CN102826196A - Sliding hydrofoil boat for preventing sliding surface from splashing - Google Patents

Abstract

The invention discloses a wing skid boat with anti-splash on the skid surface, which comprises a hull, a propulsion device and a cutting hydrofoil, and the bottom surface of the stern of the hull constitutes the skid surface. The two sides of the hull extend laterally and symmetrically from the bilge part of the midship to the stern of the boat, and the short wing-shaped sheets extend longitudinally and downward to the stern of the boat. The hull gradually transitions from the deep V-shaped cross-section at the bow to the cross-section of the stern planing surface as an improved shallow V-shaped bottom or a horizontal bottom. The shape of the hydrofoil body includes shallow V-shaped cutting hydrofoil, deep-immersion horizontal cutting hydrofoil, trapezoidal cutting hydrofoil and stepped shallow V-shaped cutting hydrofoil, several kinds of stern sliding surfaces and several kinds of hydrofoil bodies are combined in pairs It has become a multi-wing boat type. The present invention preferably overcomes the inherent shortcomings of the aforementioned planing boats or hydrofoil boats, such as large vibration and poor navigation stability, and also overcomes the inflexibility of the arrangement and design of the planing boats. The short wing-shaped body can effectively simulate the side splash of the sliding surface when sailing at high speed.

Description

Anti-planing surface splash wing skid

technical field

The invention relates to a high-performance ship, in particular to a wing-skid boat with the functions of a planing boat and a hydrofoil boat and an anti-splash function on a sliding surface, and belongs to the technical field of high-performance ships.

Background technique

Planing boats and hydrofoil boats are important members of the family of high-performance boats. A planing boat that glides on the water at high speed relies on hydrodynamic force to support most of its weight, and water buoyancy only supports a small part of the weight of the planing boat. Compared with conventional displacement ships, its advantage is fast speed, and its disadvantages are large vibration, severe impact, poor course stability, and strict weight distribution requirements. This shortcoming seriously limits the weight arrangement of the boat. When the planing boat or hydrofoil sails at high speed, the splash is large, which consumes part of the power of the main engine and affects its economy. When the hydrofoil boat sails at high speed on the water surface, it relies on the water lift generated by the hydrofoil to completely lift the hull out of the water. Under the same displacement and propulsion power, its speed is more than 15% higher than that of the planing boat. It overcomes many shortcomings of the planing boat. , but it has a large stall in waves, and the propulsion device is relatively complicated and expensive.

Contents of the invention

The object of the present invention is to provide a wing skid boat with anti-skid surface splash taking into account the advantages of planing boat and hydrofoil boat.

The present invention is achieved through the following technical solutions:

A wing skid boat with anti-planing surface splashing, comprising a hull, a propulsion device and a cutting hydrofoil arranged at the front of the hull, the cutting hydrofoil includes a horizontal hydrofoil body and several symmetrically arranged pillars , the hydrofoil body is fixedly connected to both sides of the hull through several pillars, and the bottom surface of the stern of the hull constitutes the sliding surface; the two sides of the hull extend laterally and symmetrically from the bilge of the midship to the obliquely downward side of the stern. The short wing-shaped body extends downwardly and downwardly to the stern of the boat; the hull gradually transitions from the deep V-shaped cross-section with acute angles on both sides of the bow to the stern to the cross-section of the stern planing surface as an improved shallow V-shaped cross-section. Bottom or horizontal bottom; hydrofoil body shape includes shallow V-shaped cutting hydrofoil, deep-immersion horizontal cutting hydrofoil, trapezoidal cutting hydrofoil and stepped shallow V-shaped cutting hydrofoil, several kinds of stern planing surface and Two groups of several hydrofoil bodies form a variety of wing skid boats.

The object of the present invention can also be further realized by the following technical measures:

In the aforementioned anti-skid surface splash skid boat, the cross-section of the short airfoil body is a part of a triangle or an arc. The angle α between the longitudinal centerline of the short wing-shaped sheet and the horizontal plane is -1° to 2°, and the angle β between the transverse centerline of the short wing-shaped sheet and the horizontal plane is 5° to 30°.

In the anti-planing surface splash skid boat mentioned above, the cross section of the hydrofoil body is bow-shaped or crescent-shaped with small camber. The crown ratio of the arcuate cross-section cutting hydrofoil is not less than 0.025, and the span ratio is greater than or equal to 7. The camber ratio of the small-camber crescent-shaped cross-section cutting hydrofoil is not less than 0.035, and the span-length ratio is greater than or equal to 7.

The present invention is a new type of composite boat between planing boats and hydrofoil boats, which overcomes the inherent shortcomings of planing boats or hydrofoil boats such as large vibration and poor navigation stability. In order to cut and draw the hydrofoil, the present invention can bear part of the weight of the hull when sailing at high speed, and when gliding at high speed, the improved shallow V-shaped or approximately horizontal sliding surface and the cut and drawn hydrofoil support more than 45% of the weight of the hull. The present invention overcomes the inflexibility of planing boat layout design. The rear bilge part of the midship protrudes obliquely downward with a short wing-shaped sheet, which can effectively control the lateral splash of the sliding surface when sailing at high speed. Its comprehensive technical and economic performance is superior to planing boats, conventional wing skid boats and hydrofoil boats. The rapidity of this type of wing skid has improved more than 15% than that of the skid boat. Both slam and directional stability are vastly improved over planing boats.

The invention, with advantages and characteristics, will be illustrated and explained by the following non-limiting description of preferred embodiments, given by way of example only with reference to the accompanying drawings.

Description of drawings

Fig. 1 is a side view of the present invention;

Fig. 2 is the right view of Fig. 1;

Fig. 3 is the A-A sectional view of Fig. 1,

Fig. 4 is the B-B sectional view of the deeply submerged horizontal hydrofoil of Fig. 1;

Fig. 5 is the B-B sectional view of the trapezoidal cutting hydrofoil of Fig. 1;

Fig. 6 is the B-B cross-sectional view of the stepped shallow V-shaped cutting hydrofoil of Fig. 1;

Fig. 7 is a C-C sectional view of Fig. 1;

Fig. 8 is a D-D sectional view of the arcuate section of the hydrofoil body of Fig. 2;

Fig. 9 is a D-D cross-sectional view of the small-camber crescent-shaped hydrofoil body section in Fig. 2 .

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Fig. 1 and Fig. 2, the present invention includes a hull 1, a propulsion device 2 and a cutting hydrofoil 3 arranged at the front of the hull, and the propulsion device 2 is arranged as follows for hulls 1 of different scales: the hull 1 When the length is less than 8-9 meters, the propulsion device 2 adopts an outboard motor; when the length of the hull 1 is more than 8-9 meters, an inboard motor full cavitation propeller or an outboard motor full cavitation propeller is used; the hull length is 15 When it is more than one meter, in addition to using the above two devices for propulsion, a landline full-cavitation propeller can also be used.

The cutting hydrofoil 3 includes a horizontal hydrofoil body 31 and several symmetrically arranged pillars 32. The hydrofoil body 31 is fixedly connected to both sides of the hull 1 through several pillars 32, and the bottom surface of the stern of the hull 1 constitutes a sliding surface. .

As shown in Fig. 1 and Fig. 7, the two sides of the hull 1 extend laterally and symmetrically from the bilge part of the midship (the junction between both sides of the hull and the bottom of the boat) to the obliquely downward direction of the stern of the boat. The short airfoil body 11 is inclined longitudinally and extends to the stern of the boat. The cross section of the short airfoil body 11 is a part of a triangle or an arc. The included angle α between the longitudinal centerline of the short wing-shaped sheet body 11 and the horizontal plane is -1°-2°, and the included angle β between the transverse centerline of the short-wing-shaped sheet body 11 and the horizontal plane is 5°-30°.

As shown in Figure 2, the hull 1 gradually transitions from the deep V-shaped cross-section with acute angles on both sides of the bow to the stern direction to the cross-section of the stern planing surface as an improved shallow V-shaped bottom or a horizontal bottom. The structure of the improved shallow V-shaped boat bottom is simple, and the lift-drag is higher than that of the conventional V-shaped and round bilge in the taxiing state, and it has better heading stability. Level: The hull structure is simple, the force is uniform, and the workmanship is good, which is beneficial to the overall economy; the sliding efficiency is higher than that of the conventional V-shaped and round bilge.

Figure 8 and Figure 9 are the D-D sectional view of the arcuate section hydrofoil 31 and the D-D sectional view of the small camber crescent-shaped hydrofoil section respectively.

As shown in Figure 2 and Figures 4 to 6, the shape of the hydrofoil body 31 includes shallow V-shaped cutting hydrofoils, deep-immersion horizontal cutting hydrofoils, trapezoidal cutting hydrofoils and stepped shallow V-shaped cutting hydrofoils. Two kinds of planing surfaces with V-shaped bottom or horizontal bottom and four types of hydrofoil bodies: shallow V-shaped cutting hydrofoil, deep-immersion horizontal cutting hydrofoil, trapezoidal cutting hydrofoil and stepped shallow V-shaped cutting hydrofoil The two groups are combined into the following eight types of wing skid boats: (1) The combination of the improved shallow V-shaped stern sliding surface and the shallow V-shaped cutting hydrofoil. (2) Combination of improved shallow V-shaped stern sliding surface and deep-immersed horizontal cutting hydrofoil. (3) Combination of improved shallow V-shaped stern sliding surface and trapezoidal cutting hydrofoil. (4) Combination of improved shallow V-shaped stern sliding surface and stepped shallow V-shaped cutting hydrofoil. (5) Combination of horizontal stern planing surface and shallow V-shaped cutting hydrofoil. (6) Combination of horizontal stern sliding surface and deep-immersed horizontal cutting hydrofoil. (7) Combination of horizontal stern sliding surface and trapezoidal cutting hydrofoil. (8) Combination of horizontal stern planing surface and stepped shallow V-shaped cutting hydrofoil. The above eight combinations can be selected according to actual needs, all of which have good anti-skid surface splash effects.

In addition to the above-mentioned embodiments, the present invention can also have other implementations, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims (6)

1. gliding-hydrofoil craft that anti-planing surface splashes; Comprise hull, propelling unit and be arranged on hull anterior cut the wing of striking; The said wing of striking that cuts comprises horizontal hydrofoil body and several symmetrically arranged pillar; The hydrofoil body is captiveed joint with the hull both sides through several pillars, and hull stern bottom surface constitutes planing surface; It is characterized in that the hull both sides are extended short limb shape lamellar body from the ship midship turn of the bilge to the oblique below of ship stern lateral symmetry, said short limb shape lamellar body longitudinally has a down dip and extends to the ship stern; Hull from acutangulate dark V-type bench section, bow both sides at the bottom of bench section that the stern direction carries out the transition to the stern planing surface gradually is for the shallow V-type ship of improvement or at the bottom of the horizontal type ship; The hydrofoil shape comprises that dark immersion is flat and cuts that the wing of striking, shallow V-arrangement cut the wing of striking, trapezoidal the strike wing and the shallow V-arrangement of ladder of cutting cuts the wing of striking that several stern planing surfaces are combined into multiple gliding-hydrofoil craft ship type in twos with several hydrofoil bodies.

2. the gliding-hydrofoil craft that anti-planing surface as claimed in claim 1 splashes is characterized in that, the bench section of said short limb shape lamellar body is a triangle or an arc part.

3. the gliding-hydrofoil craft that splashes of according to claim 1 or claim 2 anti-planing surface is characterized in that said short limb shape lamellar body longitudinal centerline and horizontal plane angle α are-1 °～2 °, and short limb shape lamellar body cross central line and horizontal plane angle β are 5 °～30 °.

4. the gliding-hydrofoil craft that anti-planing surface as claimed in claim 1 splashes is characterized in that, the bench section of said hydrofoil body is arc or little camber crescent.

5. the gliding-hydrofoil craft that splashes according to claim 1 or 4 described anti-planing surfaces is characterized in that the camber ratio that the wing of striking is cut in said arc bench section is not less than 0.025, and exhibition is long than equaling 7 greatly.

6. the gliding-hydrofoil craft that splashes according to claim 1 or 4 described anti-planing surfaces is characterized in that the camber ratio that the wing of striking is cut in said little camber crescent bench section is not less than 0.035, and exhibition is long than equaling 7 greatly.

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