Wind tunnel roughness element device

Abstract

The utility model discloses a wind tunnel roughness element device, including rectangular frame and connecting in frame on several first roughness elements, the frame has horizontal platform, and several first rough roughness element is set in the above platform in matrix mode to form initial simulation topography. The wind tunnel roughness element device includes several drive assemblies below the frame, the drive assembly with the number same with first roughness element and one -to -one correspondence setting, several drive assemblies are independently set up and are connected to the lower end of corresponding first roughness element respectively, so that several drive assemblies drive corresponding first roughness element along vertical direction respectively independently to form other simulation topography different from initial simulation topography. The utility model simulates various complex topography through the height of each first roughness element is controlled accurately, and accurate complex topography helps to reduce the risk and cost in the construction process, improves construction efficiency and quality, promotes the prediction ability and reliability of model.

Description

Technical Field

[0001] This utility model relates to the field of wind tunnel testing technology, and in particular to a wind tunnel roughness element device that can independently control roughness elements. Background Technology

[0002] To accurately understand the effects of wind on structures, wind tunnel tests with different terrains and scales are typically conducted in wind tunnel environments. By changing the placement, number, and size of rough elements (rough elements), atmospheric boundary layers with varying terrains can be effectively simulated. Current techniques often employ a method of integrally attaching the rough elements to the bottom of the wind tunnel, with the rough elements moving up and down as a single unit during wind tunnel testing. However, if the wind field needs to be changed, the entire rough element assembly must be replaced. Replacing the entire rough element assembly negatively impacts the efficiency of the simulated wind field test and also affects positioning accuracy. Furthermore, frequent rough element replacement increases subsequent maintenance costs and complexity, as well as test time costs, thus requiring improvements in overall efficiency.

[0003] Therefore, it is hoped that a new wind tunnel rough element device can be proposed to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this invention is to provide a wind tunnel roughness element device that can independently and precisely control the height of each roughness element to meet the needs of simulating various complex terrains.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a wind tunnel rough element device, comprising a rectangular frame and a plurality of first rough elements connected to the frame. The frame has a horizontal platform, and the plurality of first rough elements are arranged in a matrix above the platform to form an initial simulated terrain. The wind tunnel rough element device includes a plurality of driving components located below the frame. The number of driving components is the same as the number of first rough elements and they are arranged in a one-to-one correspondence. The plurality of driving components are independently arranged and respectively connected to the lower end of the corresponding first rough element, so that the plurality of driving components independently drive the corresponding first rough element to move vertically relative to the platform to form a simulated terrain different from the initial simulated terrain.

[0006] In a preferred embodiment, the drive assembly includes a support base fixed to the lower part of the frame, a push rod located in the support base, and a cylinder for driving the push rod. The push rod passes vertically upward through the frame and is connected to the lower end of the first roughness element. The cylinder drives the push rod to move the first roughness element vertically relative to the platform.

[0007] In a preferred embodiment, the push rod is provided with a horizontal connecting plate at the top, and the first rough element is provided with a columnar first body, a fixing seat at the bottom of the first body, and several bolts. The bolts pass through the connecting plate and the fixing seat in sequence and are fixedly connected to the bottom of the first body.

[0008] In a preferred embodiment, the drive assembly has guide rail seats connected to both sides of the support base and a guide rail partially housed within the guide rail seats. The guide rail extends vertically through the guide rail seats, and the top of the guide rail is connected to the bottom surface of the connecting plate.

[0009] In a preferred embodiment, the frame has several longitudinal beams arranged in a transverse direction, the support base is connected and fixed to the bottom of the longitudinal beams, the first roughness element is disposed above the longitudinal beams, the longitudinal beams have several slots on the top surface, and when the first roughness element is in the initial simulated terrain, the connecting plate of the push rod is received in the slots.

[0010] In a preferred embodiment, the frame has several crossbeams arranged longitudinally, the crossbeams being connected to the longitudinal beams to form the frame, and the first roughness element is not disposed at the connection between the longitudinal beams and the crossbeams.

[0011] In a preferred embodiment, the wind tunnel roughness element device includes several second roughness elements located above the platform, the several second roughness elements being arranged in an array and fixedly connected to the crossbeam.

[0012] In a preferred embodiment, the height of the second roughness element is greater than the height of the first roughness element, and the second roughness element and the first roughness element do not interfere with each other.

[0013] In a preferred embodiment, the wind tunnel roughening element device includes a controller electrically connected to a plurality of the driving components, the controller independently controlling each of the driving components to drive the corresponding first roughening element to move vertically.

[0014] In a preferred embodiment, the controller has multiple parameters for simulating terrain, and the controller controls each of the first coarse units to move vertically to different heights according to the required parameters for simulating terrain.

[0015] Compared with existing technologies, this invention has the following advantages: The wind tunnel rough element device includes several driving components located below the frame. The number of driving components is the same as the number of first rough elements, and they are arranged in a one-to-one correspondence. The driving components are independently arranged and connected to the lower end of the corresponding first rough element, so that the driving components independently drive the corresponding first rough element to move vertically relative to the platform, thereby forming simulated terrain different from the initial simulated terrain. This invention can effectively improve the accuracy of terrain simulation by precisely controlling the height of each first rough element to simulate various complex terrains. It can simulate wind energy distribution under different wind speeds and directions, more accurately study the influence of different terrain features on wind field structure, wind speed distribution, and wind direction changes, study the diffusion law of pollutants under different terrain conditions, predict the occurrence and development trend of disasters, and the accurate simulation of complex terrains can help reduce the risks and costs in the construction process, improve construction efficiency and quality, enhance the predictive ability and reliability of the model, and provide a more accurate basis for decision-making. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the wind tunnel roughness element device in a preferred embodiment of the present invention.

[0017] Figure 2 yes Figure 1 The front view of the wind tunnel rough element device shown.

[0018] Figure 3 yes Figure 1 The front view of the wind tunnel rough element device shown.

[0019] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the first roughness element and the drive assembly in the wind tunnel roughness element device shown.

[0020] Figure 5 yes Figure 4 The first roughness element and the front view of the driving component are shown.

[0021] Figure 6 yes Figure 4 The first roughness element and the cross-sectional view of the driving component are shown. Detailed Implementation

[0022] Please see Figures 1 to 6 As shown, a preferred embodiment of the present invention discloses a wind tunnel roughness element device 100, which is used to simulate various complex terrains in wind tunnel tests. The wind tunnel roughness element device 100 includes a rectangular frame 10, a plurality of first roughness elements 20 and second roughness units 30 connected to the frame 10, a plurality of drive components 40 located below the frame 10, and a controller (not shown).

[0023] Please see Figures 1 to 3 As shown, the frame 10 has several longitudinal beams 11 arranged laterally and several transverse beams 12 arranged longitudinally. The transverse beams 12 are connected to the longitudinal beams 11 to form the frame 10. The frame 10 has a horizontal platform, and several first roughness elements 20 and second roughness elements 30 are located above the platform. Specifically, several first roughness elements 20 are arranged in a matrix above the platform, and several second roughness elements 30 are arranged in an array above the platform to form an initial simulated terrain.

[0024] The first roughness element 20 is disposed above the longitudinal beam 11, and several second roughness elements 30 are fixedly connected to the crossbeam 12; and the first roughness element 20 is not disposed at the connection between the longitudinal beam 11 and the crossbeam 12, so that the second roughness elements 30 and the first roughness element 20 do not interfere with each other. In this embodiment, the height of the second roughness element 30 is greater than the height of the first roughness element 20, that is, the size of the second roughness element 30 is different from the size of the first roughness element 20.

[0025] The number of driving components 40 is the same as that of the first rough elements 20 and they are arranged in a one-to-one correspondence. Several driving components 40 are arranged independently and connected to the lower end of the corresponding first rough elements 20, so that several driving components 40 can independently drive the corresponding first rough elements 20 to move vertically relative to the platform to form other simulated terrains different from the initial simulated terrain.

[0026] Please see Figures 4 to 6 As shown, the drive assembly 40 includes a support base 41 fixed below the frame 10, a push rod 42 located within the support base 41, and a cylinder 43 driving the push rod 42. The support base 41 extends vertically and is fixed to the bottom of the longitudinal beam 11. The push rod 42 also extends vertically and passes vertically upward through the longitudinal beam 11 of the frame 41 until its top end connects to the lower end of the first rough element 20. The cylinder 43 and the push rod 42 are arranged side by side in the transverse direction, and the cylinder 43 drives the push rod 42 to move the first rough element 20 vertically relative to the platform.

[0027] Specifically, the push rod 42 is provided with a horizontal connecting plate 421 at the top, and the longitudinal beam 11 is provided with several slots (unlabeled) on the top surface. When the first rough element 20 is in the initial simulated terrain, the connecting plate 421 of the push rod 42 is received in the slots. The first rough element 20 is provided with a columnar first body 21, a fixing seat 22 at the bottom of the first body 21, and several bolts 23. The bolts 23 pass through the connecting plate 421 and the fixing seat 22 of the push rod 42 from bottom to top and are fixedly connected to the bottom of the first body 21, so that the first rough element 20 and the push rod 42 of the drive assembly 40 are stably connected.

[0028] The drive assembly 40 also includes guide rail seats 44 connected to the longitudinal sides of the support base 41 and guide rails 45 partially housed within the guide rail seats 44. The guide rail seats 44 have guide rail grooves (not labeled) that extend vertically through the guide rails, and the guide rails 45 extend vertically through the guide rail grooves of the guide rail seats 44, with the top of the guide rails 45 connected to the bottom surface of the connecting plate 421 of the push rod 42; to guide the push rod 42 to drive the first roughness element 20 to move vertically.

[0029] The controller is electrically connected to several drive components 40, and each drive component 40 is independently controlled to drive the corresponding first roughening unit 20 to move vertically. In this embodiment, the controller has parameters for various simulated terrains formed by setting different PLC programs. The controller controls each first roughening unit 20 to move vertically to different heights according to the required simulated terrain parameters to accurately simulate various complex terrains, thereby achieving the effect of simulating various wind field tests. At the same time, accurate simulation of complex terrains helps to reduce risks and costs during construction, improve construction efficiency and quality, and enhance the predictive ability and reliability of the model.

[0030] In this invention, the wind tunnel rough element device 100 includes several driving components 40 located below the frame 10. The number of driving components 40 is the same as the number of first rough elements 20, and they are arranged in a one-to-one correspondence. The driving components 40 are independently arranged and connected to the lower end of their respective first rough elements 20, allowing each driving component 40 to independently drive its corresponding first rough element 20 to move vertically relative to the platform, thus forming simulated terrain different from the initial simulated terrain. The wind tunnel rough element device 100, by precisely controlling the height of each first rough element 20 to simulate various complex terrains, can effectively improve the accuracy of terrain simulation, simulate wind energy distribution under different wind speeds and directions, more accurately study the influence of different terrain features on wind field structure, wind speed distribution, and wind direction changes, study the diffusion patterns of pollutants under different terrain conditions, predict the occurrence and development trends of disasters, and accurately simulate complex terrains. This helps reduce risks and costs during construction, improves construction efficiency and quality, enhances the predictive ability and reliability of the model, and provides a more accurate basis for decision-making.

[0031] In summary, the above are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model should still fall within the scope of the present utility model patent.

Claims

1. A wind tunnel rough element device, comprising a rectangular frame and a plurality of first rough elements connected to the frame, the frame having a horizontal platform, and the plurality of first rough elements arranged in a matrix above the platform to form an initial simulated terrain; characterized in that: The wind tunnel rough element device includes several driving components located below the frame. The number of driving components is the same as that of the first rough elements and they are arranged in a one-to-one correspondence. The driving components are arranged independently and connected to the lower end of the corresponding first rough elements, so that the driving components independently drive the corresponding first rough elements to move vertically relative to the platform to form a simulated terrain different from the initial simulated terrain.

2. The wind tunnel rough element device as described in claim 1, characterized in that: The drive assembly includes a support base fixed below the frame, a push rod located within the support base, and a cylinder for driving the push rod. The push rod passes vertically upward through the frame and is connected to the lower end of the first roughness element. The cylinder drives the push rod to move the first roughness element vertically relative to the platform.

3. The wind tunnel roughness element device as described in claim 2, characterized in that: The push rod is provided with a horizontal connecting plate at the top, and the first rough element is provided with a columnar first body, a fixing seat at the bottom of the first body and several bolts. The bolts pass through the connecting plate and the fixing seat in sequence and are fixedly connected to the bottom of the first body.

4. The wind tunnel roughness element device as described in claim 3, characterized in that: The drive assembly has guide rail seats connected to both sides of the support base and a guide rail partially housed in the guide rail seats. The guide rail extends vertically through the guide rail seats, and the top of the guide rail is connected to the bottom surface of the connecting plate.

5. The wind tunnel roughness element device as described in claim 3, characterized in that: The frame has several longitudinal beams arranged in a transverse direction. The support base is connected and fixed to the bottom of the longitudinal beams. The first rough element is disposed above the longitudinal beams. The longitudinal beams have several slots on their top surfaces. When the first rough element is in the initial simulated terrain, the connecting plate of the push rod is received in the slots.

6. The wind tunnel roughness element device as described in claim 5, characterized in that: The frame has several crossbeams arranged longitudinally, which are connected to the longitudinal beams to form the frame, and the first roughness element is not set at the connection between the longitudinal beams and the crossbeams.

7. The wind tunnel rough element device as described in claim 6, characterized in that: The wind tunnel roughness element device includes several second roughness elements located above the platform. The several second roughness elements are arranged in an array and fixedly connected to the crossbeam.

8. The wind tunnel rough element device as described in claim 7, characterized in that: The height of the second roughness element is greater than the height of the first roughness element, and the second roughness element and the first roughness element do not interfere with each other.

9. The wind tunnel rough element device as described in claim 1, characterized in that: The wind tunnel roughness element device includes a controller electrically connected to several of the drive components, each controller independently controlling each drive component to drive the corresponding first roughness element to move vertically.

10. The wind tunnel rough element device as described in claim 9, characterized in that: The controller has multiple parameters for simulating terrain, and controls each of the first rough elements to move vertically to different heights according to the parameters of the required simulated terrain.

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