36289499 A JP 36289499A JP 36289499 A JP36289499 A JP 36289499A JP 2001180584 A JP2001180584 A JP 2001180584A
- Authority
- JP
- Japan
- Prior art keywords
- floating
- column
- semi
- floating body
- additional
- 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.)
- Pending
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、セミサブ型浮体構
造物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semi-sub type floating structure.
【０００２】[0002]
【従来の技術】海上に浮かべて使用される大型浮体構造
物は、ヘリポートや海上作業台あるいは被災地の岸壁等
として多種用途に使用される。最近では空港として使用
するため、超大型のものも開発が進められている。そし
て、大型浮体構造物の代表的な形式には、函体の構造物
を海上に浮かべて使用するポンツーン形式のものと、海
中に半没水する複数本の浮体コラムで上部デッキを支持
するセミサブ形式のものがある。2. Description of the Related Art Large floating structures floating on the sea are used for various purposes, such as heliports, offshore work platforms, and quays in stricken areas. Recently, ultra-large ones are being developed for use as airports. Typical types of large floating structures include a pontoon type that uses a box structure floating on the sea, and a semi-sub that supports the upper deck with multiple floating columns that are semi-submerged in the sea. There are forms.
【０００３】ポンツーン型のものは、構造が単純で建造
し易く安価であり、また、函体構造であることから大き
な復元力が働き、例えば、浮体上に航空機等の大きな上
載荷重がかかったとしても、上載荷重エリアの沈下量は
小さく、浮体の変形量も小さく抑えられると云う特徴を
有している。ただ波浪に対しては応答性が高く、また、
受ける波浪荷重も大きい。The pontoon type has a simple structure, is easy to construct and is inexpensive, and has a large restoring force due to its box structure. For example, when a large overload of an aircraft or the like is applied on a floating body, However, there is a feature that the amount of settlement of the overlying load area is small and the amount of deformation of the floating body can be suppressed to be small. However, it is highly responsive to waves,
The received wave load is also large.
【０００４】セミサブ型のものは、構造は複雑になる
が、受ける波浪荷重が小さく、波浪中での動揺が少なく
動的性能に優れている。しかし、コラム全体の水線面積
を抑えながら、所要の浮力を持たせるようコラム径やコ
ラム間隔を設定しており、このような少ない水線面積を
もつコラムで浮体を支える構造であるから、大きな上載
荷重がかかると、そのエリアの沈下量が大きくなり、浮
体の変形量が大きくなると云う欠点がある。[0004] The semi-sub type has a complicated structure, but receives a small wave load, is less swayed in waves, and has excellent dynamic performance. However, the column diameter and the column spacing are set so as to have the required buoyancy while suppressing the water line area of the entire column. When an overload is applied, there is a disadvantage that the amount of settlement in that area increases, and the amount of deformation of the floating body increases.
【０００５】勿論、浮体全体の剛性構造を考慮しなけれ
ばならないが、一試算例によると、上部デッキの深さ４
ｍ、上下面の板厚２０0000339c、コラム径９．５ｍ、ス
パン３０ｍとして、５００ｔの上載荷重がかかったとし
た場合、ポンツーン型ではスパン３０ｍ×３０ｍのエリ
アに９．２ｔ／0000339dの復元力が働き、これを両端支
持の単純梁として考えた梁の撓み量は３0000339c程度で
ある。[0005] Of course, the rigid structure of the entire floating body must be considered.
m, the thickness of the upper and lower surfaces is 2000000339c, the column diameter is 9.5m, and the span is 30m. If it is assumed that an overload of 500t is applied, the pontoon type will have a restoring force of 9.2t / 0000339d in the area of 30m × 30m span. Considering this as a simple beam supported at both ends, the deflection amount of the beam is about 30,000339c.
【０００６】これに対しセミサブ型では、同様のエリア
で０．７３ｔ／0000339dの復元力しか得られず、全体の
広い範囲に渡って沈下するので、撓み量は３４０000033
9cと大きくなる。 この撓み量を小さく抑えるために
は、上部デッキの剛性を増加させる方法と、コラム径を
大きく、コラム間隔を小さくし、コラムの水線面積を大
きくして浮力を増大させる方法等が考えられる。On the other hand, in the semi-sub type, only a restoring force of 0.73t / 0000339d is obtained in the same area, and the semi-sub type is settled over a wide range, so that the flexing amount is 30000033.
9c is large. In order to suppress the amount of deflection, a method of increasing the rigidity of the upper deck, a method of increasing the column diameter, decreasing the column interval, and increasing the water line area of the column to increase buoyancy can be considered.
【０００７】しかし、前者の上部デッキの剛性を増加さ
せる方法では、板厚を厚くするか、補強材を増やすこと
になるから、上部デッキの重量が増加するし、コストア
ップになる。また、後者の浮力を増大させる方法では、
波浪中での動的性能が劣化し、セミサブ型の特徴点を損
なうことになる。However, in the former method of increasing the rigidity of the upper deck, the thickness of the upper deck is increased or the reinforcing material is increased, so that the weight of the upper deck is increased and the cost is increased. Also, in the latter method of increasing buoyancy,
The dynamic performance in waves deteriorates, and the characteristic point of the semi-sub type is lost.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、大型浮体構
造物においてセミサブ型の特徴点を生かしつつ、さらに
復元力を増大させることを狙いとし、波浪中での動揺量
が少なく、かつ、上載荷重の変動による浮体の変形を極
力少なく抑えることができるセミサブ型浮体構造物の浮
体形状を得ることを目的とする。SUMMARY OF THE INVENTION The present invention aims at further increasing the restoring force of a large floating structure while utilizing the features of the semi-sub type, so that the amount of motion in waves is small and the size of the floating structure is large. It is an object of the present invention to obtain a floating shape of a semi-sub type floating structure capable of minimizing deformation of the floating body due to a change in load.
【０００９】[0009]
【課題を解決するための手段】本発明は、セミサブ型浮
体構造物であって、浮体コラムが水線面を切る位置だけ
に、浮体コラムの断面積を大きくする付加浮力部を形成
し、復元力を大きくした。また、浮体コラム外面に付加
浮体を取付けて付加浮力部を形成した。さらに、大荷重
がかかることが想定されるゾーンの浮体コラムにだけ付
加浮力部を形成した。SUMMARY OF THE INVENTION The present invention relates to a semi-sub type floating structure, in which an additional buoyancy portion for enlarging the sectional area of the floating column is formed only at a position where the floating column crosses the water line surface, and is restored. Increased power. Further, an additional floating body was attached to the outer surface of the floating body column to form an additional buoyancy portion. Further, an additional buoyancy portion was formed only on the floating column in a zone where a large load is expected to be applied.
【００１０】[0010]
【発明の実施の形態】以下図に沿って本発明の実施の形
態について説明する。図１は本発明の浮体構造物の概略
を示す側面図、図２は同正面図、図３は付加浮体を取付
けた部分の平面図である。１は上部デッキ、２は浮体コ
ラムであって、浮体コラム２は自体の浮力により海面３
に浮上して上部デッキ１を支えている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view schematically showing a floating structure of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a plan view of a portion to which an additional floating body is attached. 1 is an upper deck, 2 is a floating column, and the floating column 2 is a sea surface 3 by its own buoyancy.
And is supporting the upper deck 1.
【００１１】４は、浮体コラム２の水線面を切る位置に
おける断面積を３倍ないし１０倍に増大させるように形
成された付加浮力部である。該付加浮力部４は、浮体コ
ラム２の外周面にリング状の付加浮体４′を取付けても
よく図３（Ａ）、浮体コラム２の当該部を拡径した構造
としてもよい。また、リング状でなく、浮体コラム２の
外方に幾つか突出する形状の付加浮体４″としてもよい
図３（Ｂ）。Reference numeral 4 denotes an additional buoyancy portion formed so as to increase the cross-sectional area of the floating body column 2 at a position where it crosses the water line surface three to ten times. The additional buoyancy section 4 may be provided with a ring-shaped additional floating body 4 ′ attached to the outer peripheral surface of the floating body column 2, and may have a structure in which the diameter of the relevant section of the floating body column 2 is enlarged as shown in FIG. FIG. 3B is a diagram illustrating an additional floating body 4 ″ that is not ring-shaped but has a shape that protrudes outside the floating body column 2.
【００１２】例えば、リング状の付加浮力部４とした場
合、コラム径の２倍の径とすると、断面積は４倍とな
る。また、この付加浮力部４の構造強度上および波浪に
よる衝撃を避けるため、図示するように、浮体コラム２
の元部での長さＬ２を長くし、先部の長さＬ１を短くし
て、外方に向かって絞る形状としている。For example, in the case of the ring-shaped additional buoyancy portion 4, if the diameter is twice the column diameter, the cross-sectional area becomes four times. As shown in the drawing, the floating column 2
The length L2 at the base portion is increased and the length L1 at the front portion is shortened so that the shape is narrowed outward.
【００１３】本発明の構成は以上の通りであって、次に
その作用について説明する。浮体コラム２の水線面を切
る位置に、付加浮力部４を形成しているので、上部デッ
キ１上に大荷重がかかっても、付加浮力による復元力が
発生するので、その分浮体コラム２の沈下が抑えられ、
上部デッキ１の撓みが減少される。The configuration of the present invention is as described above, and the operation thereof will be described below. Since the additional buoyancy portion 4 is formed at a position where the floating column 2 crosses the water line surface, even if a large load is applied to the upper deck 1, a restoring force due to the additional buoyancy is generated. Is suppressed,
The deflection of the upper deck 1 is reduced.
【００１４】例えば、浮体コラム２の２倍の直径とした
リング状の付加浮力部４を形成すれば、断面積は４倍と
なり、従って、荷重がかかった場合の浮力による復元力
も４倍となる。For example, if the ring-shaped additional buoyant portion 4 having a diameter twice as large as that of the floating column 2 is formed, the cross-sectional area is quadrupled, and the restoring force due to buoyancy when a load is applied is also quadrupled. .
【００１５】前記試算例のごとく、コラム径が９．５
ｍ、間隔が３０ｍとして、９０×９０ｍのエリアで平均
的に１０0000339d沈下したとすると、付加浮力部４を形
成していないコラムでは、該エリアの復元力は６５ｔで
あるが、上記径を２倍としたリング状の付加浮力部４を
形成している場合は、２６１ｔの復元力が得られる。つ
まり、仮に該エリアに航空機荷重（５００ｔ）がかかる
としても、その半分以上の荷重は復元力によって支えら
れ、上部デッキ１の撓み量は１／２になる。As shown in the above calculation example, the column diameter is 9.5.
Assuming that the average swelling is 1000000339d in an area of 90 × 90m with an interval of 30m, the restoring force of the area without the additional buoyancy part 4 is 65t, but the diameter is doubled. When the ring-shaped additional buoyancy portion 4 is formed, a restoring force of 261 t is obtained. That is, even if an aircraft load (500 t) is applied to the area, a load of half or more of the load is supported by the restoring force, and the amount of deflection of the upper deck 1 is reduced to half.
【００１６】なお、付加浮力部４の厚みであるが、先部
の長さＬ１を、上部デッキ１の許容される撓み量から、
逆算して設定される浮体コラム２の沈下量よりも大きく
とればよい。通常浮体コラム２の沈下量は３０0000339d
以下に設定されると考えられるので、３０0000339d以
上、５０0000339d程度あれば充分である。元部での長さ
Ｌ２は、付加浮力部４の構造強度上および波浪による衝
撃を避けるため高くしたものであり、１ｍ程度でよく、
全体的に薄い形状である。The thickness L of the additional buoyancy portion 4 is determined by determining the length L1 of the tip portion from the allowable bending amount of the upper deck 1.
What is necessary is just to set it larger than the sinking amount of the floating body column 2 set by back calculation. Normally, the sinking amount of the floating column 2 is 300000339d
Since it is considered to be set as follows, it is sufficient if the value is not less than 300,000339d and about 500,000339d. The length L2 at the base portion is increased in view of the structural strength of the additional buoyancy portion 4 and to avoid impact due to waves, and may be about 1 m.
The overall shape is thin.
【００１７】このような付加浮力部４を浮体コラム２に
形成するので、波浪外力は増大することとなるが、波高
が１ｍを越す高い波になると、波面はこの付加浮力部４
の上下に達することになる。つまり、波高が小さいとき
の波浪特性は若干劣化するが、波高が高いときの波浪特
性には影響がない。Since such an additional buoyancy portion 4 is formed in the floating body column 2, the external force of the waves increases, but when the wave height becomes higher than 1 m, the wave surface becomes larger.
Up and down. That is, the wave characteristics when the wave height is small are slightly deteriorated, but the wave characteristics when the wave height is high are not affected.
【００１８】また、付加浮力部４は大荷重がかかるとこ
ろの浮体コラム２に付ければよい。例えば、該浮体構造
物を空港として使用する場合の滑走路部分の下方等であ
り、殆どの場合浮体構造物の内側であるから、内側の浮
体コラム２だけに付加浮力部４を付ければよいことにな
る。（図２参照）。このように、内側の浮体コラム２だ
けに付けたときは、内側の浮体コラム２には波の影響は
あまりなく、浮体構造物全体としての波浪特性は殆ど変
化しない。Further, the additional buoyancy section 4 may be attached to the floating column 2 where a large load is applied. For example, when the floating structure is used as an airport, such as below a runway portion, and most of the time it is inside the floating structure, the additional buoyancy portion 4 may be attached only to the inner floating column 2. become. (See FIG. 2). As described above, when only the inner floating body column 2 is attached, the inner floating body column 2 is hardly affected by waves, and the wave characteristics of the entire floating structure are hardly changed.
【００１９】[0019]
【発明の効果】本発明は、浮体コラムの水線面を切る位
置に、浮体コラムの断面積を大きくする付加浮力部を形
成したので、付加浮力によって増大される復元力で、上
載荷重の一部を支持することができる。このため、上載
荷重がかかる部分の浮体コラムの沈下量を小さくでき、
上部デッキの撓み量を小さく抑えることができるように
なった。According to the present invention, an additional buoyancy portion for increasing the cross-sectional area of the floating column is formed at a position where the floating column is crossed with the water line surface. Parts can be supported. For this reason, the sinking amount of the floating column at the portion where the loading load is applied can be reduced,
The amount of deflection of the upper deck can be reduced.
【００２０】また、付加浮力部を薄い形状としているの
で、波高が小さいときは付加浮力部に波浪外力を受ける
ものの、波高が大きい波のときは付加浮力部を通過し、
コラムにだけ波浪外力を受けることになる。したがっ
て、波浪特性に影響はでず、セミサブ方式の優れた波浪
特性を維持することができる。Further, since the additional buoyancy portion is formed in a thin shape, when the wave height is small, the additional buoyancy portion receives a wave external force, but when the wave height is large, the additional buoyancy portion passes through the additional buoyancy portion,
Only the column receives the external wave force. Therefore, the wave characteristics are not affected, and the excellent wave characteristics of the semi-sub system can be maintained.
【図１】本発明による浮体構造物の概略を示す側面図。FIG. 1 is a side view schematically showing a floating structure according to the present invention.
【図２】同じく正面図。FIG. 2 is a front view of the same.
【図３】同じく付加浮体を取付けた部分の平面図。FIG. 3 is a plan view of a portion to which the additional floating body is attached.
１ 上部デッキ ２ 浮体コラム ３ 海面 ４ 付加浮力部 1 Upper Deck 2 Floating Column 3 Sea Surface 4 Additional Buoyancy
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１１年１２月２１日（１９９９．１２．
２１）[Submission date] December 21, 1999 (1999.12.
21)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Correction target item name] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００５】勿論、浮体全体の剛性構造を考慮しなけれ
ばならないが、一試算例によると、上部デッキの深さ４
ｍ、上下面の板厚２０mm、コラム径９．５ｍ、スパン３
０ｍとして、５００ｔの上載荷重がかかったとした場
合、ポンツーン型ではスパン３０ｍ×３０ｍのエリアに
９．２ｔ／cmの復元力が働き、これを両端支持の単純梁
として考えた梁の撓み量は３mm程度である。[0005] Of course, the rigid structure of the entire floating body must be considered.
m, upper and lower plate thickness 20mm, column diameter 9.5m, span 3
Assuming that an overload of 500 t is applied at 0 m, a restoring force of 9.2 t / cm acts on an area of 30 m × 30 m in the pontoon type, and the bending amount of the beam, which is considered as a simple beam supported at both ends, is 3 mm. It is about.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００６[Correction target item name] 0006
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００６】これに対しセミサブ型では、同様のエリア
で０．７３ｔ／cmの復元力しか得られず、全体の広い範
囲に渡って沈下するので、撓み量は３４０mmと大きくな
る。この撓み量を小さく抑えるためには、上部デッキの
剛性を増加させる方法と、コラム径を大きく、コラム間
隔を小さくし、コラムの水線面積を大きくして浮力を増
大させる方法等が考えられる。On the other hand, in the semi-sub type, only a restoring force of 0.73 t / cm can be obtained in the same area, and it sinks over a wide range, so that the bending amount is as large as 340 mm. In order to suppress the amount of deflection, a method of increasing the rigidity of the upper deck, a method of increasing the column diameter, decreasing the column interval, and increasing the water line area of the column to increase buoyancy can be considered.
【手続補正３】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１５[Correction target item name] 0015
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１５】前記試算例のごとく、コラム径が９．５
ｍ、間隔が３０ｍとして、９０×９０ｍのエリアで平均
的に１０cm沈下したとすると、付加浮力部４を形成して
いないコラムでは、該エリアの復元力は６５ｔである
が、上記径を２倍としたリング状の付加浮力部４を形成
している場合は、２６１ｔの復元力が得られる。つま
り、仮に該エリアに航空機荷重（５００ｔ）がかかると
しても、その半分以上の荷重は復元力によって支えら
れ、上部デッキ１の撓み量は１／２になる。As shown in the above calculation example, the column diameter is 9.5.
Assuming that an average sunk distance of 10 cm in an area of 90 × 90 m with an interval of 30 m, the restoring force of the area where the additional buoyancy portion 4 is not formed is 65 t, but the diameter is doubled. When the ring-shaped additional buoyancy portion 4 is formed, a restoring force of 261 t is obtained. That is, even if an aircraft load (500 t) is applied to the area, a load of half or more of the load is supported by the restoring force, and the amount of deflection of the upper deck 1 is reduced to half.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１６[Correction target item name] 0016
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１６】なお、付加浮力部４の厚みであるが、先部
の長さＬ１を、上部デッキ１の許容される撓み量から、
逆算して設定される浮体コラム２の沈下量よりも大きく
とればよい。通常浮体コラム２の沈下量は３０cm以下に
設定されると考えられるので、３０cm以上、５０cm程度
あれば充分である。元部での長さＬ２は、付加浮力部４
の構造強度上および波浪による衝撃を避けるため高くし
たものであり、１ｍ程度でよく、全体的に薄い形状であ
る。The thickness L of the additional buoyancy portion 4 is determined by determining the length L1 of the tip portion from the allowable bending amount of the upper deck 1.
What is necessary is just to set it larger than the sinking amount of the floating body column 2 set by back calculation. Usually, the sinking amount of the floating body column 2 is considered to be set to 30 cm or less, so that 30 cm or more and about 50 cm are sufficient. The length L2 at the base part is the additional buoyancy part 4
The height is increased in view of the structural strength of the device and to avoid impacts due to waves, and may be about 1 m, and the overall shape is thin.
Claims (4)
るセミサブ型浮体構造物であって、浮体コラムが水線面
を切る位置だけに、浮体コラムの断面積を大きくする付
加浮力部を形成し、上部デッキに上載荷重がかかったと
きの復元力を大きくしたことを特徴とするセミサブ型浮
体構造物。1. A semi-sub type floating structure for supporting an upper deck with a plurality of floating columns, wherein an additional buoyancy portion for increasing a sectional area of the floating column is formed only at a position where the floating column crosses a water line surface. A semi-sub type floating structure characterized by having an increased restoring force when an overload is applied to the upper deck.
取付けて付加浮力部を構成したことを特徴とする請求項
１記載のセミサブ型浮体構造物。2. The semi-sub type floating structure according to claim 1, wherein a ring-shaped additional floating body is attached to an outer surface of the floating body column to form an additional buoyancy portion.
体を取付けて付加浮力部を構成したことを特徴とする請
求項１記載のセミサブ型浮体構造物。3. The semi-sub type floating body structure according to claim 1, wherein an additional floating body protruding outward is attached to an outer surface of the floating body column to form an additional buoyancy portion.
コラムに付加浮力部を形成したことを特徴とする請求項
１または請求項２または請求項３記載のセミサブ型浮体
構造物。4. The semi-sub type floating structure according to claim 1, wherein an additional buoyancy portion is formed on a floating column at a position where an upper load is applied to the upper deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36289499A JP2001180584A (en) | 1999-12-21 | 1999-12-21 | Semisubmersible type floating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36289499A JP2001180584A (en) | 1999-12-21 | 1999-12-21 | Semisubmersible type floating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001180584A true JP2001180584A (en) | 2001-07-03 |
Family
ID=18478005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36289499A Pending JP2001180584A (en) | 1999-12-21 | 1999-12-21 | Semisubmersible type floating structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001180584A (en) |
Cited By (7)
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|---|---|---|---|---|
| WO2008004608A1 (en) * | 2006-07-07 | 2008-01-10 | Ihi Marine United Inc. | Auxiliary float of floating structure and method for remodeling floating structure |
| JP2011521820A (en) * | 2008-04-23 | 2011-07-28 | プリンシプル・パワー・インコーポレーテツド | Column-stabilized offshore platform with water entrapment plate and asymmetric mooring system for offshore wind turbine support |
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| US9879654B2 (en) | 2013-05-20 | 2018-01-30 | Principle Power, Inc. | System and method for controlling offshore floating wind turbine platforms |
| WO2018096650A1 (en) * | 2016-11-25 | 2018-05-31 | ジャパンマリンユナイテッド株式会社 | Floating structure |
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| US11225945B2 (en) | 2019-05-30 | 2022-01-18 | Principle Power, Inc. | Floating wind turbine platform controlled to optimize power production and reduce loading |
-
1999
- 1999-12-21 JP JP36289499A patent/JP2001180584A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008004608A1 (en) * | 2006-07-07 | 2008-01-10 | Ihi Marine United Inc. | Auxiliary float of floating structure and method for remodeling floating structure |
| US8025020B2 (en) | 2006-07-07 | 2011-09-27 | Ihi Marine United Inc. | Auxiliary float of floating structure and method for remodeling floating structure |
| JP2011521820A (en) * | 2008-04-23 | 2011-07-28 | プリンシプル・パワー・インコーポレーテツド | Column-stabilized offshore platform with water entrapment plate and asymmetric mooring system for offshore wind turbine support |
| JP2015016860A (en) * | 2008-04-23 | 2015-01-29 | プリンシプル・パワー・インコーポレーテツド | Column-stabilized offshore platform with water-entrapment plates and asymmetric mooring system for support of offshore wind turbines |
| JP2015037935A (en) * | 2008-04-23 | 2015-02-26 | プリンシプル・パワー・インコーポレーテツド | Column-stabilized offshore platform with water-entrapment plates and asymmetric mooring system for support of offshore wind turbines |
| US9446822B2 (en) | 2008-04-23 | 2016-09-20 | Principle Power, Inc. | Floating wind turbine platform with ballast control and water entrapment plate systems |
| US9810204B2 (en) | 2010-10-15 | 2017-11-07 | Principle Power, Inc. | Floating wind turbine platform structure with optimized transfer of wave and wind loads |
| US9879654B2 (en) | 2013-05-20 | 2018-01-30 | Principle Power, Inc. | System and method for controlling offshore floating wind turbine platforms |
| US10267293B2 (en) | 2013-05-20 | 2019-04-23 | Principle Power, Inc. | Methods for controlling floating wind turbine platforms |
| US10421524B2 (en) | 2014-10-27 | 2019-09-24 | Principle Power, Inc. | Connection system for array cables of disconnectable offshore energy devices |
| US10858075B2 (en) | 2014-10-27 | 2020-12-08 | Principle Power, Inc. | Floating electrical connection system for offshore energy devices |
| WO2018096650A1 (en) * | 2016-11-25 | 2018-05-31 | ジャパンマリンユナイテッド株式会社 | Floating structure |
| JPWO2018096650A1 (en) * | 2016-11-25 | 2019-07-04 | ジャパンマリンユナイテッド株式会社 | Floating structure |
| US11225945B2 (en) | 2019-05-30 | 2022-01-18 | Principle Power, Inc. | Floating wind turbine platform controlled to optimize power production and reduce loading |
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