CN102951167A - High-speed railway based aerodynamic aerotrain with simulated wings on lateral sides of aerotrain body - Google Patents

Abstract

The invention relates to a locomotive and a carriage in a railway system, in particular to an aerodynamic suspension train based on a high-speed railway with imitated wings on the side of the carriage. The present invention is that the left and right sides of the locomotive of the train and the left and right sides of each compartment are respectively symmetrically equipped with imitation wings imitating the wing structure of the aircraft. The aerodynamic suspension train based on the high-speed railway of the present invention has imitated wings on the side of the car body. During the running process, due to the imitated wings installed on the train, the airflow relative to the train acts on the imitated wings to generate Lifting force can provide lifting force for high-speed trains, thereby reducing the pressure of the train on the rails, and this force is generated by aerodynamic force, which does not consume additional energy and does not produce pollution. The structure of the imitation wing is simple.

Description

Aerodynamic levitation train with imitation wings on the side of the car body based on high-speed railway

technical field

The present invention relates to locomotives and carriages in the railway system, and in particular to the use of aerodynamics to generate a certain degree of air suspension force for high-speed trains through the imitation wing structure imitating the wing structure of an airplane installed on the train An aerodynamic levitation train based on a high-speed rail body with imitation wings on the side.

Background technique

At present, the known means of speeding up trains based on high-speed railways is to use magnetic levitation to reduce the friction of the wheels on the rails. However, the disadvantages of the magnetic levitation method are: 1. The train cannot change tracks, unlike trains that run on conventional railways. Turnouts go from one track to another; one track can only accommodate one train running back and forth, resulting in a waste of resources. 2. Since the maglev system relies on electromagnetic force for levitation, guidance and driving operation, once the power is cut off, serious safety accidents will occur to the maglev train. Therefore, the safety guarantee measures for the maglev train after the power failure have not been completely resolved. 3. Strong magnetic fields will have adverse effects on human health, the balance of the ecological environment and the operation of electronic products.

Aircraft can effectively provide lifting force by means of its wings and leave the ground, and applying the principle of lifting into the air to high-speed trains is the purpose of the present invention.

Contents of the invention

The purpose of the present invention is to provide a kind of aerodynamic levitation train that can avoid the deficiency of magnetic levitation technology, and can run at high speed on the high-speed railway based on the side of the car body of the high-speed railway with imitated wings.

Inspired by the principle of aircraft lift-off, the present invention imitates the wing structure of an aircraft to prepare imitated wings, and installs the imitated wings on the sides of locomotives and carriages of trains. Acting on the imitation wing to provide sufficient lift for high-speed trains, to achieve a similar effect to magnetic levitation, and to reduce energy loss caused by friction between wheels and rails.

The aerodynamic suspension train with imitated wings on the side of the car body based on the high-speed railway of the present invention is that the left and right sides of the locomotive of the train and the left and right sides of each carriage are respectively symmetrically equipped with imitated aircraft wing structures Fake wing.

The total number of imitation wings symmetrically installed on the left and right sides of the locomotive of the train is more than 4 (2 groups); the total number of preferably installed is 4 to 12 (2 to 6 groups) of imitation wings.

The total number of imitation wings installed symmetrically on the left and right sides of each compartment is more than 4 (2 groups); the total number preferably installed is 4-12 (2-6 groups) of imitation wings.

The quantity of the imitation wing that is installed on the described every compartment is as many.

The imitation wings installed symmetrically on the left and right sides of the locomotive, the imitation wings installed on each side are installed on the sides of the locomotive in an equidistant installation mode, and each group (the symmetrically installed left and right sides) One imitation wing is one group) the central transverse axis of the imitation wing that the left and right sides are symmetrically installed is on the same transverse axis.

The imitation wings installed symmetrically on the left and right sides of each compartment, the imitation wings installed on each side are installed on the sides of each compartment in an equidistant installation mode, and each group (left and right sides Each imitation wing that is installed symmetrically is one group) The central transverse axis of the imitation wing that the left and right sides are symmetrically installed is on the same transverse axis.

The equidistant installation method of the imitation wing installed on the side of the locomotive is to install the imitation wing at the front end (i.e. the first) of the imitation wing area installed on the side of the locomotive to the side of the locomotive. The distance from the front end edge, the distance from the rear end edge of the locomotive side to the rear end edge of the locomotive side, and the distance from the rear end edge of the locomotive side that can be installed on the side of the locomotive. The distance between the wings is equal.

The equidistant installation method of the imitation wing installed on the side of each carriage is to install the imitation wing at the front end (i.e. the first) of the imitation wing area installed on the side of the carriage to the carriage. The distance from the front edge of the side, the distance from the rear end edge of the side of the compartment to the rear end edge of the side of the compartment, and the distance from the rear end edge of the side of the compartment that can be installed on the side of the compartment. The distance between the simulated wings is equal.

The distance (d) between the front and rear of the described imitation wing is determined by the length (L) of the locomotive or carriage, the number (N) of the imitation wing and the horizontal length of the fixed base (D), L=N×D+( N+1)×d. As described, the distance from the front end (i.e. the first) imitation wing to the front edge or the rear edge of the locomotive side or the side of the carriage is all taken as d; d/2 can also be taken, if d/2 is taken then there is L=N×D+N×d (as getting d, promptly the distance from the last imitation wing of the first compartment side to the rear end edge of the compartment side is d, and the first imitation wing on the second compartment side The distance between the wing and the front edge of the side of the second car is also d, so the distance between the two imitation wings is 2d; and d/2 is taken, that is, the last imitation wing on the side of the first car is to the The distance from the rear end edge of the side of the carriage is d/2, and the distance from the first imitation wing on the side of the second carriage to the front edge of the second carriage is also d/2, then between the two imitation wings The distance between them is d, which ensures that the distance between every two imitation wings is d).

The installation angle of the imitation wing is a variable angle, and the range of the sweep angle of the horizontal wing of the imitation wing is between 0 degree and 15 degrees. The setting of the installation angle is based on the specific actual demand as the first criterion. How much lift can be reached when how many degrees need to be reached, how many degrees are used during design and construction.

The structure of described imitation wing mainly is made of fixed base (preferably fixed base is cuboid structure, thickness can be 60-70 millimeter) and the horizontal wing that is fixed on it, and one side of this fixed base is connected with horizontal wing, The other side is installed on the side of the locomotive or carriage. The horizontal wing forms a 90-degree right angle with the fixed base. The overall imitation wing structure becomes a symmetrical shape relative to the locomotive or the compartment.

The highest point of the upper edge of the horizontal wing imitating the wing installed on the side of the locomotive is 40-70 centimeters away from the bottom of the locomotive.

The highest point of the upper edge of the horizontal wing imitating the wing installed on the side of the compartment is 40-0 cm away from the bottom of the compartment.

The structure of the horizontal wing is designed and prepared with reference to the structure of the wing of the aircraft, and its structure is streamlined overall, with an angle of attack, a leading edge sweep and a trailing edge sweep; The edge can be provided with an artificial spoiler structure; a trailing edge flap (a trailing edge double-slit flap as shown in Figure 3, or a trailing edge single-slit flap) is installed on the trailing edge of the horizontal wing. The installed trailing edge flap can increase the curvature of the streamlined horizontal wing, thereby increasing the lift coefficient and increasing the lift force obtained by the horizontal wing.

The artificial spoiler structure that the leading edge of described horizontal wing is provided with can be divided into following six types: (a) increase the degree of roughness on the leading edge part of the upper surface of horizontal wing (the degree of roughness depends on the situation and material); b) A protruding spoiler strip is added near the leading edge of the upper surface of the horizontal wing; (c) at the leading edge of the span of the horizontal wing, a row of 3 to 5 cm in diameter is vertically opened every 5 cm, Spoiler holes with a depth of no more than 2 cm; (d) attach an elastic flow-around belt in front of the leading edge of the horizontal wing; (e) add dotted line distribution on the leading edge of the horizontal wing, each Block-shaped protruding spoilers with a diameter of less than 5 cm and a spacing of 7 to 15 cm; (f) adding zigzag protruding spoilers, spoiler holes or elastic flow-around strips on the front edge of the horizontal wing.

Described horizontal wing is flat wing, and the section of its flat wing (as shown in Figure 1) is selected from flat wing section (it is equivalent to the section of kite, produces lift by angle of attack), typical bird wing section, It is one of the wing sections with a slightly flat upper arch and lower (good aerodynamic characteristics, large lift), and airfoil sections with symmetrical upper and lower wing surfaces (can be made into thin wings).

The length of the horizontal wing is 150-225 cm, the root-to-tip ratio is 0.5-1, the area is 1.125-2.25 square meters, the leading edge sweep angle is 0-26.5 degrees, and the trailing edge sweep angle is -26.5-0 degrees, and the angle of attack is 0 to 15 degrees.

During the running process of the aerodynamic suspension train with wings on the side of the car body based on high-speed railway, due to the imitation airfoil installed on the train, the airflow relative to the train acts on the imitation airfoil to generate lift. It can provide lifting force to the high-speed train, thereby reducing the pressure of the train on the rail, and the force is generated by aerodynamic force, which does not consume additional energy and does not produce pollution. The structure of the imitation wing is simple.

Description of drawings

Fig. 1. the airfoil section schematic diagram of the different shapes of imitation wing described in the present invention; Wherein:

(1) is the section of flat wing; (2) is the section of typical bird wing; (3), (4), (5) and (6) are the section of slightly flat wing under arch; (7), (8), (9) and (10) are the sections of the airfoil with symmetrical upper and lower airfoils.

Fig. 2. The different artificial spoiler structure schematic diagrams that the leading edge of horizontal wing described in the present invention is provided with; Wherein:

a is to increase the roughness on the leading edge of the upper surface of the horizontal wing; b is to add a protruding spoiler strip on the upper surface of the horizontal wing near the leading edge; c is to open a row at the leading edge of the horizontal wing Spoiler holes; d is to add an elastic flow-around belt in front of the leading edge of the horizontal wing; e is to add block-shaped protruding spoilers distributed in dotted lines and arranged at equal intervals on the leading edge of the horizontal wing; f is The additional shape on the front edge of the horizontal wing is a spoiler formed by a zigzag protruding spoiler strip, a spoiler hole or an elastic wraparound band.

Fig. 3. The artificial spoiler structure that the leading edge of horizontal wing described in the present invention is provided with, and the trailing edge double-slit flap structure schematic diagram that is installed in trailing edge.

Fig. 4. The schematic top view of the structure of the imitation wing described in the present invention.

Fig. 5. A three-dimensional schematic diagram of the structure of the imitation wing described in the present invention.

Fig. 6. The schematic diagram of the aerodynamic suspension train with imitation wings on the side of the car body based on the high-speed railway of the present invention.

reference sign

1. Horizontal wing 2. Artificial spoiler structure

3. Trailing edge double-slotted flap 4. Fixed base

I. The body of the high-speed train II. Imitation of the wing

d. The distance between two imitation wings α. The sweep angle of the horizontal wing of the imitation wing

Detailed ways

Example 1

Please refer to Fig. 4 and Fig. 5, the structure of imitation wing is mainly made of the fixed base 4 of rectangular parallelepiped structure and the horizontal wing 1 fixed thereon; Wherein, one side of this fixed base is connected with horizontal wing, and the other side is installed on The side of the locomotive or carriage, the horizontal length of the fixed base is 1 meter, the width is 50 cm, the thickness of the fixed base is 65 mm, and the horizontal wing is at a right angle of 90 degrees to the fixed base; the level of the imitation wing installed on the locomotive and the carriage The highest point of the upper edge of the wing is 60 centimeters away from the locomotive or the bottom of the compartment respectively.

Described horizontal wing adopts flat-plate wing, and the section of its flat-shaped wing is as shown in (1) among Fig. 1, and its whole is streamlined, has angle of attack, leading edge sweep angle and trailing edge sweep angle; The artificial spoiler structure 2 added near the leading edge part of the upper surface of the horizontal wing is a protruding spoiler strip (as shown in b in Figure 2); Slit flap 3 (as shown in Figure 3).

The area of described horizontal wing is 1.5 square meters, and this moment root tip ratio is 0.75, and the length of horizontal wing is 171.5 centimetres, and leading edge sweep angle is 15 degrees, and trailing edge sweep angle is-15 degree, and angle of attack is 0 degree.

According to lift formula: Y=1/2ρC _y SV ² (lift=1/2×air density×area of horizontal wing×lift coefficient×square of train speed)

Where the air density ρ is 1.23 kilograms per cubic meter when the altitude is 0; the train speed V takes the expected value of 540 kilometers per hour (ie 150 meters per second). The area S of the horizontal wing takes a value of 1.5 square meters (at this time, the root-to-shoot ratio is 0.75, and the length of the horizontal wing is 171.5 cm); the lift coefficient C _y takes an intermediate value of 1 (based on previous experience, the lift coefficient is determined by the angle of attack and the imitation aircraft The shape of the wing is determined, and it can be obtained when the angle of attack α is 7 to 8 degrees, but at this time it will produce greater resistance.) Under this condition, we choose to install 8 (4 groups) imitation wings.

Y=1/2ρC _y SV ² =1/2×1.23×1×1.5×150×150=20756.25 (Newton)

Lift force is converted into mass: Y=Mg (lift force=mass×gravity coefficient)

Gravity coefficient g takes 9.8 m/ ^s2

Mass M = 20756.25/9.8 = 2118 (kg) = 2.118 (ton)

Total mass M _total = 2.118 × 8 = 16.944 (tons)

Therefore, 8 (4 sets) of imitation wings can provide about 16.944 tons of lift in this case.

Under this condition, the above-mentioned 8 (4 groups) of imitation wings are installed symmetrically and equidistantly on the left and right sides of the compartment of a high-speed rail train with a length of about 25 meters through the fixed base (see Figure 6). And the central transverse axes of the imitation wings symmetrically installed on the left and right sides of each group are on the same transverse axis. According to the calculation formula L=N×D+(N+1)×d, wherein the compartment length L=25 meters, N=4, and the horizontal length of the fixed base is 1 meter, then the imitation wing area installed on the side of the compartment The distance from the most frontal imitation wing to the front edge of the side of the compartment, the distance from the rearmost imitation wing to the rear edge of the side of the compartment that can be installed on the side of the compartment, and the distance from the rear end edge installed on the side of the compartment The distance (d) between the imitation wings of the compartment side all=4.2 meters.

The model of the aerodynamic levitation train with imitation wing on the side of the car body based on the high-speed railway with a scale of 1:80 is made for experiments. Please refer to Figure 6. The car body of the high-speed train is I, and the imitation wing II in the experiment The area is 1/6400 of the real area; the speed of the model in the experiment is 50 m/s, which is 1/3 of the theoretical calculation; the lift coefficient is about 0.5 (the installation angle of the imitation wing and the imitation aircraft The change of the sweep angle α of the horizontal wing of wing is all reflected in the change of lift coefficient, so do not reflect the variation of the installation angle of imitation wing and the change of the sweep angle α of the horizontal wing of imitation wing in the calculation.Following embodiment and This is the same). The experiment finally measured that under the action of the imitated wing, the total weight of the cabin was reduced by 1.40 Newtons. According to the theoretical calculation, the experimental theoretical value should be 20756.25×8/6400/9/2=1.44 (Newton), then the lift force actually obtained is 97.2% of the theoretical value.

Example 2

Please refer to Fig. 4 and Fig. 5, the structure of imitation wing is mainly made of the fixed base 4 of rectangular parallelepiped structure and the horizontal wing 1 fixed thereon; Wherein, one side of this fixed base is connected with horizontal wing, and the other side is installed on The side of the locomotive or carriage, the horizontal length of the fixed base is 1 meter, the width is 50 cm, the thickness of the fixed base is 60 mm, and the horizontal wing is at a right angle of 90 degrees to the fixed base; the level of the imitation wing installed on the locomotive and carriage The highest point of the upper edge of the wing is 70 centimeters away from the locomotive or the bottom of the compartment respectively.

Described horizontal wing adopts flat-plate wing, and the section of its flat-shaped wing is as shown in (1) among Fig. 1, and the artificial spoiler structure that is added on the near leading edge part of the upper surface of described horizontal wing is in horizontal wing The additional shape of the front edge is a zigzag protruding spoiler strip (as shown in f in FIG. 2 ).

The area of described horizontal wing is 2.25 square meters, and this moment root tip ratio is 1, and the length of horizontal wing is 225 centimetres, and leading edge sweep angle is 0 degree, and trailing edge sweep angle is 0 degree, and attack angle is 0 Spend.

According to lift formula: Y=1/2ρC _y SV ² (lift=1/2×air density×area of horizontal wing×lift coefficient×square of train speed)

Where the air density ρ is 1.23 kilograms per cubic meter when the altitude is 0; the train speed V takes the expected value of 540 kilometers per hour (ie 150 meters per second). The area S of the horizontal wing takes a value of 2.25 square meters (at this time, the root-to-shoot ratio is 1, and the length of the horizontal wing is 225 cm); the lift coefficient C _y takes an intermediate value of 2 (based on past experience, the lift coefficient is determined by the angle of attack and the imitation aircraft The shape of the wing is determined, and it is obtained when the maximum angle of attack α is 15 degrees, but at this time it will produce great resistance) Under this condition, we choose to install 4 (2 groups) imitation wings.

Y=1/2×1.23×2×2.25×150×150=62268.75 (Newton)

Lift force is converted into mass: Y=Mg (lift force=mass×gravity coefficient)

Gravity coefficient g takes 9.8 m/ ^s2

Mass M=62268.75/9.8=6354 (kg)=6.354 (ton)

Total mass M _total = 6.354 × 4 = 25.4 (tons)

4 (2 groups) of imitation wings can provide about 25.4 tons of lift in this case.

Under this condition, the above-mentioned 4 (2 groups) imitation wings are fixedly installed on the left and right sides of the carriage of a high-speed train train with a length of about 25 meters through the fixed base symmetrically and equidistantly (see Figure 6). And the central transverse axes of the imitation wings symmetrically installed on the left and right sides of each group are on the same transverse axis. According to the calculation formula L=N×D+(N+1)×d, wherein the compartment length L=25 meters, N=2, and the horizontal length of the fixed base is 1 meter, then the imitation wing area installed on the side of the compartment The distance from the most frontal imitation wing to the front edge of the side of the compartment, the distance from the rearmost imitation wing to the rear edge of the side of the compartment that can be installed on the side of the compartment, and the distance from the rear end edge installed on the side of the compartment The distance (d) between the imitation wings of this compartment side all=7.7 meters.

The model of the aerodynamic levitation train with imitation wing on the side of the car body based on the high-speed railway with a scale of 1:80 is made for experiments. Please refer to Figure 6. The car body of the high-speed train is I, and the imitation wing II in the experiment The area of the model is 1/6400 of the real area; the speed of the model in the experiment is 50 m/s, which is 1/3 of the theoretical calculation; the lift coefficient at this time is about 0.5 according to the experiment. The experiment finally measured that under the action of the imitated wing, the weight of the cabin was reduced by 2.00 Newtons. According to theoretical calculation, the experimental theoretical value should be 62268.75*4/6400/9/2=2.16 (Newton), and then the lift force actually obtained is 92.6% of the theoretical value.

Example 3

Please refer to Fig. 4 and Fig. 5, the structure of imitation wing is mainly made of the fixed base 4 of rectangular parallelepiped structure and the horizontal wing 1 fixed thereon; Wherein, one side of this fixed base is connected with horizontal wing, and the other side is installed on The side of the locomotive or carriage, the horizontal length of the fixed base is 1 meter, the width is 50 cm, the thickness of the fixed base is 60 mm, and the horizontal wing is at a right angle of 90 degrees to the fixed base; the level of the imitation wing installed on the locomotive and carriage The highest point of the upper edge of the wing is 70 centimeters away from the locomotive or the bottom of the compartment respectively.

Described horizontal wing adopts flat-plate wing, and the section of its flat-shaped wing is as shown in (1) among Fig. 1, and the artificial spoiler structure that is added on the near leading edge part of the upper surface of described horizontal wing is in horizontal wing An elastic flow-around belt is attached to the front of the leading edge (as shown in d in Figure 2).

The area of described horizontal wing is 1.125 square meters, and this moment root tip ratio is 0.3, and the length of horizontal wing is 150 centimetres, and leading edge sweep angle is 25 degree, and trailing edge sweep angle is-25 degree, and angle of attack is 0 degree.

According to lift formula: Y=1/2ρC _y SV ² (lift=1/2×air density×area of horizontal wing×lift coefficient×square of train speed)

Where the air density ρ is 1.23 kilograms per cubic meter when the altitude is 0; the train speed V takes the expected value of 540 kilometers per hour (ie 150 meters per second). The area S of the horizontal wing takes a value of 2.25 square meters (at this time, the root-to-tip ratio is 0.5, and the length of the horizontal wing is 150 cm); the lift coefficient C _y takes an intermediate value of 0.3 (based on past experience, the lift coefficient is determined by the angle of attack and the simulated aircraft The shape of the wing is determined, and it is obtained when the minimum angle of attack α is 0 degrees. But the lift generated at this time is small) Under this condition, we choose to install 12 (6 groups) imitation wings.

Lift Y=1/2×1.23×0.3×1.125×150×150=4670 (Newton)

Lift force is converted into mass: Y=Mg (lift force=mass×gravity coefficient)

Gravity coefficient g takes 9.8 m/ ^s2

Mass M=4670/9.8=476.5 (kg)=0.4765 (ton)

A single imitation wing can provide about 0.4765 tons of lift in this case.

The total mass M _total = 0.4765 × 12 = 5.72 (tons)

Therefore, 12 (6 groups) of imitation wings can provide about 5.72 tons of lift in this case.

Under this condition, the above-mentioned 12 (6 groups) of imitation wings are installed symmetrically and equidistantly on the left and right sides of the carriage of a high-speed rail train with a length of about 25 meters through the fixed base (see Figure 6). And the central transverse axes of the imitation wings symmetrically installed on the left and right sides of each group are on the same transverse axis. According to the calculation formula L=N×D+(N+1)×d, wherein the compartment length L=25 meters, N=6, and the horizontal length of the fixed base is 1 meter, then the imitation wing area installed on the side of the compartment The distance from the most frontal imitation wing to the front edge of the side of the compartment, the distance from the rearmost imitation wing to the rear edge of the side of the compartment that can be installed on the side of the compartment, and the distance from the rear end edge installed on the side of the compartment The distance (d) between the imitation wings of this compartment side all=2.7 meters.

The model of the aerodynamic levitation train with imitation wing on the side of the car body based on the high-speed railway with a scale of 1:80 is made for experiments. Please refer to Figure 6. The car body of the high-speed train is I, and the imitation wing II in the experiment The area of the model is 1/6400 of the real area; the speed of the model in the experiment is 50 m/s, which is 1/3 of the theoretical calculation; the lift coefficient at this time is about 0.5 according to the experiment. The experiment finally measured that under the action of the imitation wing, the total weight of the cabin was reduced by 0.468 Newton. According to theoretical calculation, the experimental theoretical value should be 4670×12/6400/9/2=0.486 (Newton), and then the lift force actually obtained is 96.3% of the theoretical value.

Example 4

The 8 (4 groups) of imitation wings prepared under the same conditions as in Example 1 are fixed on the side of a section through the fixed base symmetrically and equidistantly, and the length of the area where the imitation wings can be installed is about 20 meters. The side of the locomotive of the high-speed rail train, and the central transverse axes of the imitation wings symmetrically installed on the left and right sides of each group are on the same transverse axis (seeing Fig. 6). According to the calculation formula L=N×D+(N+1)×d, wherein the length L=20 meters of the side of the locomotive, N=4, and the horizontal length of the fixed base is 1 meter, then the imitation wing that can be installed on the side of the locomotive The distance from the frontmost imitation wing in the area to the front edge of the locomotive side, and the distance from the rearmost imitation wing installed in the area of the locomotive side where the imitation wing can be installed to the rear end edge of the locomotive side, and The distance (d) between the imitation wings installed on the locomotive side all=3.2 meters.

The model of the aerodynamic levitation train with imitation wing on the side of the car body based on the high-speed railway with a scale of 1:80 is made for experiments. Please refer to Figure 6. The car body of the high-speed train is I, and the imitation wing II in the experiment The area of the model is 1/6400 of the real area; the speed of the model in the experiment is 50 m/s, which is 1/3 of the theoretical calculation; the lift coefficient at this time is about 0.5 according to the experiment. The experiment finally measured that under the action of the imitated wing, the total weight of the locomotive was reduced by 1.32 Newtons. According to the theoretical calculation, the experimental theoretical value should be 20756.25×8/6400/9/2=1.44 (Newton), then the lift force actually obtained is 91.7% of the theoretical value.

Example 5

The 4 (2 groups) of imitation wings prepared under the same conditions as in Example 2 are fixed on the side of a section through the fixed base symmetrically and equidistantly, and the length of the area where the imitation wings can be installed is about 20 meters. The side of the locomotive of the high-speed rail train, and the central transverse axes of the imitation wings symmetrically installed on the left and right sides of each group are on the same transverse axis (seeing Fig. 6). According to the calculation formula L=N×D+(N+1)×d, wherein the length L=20 meters of the side of the locomotive, N=2, and the horizontal length of the fixed base is 1 meter, then the imitation wing that can be installed on the side of the locomotive The distance from the frontmost imitation wing in the area to the front edge of the locomotive side, and the distance from the rearmost imitation wing installed in the area of the locomotive side where the imitation wing can be installed to the rear end edge of the locomotive side, and The distance (d) between the imitation wings installed on the locomotive side all=6 meters.

The model of the aerodynamic levitation train with imitation wing on the side of the car body based on the high-speed railway with a scale of 1:80 is made for experiments. Please refer to Figure 6. The car body of the high-speed train is I, and the imitation wing II in the experiment The area of the model is 1/6400 of the real area; the speed of the model in the experiment is 50 m/s, which is 1/3 of the theoretical calculation; the lift coefficient at this time is about 0.5 according to the experiment. The experiment finally measured that under the action of the imitated wing, the total weight of the locomotive was reduced by 2.02 Newtons. According to theoretical calculation, the experimental theoretical value should be 62268.75*4/6400/9/2=2.16 (Newton), and then the lift force actually obtained is 93.5% of the theoretical value.

Example 6

The 12 (6 groups) of imitation wings prepared under the same conditions as in Example 3 are fixed on the side of a section through the fixed base symmetrically and equidistantly, and the length of the area where the imitation wings can be installed is about 20 meters. The side of the locomotive of the high-speed rail train, and the central transverse axes of the imitation wings symmetrically installed on the left and right sides of each group are on the same transverse axis (seeing Fig. 6). According to the calculation formula L=N×D+(N+1)×d, wherein the length L=20 meters of the side of the locomotive, N=6, and the horizontal length of the fixed base is 1 meter, then the imitation wing that can be installed on the side of the locomotive The distance from the frontmost imitation wing in the area to the front edge of the locomotive side, and the distance from the rearmost imitation wing installed in the area of the locomotive side where the imitation wing can be installed to the rear end edge of the locomotive side, and The distance (d) between the imitation wings installed on the side of the locomotive all=2 meters.

The model of the aerodynamic levitation train with imitation wing on the side of the car body based on the high-speed railway with a scale of 1:80 is made for experiments. Please refer to Figure 6. The car body of the high-speed train is I, and the imitation wing II in the experiment The area of the model is 1/6400 of the real area; the speed of the model in the experiment is 50 m/s, which is 1/3 of the theoretical calculation; the lift coefficient at this time is about 0.5 according to the experiment. The experiment finally measured that under the action of the imitation wing, the total weight loss of the locomotive was 0.461 Newton. According to theoretical calculation, the experimental theoretical value should be 4670×12/6400/9/2=0.486 (Newton), and then the lift force actually obtained is 94.8% of the theoretical value.

Claims (12)

1. A kind of aerodynamic suspension train with imitation wing on the car body side based on high-speed railway, it is characterized in that: the aerodynamic suspension train that the described car body side has imitation wing is on the left and right sides of the locomotive of train The side and the left and right sides of each compartment are respectively symmetrically equipped with imitation wings imitating the wing structure of the aircraft. 2. The aerodynamic suspension train with imitated wings on the side of the car body based on high-speed railway according to claim 1 is characterized in that: the sum of the imitated wings symmetrically installed on the left and right sides of the locomotive of the train The number is 4 or more; The total number of imitation wings symmetrically installed on the left and right sides of each carriage is more than four. 3. The aerodynamic suspension train with imitation wings on the side of the car body based on high-speed railway according to claim 1 or 2, characterized in that: the number of imitation wings installed on each carriage is the same. 4. The aerodynamic suspension train with imitated wings on the side of the car body based on high-speed railway according to claim 2 is characterized in that: the imitated wings installed symmetrically on the left and right sides of the locomotive are installed on each side The imitation wings are all installed on the side of the locomotive in an equidistant installation manner, and the central transverse axis of each group of imitation wings installed symmetrically on the left and right sides is on the same transverse axis; The imitation wings installed symmetrically on the left and right sides of each carriage, the imitation wings installed on each side are installed on the sides of each carriage in an equidistant installation manner, and each group of left and right sides is symmetrical The central transverse axis of the installed imitation wing is on the same transverse axis. 5. The aerodynamic suspension train with imitated wings on the side of the car body based on high-speed railway according to claim 4 is characterized in that: the equidistant installation method of the imitated wings installed on the side of the locomotive, It is the distance from the most frontal imitation wing installed on the side of the locomotive to the front end edge of the locomotive side, and the distance from the rearmost imitation wing installed on the side of the locomotive to the front end of the area where the imitation wing can be installed. the same distance from the rear end edge of the side of the locomotive as it is from the imitation wing fitted to the side of the locomotive; The equidistant installation method of the imitation wing installed on the side of each compartment is the distance from the front edge of the imitation wing area that can be installed on the side of the compartment to the front edge of the compartment side. , the distance from the rear end edge of the compartment side to the rear edge of the compartment side, and the distance between the imitation wings installed on the compartment side. 6. According to claim 1, 2, 4 or 5, the aerodynamic suspension train with imitation wings on the side of the car body based on high-speed railway is characterized in that: the structure of the imitation wings is mainly composed of a fixed base It is composed of a horizontal wing fixed thereon, one side of the fixed base is connected with the horizontal wing, and the other side is installed on the side of the locomotive or carriage; the horizontal wing and the fixed base form a 90-degree right angle. 7. The aerodynamic suspension train with imitation wings on the side of the car body based on high-speed railway according to claim 6 is characterized in that: the upper edge of the horizontal wing of the imitation wings installed on the side of the locomotive is the highest point The distance from the bottom of the locomotive is 40-70 cm; The highest point of the upper edge of the wing-like horizontal wing installed on the side of the compartment is 40-70 cm away from the bottom of the compartment. 8. The aerodynamic suspension train based on the high-speed railway car body side with imitated wings according to claim 6, characterized in that: the overall structure of the horizontal wing is streamlined, with an angle of attack and a leading edge swept back angle and trailing edge sweep angle; an artificial spoiler structure is arranged on the leading edge of the horizontal wing; a trailing edge flap is installed on the trailing edge of the horizontal wing. 9. The aerodynamic suspension train based on high-speed railway car body side with imitation wing according to claim 8, characterized in that: the trailing edge flap is a trailing edge double slit flap or a trailing edge single slit flaps. 10. The aerodynamic levitation train based on the high-speed railway according to claim 8, characterized in that: the artificial spoiler structure provided on the leading edge of the horizontal wing is the following six types One: (a) increase the roughness at the leading edge of the upper surface of the horizontal wing; (b) add a protruding spoiler strip near the leading edge of the upper surface of the horizontal wing; At the leading edge of the spread, a row of spoiler holes with a diameter of 3 to 5 cm and a depth of no more than 2 cm is vertically opened every 5 cm; (d) an elastic flow-around belt is attached in front of the leading edge of the horizontal wing (e) add dotted-line distribution at the leading edge of the horizontal wing, each 0<diameter<5 centimeters, and a block-shaped protruding spoiler with a spacing of 7 to 15 centimeters; (f) add an additional Raised spoiler strips, spoiler holes or elastic wraparound strips in the shape of zigzags. 11. According to claim 7, 8, 9 or 10, the aerodynamic suspension train with imitation wings on the side of the car body based on high-speed railway is characterized in that: the horizontal wing is a flat-shaped wing, and its flat-shaped The profile of the wing is selected from one of a flat profile, a typical bird wing profile, a slightly flat wing profile with an upper arch, and an airfoil profile with symmetrical upper and lower wing surfaces. 12. The high-speed railway-based aerodynamic suspension train with imitated wings on the side of the car body according to claim 11, characterized in that: the length of the horizontal wings is 150-225 cm, and the root-to-tip ratio is 0.5-225 cm. 1. The area is 1.125 to 2.25 square meters, the leading edge sweep angle is 0 to 26.5 degrees, the trailing edge sweep angle is -26.5 to 0 degrees, and the attack angle is 0 to 15 degrees.

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