Bird wing flight lift force simulation test device

Abstract

The utility model discloses a bird wing flight lift force simulation test device which comprises a bird wing model, pressure detection parts are sequentially arranged on the upper surface and the lower surface, facing airflow, of the bird wing model respectively in the advancing direction of the airflow, and pressure indication parts are arranged at the positions, corresponding to the pressure detection parts, of the bird wing model. The pressure detection parts are connected with the pressure indication parts, and the pressure indication parts display air pressure values detected by the corresponding pressure detection parts; the surface of the bird wing model is also provided with a flow velocity display part at a position corresponding to each pressure detection part, and the airflow pushes the flow velocity display part to display the corresponding flow velocity. The pressure detection component, the pressure indication component and the flow velocity display component are arranged, so that the change rule of pressure and flow velocity at each position can be visually seen in the experiment process; a pressure detection part and a flow velocity display part are arranged at the upper and lower positions of the bird wing model, so that the reason of lift force generation can be learned conveniently.

Description

Technical Field

[0001] This utility model relates to the field of physical simulation testing technology. Specifically, it relates to a bird wing flight lift simulation testing device. Background Technology

[0002] Modern aircraft design is inspired by bird flight, and the principle behind lift generation is Bernoulli's principle, which describes the relationship between fluid velocity and pressure. While many existing technologies can demonstrate lift by using fans to move models, they don't provide a direct visual representation of the changes in velocity and pressure at different points on the model, hindering a deeper understanding and learning of Bernoulli's principle. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to provide a bird wing flight lift simulation test device that can intuitively show the flow velocity and pressure change patterns at various locations of the model.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bird wing flight lift simulation test device, comprising a bird wing model with a cross-sectional shape similar to that of a bird wing. Pressure detection components are sequentially arranged along the airflow direction on the upper and lower surfaces of the bird wing model facing the airflow. A pressure indicator component is installed on the bird wing model at a position corresponding to each pressure detection component. The pressure detection components are connected to the pressure indicator components, and the pressure indicator components display the air pressure value detected by the corresponding pressure detection component. A flow velocity display component is also installed on the surface of the bird wing model at a position corresponding to each pressure detection component. The airflow pushes the flow velocity display component to display the corresponding flow velocity. By setting up pressure detection components, pressure indicator components, and flow velocity display components, the changes in pressure and flow velocity at various locations can be visually observed during the experiment.

[0005] In the aforementioned bird wing flight lift simulation test device, one pressure detection component and one corresponding flow velocity display component are both arranged on a horizontal straight line perpendicular to the direction of airflow. The pressure indicator component and the pressure detection component are also located on the same horizontal straight line. By setting a set of flow velocity and pressure detection components at each horizontal position, flow velocity and pressure can be detected and compared at the same location, which is beneficial for exploring the relationship between flow velocity and pressure.

[0006] The aforementioned bird wing flight lift simulation test device includes an outer cylinder and a rubber diaphragm in the pressure detection component. The outer cylinder is fixedly installed inside the bird wing model, and the opening of the outer cylinder is flush with the surface of the bird wing model. The rubber diaphragm is sealed and attached to the opening of the outer cylinder. The outer cylinder is filled with atmospheric pressure air. The outer cylinder is in fluid communication with the pressure indicator component through an air pipe.

[0007] The aforementioned bird wing flight lift simulation test device includes a pressure indicating component comprising a housing, an indicator plate, and a slider. The slider is slidably fitted within the housing. A viewing window is provided on the side wall of one end of the housing. The indicator plate is slidably installed within the housing, with one end connected to the slider. A telescopic hose is installed within the housing, with one end fixedly connected to the slider and the other end fixedly connected to the inner wall of the housing. The telescopic hose is fluidly connected to the outer cylinder via an air pipe. When the telescopic hose extends or retracts, it drives the indicator plate to move within the viewing window area via the slider.

[0008] In the aforementioned bird wing flight lift simulation test device, different markings are sequentially arranged on the side wall of the indicator plate facing the viewing window along the direction of movement of the indicator plate.

[0009] The aforementioned bird wing flight lift simulation test device includes a flow rate display component comprising a detection plate, a hinge seat, a display plate, and a cover plate. An installation opening is provided on the surface of the bird wing model. The detection plate passes through the installation opening on the surface of the bird wing model. The first end of the detection plate is located outside the bird wing model, and the second end of the detection plate is located inside the bird wing model. A hinge seat is installed on the inner wall of the bird wing model. The side wall of the detection plate is rotatably connected to the hinge seat via a pivot. A spring clip is installed between the second end of the detection plate and the inner wall of the bird wing model. A groove is provided on the surface of the bird wing model, and the display plate slides within the groove. A cover plate with a length shorter than the groove is placed over the groove. A connecting rod is rotatably connected to the second end of the detection plate, and the other end of the connecting rod is rotatably connected to the bottom of the display plate.

[0010] The aforementioned bird wing flight lift simulation test device has different markings arranged sequentially along its direction of motion on the display panel.

[0011] The aforementioned bird wing flight lift simulation test device also includes a base plate, a wind guide plate, and a guide rod. The wind guide plate is installed on both sides of the base plate surface, and the guide rod is vertically fixed on the middle of the base plate surface. A sliding hole is provided through the bird wing model along its thickness direction, and the bird wing model is slidably fitted on the guide rod.

[0012] In the aforementioned bird wing flight lift simulation test device, a fan is installed at one end of the base plate between two air guide plates, and the fan delivers high-speed airflow between the two air guide plates.

[0013] The aforementioned bird wing flight lift simulation test device includes a counterweight component on the wind guide plate. This counterweight component comprises a guide wheel, a connecting rope, and a counterweight block. The guide wheel is mounted on the top of the wind guide plate. One end of the connecting rope is connected to the bird wing model, and the other end of the rope, after passing over the guide wheel, is connected to the counterweight block. By using the counterweight component to balance the weight of the bird wing model, experiments can be conducted with relatively low wind speeds.

[0014] The technical solution of this utility model has achieved the following beneficial technical effects:

[0015] By setting up pressure detection components, pressure indicator components, and flow velocity display components, the changes in pressure and flow velocity at various locations can be visually observed during the experiment. Arranging pressure indicator components and flow velocity display components at the same lateral position facilitates the investigation of the relationship between flow velocity and pressure at the same location. By setting pressure detection components and flow velocity display components at the top and bottom positions of the bird wing model, it is easier to learn the cause of lift generation. Attached Figure Description

[0016] Figure 1 A front sectional view of the present invention;

[0017] Figure 2 A side view of the bird wing model of this utility model;

[0018] Figure 3 A top view structural diagram of the bird wing model of this utility model;

[0019] Figure 4 A schematic diagram showing the connection between the pressure detection component and the pressure indication component of this utility model;

[0020] Figure 5 A three-dimensional structural diagram of the flow rate display component of this utility model.

[0021] The reference numerals in the figure are as follows: 1-Bird wing model; 2-Pressure indicator component; 21-Outer shell; 22-Viewing window; 23-Indicator plate; 24-Slider; 25-Telescopic hose; 3-Flow rate display component; 31-Detection plate; 32-Hinge seat; 33-Groove; 34-Display plate; 35-Cover plate; 36-Connecting rod; 4-Pressure detection component; 41-Outer cylinder; 42-Rubber diaphragm; 5-Counterweight component; 51-Guide wheel; 52-Connecting rope; 53-Counterweight block; 6-Fan; 7-Guide rod; 8-Base plate; 9-Air guide plate. Detailed Implementation

[0022] The bird wing flight lift simulation test device in this embodiment, such as Figure 1-2As shown, the device includes a bird wing model 1 with a cross-sectional shape similar to that of a bird wing. Pressure detection components 4 are arranged sequentially along the airflow direction on the upper and lower surfaces of the bird wing model 1 facing the airflow. A pressure indicator component 2 is positioned on the bird wing model 1 corresponding to each pressure detection component 4. The pressure detection components 4 are connected to the pressure indicator component 2, and the pressure indicator component 2 displays the air pressure value detected by the corresponding pressure detection component 4. A flow velocity display component 3 is also installed on the surface of the bird wing model 1 at a position corresponding to each pressure detection component 4. The airflow pushes the flow velocity display component 3 to display the corresponding flow velocity, such as... Figure 2-3 As shown, the corresponding pressure detection component 4, flow rate display component 3, and pressure indicator component 2 are arranged sequentially on a horizontal straight line perpendicular to the direction of airflow.

[0023] like Figure 1 As shown, the experimental apparatus also includes a base plate 8, air guide plates 9, and guide rods 7. Air guide plates 9 are installed on both sides of the surface of the base plate 8. The guide rods 7 are vertically fixed on the middle of the surface of the base plate 8. A sliding hole is opened through the bird wing model 1 along its thickness direction, and the bird wing model 1 is slidably fitted onto the guide rods 7. A fan 6 is installed at one end of the base plate 8, located between the two air guide plates 9. The fan 6 delivers high-speed airflow between the two air guide plates 9. After the airflow output by the fan 6 blows onto the bird wing model 1, the bird wing model 1 moves under the action of the airflow.

[0024] like Figure 1 As shown, a counterweight component 5 is further provided on the air guide plate 9. The counterweight component 5 includes a guide wheel 51, a connecting rope 52, and a counterweight block 53. The guide wheel 51 is installed on the top of the air guide plate 9. One end of the connecting rope 52 is connected to the bird wing model 1, and the other end of the connecting rope 52 is connected to the counterweight block 53 after passing around the guide wheel 51. The counterweight block 53 is used to balance the weight of the bird wing model 1 and related components, so that the fan 6 can reduce the output power.

[0025] like Figure 4 As shown, the pressure detection component 4 includes an outer cylinder 41 and a rubber diaphragm 42. The outer cylinder 41 is fixedly installed inside the bird wing model 1, and the opening of the outer cylinder 41 is flush with the surface of the bird wing model 1. The rubber diaphragm 42 is sealed and attached to the opening of the outer cylinder 41. The outer cylinder 41 is filled with atmospheric pressure air. The outer cylinder 41 is fluidly connected to the pressure indicator component 2 through an air pipe.

[0026] like Figure 4As shown, the pressure indicating component 2 includes a housing 21, an indicator plate 23, and a slider 24. The slider 24 is slidably fitted inside the housing 21. A viewing window 22 is provided on the side wall of one end of the housing 21. The indicator plate 23 is slidably installed inside the housing 21, and one end of the indicator plate 23 is connected to the slider 24. A telescopic hose 25 is installed inside the housing 21. One end of the telescopic hose 25 is fixedly connected to the slider 24, and the other end of the telescopic hose 25 is fixedly connected to the inner wall of the housing 21. The telescopic hose 25 is fluid-conducting through an air pipe and an outer cylinder 41. The telescopic hose 25 has a surface with... A corrugated hose, or a similar hose, extends under pressure when it increases and contracts under pressure when it decreases. When the telescopic hose 25 extends or contracts, it drives the indicator plate 23 to move within the viewing window 22 via the slider 24. Different markings are sequentially arranged on the side wall of the indicator plate 23 facing the viewing window 22 along the direction of movement of the indicator plate 23. The markings on the indicator plate 23 are sequentially colored, thus displaying different pressure values ​​with different colors. Numerical markings can also be used to improve the accuracy of identification. The pressure on the surface of the bird wing model 1 changes compared to normal air pressure due to the influence of different airflow velocities. Specifically, the pressure on the outside of the rubber diaphragm 42 decreases, causing the rubber diaphragm 42 to bulge outwards. The pressure inside the outer cylinder 41 and the telescopic hose 25 decreases, causing the telescopic hose 25 to contract, driving the slider 24 and the indicator plate 23 to move and display different colors, thus quickly identifying the pressure state.

[0027] like Figure 5 As shown, the flow rate display component 3 includes a detection plate 31, a hinge seat 32, a display plate 34, and a cover plate 35. An installation port is provided on the surface of the bird wing model 1. The detection plate 31 passes through the installation port on the surface of the bird wing model 1. The first end of the detection plate 31 is located outside the bird wing model 1, and the second end of the detection plate 31 is located inside the bird wing model 1. The hinge seat 32 is installed on the inner wall of the bird wing model 1. The side wall of the detection plate 31 is rotatably connected to the hinge seat 32 via a pivot. A spring is installed between the second end of the detection plate 31 and the inner wall of the bird wing model 1. A groove 33 is provided on the surface of the bird wing model 1. The display plate 34 slides within the groove 33. A cover plate 35, shorter than the length of the groove 33, covers the groove 33. A connecting rod 36 is rotatably connected to the second end of the detection plate 31. The other end of the connecting rod 36 is rotatably connected to the bottom of the display plate 34. Different markings are sequentially arranged on the display plate 34 along its direction of movement. The colors on the display plate 34 can also be sequentially gradient colors or numerical values.

[0028] The working principle of the flow rate display component 3 is as follows: after the airflow blows towards the first end of the detection plate 31, the detection plate 31 tends to rotate under the push of the airflow, thereby compressing the spring sheet and using the connecting rod 36 to push the display plate 34 to slide along the groove 33, so that the display plate 34 extends out from under the cover plate 35. With the help of different colored markings, the flow rate at the current position point can be quickly identified.

[0029] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A bird wing flight lift simulation test device, comprising a bird wing model (1) with a cross-sectional shape similar to that of a bird wing, characterized in that, Pressure detection components (4) are arranged sequentially on the upper and lower surfaces of the bird wing model (1) facing the airflow along the direction of airflow. A pressure indicator component (2) is provided on the bird wing model (1) at a position corresponding to each pressure detection component (4). The pressure detection component (4) is connected to the pressure indicator component (2), and the pressure indicator component (2) displays the air pressure value detected by the corresponding pressure detection component (4). A flow velocity display component (3) is also installed on the surface of the bird wing model (1) at a position corresponding to each pressure detection component (4). The airflow pushes the flow velocity display component (3) to display the corresponding flow velocity.

2. The bird wing flight lift simulation test device according to claim 1, characterized in that, One of the pressure detection components (4) and the corresponding flow rate display component (3) are arranged on a horizontal straight line perpendicular to the direction of airflow. The pressure indicator component (2) and the pressure detection component (4) are also located on the same horizontal straight line.

3. The bird wing flight lift simulation test device according to claim 1, characterized in that, The pressure detection component (4) includes an outer cylinder (41) and a rubber diaphragm (42). The outer cylinder (41) is fixedly installed inside the bird wing model (1), and the opening of the outer cylinder (41) is flush with the surface of the bird wing model (1). The rubber diaphragm (42) is sealed and attached to the opening of the outer cylinder (41). The outer cylinder (41) is filled with atmospheric pressure air. The outer cylinder (41) is fluidly connected to the pressure indicator component (2) through an air pipe.

4. The bird wing flight lift simulation test device according to claim 3, characterized in that, The pressure indicating component (2) includes a housing (21), an indicator plate (23), and a slider (24). The slider (24) is slidably fitted inside the housing (21). A viewing window (22) is provided on the side wall of one end of the housing (21). The indicator plate (23) is slidably installed inside the housing (21). One end of the indicator plate (23) is connected to the slider (24). A telescopic hose (25) is installed inside the housing (21). One end of the telescopic hose (25) is fixedly connected to the slider (24), and the other end of the telescopic hose (25) is fixedly connected to the inner wall of the housing (21). The telescopic hose (25) is fluidly connected to the outer cylinder (41) through an air pipe. When the telescopic hose (25) extends or retracts, it drives the indicator plate (23) to move within the range of the viewing window (22) through the slider (24).

5. The bird wing flight lift simulation test device according to claim 4, characterized in that, Different markings are sequentially arranged on the side wall of the indicator plate (23) facing the window (22) along the direction of movement of the indicator plate (23).

6. The bird wing flight lift simulation test device according to claim 1, characterized in that, The flow rate display component (3) includes a detection plate (31), a hinge seat (32), a display plate (34), and a cover plate (35). An installation port is provided on the surface of the bird wing model (1). The detection plate (31) passes through the installation port on the surface of the bird wing model (1). The first end of the detection plate (31) is located outside the bird wing model (1), and the second end of the detection plate (31) is located inside the bird wing model (1). A hinge seat (32) is installed on the inner wall of the bird wing model (1). The side wall of the detection plate (31) is connected to the hinge via a pivot. The connector (32) is rotatably connected, and a spring is installed between the second end of the detection plate (31) and the inner wall of the bird wing model (1); a groove (33) is opened on the surface of the bird wing model (1), and the display plate (34) is slidably fitted in the groove (33). A cover plate (35) with a length less than the length of the groove (33) is covered on the groove (33). A connecting rod (36) is rotatably connected to the second end of the detection plate (31), and the other end of the connecting rod (36) is rotatably connected to the bottom of the display plate (34).

7. The bird wing flight lift simulation test device according to claim 6, characterized in that, Different markings are sequentially arranged on the display panel (34) along its direction of movement.

8. The bird wing flight lift simulation test device according to claim 1, characterized in that, It also includes a base plate (8), a wind guide plate (9) and a guide rod (7). The wind guide plate (9) is installed on both sides of the surface of the base plate (8). The guide rod (7) is vertically fixed on the middle part of the surface of the base plate (8). A sliding hole is opened through the bird wing model (1) along its thickness direction. The bird wing model (1) is slidably fitted on the guide rod (7).

9. The bird wing flight lift simulation test device according to claim 8, characterized in that, A fan (6) is provided at one end of the base plate (8) between two air guide plates (9), and the fan (6) delivers high-speed airflow between the two air guide plates (9).

10. The bird wing flight lift simulation test device according to claim 9, characterized in that, The air guide plate (9) is provided with a counterweight component (5), which includes a guide wheel (51), a connecting rope (52) and a counterweight block (53). The guide wheel (51) is installed on the top of the air guide plate (9). One end of the connecting rope (52) is connected to the bird wing model (1), and the other end of the connecting rope (52) is connected to the counterweight block (53) after passing around the guide wheel (51).

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