JPH0371320B2 - - Google Patents
Info
- Publication number
- JPH0371320B2 JPH0371320B2 JP58194942A JP19494283A JPH0371320B2 JP H0371320 B2 JPH0371320 B2 JP H0371320B2 JP 58194942 A JP58194942 A JP 58194942A JP 19494283 A JP19494283 A JP 19494283A JP H0371320 B2 JPH0371320 B2 JP H0371320B2
- Authority
- JP
- Japan
- Prior art keywords
- submerged
- waterline
- hull
- semi
- center
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000033001 locomotion Effects 0.000 description 6
- 230000005571 horizontal transmission Effects 0.000 description 4
- 230000005570 vertical transmission Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Description
【発明の詳細な説明】
本発明は、半没水双胴船に関し、特に水線面下
の船体形状を前後対称にして、航行時の安定性を
向上させた半没水双胴船に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a semi-submerged catamaran, and more particularly to a semi-submerged catamaran in which the hull shape below the waterline is made longitudinally symmetrical to improve stability during navigation.
第１〜４図および第６図に左右２つの没水体と
上部船体とがそれぞれ１個の支柱で連結された半
没水双胴船を、また第５，７図に左右２つの没水
体と上部船体とがそれぞれ２個の支柱で連結され
た半没水双胴船をそれぞれ示す。 Figures 1 to 4 and Figure 6 show a semi-submerged catamaran with two left and right submerged bodies and an upper hull connected by one strut, and Figures 5 and 7 show a semi-submerged catamaran with two left and right submerged bodies and an upper hull connected by one strut. Each of the semi-submerged catamarans is shown connected to the upper hull by two struts.
第１〜７図において、第１，５図は側面図、第
２図は正面図、第３図は背面図、第４図は上面
図、第６図は第１図の−断面図、第７図は第
５図の−断面図であり、符号１は上部船体、
１′は上部船体の下面、２ａ，２ｂは没水体、３
ａ，３a′，３ｂ，３b′は支柱、４ａ，４a′，４
ｂ，４b′は支柱補強部、５ａ，５ｂはプロペラ、
６ａ，６ｂは舵、７ａ，７ｂは前部水中翼、８
ａ，８ｂは後部水中翼、９は喫水線、１０は船
室、１１は操縦室、１２ａ，１２ｂは機関室、１
３ａ，１３ｂはエンジン、１４ａ，１４ｂは推進
軸、１５ａ，１５ｂは垂直伝達軸、１６ａ，１６
ｂは水平伝達軸１７ａ，１７a′，１７ｂ，１７
b′は第１ギアセツト、１８ａ，１８a′，１８ｂ，
１８b′は第２ギアセツト、１９はブルワーク、２
０ａ，２０a′，２０ｂ，２０b′は双胴船の内側に
発生する波、２1a，２１′ａ，２１ｂ，２１′ｂ
は双胴船の外側に発生する波、Ａは波２０ａ，２
０ｂの重合点、A′は波２０a′，２０b′の重合点、
Ｂは波２０ａ，２０ｂが支柱で反射したあとの波
の重合点、Ｐは浮心（前後）位置、Ｆは浮面心、
ｌは浮心Ｐと浮面心Ｆとの前後方向の距離をそれ
ぞれ示しており、各符号における添字ａは左舷
側、添字ｂは右舷側にそれぞれ示している。 In Figures 1 to 7, Figures 1 and 5 are side views, Figure 2 is a front view, Figure 3 is a rear view, Figure 4 is a top view, Figure 6 is a cross-sectional view of Figure 1, and Figure 6 is a cross-sectional view of Figure 1. Figure 7 is a - sectional view of Figure 5, where numeral 1 indicates the upper hull;
1' is the lower surface of the upper hull, 2a and 2b are submerged bodies, 3
a, 3a', 3b, 3b' are pillars, 4a, 4a', 4
b, 4b' are pillar reinforcement parts, 5a, 5b are propellers,
6a, 6b are rudders, 7a, 7b are front hydrofoils, 8
a, 8b are the rear hydrofoils, 9 is the waterline, 10 is the cabin, 11 is the cockpit, 12a, 12b is the engine room, 1
3a, 13b are engines, 14a, 14b are propulsion shafts, 15a, 15b are vertical transmission shafts, 16a, 16
b is the horizontal transmission shaft 17a, 17a', 17b, 17
b' is the first gear set, 18a, 18a', 18b,
18b' is the second gear set, 19 is the bulwark, 2
0a, 20a', 20b, 20b' are waves generated inside the catamaran, 21a, 21'a, 21b, 21'b
is the wave generated on the outside of the catamaran, A is the wave 20a, 2
The polymerization point of 0b, A' is the polymerization point of waves 20a' and 20b',
B is the merging point of the waves 20a and 20b after they are reflected by the strut, P is the center of buoyancy (front and back) position, F is the center of buoyancy,
l indicates the distance in the longitudinal direction between the center of buoyancy P and the center of buoyancy F, and the subscript a in each code indicates the port side, and the subscript b indicates the starboard side.
半没水双胴船は、第１〜７図に示すように水面
下に設けられた左右２つの没水体２ａ，２ｂと、
水面上に位置し広い面積を有する上部船体１と、
水面を貫通してそれぞれの没水体２ａ，２ｂと上
部船体１とを連結するそれぞれ１個または２個の
支柱３ａ，３a′，３ｂ，３b′とによつて構成され
ている。そして第６，７図に示すように、支柱３
ａ，３a′，３ｂ，３b′の水線面積（支柱の喫水線
９における断面積）が著しく小さいことを特徴と
している。 As shown in Figs. 1 to 7, the semi-submerged catamaran has two submerged bodies 2a and 2b on the left and right, which are provided below the water surface.
an upper hull 1 located on the water surface and having a large area;
It is constituted by one or two struts 3a, 3a', 3b, 3b' which penetrate through the water surface and connect the submerged bodies 2a, 2b to the upper hull 1, respectively. Then, as shown in Figures 6 and 7, the pillar 3
A, 3a', 3b, 3b' are characterized by a significantly small waterline area (cross-sectional area at the waterline 9 of the strut).
このため、波浪中での波による強制力を小さく
することができ、船体運動を減少させることがで
きる。また、造波抵抗を減少させて高速域での船
体抵抗を少なくすることが可能となり、波浪中で
も高速で航走することが可能となつている。 Therefore, it is possible to reduce the force exerted by waves in waves, and the movement of the ship can be reduced. In addition, it has become possible to reduce wave-making resistance and reduce hull resistance at high speeds, making it possible to sail at high speed even in waves.
しかし、その反面水線面積が小さくかつその上
下方向への変化が少ないことから予備浮力が小さ
く、この結果船体運動が生じた場合の減衰力が小
かく、また航走時の姿勢が速力によつて大きく変
化する欠点がある。 However, on the other hand, because the waterline area is small and its vertical change is small, the reserve buoyancy is small, and as a result, the damping force when the hull moves is small, and the attitude during sailing depends on the speed. There are drawbacks that vary greatly.
このため、前部水中翼７ａ，７ｂおよび後部水
中翼８ａ，８ｂが設けられ場合によつてはこれら
の迎角を制御して、船体運動を減衰させ、船の姿
勢を安定させるようにされている。 For this reason, front hydrofoils 7a, 7b and rear hydrofoils 8a, 8b are provided, and in some cases, their angle of attack is controlled to damp the hull motion and stabilize the attitude of the ship. There is.
また、支柱３ａ，３a′，３ｂ，３b′の幅が小さ
いためエンジン１３ａ，１３ｂを没水体２ａ，２
ｂおよび支柱３ａ，３a′，３ｂ，３b′内には収容
できず、第１，４，５図に示すようにプロペラ５
ａ，５ｂは、推進軸１４ａ，１４ｂ、第１ギアセ
ツト１７ａ，１７a′，１７ｂ，１７b′、垂直伝達
軸１５ａ，１５ｂ、第２ギアセツト１８ａ，１８
a′，１８ｂ，１８b′、水平伝達軸１６ａ，１６ｂ
を介してエンジン１３ａ，１３ｂに接続され駆動
されている。 Also, since the widths of the struts 3a, 3a', 3b, 3b' are small, the engines 13a, 13b are not connected to the submerged bodies 2a, 2a, 3b'.
The propeller 5 cannot be accommodated in the struts 3a, 3a', 3b, 3b' as shown in Figures 1, 4 and 5.
a, 5b are propulsion shafts 14a, 14b, first gear sets 17a, 17a', 17b, 17b', vertical transmission shafts 15a, 15b, second gear sets 18a, 18
a', 18b, 18b', horizontal transmission shafts 16a, 16b
It is connected to and driven by engines 13a and 13b via.
しかしこのよな半没水双胴船は、追い波中を航
走する際に、すりこぎ運動を生じて方向不安定と
なり易い欠点がある。 However, such a semi-submerged catamaran has the disadvantage that when sailing through following waves, it tends to cause a grinding motion and become unstable in direction.
この欠点を解消するには半没水双胴船の浮心の
船長方向における位置Ｐと、支柱３ａ，３a′，３
ｂ，３b′を喫水線９で切つた断面である水線面の
浮面心Ｆとの距離ｌを出来る限り小さくすること
が必要である。 In order to eliminate this drawback, the position P of the center of buoyancy in the longitudinal direction of the semi-submerged catamaran, and the support columns 3a, 3a', 3
It is necessary to make the distance 1 between the waterline surface, which is the cross section of b, 3b' cut at the waterline 9, and the center of floating surface F, as small as possible.
このため従来の半没水双胴船においては、第
６，７図に示すように船尾側の水線面をできるだ
け狭くして、浮面心Ｆができるだけ前方に位置す
るよう配慮されているが船尾側にはプロペラ５
ａ，５ｂおよび舵６ａ，６ｂが設けられており、
それらの配置上の制約から距離ｌを十分に小さく
することはできない。 For this reason, in conventional semi-submerged catamarans, as shown in Figures 6 and 7, the water line on the stern side is made as narrow as possible so that the center of floating surface F is located as far forward as possible. Propeller 5 on the side
a, 5b and rudders 6a, 6b are provided,
Due to constraints on their arrangement, the distance l cannot be made sufficiently small.
本発明は、このような実情に鑑み、船体の浮心
と水線面の浮面心とが一致するようにして、すり
こぎ状の船体運動が生じないようにした半没水双
胴船を提供することを目的とする。 In view of these circumstances, the present invention provides a semi-submerged catamaran in which the center of buoyancy of the hull and the center of buoyancy of the waterline surface coincide to prevent the occurrence of a wedge-shaped hull motion. The purpose is to
このため本発明の半没水双胴船は、水面下に位
置する左右一対の没水体と、水面上に位置する１
つの上部船体と、水面を貫通して上記上部船体を
上記左右一対の没水体にそれぞれ連結する一対以
上の支柱とをそなえた半没水双胴船において、浮
心の船長方向における位置を浮面心と一致させる
べく、船体の喫水線に沿う水線面の形状および喫
水線より下方の船体形状がいずれも前後対称に形
成されたことを特徴としている。 Therefore, the semi-submerged catamaran of the present invention has a pair of left and right submerged bodies located below the water surface, and one submerged body located above the water surface.
In a semi-submerged catamaran equipped with one upper hull and one or more pairs of struts that penetrate the water surface and connect the upper hull to the pair of left and right submerged bodies, the position of the center of buoyancy in the longitudinal direction is the center of the floating surface. The shape of the waterline surface along the waterline of the hull and the shape of the hull below the waterline are both symmetrical in the front and rear, in order to match the waterline.
以下図面により、本発明の実施例について説明
すると、第８，９，１１図は本発明の第１実施例
としての半没水双胴船を示すもので、第８図はそ
の側面図、第９図はその上面図、第１１図は第８
図のXI−XI線に沿う断面図であり、第１０，１２
図は本発明の第２実施例としての半没水双胴船を
示すもので、第１０図はその側面図、第１２図は
第１０図のXII−XII線に沿う断面図である。 Embodiments of the present invention will be described below with reference to the drawings. Figures 8, 9, and 11 show a semi-submerged catamaran as the first embodiment of the present invention, and Figure 8 is a side view thereof, and Figure 9 is the top view, Figure 11 is the 8th
It is a cross-sectional view along the XI-XI line in the figure, and
The figures show a semi-submerged catamaran as a second embodiment of the present invention, FIG. 10 is a side view thereof, and FIG. 12 is a sectional view taken along line XII--XII in FIG. 10.
第８〜１２図において既述の符号は、同様の部
分を示している。そして、矢印Ｃは前進方向を示
しており、この時の前方を船首側、後方を船尾側
とする。また符号５′ａ，５′ｂはプロペラ（船首
側）、６′ａ，６′ｂは舵（船首側）、１４′ａ，１
４′ｂは推進軸（船首側）、１７″ａ，１７″ｂは第
１ギアセツト（船首側）、１９′はブルワーク（船
尾側）、２２ａ，２２′ａ，２２ｂ，２２′ｂは流
体接手をそれぞれ示している。 The reference numerals already mentioned in FIGS. 8 to 12 indicate similar parts. Arrow C indicates the forward direction, and the forward direction at this time is the bow side and the rear side is the stern side. Also, 5'a, 5'b are propellers (bow side), 6'a, 6'b are rudders (bow side), 14'a, 1
4'b is the propulsion shaft (bow side), 17''a, 17''b are the first gear set (bow side), 19' is the bulwark (stern side), 22a, 22'a, 22b, 22'b are the fluid couplings are shown respectively.
まず本発明の第１実施例について説明すると、
第８，９，１１図に示すように、左右２つの没水
体２ａ，２ｂと１つの上部船体１とがそれぞれ１
個の支柱３ａ，３ｂで連結されており、支柱３
ａ，３ｂの上端以下の水面下の形状は完全に前後
対称に形成されている。 First, the first embodiment of the present invention will be explained.
As shown in Figures 8, 9, and 11, two submerged bodies 2a, 2b on the left and right and one upper hull 1 are connected to each other.
The pillars 3a and 3b connect the pillars 3a and 3b.
The shapes below the water surface below the upper ends of a and 3b are completely symmetrical.
すなわち、船体の喫水線９に沿う水線面の形状
（第１１図参照）およびその下方における船体形
状が、いずれも完全に前後対称に形成されてい
る。 That is, both the shape of the waterline surface along the waterline 9 of the hull (see FIG. 11) and the shape of the hull below the waterline are completely symmetrical from front to back.
船首部および船尾部にそれぞれ配設されたプロ
ペラ５ａ，５′ａ，５ｂ，５′ｂは、推進軸１４
ａ，１４′ａ，１４ｂ，１４′ｂ、第１ギアセツト
１７ａ，１７′ａ，１７″ａ，１７ｂ，１７′ｂ，
１７″ｂ、垂直伝達軸１５ａ，１５ｂ、第２ギア
セツト１８ａ，１８′ａ，１８ｂ，１８′ｂ、水平
伝達軸１６ａ，１６ｂを介してエンジン１３ａ，
１３ｂに接続されて駆動されるようになつてい
る。 Propellers 5a, 5'a, 5b, 5'b disposed at the bow and stern, respectively, are connected to a propulsion shaft 14.
a, 14'a, 14b, 14'b, first gear set 17a, 17'a, 17''a, 17b, 17'b,
17''b, vertical transmission shafts 15a, 15b, second gear sets 18a, 18'a, 18b, 18'b, horizontal transmission shafts 16a, 16b to the engine 13a,
13b to be driven.
また、推進軸１４ａ，１４′ａ，１４ｂ，１
４′ｂにはそれぞれ流体接手２２ａ，２２′ａ，２
２ｂ，２２′ｂが介装されており、これを操作す
ることによつて船尾部、船首部のプロペラ５ａ，
５′ａ，５ｂ，５′ｂをそれぞれ別々に、或いは一
緒に駆動することができるようになつている。 In addition, the propulsion shafts 14a, 14'a, 14b, 1
4'b have fluid couplings 22a, 22'a, 2, respectively.
2b, 22'b are interposed, and by operating these, propellers 5a,
5'a, 5b, and 5'b can be driven separately or together.
プロペラ５ａ，５′ａ，５ｂ，５b′の外側には
舵６ａ，６′ａ，６ｂ，６′ｂがそれぞれ配設され
ている。 Rudders 6a, 6'a, 6b, and 6'b are disposed outside the propellers 5a, 5'a, 5b, and 5b', respectively.
前部水中翼７ａ，７ｂ、後部水中翼８ａ，８ｂ
は同一寸法、形状とされるとともに前進、後進を
同じように行なうためその断面は円弧翼形とされ
ている。 Front hydrofoils 7a, 7b, rear hydrofoils 8a, 8b
They have the same size and shape, and their cross sections are arcuate airfoils in order to move forward and backward in the same way.
操縦室１１は船体中央部の船室１０の上部に設
けられており、船首、船尾の両方を見通すことが
でき、前進、後進いずれの場合も同じように船を
操縦することができるようになつている。 The cockpit 11 is located at the top of the cabin 10 in the center of the ship, and can see both the bow and stern, allowing the ship to be operated in the same way whether going forward or astern. There is.
上述のように、喫水線９に沿う水線面の形状お
よび喫水線９よりも下方の船体形状が完全に前後
対称に構成されているため、浮心の船長方向にお
ける位置Ｐが浮面心Ｆと一致し、追い波中を航走
する際にもすりこぎ運動は生じ難くなる。したが
つて、航走中の方向安定性が向上し、波浪中をい
ずれの方向にも極めて容易かつ安全に航走できる
ようになるのである。 As mentioned above, since the shape of the waterline surface along the waterline 9 and the shape of the hull below the waterline 9 are completely symmetrical, the position P in the longitudinal direction of the center of buoyancy coincides with the center of buoyancy F. , even when sailing through following waves, it becomes difficult for the ship to generate a grinding motion. Therefore, the directional stability during navigation is improved, and it becomes possible to navigate in any direction through waves extremely easily and safely.
また、前後にプロペラおよび舵をそなえるた
め、前後進が極めて容易で、操船も甚だしく容易
となる。この際、一般に前進時は船尾のプロペラ
５ａ，５ｂを、後進時は船首のプロペラ５′ａ，
５′ｂを主として使用し、前進時の操船は主とし
て船尾の舵６ａ，６ｂで、後進時の操船は主とし
て船首の舵６′ａ，６′ｂで行なうようにする。 In addition, since it has a propeller and a rudder at the front and rear, it is extremely easy to move forward and backward, and maneuvering the ship is also extremely easy. At this time, generally when moving forward, the stern propellers 5a and 5b are used, and when going astern, the bow propellers 5'a and 5b are used.
5'b are mainly used, and steering when moving forward is mainly done with the rudders 6a and 6b at the stern, and steering when going astern is done mainly with the rudders 6'a and 6'b at the bow.
本発明の第２実施例は、第１０，１２図に示し
たように、左右２つの没水体２ａ，２ｂと上部船
体１がそれぞれ２個の支柱３ａ，３′ａ，３ｂ，
３′ｂで連結されている。その他の構造は第１実
施例と同一である。 In the second embodiment of the present invention, as shown in FIGS. 10 and 12, the two left and right submerged bodies 2a, 2b and the upper hull 1 each have two columns 3a, 3'a, 3b,
They are connected at 3'b. The rest of the structure is the same as the first embodiment.
第２実施例でも、第１実施例と同様の作用効果
が得られる。 The second embodiment also provides the same effects as the first embodiment.
以上詳述したように、本発明の半没水双胴船に
よれば、水面下に位置する左右一対の没水体と、
水面上に位置する１つの上部船体と、水面を貫通
して上記上部船体を上記左右一対の没水体にそれ
ぞれ連結する一対以上の支柱とをそなえた半没水
双胴船において、浮心の船長方向における位置を
浮面心と一致させるべく、船体の喫水線に沿う水
線面の形状および喫水線より下方の船体形状がい
ずれも前後対称に形成されるという極めて簡素な
構成で、追い波中を航走する際にもすりこぎ運動
は生じ難くなつて方向安定性が向上する効果があ
り、波浪中をいずれの方向へも容易かつ安全に航
行し得る利点がある。 As detailed above, according to the semi-submerged catamaran of the present invention, a pair of left and right submerged bodies located below the water surface;
In a semi-submerged catamaran equipped with one upper hull located above the water surface and one or more pairs of struts that penetrate the water surface and connect the upper hull to the pair of left and right submerged bodies, the captain of the floating center In order to match the position in the direction with the center of the floating surface, the shape of the waterline along the waterline of the hull and the shape of the hull below the waterline are both formed longitudinally symmetrically, making it possible to navigate in following waves. This has the effect of improving directional stability as it is less likely to cause grinding motion when sailing, and it is possible to navigate in waves easily and safely in any direction.
第１〜４図は左右２つの没水体と上部船体とが
それぞれ１個の支柱で連結された従来の半没水双
胴船を示すもので、第１図はその側面図、第２図
はその正面図、第３図はその背面図、第４図はそ
の上面図であり、第５図は左右２つの没水体と上
部船体とがそれぞれ２個の支柱で連結された従来
の半没水双胴船を示すものであり、第６，７図は
上記従来の半没水双胴船の水線面形状を示すもの
で、第６図は第１図の−断面図、第７図は第
５図の−断面図であり、第８〜１２図は本発
明の実施例を示すもので、第８，９，１１図は本
発明の第１実施例としての半没水双胴船を示すも
ので、第８図はその側面図、第９図はその上面
図、第１１図は第８図のXI−XI線に沿う断面図で
あり、第１０，１２図は本発明の第２実施例とし
ての半没水双胴船を示すもので、第１０図はその
側面図、第１２図は第１０図のXII−XII線に沿う断
面図である。
１……上部船体、１′……上部船体の下面、２
ａ，２ｂ……没水体、３ａ，３′ａ，３′ｂ……支
柱、４ａ，４′ａ，４ｂ，４′ｂ……支柱補強部、
５ａ，５′ａ，５ｂ，５′ｂ……プロペラ、６ａ，
６′ａ，６′ｂ……舵、７ａ，７ｂ……前部水中
翼、８ａ，８ｂ……後部水中翼、９……喫水線、
１０……船室、１１……操縦室、１２ａ，１２ｂ
……機関室、１３ａ，１３ｂ……エンジン、１
4a，１４′ａ，１４ｂ，１４b′……推進軸、１５
ａ，１５ｂ……垂直伝達軸、１６ａ，１６ｂ……
水平伝達軸、１７ａ，１７′ａ，１７″ａ，１７
ｂ，１７′ｂ，１７″ｂ……第１ギアセツト、１８
ａ，１８′ａ，１８ｂ，１８′ｂ……第２ギアセツ
ト、１９，１９′……ブルワーク、２０ａ，２
０′ａ，２０ｂ，２０′ｂ……双胴船の内側に発生
する波、２１ａ，２１′ａ，２１ｂ，２１′ｂ……
双胴船の外側に発生する波、２２ａ，２２′ａ，
２２ｂ，２２′ｂ……流体接手、Ａ……波２０ａ，
２０ｂの重合点、A′……波２０′ａ，２０′ｂの
重合点、Ｂ……波２０ａ，２０ｂが支柱で反射し
たあとの波の重合点、Ｐ……浮心の船長方向にお
ける位置、Ｆ……浮面心、ｌ……浮心Ｐと浮面心
Ｆとの前後方向の距離。
Figures 1 to 4 show a conventional semi-submerged catamaran in which the two left and right submerged bodies and the upper hull are each connected by a single strut. Figure 1 is a side view, and Figure 2 is a side view of the ship. Figure 3 is its front view, Figure 3 is its rear view, Figure 4 is its top view, and Figure 5 is a conventional semi-submerged structure in which the two left and right submerged bodies and the upper hull are connected by two struts each. This figure shows a catamaran, and Figures 6 and 7 show the water line shape of the conventional semi-submerged catamaran. Figure 6 is a cross-sectional view of Figure 1, and Figure 7 is a cross-sectional view of Figure 1. 5 is a cross-sectional view of FIG. 5, and FIGS. 8 to 12 show embodiments of the present invention, and FIGS. 8, 9, and 11 show a semi-submerged catamaran as the first embodiment of the present invention. Fig. 8 is a side view thereof, Fig. 9 is a top view thereof, Fig. 11 is a sectional view taken along the line XI-XI of Fig. 8, and Figs. 10 is a side view thereof, and FIG. 12 is a sectional view taken along the line XII-XII in FIG. 10, showing a semi-submerged catamaran as an embodiment. 1...Upper hull, 1'...Lower surface of upper hull, 2
a, 2b... submerged body, 3a, 3'a, 3'b... pillar, 4a, 4'a, 4b, 4'b... pillar reinforcement part,
5a, 5'a, 5b, 5'b...propeller, 6a,
6'a, 6'b... Rudder, 7a, 7b... Front hydrofoil, 8a, 8b... Rear hydrofoil, 9... Waterline,
10... Cabin, 11... Cockpit, 12a, 12b
... Engine room, 13a, 13b ... Engine, 1
4a, 14'a, 14b, 14b'...propulsion shaft, 15
a, 15b... Vertical transmission shaft, 16a, 16b...
Horizontal transmission shaft, 17a, 17'a, 17''a, 17
b, 17'b, 17''b...1st gear set, 18
a, 18'a, 18b, 18'b... 2nd gear set, 19, 19'... Bulwark, 20a, 2
0'a, 20b, 20'b... Waves generated inside the catamaran, 21a, 21'a, 21b, 21'b...
Waves generated on the outside of the catamaran, 22a, 22'a,
22b, 22'b...Fluid joint, A...Wave 20a,
20b, A'...The combination point of the waves 20'a and 20'b, B...The combination point of the waves 20a and 20b after they have been reflected by the strut, P...The position of the center of buoyancy in the longitudinal direction , F...center of buoyancy, l...distance between center of buoyancy P and center of buoyancy F in the longitudinal direction.
Claims (1)
上に位置する１つの上部船体と、水面を貫通して
上記上部船体を上記左右一対の没水体にそれぞれ
連結する一対以上の支柱とをそなえた半没水双胴
船において、浮心の船長方向における位置を浮面
心と一致させるべく、船体の喫水線に沿う水線面
の形状および喫水線より下方の船体形状がいずれ
も前後対象に形成されたことを特徴とする、半没
水双胴船。1. A ship has a pair of left and right submerged bodies located below the water surface, an upper hull located above the water surface, and one or more pairs of struts that penetrate the water surface and connect the upper hull to the left and right pair of submerged bodies, respectively. In semi-submerged catamarans, the shape of the waterline surface along the waterline of the hull and the shape of the hull below the waterline were both formed to be symmetrical in order to align the center of buoyancy in the longitudinal direction with the center of buoyancy. A semi-submerged catamaran characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19494283A JPS6085090A (en) | 1983-10-18 | 1983-10-18 | Half-submerged catamaran |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19494283A JPS6085090A (en) | 1983-10-18 | 1983-10-18 | Half-submerged catamaran |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6085090A JPS6085090A (en) | 1985-05-14 |
| JPH0371320B2 true JPH0371320B2 (en) | 1991-11-12 |
Family
ID=16332893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19494283A Granted JPS6085090A (en) | 1983-10-18 | 1983-10-18 | Half-submerged catamaran |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6085090A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794558A (en) * | 1993-12-01 | 1998-08-18 | Pacific Marine Supply Co., Ltd. | Mid foil SWAS |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53140793A (en) * | 1977-05-11 | 1978-12-08 | Mitsubishi Heavy Ind Ltd | Dual hull ship |
-
1983
- 1983-10-18 JP JP19494283A patent/JPS6085090A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53140793A (en) * | 1977-05-11 | 1978-12-08 | Mitsubishi Heavy Ind Ltd | Dual hull ship |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6085090A (en) | 1985-05-14 |
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