CN114228989B - Amphibious water surface life-saving device based on box type wing pneumatic layout - Google Patents
Amphibious water surface life-saving device based on box type wing pneumatic layout Download PDFInfo
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- CN114228989B CN114228989B CN202210031281.1A CN202210031281A CN114228989B CN 114228989 B CN114228989 B CN 114228989B CN 202210031281 A CN202210031281 A CN 202210031281A CN 114228989 B CN114228989 B CN 114228989B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C35/00—Flying-boats; Seaplanes
- B64C35/008—Amphibious sea planes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/13—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like attachable to body member, e.g. arm, neck, head or waist
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Abstract
The invention provides an amphibious water surface life-saving device based on box-type wing pneumatic layout, which is the box-type wing pneumatic layout and comprises: front wing, back wing, left front and back wing connecting section, right front and back wing connecting section, first power rotor, second power rotor, third power rotor and fourth power rotor; the front wing and the rear wing are horizontally arranged in parallel; the front wing is lower than the rear wing. The amphibious water surface life-saving device based on the box-type wing pneumatic layout has the following advantages: (1) The box-type wing layout enables the aircraft to have an ergonomic lifesaving appearance, has three functions of an unmanned plane, an unmanned ship and a life buoy, can quickly and actively arrive at the body of a searched and rescuing object to rescue in an air flight and water surface cruising mode, and has an autonomous lifesaving function. (2) Overcomes the defects of inaccurate throwing and randomness in the rescue mode of throwing the life buoy of the existing unmanned aerial vehicle, improves the rescue efficiency, and improves the survival rate of the rescuee to the greatest extent.
Description
Technical Field
The invention belongs to the technical field of water surface lifesaving, and particularly relates to an amphibious water surface lifesaving device based on box-type wing pneumatic layout.
Background
Flood disasters are a natural disaster which is frequently and seriously happened at present, and the direct economic loss of the flood disasters accounts for about 60% of the direct total economic loss of various natural disasters. Flood disasters are generally characterized by high occurrence frequency, wide influence range and economic loss.
However, although casualties and economic losses due to floods often occur annually, safety rescue equipment for flood disasters remains relatively lacking. The existing rescue equipment mainly comprises the following components: the life boats, life rafts, air cushion boats, rubber boats, submarines and the like have the defects of large volume, heavy weight, inconvenient storage and transportation, high difficulty in daily maintenance and the like. In addition, equipment driven by fuel power, such as a lifeboat, a submarines and the like, needs to take a warming-up measure when being started in a low-temperature environment; the hovercraft has low towing speed, so the number of the hovercraft reaching disaster areas in a short time is limited, and the use cost is high; the life raft, the rubber dinghy and the like have poor wind and wave resistance, are easily overturned under the influence of wind and waves and have insufficient power, so that the rescue distance is shorter. Most importantly, the rescue equipment needs professional rescue workers to carry out the rescue after being involved in driving to the trapped workers, and under the condition of extremely turbulent water flow, the rescue equipment can not only cause failure of rescue actions, but also can jeopardize the safety of the rescue workers.
In recent years, rescue methods for throwing a life buoy by an unmanned aerial vehicle have appeared, and the problems are solved to a certain extent, but the method simply uses the transportation function of the unmanned aerial vehicle, and the throwing accuracy is poor.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides an amphibious water surface life-saving device based on box-type wing pneumatic layout, which can effectively solve the problems.
The technical scheme adopted by the invention is as follows:
the invention provides an amphibious water surface life-saving device based on box-type wing pneumatic layout, the appearance of the amphibious water surface life-saving device based on box-type wing pneumatic layout is the box-type wing pneumatic layout, comprising: front wing (1), back wing (2), left front and back wing connecting section (3), right front and back wing connecting section (4), first power rotor (5), second power rotor (6), third power rotor (7) and fourth power rotor (8);
the front wing (1), the left front and rear wing connecting section (3), the rear wing (2) and the right front and rear wing connecting section (4) are connected end to form a closed annular structure; the front wing (1) and the rear wing (2) are horizontally arranged in parallel; the height of the front wing (1) is lower than that of the rear wing (2);
the first power rotor wing (5) is fixedly arranged on the upper airfoil surface of the nose part of the front wing (1); -fixedly mounting said second power rotor (6) on the upper airfoil surface of the left wing tip position of said front wing (1); -fixedly mounting said third power rotor (7) on the upper airfoil surface of the right wing tip position of said front wing (1); the surface of the wing surface is arranged on the tail part of the rear wing (2), and the fourth power rotor wing (8) is fixedly arranged; wherein the first power rotor (5), the second power rotor (6), the third power rotor (7) and the fourth power rotor (8) are arranged in parallel.
Preferably, the wing profiles of the front wing (1) and the rear wing (2) are the same and are symmetrical wing profiles; defining the chord length of the airfoil as c, the front edge of the airfoil as a semicircular arc with the radius of R, and the rear edge of the airfoil as a semicircular arc with the radius of R, then: r/c=0.2 to 0.4, R/c=0.05 to 0.1; the span length is defined as L, L/c=4 to 7.
Preferably, the center of the half arc of the front edge of the wing profile and the center of the half arc of the rear edge of the wing profile are on the same horizontal line, and the upper end point (A1) of the half arc of the front edge of the wing profile is connected with the upper end point (A2) of the half arc of the rear edge of the wing profile through an upper wing surface straight line (F1); the lower end point (B1) of the half arc of the airfoil front edge is connected with the lower end point (B2) of the half arc of the airfoil rear edge through a lower airfoil straight line (F2).
Preferably, the shape of the amphibious water surface life saving device based on the box-type wing pneumatic layout is mirror symmetrical with respect to the central axis of the body;
forward wing sweep angle theta 1 Is the included angle between the front edge of the front wing and the vertical line of the central axis of the machine body;
sweepforward angle theta of rear wing 2 The included angle between the front edge of the rear wing and the vertical line of the central axis of the machine body is formed;
then there are: forward wing sweep angle theta 1 =backswing forward sweep angle θ 2 。
Preferably, the front wing (1) comprises a left front wing part (H1), a right front wing part (H2) and a front wing connecting transition section (H3) which are integrally formed;
the central angle of the front wing connecting transition section (H3) is theta 3 The left end point of the front wing connecting transition section (H3) extends out of the linear left front wing part (H1), and the right end point of the front wing connecting transition section (H3) extends out of the linear right front wing part (H2);
the rear wing (2) has the same shape as the front wing (1).
Preferably, the central angle θ 3 ＝2θ 1 。
Preferably, the difference in height between the front wing (1) and the rear wing (2) is h, h/c=0.7 to 1.2.
Preferably, the left front and rear wing connecting section (3) and the right front and rear wing connecting section (4) are thin plates with the thickness d; d/c=0.2 to 0.3;
and the included angle between the left front and rear wing connecting sections (3) and the horizontal direction is the same as the included angle between the right front and rear wing connecting sections (4) and the horizontal direction, and is beta.
Preferably, β=30 to 60 °.
Preferably, the total length of the fuselage is defined as Z, Z/c=5 to 7;
the distance from the first power rotor wing (5) to the front end point of the life-saving device is x 1 ，x 1 /Z＝0.05～0.07；
The distance from the second power rotor (6) to the front end point of the life-saving device is x, which is the same as the distance from the third power rotor (7) to the front end point of the life-saving device 2 ，x 2 /Z＝0.35～0.37；
The distance from the second power rotor wing (6) to the left wing tip of the front wing (1) is the same as the distance from the third power rotor wing (7) to the right wing tip of the front wing (1), and y/c=0.35-0.45;
the distance from the fourth power rotor (8) to the front end point of the life-saving device is x 3 ，x 3 /Z＝0.93～0.95。
The amphibious water surface life-saving device based on the box-type wing pneumatic layout has the following advantages:
(1) The box-type wing layout enables the aircraft to have an ergonomic lifesaving appearance, has three functions of an unmanned plane, an unmanned ship and a life buoy, can quickly and actively arrive at the body of a searched and rescuing object to rescue in an air flight and water surface cruising mode, and has an autonomous lifesaving function.
(2) Overcomes the defects of inaccurate throwing and randomness in the rescue mode of throwing the life buoy of the existing unmanned aerial vehicle, improves the rescue efficiency, and improves the survival rate of the rescuee to the greatest extent.
Drawings
FIG. 1 is a top view of an amphibious water surface life saving device based on a box-type wing aerodynamic layout provided by the invention;
fig. 2 is a front view of the amphibious water surface life saving device based on the box-type wing pneumatic layout;
fig. 3 is a side view of the amphibious water surface life saving device based on the box type wing pneumatic layout.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides an amphibious water surface life-saving device based on box-type wing pneumatic layout, which integrates an unmanned aerial vehicle and a life buoy, and greatly improves the rapidity, safety and economy of rescue under flood disaster conditions.
The invention provides an amphibious water surface life-saving device based on box-type wing pneumatic layout, which has the following characteristics: 1) The box type wing pneumatic layout is adopted, and compared with the conventional layout, the pneumatic efficiency of the aircraft can be effectively improved. Compared with the conventional layout, the box type wing layout has the advantages of small wing size, light structure weight, high rigidity, high lift coefficient, good stability and operability and the like. 2) The wings of the box type wings are closed, and the box type wing is similar to the shape of a life buoy, and has the natural advantage of the life buoy.
Specifically, the air/water surface amphibious intelligent water surface life-saving device based on the box-type wing pneumatic layout provided by the invention is used for researching the pneumatic characteristics, the operability and the stability of the life-saving device through the layout design and the power configuration of the life-saving device, evaluating the feasibility of the scheme and finally providing a design scheme and a verification model. The life saving device is used in rescue and relief work in time after the achievement is achieved, and the life and property safety of people is guaranteed.
Referring to fig. 1-3, the amphibious water surface life-saving device based on box-type wing pneumatic layout provided by the invention has the appearance of the amphibious water surface life-saving device based on box-type wing pneumatic layout, which is the box-type wing pneumatic layout, and comprises: front wing 1, rear wing 2, left front and rear wing connecting section 3, right front and rear wing connecting section 4, first power rotor 5, second power rotor 6, third power rotor 7 and fourth power rotor 8;
the front wing 1, the left front and rear wing connecting section 3, the rear wing 2 and the right front and rear wing connecting section 4 are connected end to form a closed annular structure; the front wing 1 and the rear wing 2 are horizontally arranged in parallel; the height of the front wing 1 is lower than that of the rear wing 2;
the first power rotor wing 5 is fixedly arranged on the upper airfoil surface of the nose part of the front wing 1; fixedly mounting the second power rotor 6 on the upper airfoil surface of the left wing tip position of the front wing 1; fixedly mounting the third power rotor 7 on the upper airfoil surface of the right wing tip position of the front wing 1; the surface of the upper airfoil surface of the tail part of the rear wing 2 is fixedly provided with the fourth power rotor 8; wherein the first power rotor 5, the second power rotor 6, the third power rotor 7 and the fourth power rotor 8 are arranged in parallel.
The following describes the main design parameters of the present invention in detail:
(1) The wing profiles of the front wing 1 and the rear wing 2 are the same and are symmetrical wing profiles; defining the chord length of the airfoil as c, the front edge of the airfoil as a semicircular arc with the radius of R, and the rear edge of the airfoil as a semicircular arc with the radius of R, then: r/c=0.2 to 0.4, R/c=0.05 to 0.1; the span length is defined as L, L/c=4 to 7.
(2) The center of the airfoil front edge semicircular arc and the center of the airfoil rear edge semicircular arc are on the same horizontal line, and the upper endpoint A1 of the airfoil front edge semicircular arc is connected with the upper endpoint A2 of the airfoil rear edge semicircular arc through an upper airfoil straight line F1; the lower endpoint B1 of the airfoil leading edge semicircle is connected with the lower endpoint B2 of the airfoil trailing edge semicircle through a lower airfoil straight line F2.
(3) The appearance of the amphibious water surface life saving device based on the box type wing pneumatic layout is mirror symmetrical with respect to the central axis of the body;
forward wing sweep angle theta 1 Is the included angle between the front edge of the front wing and the vertical line of the central axis of the machine body;
sweepforward angle theta of rear wing 2 The included angle between the front edge of the rear wing and the vertical line of the central axis of the machine body is formed;
then there are: forward wing sweep angle theta 1 =backswing forward sweep angle θ 2 。
(4) The front wing 1 comprises a left front wing part H1, a right front wing part H2 and a front wing connecting transition section H3 which are integrally formed;
the front wing connecting transition section H3 is a central angle theta 3 Is a circular arc of (a), a central angle theta 3 ＝2θ 1 . The left end point of the front wing connecting transition section H3 extends out of the linear left front wing part H1, and the right end point of the front wing connecting transition section H3 extends out of the linear right front wing part H2;
the rear wing 2 has the same shape as the front wing 1.
(5) The height difference between the front wing 1 and the rear wing 2 is h, and h/c=0.7 to 1.2.
(6) The left front and rear wing connecting section 3 and the right front and rear wing connecting section 4 are thin plates with the thickness d; d/c=0.2 to 0.3;
and the included angle between the left front and rear wing connecting sections 3 and the horizontal direction is the same as the included angle between the right front and rear wing connecting sections 4 and the horizontal direction, and is beta. β=30 to 60, and as a preferred embodiment, β=45°.
(7) Defining the total length of the airframe as Z, wherein Z/c=5-7;
the distance from the first power rotor 5 to the front end point of the life-saving device is x 1 ，x 1 /Z＝0.05～0.07；
The distance from the second power rotor 6 to the front end point of the life-saving device is x, which is the same as the distance from the third power rotor 7 to the front end point of the life-saving device 2 ，x 2 /Z＝0.35～0.37；
The distance from the second power rotor 6 to the left wing tip of the front wing 1 is the same as the distance from the third power rotor 7 to the right wing tip of the front wing 1, and y/c=0.35-0.45;
the distance from the fourth power rotor 8 to the front end point of the life-saving device is x 3 ，x 3 /Z＝0.93～0.95。
Therefore, the invention improves the circular layout of the traditional life buoy into the pneumatic layout based on box wings, and simultaneously installs four rotors on the head part, the two sides of the wing and the tail part to provide power, so that the life buoy has the capability of flying in the air. The invention provides an unmanned aerial and water surface amphibious life-saving device based on box-type wing layout. The life-saving device organically combines a box-type wing structure with a swim ring, and comprises an aircraft main body, a power system and a towing rope. The life-saving device has an ergonomic life-saving appearance, can quickly and actively reach the side of a searched and rescuing object to carry out rescue in an air flight and water surface cruising mode, and finally, rescue personnel drag the life-saving device and the rescue personnel to a safe area through a dragging rope of the life-saving device.
The invention provides an amphibious water surface life-saving device based on box-type wing pneumatic layout, which has the following application principle:
1) The amphibious water surface life-saving device flies in the air through driving of the four power rotors, and when flying to a target position, the amphibious water surface life-saving device descends to the water surface at fixed points.
2) When the amphibious water surface life-saving device falls on the water surface, the amphibious water surface life-saving device plays a role of a swimming ring, so that the body of a searched and rescuing object drills into the inside of the closed annular structure of the life-saving device, and rescue is carried out on the searched and rescuing object.
3) At this time, one end of the towing rope is fixed with the amphibious water surface life-saving device, the other end of the towing rope is positioned in the hands of rescue personnel, and the amphibious water surface life-saving device cruises on the water surface through the traction of the rescue personnel, so that a searched and rescuing object is conveyed to the shore, and the rescue is realized.
The invention has the following extending effects:
(1) Through the research and development process of the target life-saving device, an optimal scheme for integrating the unmanned aerial vehicle, the unmanned ship and the life buoy is explored, so that the amphibious unmanned aerial vehicle obtains new development.
(2) The novel rescue mode is explored, the precedent of autonomous rescue of the unmanned aerial vehicle is opened, and a novel innovation idea is provided for other rescue devices.
(3) When no rescue task is performed, the unmanned aerial vehicle can be provided with a payload with a specific function, so that emergency guarantee work such as illumination, on duty and the like is completed, survey tasks such as water quality, humidity and the like are completed, navigation and position information are provided, and tactical assistance is provided for the military.
The amphibious water surface life-saving device based on the box-type wing pneumatic layout has the following advantages:
(1) The box-type wing layout enables the aircraft to have an ergonomic lifesaving appearance, has three functions of an unmanned plane, an unmanned ship and a life buoy, can quickly and actively arrive at the body of a searched and rescuing object to rescue in an air flight and water surface cruising mode, and has an autonomous lifesaving function.
(2) Overcomes the defects of inaccurate throwing and randomness in the rescue mode of throwing the life buoy of the existing unmanned aerial vehicle, improves the rescue efficiency, and improves the survival rate of the rescuee to the greatest extent.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which is also intended to be covered by the present invention.
Claims (1)
1. The utility model provides an amphibious formula surface of water life saving equipment based on box-type wing aerodynamic layout which characterized in that, the appearance of amphibious formula surface of water life saving equipment based on box-type wing aerodynamic layout is box-type wing aerodynamic layout, includes: front wing (1), back wing (2), left front and back wing connecting section (3), right front and back wing connecting section (4), first power rotor (5), second power rotor (6), third power rotor (7) and fourth power rotor (8);
the front wing (1), the left front and rear wing connecting section (3), the rear wing (2) and the right front and rear wing connecting section (4) are connected end to form a closed annular structure; the front wing (1) and the rear wing (2) are horizontally arranged in parallel; the height of the front wing (1) is lower than that of the rear wing (2);
the first power rotor wing (5) is fixedly arranged on the upper airfoil surface of the nose part of the front wing (1); -fixedly mounting said second power rotor (6) on the upper airfoil surface of the left wing tip position of said front wing (1); -fixedly mounting said third power rotor (7) on the upper airfoil surface of the right wing tip position of said front wing (1); the surface of the wing surface is arranged on the tail part of the rear wing (2), and the fourth power rotor wing (8) is fixedly arranged; wherein the first power rotor (5), the second power rotor (6), the third power rotor (7) and the fourth power rotor (8) are arranged in parallel;
wherein, the wing profiles of the front wing (1) and the rear wing (2) are the same and are symmetrical wing profiles; defining the chord length of the airfoil as c, the front edge of the airfoil as a semicircular arc with the radius of R, and the rear edge of the airfoil as a semicircular arc with the radius of R, then: r/c=0.2 to 0.4, R/c=0.05 to 0.1; defining the span length as L, wherein L/c=4-7;
the center of the airfoil front edge semicircular arc and the center of the airfoil rear edge semicircular arc are on the same horizontal line, and the upper end point (A1) of the airfoil front edge semicircular arc is connected with the upper end point (A2) of the airfoil rear edge semicircular arc through an upper airfoil straight line (F1); the lower end point (B1) of the half arc of the airfoil front edge is connected with the lower end point (B2) of the half arc of the airfoil rear edge through a lower airfoil straight line (F2);
wherein, the appearance of the amphibious water surface life-saving device based on the box-type wing pneumatic layout is mirror symmetrical with respect to the central axis of the body;
forward wing sweep angle theta 1 Is the included angle between the front edge of the front wing and the vertical line of the central axis of the machine body;
sweepforward angle theta of rear wing 2 The included angle between the front edge of the rear wing and the vertical line of the central axis of the machine body is formed;
then there are: forward wing sweep angle theta 1 =backswing forward sweep angle θ 2 ；
The front wing (1) comprises a left front wing part (H1), a right front wing part (H2) and a front wing connecting transition section (H3) which are integrally formed;
the central angle of the front wing connecting transition section (H3) is theta 3 The left end point of the front wing connecting transition section (H3) extends out of the linear left front wing part (H1), and the right end point of the front wing connecting transition section (H3) extends out of the linear right front wing part (H2);
the rear wing (2) has the same shape as the front wing (1);
wherein the central angle theta 3 ＝2θ 1 ；
Wherein the height difference between the front wing (1) and the rear wing (2) is h, and h/c=0.7-1.2;
wherein, the left front and rear wing connecting section (3) and the right front and rear wing connecting section (4) are thin plates with the thickness d; d/c=0.2 to 0.3;
the included angle between the left front and rear wing connecting sections (3) and the horizontal direction is the same as the included angle between the right front and rear wing connecting sections (4) and the horizontal direction, and is beta;
wherein β=30 to 60 °;
wherein, the total length of the airframe is defined as Z, and Z/c=5-7;
the distance from the first power rotor wing (5) to the front end point of the life-saving device is x 1 ，x 1 /Z＝0.05～0.07；
The distance from the second power rotor (6) to the front end point of the life-saving device is x, which is the same as the distance from the third power rotor (7) to the front end point of the life-saving device 2 ，x 2 /Z＝0.35～0.37；
The distance from the second power rotor wing (6) to the left wing tip of the front wing (1) is the same as the distance from the third power rotor wing (7) to the right wing tip of the front wing (1), and y/c=0.35-0.45;
the distance from the fourth power rotor (8) to the front end point of the life-saving device is x 3 ，x 3 /Z＝0.93～0.95。
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