Air-ground dual-purpose vehicle wind noise testing device and testing method
By designing an automatic clamping system and an acoustic cabin, the problems of cumbersome operation and versatility of the wind noise testing device for land and air vehicles were solved, achieving high-precision, low-interference wind noise testing results.
Patent Information
- Application Number
- CN202510883101.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-28
- Publication Date
- 2025-09-12
AI Technical Summary
The existing wind noise testing device for land and air vehicles has the following problems: cumbersome operation, low positioning accuracy, limited adjustment range of the clamping mechanism, poor versatility, and the test environment is susceptible to external noise and electromagnetic interference, which affects the accuracy of the test results.
A wind noise testing device was designed, which includes a protective component, a hydraulic rod, an electromagnetic shielding layer and a sound-absorbing layer. Through an automatic clamping system and an acoustic cabin, it can achieve rapid positioning, smooth adjustment and high-precision testing to prevent external interference.
It achieves fast and safe clamping and positioning, enhances the versatility and test accuracy of the device, reduces noise reflectivity, and ensures the accuracy of test results and environmental cleanliness.
Smart Images
Figure CN120628528A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of wind noise testing in an acoustic wind tunnel, and in particular to a wind noise testing device and a testing method for a land-air dual-purpose vehicle. Background Art
[0002] Land-and-air vehicles, also commonly referred to as flying cars, are a new type of transportation that combines ground travel and aerial flight capabilities. Their technological development and market application are rapidly developing. Among their various performance indicators, acoustic quality, particularly wind noise levels, is a key factor that directly impacts user comfort, regulatory compliance, and product competitiveness. Therefore, accurate and reliable wind noise testing for land-and-air vehicles is an essential component of their development and production processes.
[0003] However, when conducting wind noise testing on a flying car, it must first be securely positioned on the test bench. Existing fixing methods often suffer from cumbersome operation and low positioning accuracy. Traditional clamping devices often rely on manual adjustment or simple semi-automatic methods, which are not only time-consuming and labor-intensive, but also struggle to ensure uniform and reliable clamping force. Furthermore, with the advancement of amphibious vehicle technology, their models and sizes are becoming increasingly diverse. Existing test benches are often designed for specific vehicle models, with a limited adjustment range for their clamping mechanisms and limited versatility. Testing flying cars of varying sizes often requires complex equipment reconfiguration or even component replacement, significantly reducing testing efficiency and increasing testing costs. Furthermore, wind noise testing itself places extremely stringent demands on the cleanliness of the acoustic environment. Existing testing environments, whether general-purpose laboratories or simple anechoic chambers, are generally not optimized for the specific requirements of flying car wind noise testing. On the one hand, these environments are easily interfered with by external environmental noise and electromagnetic signals from equipment operation, which contaminates the collected acoustic data; on the other hand, the problem of sound wave reflection inside the test space is also very prominent. The reverberation sound will be superimposed on the target wind noise source, making the test results unable to truly reflect the aerodynamic acoustic characteristics of the flying car itself. Summary of the Invention
[0004] The purpose of this application is to provide a wind noise testing device for land and air vehicles, aiming to improve the problems in the prior art such as complicated operation, low positioning accuracy, limited adjustment range of its clamping mechanism, and poor versatility.
[0005] The present application provides a wind noise test device for a land and air dual-purpose vehicle, comprising a workbench, a front side of the workbench being fixedly connected to a protective assembly, the protective assembly being used to better protect the test environment, an upper side of the workbench being provided with a groove, the interior of the groove being slidably connected to a bottom plate, an upper right side of the bottom plate being fixedly connected to a push rod, an output end of the push rod being fixedly connected to a push block, a lower side of the push block being fixedly connected to a connecting block, an upper side of the connecting block being fixedly connected to a first connecting plate, an upper side of the first connecting plate being rotatably connected to a first rotating plate, and a front side of the first rotating plate being rotated The cam is connected to a second rotating plate, the second rotating plate is fixedly connected to both sides of the rotating block, the rotating block is rotatably connected to the upper side of the bottom plate, the upper side of the second rotating plate is rotatably connected to the third rotating plate, the third rotating plate is rotatably connected to the upper side of the second connecting plate, the upper sides of the first connecting plate and the second connecting plate are fixedly connected to the clamping plates on both sides, the adjacent sides of the clamping plates are provided with anti-slip grooves, the lower sides of the first connecting plate and the second connecting plate are fixedly connected to the limiting frame, the limiting frame is slidably connected to the upper side of the limiting bar, and the limiting bar is fixedly connected to the upper four corners of the bottom plate.
[0006] Preferably, the protective component includes a control panel, which is fixedly connected to the front side of the workbench, an acoustic cabin is fixedly connected to the upper side of the workbench, a cover is rotatably connected to the upper side of the acoustic cabin, a perspective window is fixedly connected to the inside of the cover, and a perspective window is fixedly connected to the front side of the acoustic cabin.
[0007] Preferably, the inner sides of the groove are fixedly connected with fixed rods, the outer sides of the fixed rods are slidably connected with sliding blocks, the lower side of the sliding block is fixedly connected with a limiting block, the inner four corners of the groove are fixedly connected with hydraulic rods, the output end of the hydraulic rod is fixedly connected with a support block, the support block is fixedly connected to the side away from the sliding block, and the outer sides of the fixed rods are sleeved with adjustment components, and the adjustment components are used to adjust the use position of the clamping component.
[0008] Preferably, the inner sides of the groove are fixedly connected with fixed rods, the outer sides of the fixed rods are slidably connected with sliding blocks, the lower side of the sliding block is fixedly connected with a limiting block, the inner four corners of the groove are fixedly connected with hydraulic rods, the output end of the hydraulic rod is fixedly connected with a support block, the support block is fixedly connected to the side away from the sliding block, and the outer sides of the fixed rods are sleeved with adjustment components, and the adjustment components are used to adjust the use position of the clamping component.
[0009] Preferably, an electromagnetic shielding layer is fixedly connected to the interior of the acoustic cabin, a sound-absorbing layer is fixedly connected to the interior of the electromagnetic shielding layer, a vent is opened on the left side of the acoustic cabin, a support frame is fixedly connected to the left side of the acoustic cabin, and the interior of the support frame is rotatably connected with evenly distributed test components, and the test components are used for wind noise testing of flying cars and aircraft.
[0010] Preferably, the test assembly includes a rotating shaft, which is rotatably connected to the inside of the support frame, an adjustment plate is fixedly connected to the outside of the rotating shaft, a test bench is fixedly connected to the upper side of the workbench, a flying car is placed on the upper side of the test bench, and evenly distributed acoustic sensors are fixedly connected to the outside of the flying car.
[0011] Preferably, evenly distributed through slots are provided inside the test bench, and the clamping plates are slidably connected inside the through slots.
[0012] Preferably, a connecting groove is provided inside the bottom plate, and the connecting block is slidably connected inside the connecting groove.
[0013] Preferably, the four lower corners of the groove are each provided with a limiting groove, and the limiting block is slidably connected inside the limiting groove.
[0014] A method for testing wind noise of a land-air vehicle comprises the following steps: S1. First, the push rod is activated, which drives the push block and the first connecting plate to move. The movement of the first connecting plate drives the first rotating plate, the second rotating plate, the rotating block, and the third rotating plate to rotate. The rotation of the third rotating plate drives the second connecting plate to move. The movement of the first and second connecting plates drives the clamping plate to move. The anti-slip grooves provided improve the stability of the clamping, thereby clamping and fixing the flying car. S2. Then, the hydraulic rod is activated, which drives the support block and the sliding block to move, causing the sliding block to slide outside the fixed rod, thereby stretching the spring. At the same time, the movement of the sliding block drives the first adapter block, the support rod, the second adapter block and the bottom plate to move, thereby adjusting the use position of the clamping assembly; S3. Finally, an electromagnetic shielding layer is provided to prevent external electromagnetic interference, a sound-absorbing layer is provided to reduce noise reflectivity, and the rotating shaft is driven to rotate inside the support frame by rotating the adjustment plate to adjust the airflow entering the vent. The acoustic sensor is provided to collect wind noise data generated on the vehicle body, so that the device has an acoustic cabin with a good test environment, good test results and high accuracy.
[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. The present invention activates the push rod by activating the control panel, which in turn drives the push block and the first connecting plate to move. The movement of the first connecting plate drives the first rotating plate, the second rotating plate, the rotating block, and the third rotating plate to rotate. The rotation of the third rotating plate drives the second connecting plate to move. The movement of the first and second connecting plates drives the clamping plate to move. The anti-slip grooves provided improve the stability of the clamping mechanism, thereby clamping and fixing the flying car on the upper side of the test bench. This allows for rapid and automatic clamping and positioning of the flying car, effectively preventing the flying car from sliding under test conditions such as vibration, and ensuring the safety of the entire test process and the accuracy of the test results. 2. The present invention activates the hydraulic rod by activating the control panel. The hydraulic rod activates the support block, which in turn drives the sliding block to slide outside the fixed rod, thereby stretching the spring. The sliding block moves the first adapter block, the support rod, the second adapter block, and the base plate, causing the base plate to slide within the groove, thereby driving the clamping assembly to move. This achieves smooth and labor-saving overall position adjustment of the entire clamping assembly, can easily adapt to flying cars of different sizes or models, and greatly enhances the versatility and applicability of the test bench. 3. The present invention uses an electromagnetic shielding layer to prevent external electromagnetic interference, and a sound-absorbing layer to reduce noise reflectivity, ensuring that test noise is not interfered with. The manual rotation of the adjustment plate drives the rotating shaft to rotate inside the support frame to adjust the airflow entering the vent. The acoustic sensor is provided to collect wind noise data generated on the vehicle body, enabling the device to have an acoustic cabin with a good test environment. It is specially used for wind noise testing of flying cars and aircraft, with good test results and high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a perspective view of a wind noise testing device for a land and air vehicle according to the present application; Figure 2 This is a schematic diagram of the internal structure of a wind noise testing device for a land and air vehicle according to the present application; Figure 3 This is a cross-sectional view of a wind noise testing device for a land and air vehicle according to the present application; Figure 4 This is a schematic diagram of the internal structure of a support frame of a wind noise test device for a land and air vehicle of the present application; Figure 5 This is a schematic diagram of the structure of a clamping assembly of a wind noise test device for a land and air vehicle of the present application; Figure 6 This is a schematic diagram of the structure of the adjustment components of a wind noise testing device for a land and air vehicle of the present application.
[0017] Explanation of Reference Numerals: 1. workbench; 2. control panel; 3. acoustic cabin; 4. cover plate; 5. perspective window; 6. electromagnetic shielding layer; 7. sound-absorbing layer; 8. vent; 9. support frame; 10. rotating shaft; 11. adjustment plate; 12. test bench; 13. flying car; 14. acoustic sensor; 15. groove; 16. bottom plate; 17. push rod; 18. push block; 19. connecting block; 20. connecting groove; 21. first connecting plate; 22. Clamping plate; 23. Anti-slip groove; 24. Limiting frame; 25. Limiting bar; 26. First rotating plate; 27. Second rotating plate; 28. Rotating block; 29. Third rotating plate; 30. Second connecting plate; 31. Through groove; 32. Fixed rod; 33. Sliding block; 34. Limiting block; 35. Limiting groove; 36. Hydraulic rod; 37. Support block; 38. Spring; 39. First transfer block; 40. Support rod; 41. Second transfer block. DETAILED DESCRIPTION
[0018] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.
[0019] Example: Reference Figure 1 、 Figure 2 、 Figure 5 A wind noise test device for a land and air dual-purpose vehicle comprises a workbench 1, a protective component is fixedly connected to the front side of the workbench 1, and the protective component is used to better protect the test environment. A groove 15 is opened on the upper side of the workbench 1, and a bottom plate 16 is slidably connected inside the groove 15. A push rod 17 is fixedly connected to the right side of the upper part of the bottom plate 16, and the output end of the push rod 17 is fixedly connected to a push block 18. The lower side of the push block 18 is fixedly connected to a connecting block 19, and the upper side of the connecting block 19 is fixedly connected to a first connecting plate 21. The upper side of the first connecting plate 21 is rotatably connected to a first rotating plate 26, and the front side of the first rotating plate 26 is rotatably connected to a second rotating plate 27. The second rotating plate 27 is fixedly connected to both sides of a rotating block 28. The rotating block 28 is rotatably connected to the upper side of the bottom plate 16. The second rotating plate 27 The upper side is rotatably connected to the third rotating plate 29, and the third rotating plate 29 is rotatably connected to the upper side of the second connecting plate 30. The upper sides of the first connecting plate 21 and the second connecting plate 30 are fixedly connected with the clamping plates 22, and the adjacent side of the clamping plates 22 is provided with an anti-slip groove 23. The lower sides of the first connecting plate 21 and the second connecting plate 30 are fixedly connected with the limiting frame 24, and the limiting frame 24 is slidably connected to the upper side of the limiting bar 25, and the limiting bar 25 is fixedly connected to the upper four corners of the bottom plate 16; the protective component includes a control panel 2, which is fixedly connected to the front side of the workbench 1, and the upper side of the workbench 1 is fixedly connected with an acoustic cabin 3, and the upper side of the acoustic cabin 3 is rotatably connected with a cover plate 4, and the inside of the cover plate 4 is fixedly connected with a perspective window 5, and the front side of the acoustic cabin 3 is fixedly connected with a perspective window 5.
[0020] When using the device, first open the cover 4, place the flying car 13 on the upper side of the test bench 12, and manually open the control panel 2. The control panel 2 starts to drive the push rod 17 to start, and the push rod 17 starts to drive the push block 18 to move. The push block 18 moves and drives the first connecting plate 21 to move. At the same time, the push block 18 moves and drives the connecting block 19 to slide inside the connecting groove 20. The movement of the first connecting plate 21 drives the first rotating plate 26 to rotate. The rotation of the first rotating plate 26 drives the second rotating plate 27 to rotate. The rotation of the second rotating plate 27 drives the rotating block 28 to rotate, and then drives the second rotating plate 27 on the other side to rotate. The rotation of the second rotating plate 27 drives the third rotating plate 29 rotates, the third rotating plate 29 rotates to drive the second connecting plate 30 to move, the first connecting plate 21 and the second connecting plate 30 move and drive the clamping plate 22 to move, so that the clamping plate 22 slides inside the through groove 31, and at the same time, the first connecting plate 21 and the second connecting plate 30 move and drive the limit frame 24 to slide on the upper side of the limit bar 25. The anti-slip groove 23 is provided to improve its stability during clamping, thereby clamping and fixing the flying car 13 on the upper side of the test bench 12, realizing the ability to quickly and automatically complete the clamping and positioning of the flying car 13, and effectively preventing the flying car 13 from sliding under test conditions such as vibration, thereby ensuring the safety of the entire test process and the accuracy of the test results.
[0021] Reference Figure 1-Figure 5 , both sides of the interior of the groove 15 are fixedly connected to fixed rods 32, both sides of the exterior of the fixed rod 32 are slidably connected to sliding blocks 33, the lower side of the sliding block 33 is fixedly connected to a limited block 34, and the four corners of the lower part of the groove 15 are provided with limited slots 35, and the limit blocks 34 are slidably connected to the interior of the limit slots 35. The four corners of the interior of the groove 15 are fixedly connected to hydraulic rods 36, and the output end of the hydraulic rod 36 is fixedly connected to a support block 37, and the support block 37 is fixedly connected to the side away from the sliding block 33. Both sides of the exterior of the fixed rod 32 are sleeved with adjustment groups The adjusting component is used to adjust the use position of the clamping component; the adjusting component includes a spring 38, which is sleeved on both sides of the outside of the fixed rod 32, one end of the spring 38 is fixedly connected to the inside of the groove 15, and the other end of the spring 38 is fixedly connected to the opposite side of the sliding block 33, and the upper side of the sliding block 33 is fixedly connected to the first adapter block 39, and the interior of the first adapter block 39 is rotatably connected to the support rod 40, and the support rod 40 is rotatably connected to the inside of the second adapter block 41, and the second adapter block 41 is fixedly connected to both sides of the lower part of the base plate 16.
[0022] When using this device, the control panel 2 is manually opened, and the control panel 2 is started to drive the hydraulic rod 36 to start, and the hydraulic rod 36 is started to drive the support block 37 to move, and the support block 37 moves to drive the sliding block 33 to move, so that the sliding block 33 slides outside the fixed rod 32, thereby stretching the spring 38, and the sliding block 33 moves to drive the first adapter block 39 to move. At the same time, the sliding block 33 moves to drive the limit block 34 to slide inside the limit groove 35, and the first adapter block 39 moves to drive the support rod 40 to move, and the support rod 40 moves to drive the second adapter block 41 to move, and the second adapter block 41 moves to drive the bottom plate 16 to move, so that the bottom plate 16 slides inside the groove 15, thereby driving the clamping assembly to move, thereby achieving smooth and labor-saving overall position adjustment of the entire clamping assembly, and can easily adapt to flying cars 13 of different sizes or models, greatly enhancing the versatility and applicability of the test bench 12.
[0023] Reference Figure 3 、 Figure 6 The interior of the acoustic cabin 3 is fixedly connected to an electromagnetic shielding layer 6, and the interior of the electromagnetic shielding layer 6 is fixedly connected to a sound-absorbing layer 7. A vent 8 is opened on the left side of the acoustic cabin 3, and a support frame 9 is fixedly connected to the left side of the acoustic cabin 3. The interior of the support frame 9 is rotatably connected to evenly distributed test components, and the test components are used for wind noise testing of flying cars 13 and aircraft; the test components include a rotating shaft 10, which is rotatably connected to the interior of the support frame 9, and an adjustment plate 11 is fixedly connected to the outside of the rotating shaft 10. A test bench 12 is fixedly connected to the upper side of the workbench 1, and a flying car 13 is placed on the upper side of the test bench 12. The outside of the flying car 13 is fixedly connected to evenly distributed acoustic sensors 14.
[0024] When using this device, the electromagnetic shielding layer 6 is set to prevent external electromagnetic interference, and the sound-absorbing layer 7 is set to reduce the noise reflectivity, ensuring that the test noise is not interfered with and improving the test accuracy. By manually rotating the adjustment plate 11, the adjustment plate 11 rotates and drives the rotating shaft 10 to rotate, so that the rotating shaft 10 rotates inside the support frame 9 to adjust the airflow entering the vent 8. The acoustic sensor 14 is set to collect wind noise data generated on the vehicle body, so that the device can have an acoustic cabin 3 with a good test environment, which is specially used for wind noise testing of flying cars 13 and aircraft, with good test effect and high accuracy.
[0025] Reference Figure 2 、 Figure 3 、 Figure 6The inside of the test bench 12 is provided with evenly distributed through grooves 31, and the splint 22 is slidably connected to the inside of the through groove 31; the inside of the bottom plate 16 is provided with a connecting groove 20, and the connecting block 19 is slidably connected to the inside of the connecting groove 20; the four corners of the lower part of the groove 15 are provided with limiting grooves 35, and the limiting block 34 is slidably connected to the inside of the limiting groove 35.
[0026] When using this device, evenly distributed through grooves 31 are opened through the inside of the test table 12, and the splint 22 is slidably connected to the inside of the through groove 31, which plays a role in supporting and limiting the splint 22; a connecting groove 20 is opened through the inside of the bottom plate 16, and the connecting block 19 is slidably connected to the inside of the connecting groove 20, which plays a role in supporting and limiting the connecting block 19; limiting grooves 35 are opened at the four lower corners of the groove 15, and the limiting block 34 is slidably connected to the inside of the limiting groove 35, which plays a role in supporting and limiting the limiting block 34.
[0027] Another embodiment of the present invention discloses a method for testing wind noise of a land-air vehicle, comprising the following steps: S1. First, the push rod 17 is activated. This activates the push block 18 and the first connecting plate 21 to move. The movement of the first connecting plate 21 drives the first rotating plate 26, the second rotating plate 27, the rotating block 28, and the third rotating plate 29 to rotate. The rotation of the third rotating plate 29 drives the second connecting plate 30 to move. The movement of the first connecting plate 21 and the second connecting plate 30 drives the clamping plate 22 to move. The anti-slip groove 23 improves its stability during clamping, thereby clamping and fixing the flying car 13. S2. Next, the hydraulic rod 36 is activated, which drives the support block 37 and the sliding block 33 to move, causing the sliding block 33 to slide outside the fixed rod 32, thereby stretching the spring 38. At the same time, the movement of the sliding block 33 drives the first adapter block 39, the support rod 40, the second adapter block 41 and the bottom plate 16 to move, thereby adjusting the use position of the clamping assembly; S3. Finally, the electromagnetic shielding layer 6 is provided to prevent external electromagnetic interference, the sound-absorbing layer 7 is provided to reduce the noise reflectivity, and the rotating shaft 10 is driven to rotate inside the support frame 9 by rotating the adjustment plate 11 to adjust the airflow entering the vent 8. The acoustic sensor 14 is provided to collect the wind noise data generated on the vehicle body, so that the device can have an acoustic cabin 3 with a good test environment, good test effect and high accuracy.
[0028] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.
Claims
1. A wind noise testing device for a land and air vehicle, comprising a workbench (1), characterized in that: The front side of the workbench (1) is fixedly connected with a protective component, and the protective component is used to better protect the test environment. The upper side of the workbench (1) is provided with a groove (15), and the interior of the groove (15) is slidably connected with a bottom plate (16). The upper right side of the bottom plate (16) is fixedly connected with a push rod (17), and the output end of the push rod (17) is fixedly connected with a push block (18). The lower side of the push block (18) is fixedly connected with a connecting block (19), and the upper side of the connecting block (19) is fixedly connected with a first connecting plate (21). The upper side of the first connecting plate (21) is rotatably connected with a first rotating plate (26), and the front side of the first rotating plate (26) is rotatably connected with a second rotating plate (27). The second rotating plate (27) The first connecting plate (21) and the second connecting plate (30) are fixedly connected to both sides of the rotating block (28), the rotating block (28) is rotatably connected to the upper side of the bottom plate (16), the upper side of the second rotating plate (27) is rotatably connected to the third rotating plate (29), the third rotating plate (29) is rotatably connected to the upper side of the second connecting plate (30), the upper sides of the first connecting plate (21) and the second connecting plate (30) are fixedly connected to the clamping plates (22), the adjacent sides of the clamping plates (22) are provided with anti-slip grooves (23), the lower sides of the first connecting plate (21) and the second connecting plate (30) are fixedly connected to the limiting frames (24), the limiting frames (24) are slidably connected to the upper side of the limiting strips (25), and the limiting strips (25) are fixedly connected to the upper four corners of the bottom plate (16).
2. The wind noise testing device for a land-air dual-purpose vehicle according to claim 1, characterized in that: The protective assembly comprises a control panel (2), the control panel (2) being fixedly connected to the front side of the workbench (1), an acoustic cabin (3) being fixedly connected to the upper side of the workbench (1), a cover plate (4) being rotatably connected to the upper side of the acoustic cabin (3), a perspective window (5) being fixedly connected to the interior of the cover plate (4), and a perspective window (5) being fixedly connected to the front side of the acoustic cabin (3).
3. The wind noise testing device for a land-air dual-purpose vehicle according to claim 1, characterized in that: Both sides of the interior of the groove (15) are fixedly connected to fixed rods (32), both sides of the exterior of the fixed rod (32) are slidably connected to sliding blocks (33), the lower side of the sliding block (33) is fixedly connected to a limiting block (34), and the four corners of the lower part of the groove (15) are provided with limiting grooves (35), the limiting blocks (34) are slidably connected to the interior of the limiting grooves (35), the four corners of the interior of the groove (15) are fixedly connected to hydraulic rods (36), the output end of the hydraulic rod (36) is fixedly connected to a support block (37), the support block (37) is fixedly connected to the side away from the sliding block (33), and both sides of the exterior of the fixed rod (32) are sleeved with adjustment components, and the adjustment components are used to adjust the use position of the clamping component.
4. The wind noise testing device for a land-air dual-purpose vehicle according to claim 3, characterized in that: The adjustment assembly includes a spring (38), which is sleeved on both sides of the exterior of the fixed rod (32), one end of the spring (38) is fixedly connected to the interior of the groove (15), and the other end of the spring (38) is fixedly connected to the opposite side of the sliding block (33), the upper side of the sliding block (33) is fixedly connected to a first adapter block (39), the interior of the first adapter block (39) is rotatably connected to a support rod (40), the support rod (40) is rotatably connected to the interior of a second adapter block (41), and the second adapter block (41) is fixedly connected to both sides of the lower portion of the base plate (16).
5. The wind noise testing device for a land-air dual-purpose vehicle according to claim 2, characterized in that: An electromagnetic shielding layer (6) is fixedly connected to the interior of the acoustic cabin (3), a sound absorbing layer (7) is fixedly connected to the interior of the electromagnetic shielding layer (6), a vent (8) is provided on the left side of the acoustic cabin (3), a support frame (9) is fixedly connected to the left side of the acoustic cabin (3), and evenly distributed test components are rotatably connected to the interior of the support frame (9), and the test components are used for wind noise testing of flying cars (13) and aircraft.
6. The wind noise testing device for a land-air vehicle according to claim 5, characterized in that: The test assembly comprises a rotating shaft (10), the rotating shaft (10) is rotatably connected to the inside of a support frame (9), an adjusting plate (11) is fixedly connected to the outside of the rotating shaft (10), a test bench (12) is fixedly connected to the upper side of the workbench (1), a flying car (13) is placed on the upper side of the test bench (12), and evenly distributed acoustic sensors (14) are fixedly connected to the outside of the flying car (13).
7. The wind noise testing device for a land-air vehicle according to claim 6, characterized in that: The interior of the test bench (12) is provided with evenly distributed through slots (31), and the clamping plate (22) is slidably connected inside the through slots (31).
8. The wind noise testing device for a land-air vehicle according to claim 1, characterized in that: A connecting groove (20) is provided inside the bottom plate (16), and the connecting block (19) is slidably connected inside the connecting groove (20).
9. The wind noise testing device for a land-air vehicle according to claim 3, characterized in that: Limiting grooves (35) are provided at the four lower corners of the groove (15), and the limiting blocks (34) are slidably connected inside the limiting grooves (35).
10. A method for testing wind noise of an amphibious vehicle, according to a device for testing wind noise of an amphibious vehicle according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, the push rod (17) is started. The push rod (17) is started to drive the push block (18) and the first connecting plate (21) to move. The first connecting plate (21) moves to drive the first rotating plate (26), the second rotating plate (27), the rotating block (28) and the third rotating plate (29) to rotate. The third rotating plate (29) rotates to drive the second connecting plate (30) to move. The first connecting plate (21) and the second connecting plate (30) move to drive the clamping plate (22). The anti-slip groove (23) is provided to improve its stability during clamping, thereby clamping and fixing the flying car (13); S2. Then, the hydraulic rod (36) is started, and the hydraulic rod (36) is started to drive the support block (37) and the sliding block (33) to move, so that the sliding block (33) slides outside the fixed rod (32), thereby stretching the spring (38). At the same time, the sliding block (33) moves to drive the first adapter block (39), the support rod (40), the second adapter block (41) and the bottom plate (16) to move, thereby adjusting the use position of the clamping assembly; S3. Finally, the electromagnetic shielding layer (6) is provided to prevent external electromagnetic interference, the sound absorbing layer (7) is provided to reduce the noise reflectivity, the rotating shaft (10) is driven to rotate inside the support frame (9) by rotating the adjustment plate (11) to adjust the airflow entering the vent (8), and the acoustic sensor (14) is provided to collect wind noise data generated on the vehicle body.