CN116477037A - A wave energy vehicle with adaptive hydrofoil angle of attack - Google Patents

Abstract

The utility model relates to a wave energy aircraft with self-adaptive hydrofoil attack angle, wherein the front end of a front hydrofoil is hinged with the bottom of a ship body through a first connecting piece, and the rear end of the front hydrofoil is hinged with one end of a first transmission part; the first transmission part is hinged on the ship body through a first supporting part, and the other end of the first transmission part extends to the outside of the bow of the ship body and is connected with the front buoyancy ball; the front end of the rear hydrofoil is hinged with the bottom of the ship body through a second connecting piece, and the rear end of the rear hydrofoil is hinged with one end of a second transmission part; the second transmission part is hinged on the ship body through a second supporting part, and the other end of the second transmission part extends to the outside of the stern of the ship body and is connected with the rear buoyancy ball. The utility model utilizes the fluctuation of waves to cause the vertical movement of the corresponding buoyancy ball, and further transmits the vertical movement to the corresponding hydrofoil through the corresponding transmission part, thereby realizing the control of the attack angle of the hydrofoil, and the utility model can navigate by utilizing wave energy with high efficiency, and belongs to the technical field of ship equipment.

Description

A wave energy vehicle with adaptive hydrofoil angle of attack

technical field

The invention relates to the technical field of ship equipment, in particular to a wave energy vehicle with adaptive hydrofoil angle of attack.

Background technique

Surface vehicles have important application value in ocean survey, ocean three-dimensional observation network networking, communication relay, etc. Due to the small displacement of the aircraft, the energy supply restricts its voyage and flight time. The wind, waves, currents and other environments on the sea surface contain a lot of energy. If the wave energy is used to drive the surface aircraft, the maneuvering range and maneuvering time of the aircraft will be greatly expanded. The traditional way that the hull is towed by the umbilical cable to drag the hydrofoil is not high in wave energy utilization and the speed is slow.

Such as the existing patent CN110040230A, the name is: a kind of ocean vehicle that converts wave energy into low-frequency pitching motion to realize propulsion, which includes a wave energy absorbing device, a wave energy storage device, a wave energy conversion hydrofoil and an equipment cabin. The storage device is used to store the wave energy absorbed by the wave energy absorbing device, the wave energy conversion hydrofoil is used to convert the wave energy stored in the wave energy storage device and the wave energy absorbed by the wave energy absorbing device into navigation power, and the equipment compartment is used to load ocean monitoring tools. The solution of this existing patent is mainly used for marine monitoring tools. During its use, when the ocean vehicle that converts wave energy into low-frequency pitch motion to achieve periodic pitch motion occurs, the bionic hydrofoil synchronously generates periodic pitch motion, forming a movement similar to the tail fin swinging along the vertical direction when a dolphin swims, thereby generating thrust perpendicular to the swing direction (thrust along the direction of wave motion) to provide forward propulsion for the ocean vehicle; however, the solution of this patent has the problem of low conversion efficiency. The hydrofoil is installed on the stern of the equipment cabin, and the wave energy absorbing device is mainly used to provide the hydrofoil through the wave energy storage device to realize the drive. The process efficiency of this indirect conversion is low, and the single conversion to the hydrofoil installed on the stern of the equipment cabin has poor power and cannot be used for larger equipment or ships.

Such as the existing patent CN208198727U, the name is a kind of unmanned ship that utilizes wave propulsion. It includes the hull and the steering rudder assembly. A rigid connecting rod vertically fixed to the bow and stern of the hull is respectively provided. A hydrofoil driving device is arranged at the lower end of the rigid connecting rod. Seat connection, the rotary shaft is located in front of the limit swing rod, the limit swing rod and the rotary shaft are fixedly connected to the hydrofoil, the rotary shaft is axially fixed and circumferentially rotatably connected to the fixed seat, and the fixed seat is provided with an arc-shaped limit hole adapted to the movement track of the limit swing rod, and the limit swing rod is worn in the arc-shaped limit hole of the fixed seat. The utility model can directly convert the surge, roll and pitch motions of the hull under the action of waves into the forward propulsion of the hydrofoil, and has high wave energy conversion efficiency. Although the scheme of this patent realizes the direct conversion of wave energy into kinetic energy, it can be seen from the figure that the hydrofoil is located below the water surface, and the forward propulsion of the hydrofoil is directly converted into the forward propulsion of the hydrofoil by the surge, roll and pitch motion of the hull.

Contents of the invention

Aiming at the technical problems existing in the prior art, the object of the present invention is to provide a wave energy aircraft with self-adaptive hydrofoil angle of attack, which solves the problem of low conversion efficiency of existing aircraft conversion wave energy structures.

In order to achieve the above object, the present invention adopts following technical scheme:

A wave energy vehicle with adaptive hydrofoil angle of attack, comprising a hull, a front hydrofoil, a rear hydrofoil, a front buoyancy ball, a rear buoyancy ball, a first transmission part and a second transmission part, the front end of the front hydrofoil is hinged to the bottom of the hull through a first connecting piece, the rear end of the front hydrofoil is hinged to one end of the first transmission part; the first transmission part is hinged on the hull through a first support part, and the other end of the first transmission part extends to the outside of the bow of the hull and is connected to the front buoyancy ball; the front end of the rear hydrofoil is connected to the bottom of the hull through The second connecting part is hinged, and the rear end of the rear hydrofoil is hinged with one end of the second transmission part; the second transmission part is hinged on the hull through the second supporting part, and the other end of the second transmission part extends to the stern of the hull and is connected with the rear buoyancy ball; the front hydrofoil is located at the bottom of the bow of the hull, and the rear hydrofoil is located at the bottom of the stern of the hull.

As a kind of preference, the first transmission component comprises the first tension and compression rod, the first transmission rod and the first floating and sinking rod, the hull is provided with the first tube hole through the hull, the first transmission rod is hinged on the hull by the first support member, the front end of the first transmission rod extends to the bow of the hull, one end of the first floating and sinking rod is fixedly connected with the front end of the first transmission rod, the other end of the first floating and sinking rod is fixedly connected with the front buoyancy ball; one end of the first tension and compression rod is hinged with the rear end of the first transmission rod, and the other end of the first tension and compression rod passes through the top of the hull The first pipe hole extends to the bottom of the hull, and the other end of the first tension and compression rod is hinged to the rear end of the front hydrofoil.

As a kind of preference, the second transmission part comprises the second pulling and pressing rod, the second driving rod and the second buoyancy rod, the hull is provided with the second pipe hole that runs through the hull, the second driving rod is hinged on the hull by the second support member, the rear end of the second driving rod extends to the stern of the hull, one end of the second floating rod is hinged with the rear end of the second driving rod, the other end of the second floating rod is fixedly connected with the rear buoyancy ball; Extend to the bottom of the hull through the second pipe hole, and the other end of the second tension and compression rod is hinged to the rear end of the rear hydrofoil.

As a kind of preference, the first connecting member is a rod, the rod adopted by the first connecting member is the first connecting rod, the first connecting rod is vertically arranged, the top of the first connecting rod is fixedly connected with the bottom of the hull, and the bottom end of the first connecting rod is hinged with the front end of the front hydrofoil.

Preferably, the second connecting member is a rod, and the rod used by the second connecting member is a second connecting rod, the second connecting rod is vertically arranged, the top of the second connecting rod is fixedly connected to the bottom of the hull, the bottom end of the second connecting rod is hinged with the front end of the rear hydrofoil, and the bottom plane of the second connecting rod is on the same level as the bottom plane of the first connecting rod.

Preferably, the first support member is a first support rod, the first support rod is vertically arranged, the bottom end of the first support rod is fixed on the bow of the hull, and the top end of the first support rod is hinged to the first transmission rod.

Preferably, the second support member is a second support rod, the second support rod is vertically arranged, the bottom end of the second support rod is fixed at the stern of the hull, and the top end of the second support rod is hinged to the second transmission rod.

As a preference, the two ends of the front hydrofoil and the rear hydrofoil protrude along the width direction of the hull.

Invention principle: The ups and downs of the waves cause the vertical movement of the buoyancy ball, which is then transmitted to the connecting rod through the lever to realize the control of the angle of attack of the hydrofoil. The buoyancy ball moves with the undulations of the waves, the hull moves with the waves and there is a certain movement phase difference, and the hull generally lags behind the movement of the buoyancy ball. As the hull moves upwards, the buoyancy balls respond faster, deflecting the hydrofoil downwards, creating a favorable angle of attack control and generating forward thrust. When the hull moves downwards, the floating ball responds quickly and controls the upward deflection of the hydrofoil to generate a favorable angle of attack and forward thrust. The adaptive control of the angle of attack of the hydrofoil of the wave energy vehicle is realized by using the motion of the buoyancy ball, which can effectively utilize the wave energy.

Generally speaking, the present invention has following advantages:

1. The present invention utilizes the buoyancy ball to absorb the wave energy, and through the transmission part and the support part (that is, the lever principle), the wave energy is directly converted into kinetic energy and transmitted to the hydrofoil for swinging, thereby promoting the movement of the hull. Compared with the structure of the prior art wave energy conversion kinetic energy, the conversion method of the present invention is direct conversion, and is directly transmitted to the hydrofoil. The conversion efficiency is high, the utilization efficiency of wave energy is improved, and the performance of the wave energy vehicle is improved.

2. Compared with marine observation ships, high-altitude remote sensing, unmanned boats, and unmanned aerial vehicles, the present invention has low research and development costs, low maintenance and management costs, and is economical and applicable; compared with buoys and submersible buoys, it can carry more observation equipment, have a wider range of activities, and record more data; compared with existing wave energy vehicles, it can use wave energy better and more efficiently. Moreover, the present invention has a simple structure, is easy to process, produce and develop, and can be widely used in fields such as scientific research and investigation.

Description of drawings

Fig. 1 is a front view of a wave energy vehicle with adaptive hydrofoil angle of attack.

Fig. 2 is a top view of a wave energy vehicle with adaptive hydrofoil angle of attack.

Fig. 3 is a dynamic principle analysis diagram of the upward movement of a wave energy vehicle adaptive to the angle of attack of the hydrofoil;

Fig. 4 is an analysis diagram of the dynamic principle of a wave-energy vehicle with self-adaptive hydrofoil angle of attack.

Among them, 1 hull, 2 front hydrofoils, 3 rear hydrofoils, 4 front buoyancy balls, 5 rear buoyancy balls, 6 first tension and compression rods, 7 first transmission rods, 8 first floating and sinking rods, 9 second tension and compression rods, 10 second transmission rods, 11 second floating and sinking rods, 12 first connecting rods, 13 second connecting rods, 14 first supporting rods, and 15 second supporting rods.

Detailed ways

The present invention will be described in further detail below in conjunction with specific embodiments.

As shown in Figure 1, a kind of hydrofoil angle-of-attack self-adaptive wave energy vehicle provided by this embodiment comprises a hull 1, a front hydrofoil 2, a rear hydrofoil 3, a front buoyancy ball 4, a rear buoyancy ball 5, a first transmission part and a second transmission part, the front end of the front hydrofoil is hinged to the bottom of the hull through a first connector, and the rear end of the front hydrofoil is hinged to one end of the first transmission part; The ball is connected; the front end of the rear hydrofoil and the bottom of the hull are hinged by the second connector, and the rear end of the rear hydrofoil is hinged with one end of the second transmission part; the second transmission part is hinged on the hull through the second support part, and the other end of the second transmission part extends to the outside of the stern of the hull and is connected with the rear buoyancy ball; the front hydrofoil is located at the bottom of the bow of the hull, and the rear hydrofoil is located at the bottom of the stern of the hull.

In this embodiment, the front buoyancy ball 4 and the rear buoyancy ball 5 can be commonly used sea buoyancy balls, which have anti-corrosion, anti-freeze, anti-oxidation, and anti-purification line strengthening materials, and are not eroded by sea water, chemicals, medicines, oil stains, and aquatic organisms; they have strong bearing capacity, stable and durable cylinders, and different buoyancy bodies can provide different buoyancy. The buoyancy ball has the characteristics of large volume and low density. The undulation of the wave causes the vertical movement of the buoyancy ball, which is then transmitted through the buoyancy rod (the first buoyancy rod and the second buoyancy rod)-transmission rod-tension and pressure rod.

The front hydrofoil 2 and the rear hydrofoil 3 are commonly used hydrofoils on existing ships, and the hull is an existing conventional ship.

The first transmission part comprises the first tension and compression rod 6, the first transmission rod 7 and the first floating and sinking rod 8, the hull is provided with the first tube hole that runs through the hull, the first transmission rod is hinged on the hull by the first support member, the front end of the first transmission rod extends to the bow of the hull, one end of the first floating and sinking rod is fixedly connected with the front end of the first transmission rod, the other end of the first floating and sinking rod is fixedly connected with the front buoyancy ball; The pipe hole extends to the bottom of the hull, and the other end of the first tension and compression rod is hinged to the rear end of the front hydrofoil.

The second transmission part comprises the second pulling and pressing rod 9, the second driving rod 10 and the second floating and sinking rod 11. The hull is provided with the second pipe hole that runs through the hull. The top extends to the bottom of the hull through the second pipe hole, and the other end of the second tension and compression rod is hinged to the rear end of the rear hydrofoil.

The hull is provided with through pipe holes (the first pipe hole and the second pipe hole), and the tension and compression rods (the first tension and compression rods and the second tension and compression rods) control the rotation of the hydrofoil through the pipe holes. The transmission rods (the first transmission rod and the second transmission rod) are connected with the buoyancy balls (the front buoyancy ball and the rear buoyancy ball) in a lever manner. The ups and downs of the waves cause the vertical movement of the buoyancy ball, and then through the transmission of the buoyancy rod (the first buoyancy rod and the second buoyancy rod)-transmission rod-tension and pressure rod, the control of the angle of attack of the hydrofoil is realized. The buoyancy ball moves with the undulations of the waves, the hull moves with the waves and there is a certain movement phase difference, and the hull generally lags behind the movement of the buoyancy ball. As the hull moves upwards, the buoyancy balls respond faster, deflecting the hydrofoil downwards, creating a favorable angle of attack control and generating forward thrust. When the hull moves downwards, the floating ball responds quickly and controls the upward deflection of the hydrofoil to generate a favorable angle of attack and forward thrust. In this embodiment, the first transmission part and the second transmission part, the front hydrofoil and the rear hydrofoil, the front buoyancy ball and the rear buoyancy ball, the first support part and the second support part are substantially the same structure, and are divided for the convenience of distinction.

The first pipe hole and the second pipe hole in this embodiment are through holes from the bottom to the top of the hull. First, a through hole is provided in the hull, and then a pipe is fitted to the through hole. The outer edge of the pipe and the inner edge of the through hole are water-sealed, so that the tension and compression rod is inserted into the pipe to connect with the hydrofoil, and the tension and compression rod slides relative to the pipe hole. The section of this pipe can be rectangular or elliptical, and it needs to be designed to avoid collision with the tension and compression rods.

The first connecting member is a rod, and the rod used by the first connecting member is the first connecting rod 12, the first connecting rod is vertically arranged, the top of the first connecting rod is fixedly connected with the bottom of the hull, and the bottom end of the first connecting rod is hinged with the front end of the front hydrofoil. In this embodiment, the connection between the first connecting rod and the front hydrofoil is a quarter from the front to the rear of the front hydrofoil, so that the amplitude of the swing and the force of the front hydrofoil are more reasonable, and it is convenient to cooperate with the first transmission rod to transfer kinetic energy and improve the conversion efficiency.

The second connecting member is a rod, and the rod used by the second connecting member is the second connecting rod 13, the second connecting rod is vertically arranged, the top of the second connecting rod is fixedly connected to the bottom of the hull, the bottom end of the second connecting rod is hinged with the front end of the rear hydrofoil, and the bottom plane of the second connecting rod is on the same level as the bottom plane of the first connecting rod. In this embodiment, the connection between the second connecting rod and the rear hydrofoil is a quarter from the front to the rear of the rear hydrofoil, so that the swing range and force of the rear hydrofoil are more reasonable, and it is convenient to cooperate with the second transmission rod to transfer kinetic energy and improve conversion efficiency.

The first support part is the first support rod 14, the first support rod is vertically arranged, the bottom end of the first support rod is fixed on the bow of the hull, and the top of the first support rod is hinged with the first transmission rod. In this embodiment, the first support rod is a round rod made of stainless steel. The top of the first support rod is provided with a through hole, through which a rotating shaft is connected, and the first transmission rod is provided with a through hole. In this embodiment, the connection between the first support rod and the first transmission rod is one-third of the length direction of the first transmission rod, one-third of the first transmission rod is located above the hull, and two-thirds of the first transmission rod extends out of the hull, thereby improving the conversion efficiency of wave energy.

The second support part is the second support rod 15, and the second support rod is vertically arranged, and the bottom end of the second support rod is fixed on the stern of the hull, and the top of the second support rod is hinged with the second transmission rod. The second support rod of the present embodiment is a round rod made of stainless steel material. The top of the second support rod is provided with a through hole, through which a rotating shaft is connected, and the second transmission rod is provided with a through hole.

In this embodiment, the connection between the second support rod and the second transmission rod is one-third of the length direction of the second transmission rod, one-third of the second transmission rod is located above the hull, and two-thirds of the second transmission rod extends out of the hull, thereby improving the conversion efficiency of wave energy.

As shown in Figure 2, the two ends of the front hydrofoil and the rear hydrofoil protrude along the width direction of the hull. When the wave comes, the buoyancy ball responds faster than the hydrofoil, controls the deflection of the hydrofoil, forms a favorable angle of attack control, and generates forward thrust. The hydrofoil here refers to the front hydrofoil and the rear hydrofoil, both of which move synchronously.

Various types of equipment for monitoring the marine environment are installed on the aircraft to realize its functions; motor control systems, GPS positioning systems and signal receiving devices are installed to allow personnel on the shore to know and manipulate the status of the aircraft at any time and receive various monitored data.

Solar panels can also be installed on the aircraft to power the propulsion device together with the battery to ensure that the aircraft can sail normally when the weather is calm.

As shown in Fig. 3 and Fig. 4, when encountering rising wave flow, the buoyancy ball is lighter, rises rapidly with the wave, and the hull motion response is relatively lagging, which in turn causes the hydrofoil to deflect downward, and the hydrofoil is subjected to the downwash flow to generate thrust to push the water surface to sail forward; when encountering falling wave flow, the buoyancy ball under the action of its own gravity, combined with the local flow encountered by the hydrofoil, makes the hydrofoil deflect upward, generating forward thrust, and pushing the water surface vehicle to move. The hydrofoil here refers to the front hydrofoil and the rear hydrofoil, both of which move synchronously.

In this embodiment, wave fluctuations are used to adaptively control the rotational motion of the hydrofoil, so as to improve the efficiency of the hydrofoil in utilizing wave energy and generate greater thrust. The wave energy vehicle with adaptive hydrofoil angle of attack can effectively utilize wave energy and realize the optimization of the performance of the surface wave energy vehicle. The hydrofoil uses the movement of the buoyancy ball and the wave in the wave field to change the rotational motion of the hydrofoil, which can use wave energy more efficiently to propel and increase the sailing speed of such surface vehicles. The hydrofoil here refers to the front hydrofoil and the rear hydrofoil, both of which move synchronously.

In this embodiment, the first connecting part and the second connecting part may also be other rigid parts, such as stainless steel plates, and it is sufficient that the hydrofoil can swing relative to it.

The first support member and the second support member can also be other rigid parts, such as fixed seats, fixed frames, fixed plates, etc. made of stainless steel, which can realize the swing of the corresponding transmission rods around them.

The first tension and compression rod, the first transmission rod and the first floating and sinking rod are all made of stainless steel cylindrical rods, and of course other corrosion-resistant profiles or other corrosion-resistant rigid parts can be used. The same is true for the second tension and compression rod, the second transmission rod and the second floating and sinking rod.

The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods, and are all included within the protection scope of the present invention.

Claims (8)

1. A hydrofoil angle of attack self-adaptive wave energy craft characterized in that: the front end of the front hydrofoil is hinged with the bottom of the ship body through a first connecting piece, and the rear end of the front hydrofoil is hinged with one end of the first transmission part; the first transmission part is hinged on the ship body through a first supporting part, and the other end of the first transmission part extends to the outside of the bow of the ship body and is connected with the front buoyancy ball; the front end of the rear hydrofoil is hinged with the bottom of the ship body through a second connecting piece, and the rear end of the rear hydrofoil is hinged with one end of a second transmission part; the second transmission part is hinged on the ship body through a second supporting part, and the other end of the second transmission part extends to the outside of the stern of the ship body and is connected with the rear buoyancy ball; the front hydrofoil is positioned at the bottom of the bow of the hull, and the rear hydrofoil is positioned at the bottom of the stern of the hull.

2. A hydrofoil angle of attack adaptive wave energy craft in accordance with claim 1 wherein: the first transmission part comprises a first pulling and pressing rod, a first transmission rod and a first floating and sinking rod, the ship body is provided with a first pipe hole penetrating through the ship body, the first transmission rod is hinged to the ship body through a first supporting part, the front end of the first transmission rod extends to the outside of the bow of the ship body, one end of the first floating and sinking rod is fixedly connected with the front end of the first transmission rod, and the other end of the first floating and sinking rod is fixedly connected with the front buoyancy ball; one end of the first pulling compression bar is hinged with the rear end of the first transmission bar, the other end of the first pulling compression bar extends from the top of the ship body to the bottom of the ship body through the first pipe hole, and the other end of the first pulling compression bar is hinged with the rear end of the front hydrofoil.

3. A hydrofoil angle of attack adaptive wave energy craft in accordance with claim 1 wherein: the second transmission part comprises a second pulling and pressing rod, a second transmission rod and a second floating and sinking rod, the ship body is provided with a second pipe hole penetrating through the ship body, the second transmission rod is hinged to the ship body through a second supporting part, the rear end of the second transmission rod extends to the outside of the stern of the ship body, one end of the second floating and sinking rod is hinged to the rear end of the second transmission rod, and the other end of the second floating and sinking rod is fixedly connected with the rear buoyancy ball; one end of the second pulling compression bar is fixedly connected with the front end of the second transmission rod, the other end of the second pulling compression bar penetrates through the second pipe hole from the top of the ship body to extend towards the bottom of the ship body, and the other end of the second pulling compression bar is hinged with the rear end of the rear hydrofoil.

4. A hydrofoil angle of attack adaptive wave energy craft in accordance with claim 1 wherein: the first connecting piece is a rod piece, the rod piece adopted by the first connecting piece is a first connecting rod, the first connecting rod is vertically arranged, the top end of the first connecting rod is fixedly connected with the bottom of the ship body, and the bottom end of the first connecting rod is hinged with the front end of the front hydrofoil.

5. A hydrofoil angle of attack adaptive wave energy craft in accordance with claim 4 wherein: the second connecting piece is the member, and the member that the second connecting piece adopted is the second connecting rod, and the vertical setting of second connecting rod, the bottom fixed connection of the top of second connecting rod and hull, the bottom of second connecting rod are articulated with the front end of back hydrofoil, and the bottom plane of second connecting rod and the bottom plane of head rod are located same horizontal plane.

6. A hydrofoil angle of attack adaptive wave energy craft in accordance with claim 2 wherein: the first supporting component is a first supporting rod, the first supporting rod is vertically arranged, the bottom end of the first supporting rod is fixed on the bow of the ship body, and the top end of the first supporting rod is hinged with the first transmission rod.

7. A hydrofoil angle of attack adaptive wave energy craft in accordance with claim 3 wherein: the second supporting component is a second supporting rod, the second supporting rod is vertically arranged, the bottom end of the second supporting rod is fixed at the stern of the ship body, and the top end of the second supporting rod is hinged with the second transmission rod.

8. A hydrofoil angle of attack adaptive wave energy craft in accordance with claim 1 wherein: the front hydrofoil and the rear hydrofoil are convexly arranged along the two ends of the width direction of the ship body.