1. A catamaran channel planing boat with a composite hull form comprises a high-speed catamaran with a stern part accounting for about 60% of the total length and a split-wave type single planing boat with a bow part accounting for about 40% of the total length, and is characterized in that the molded lines of the boat form at the bow are single planing boats with split-wave structures, and the molded lines of the boat form at the stern are the high-speed catamaran with the planing boat form.

2. A catamaran planing boat in the form of a composite hull according to claim 1, wherein the fore monohull structure length is around 40% of the length of the boat, and the aft catamaran structure length is around 60% of the length of the boat.

3. A catamaran planing boat in the form of a composite hull according to claims 1 and 2, characterized by an aspect ratio of about 3.5, smooth profile, and angled edges on the left and right sides to provide good wave suppression.

4. A catamaran tunnel planing boat in the form of a composite hull according to claims 1 and 2, characterised in that the bow monohull structure is a high speed planing boat in the form of a ragged bow, the stern angle of the monohull planing boat structure is 31 degrees, and the monohull structure is broken at the stern without a transition.

5. A catamaran canoe planing boat in the form of a composite hull according to claims 1 and 2, characterized in that the catamaran structure of the stern is a high speed catamaran hull with a pronounced planing surface, the stern cant angle of the hull structure is 20 degrees, the inside of the catamaran is designed in the form of double-cornered edges, and the wet deck height is 1.85 meters.

6. A catamaran planing boat in the form of a composite hull according to claims 1 and 2, characterised in that the main unit and the propulsion system are arranged directly inside the catamaran, the propulsion system being either of the waterjet or surface paddle type.

Background

The single planing boat with the split-wave bow structure is a novel high-performance boat type appearing in recent years, the length below a bow waterline of the single deep V-shaped planing boat with good wave resistance is properly increased under the condition that the width of the boat is not changed, the length-width ratio of the boat is increased, and the rapid performance of the planing boat is improved. Meanwhile, the stem of the ship is modified into a boat-shaped structure with a split-wave form, namely, the stem is changed into a vertical form from a backward tilting form, so that the vertical wave force borne by the stem in the waves is smaller, and the method has an obvious effect on improving the wave resistance of the ship in the waves.

The catamaran high-speed planing boat is also a high-performance boat type developed in recent years, and each lamellar structure of the catamaran high-speed planing boat has an excellent planing wall surface, so that the catamaran high-speed planing boat easily crosses a resistance peak value to enter a stable planing state in a high-speed state and has smaller wave-making resistance after entering the high-speed planing state. The catamaran high-speed planing boat has a large deck area and a large cabin volume, has good loading performance and excellent transportation efficiency, and more importantly, has a larger width than a monohull boat, has good stability and can bear larger wind waves. The double-body high-speed planing boat has the advantages that the propulsion systems can be arranged in the left and right sheet bodies, so that the double-body high-speed planing boat has better control performance and can meet the installation requirements of different propulsion systems.

The single hull planing boat has obvious wave making in the high-speed sailing stage, the resistance and wave force borne by the single hull planing boat at high speed are large, the composite twin hull high-speed boat fully utilizes the hydrodynamic characteristic and aerodynamic characteristic of the twin hull planing boat by fusing the characteristics of the twin hull planing boat on the basis of the high-speed split wave type single hull planing boat, and the wave making resistance can be obviously reduced in the high-speed sailing process, so that the fast performance and the wave resistance are improved, and the internal space arrangement is well improved.

Disclosure of Invention

The purpose of the invention is: the composite catamaran planing boat type has good rapid performance and wave resistance and has a large deck area.

The technical scheme adopted by the invention is as follows: a twin-hull channel planing boat in a composite hull form comprises a high-speed single planing boat structure with a split-wave bow form at the front part and a high-speed twin-hull planing boat type with a good planing wall surface at the rear part; the front single planing boat type is provided with a stem in a vertical form, the single planing boat structure is stably transited to the twin planing boat structure, the two single planing boat types are not connected, the twin planing boat type is in a sheet body form in bilateral symmetry, and the twin planing boat type comprises a connecting bridge arranged between the sheet bodies and a folding edge used for wave pressing.

As a preferable technical scheme, the fore single high-speed boat-shaped structure stem at the front part is of a vertical structure, chamfering processing is carried out at the connection part of the base line of the boat body, the molded line at the bottom of the boat body has a certain angle with the base line, and the angle is 0-5 degrees.

Preferably, the aspect ratio of the hull is about 3.5, and the hull deck volume usage area is concentrated at the catamaran deck.

Preferably, the ratio of the single hull planing boat type structure is about 40% of the front half part of the hull, and the ratio of the catamaran type structure is about 60% of the rear half part of the hull.

As a preferable technical scheme, the single planing boat type structure and the catamaran type structure are in smooth transition at a position 67% away from the tail edge plate, and then the boat body occupies the main displacement volume by the catamaran.

As a preferable technical scheme, the catamaran type adopts a V-shaped structure, has a good low-resistance linear shape, a large length-width ratio and a streamline shape, has a wide gliding wall surface, and ensures that the ship body has good peak-crossing performance.

As a preferable technical scheme, the ratio of the width of the twin-hull planing boat body to the width of the twin-hull planing boat body is about 0.32, so that a high-power high-rotating-speed built-in engine can be arranged.

As a preferred technical scheme, the height of a wet deck at the connecting bridge of the twin-hull planing boat is 1.85 m, so that the ratio of the draught height to the wet deck height is about 0.5, and the depth of the channel meets the use requirement under severe sea conditions.

The invention has the beneficial effects that:

the invention provides a twin-body channel planing boat in a composite hull form, which has the advantages of split wave type single planing boat and high-speed twin-body planing boat, improves wave penetrating, wave making and loading performances, can be suitable for various sea conditions, and is especially suitable for offshore tasks such as high-speed interception, high-speed patrol and the like; the ship shape effectively improves the peak-crossing performance of the twin-hull planing boat, is easier to enter a stable planing state, and has good longitudinal stability; the hydrodynamic lift force and the channel aerodynamic lift force of the catamaran slide boat have a dominant effect at high speed, so that the wave making and splashing of the catamaran can be effectively reduced, and the seaworthiness under severe sea conditions is improved; as a ship form having a wide and large sheet structure and a deep channel form, the ship can satisfy the needs of various power system and propulsion system arrangements, so that the ship form has a good practical value.

Drawings

FIG. 1 is a three-dimensional schematic view of a catamaran channel planing boat in the form of a composite hull

FIG. 2 is a side view of a twin-hull channel planing boat in the form of a composite hull

FIG. 3 is a bottom view of a catamaran channel planing boat in the form of a composite hull

FIG. 4 is a front view of a twin channel planing boat in the form of a composite hull

FIG. 5 is a aft view of a twin hull channel planing boat in the form of a composite hull

Wherein: the structure comprises a vertical stem 1, a single planing boat 2, a streamline angle folding edge 3, a double planing boat 4, a sheet 5, a stern 6, a double planing boat channel 7, and a single planing boat structure and double planing boat structure cross part 8.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments, but the present invention is not limited to the embodiments, and all other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments of the present invention belong to the protection scope of the present invention, so that any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention.

The invention provides a twin-hull channel planing boat in a composite hull form, which comprises a single planing boat structure 2 with a wave splitting stem characteristic 1 at the front part and a twin-hull planing boat structure 4 with a good planing wall surface at the rear part, wherein the twin-hull planing boat is provided with sheet structures 5 which are symmetrically arranged from left to right and a deep channel 7 between the two sheet structures; a kind of catamaran channel hydroplane with form of compound hull, its whole appearance is streamline, have dog-ear edge 3 which link up the whole ship, wherein the monomer hydroplane type of fore uses the deep V-boat type, its bottom lead angle of stern is 31 degrees, the bottom lead angle increases from monomer boat stern to bow, approach 90 degrees in bow, make it have good wave-penetrating effect; the catamaran type at the rear part also adopts a positive V-shaped structure form, wherein the bottom lift angle at the stern part of the catamaran is 20 degrees; the stern part of the single planing boat and the bow part of the twin planing boat are intersected in the range of 60-70% of the distance from the tail edge plate, and part of the single boat structure extends into the channel of the twin boat, so that high-speed water flow can stably cross the joint part of the single and twin structures; the internal structure of the blade body of the double-body skimming boat adopts a deep channel form, so that the internal wave making of the blade body within the full speed range can not cause the change of the longitudinal posture of a ship body due to the contact with a wet deck, the wave making and the splashing inside the blade body are obviously improved by the double-folding-angle edge design at the inner side of the blade body, the ship body can indirectly obtain partial hydrodynamic lift force, and the auxiliary ship body can reach a higher upper speed limit.

The total length-width ratio of the planing boat provided by the invention reaches about 3.5, the total deck area and cabin volume are larger than those of a single planing boat and a double-body planing boat, and the effective deck area and cabin volume are mainly concentrated on the deck of the double-body planing boat at the stern of the boat body, so that passengers have better riding experience and better comfort.

The planing boat provided by the invention has an obvious wave-penetrating effect in a low-speed stage and good wave-resisting performance, and because the front single planing boat type adopts a vertical stem structure, compared with a backward-inclined planing boat, the length-width ratio is increased, the rapid performance and the peak-crossing performance are improved, the peak-crossing time is shortened, and the boat enters a stable planing state more quickly.

In the high-speed gliding process of the gliding boat, the bow part of the boat body is separated from the water surface, the sailing performance of the gliding boat is more like that of a catamaran, the impulse is smaller relative to a monohull, and the longitudinal stability and the lateral stability of the boat body are obviously improved. In the process of high-speed sliding, high-speed water flows pass through the combination part of the ship body 1 and the sheet body 5, the high-speed water flows enter the channel of the left and right symmetrical sheet bodies and are subjected to the wave pressing action of the inside corner edges and the transition sections of the sheet bodies, the wave making and splashing inside the sheet bodies are smaller, the wave making resistance inside the sheet bodies is smaller, and the ship performance is further improved.

The catamaran type keel structure of the hydroplane has a certain depth, can be inserted into water in the high-speed sailing process, can stabilize a flow field in a channel on one hand, and can improve the course maintaining capacity of the hydroplane on the other hand, so that the hydroplane has good operation performance under severe sea conditions; the planing boat has good wave-penetrating performance, can be suitable for various sea conditions, can be applied to various offshore operation tasks such as high-speed patrol, high-speed interception, offshore rescue and the like, has certain stealth characteristics due to small wave making and splashing, and can be suitable for offshore high-speed assault operation tasks.