An adjustable profile wind farm simulation roughness element device

Abstract

The utility model belongs to the wind tunnel test technical field, specifically discloses a rough element device of appearance parameter adjustable wind field simulation, including slide rail, at least two elevating gear, pivot device, each elevating gear bottom is equipped with sliding block A, the sliding block A is slidably established on the slide rail, pivot device includes pivot, adjusting sheet and pivot connecting piece, the adjusting sheet is coiled on pivot, adjusting sheet free end is connected to the output end of elevating gear, pivot connecting piece one end is connected with pivot, pivot connecting piece other end is slidably established on slide rail. The utility model provides a rough element device of appearance parameter adjustable wind field simulation, through pivot device and elevating gear cooperation, drive adjusting sheet free end to move to dynamic control appearance parameter, effectively solved the technical problem that traditional rough element device parameter adjustment was complicated, and the low efficiency problem, has the advantage that appearance parameter can be adjusted fast, flexible and accurately.

Description

Technical Field

[0001] This utility model relates to the field of wind tunnel testing technology, and in particular to a rough element device for simulating wind field with adjustable shape parameters. Background Technology

[0002] Accurate and efficient simulation of atmospheric boundary layer wind fields plays a crucial role in the study of wind loads and wind-induced vibrations of engineering structures. In wind tunnel tests, the wedge-rough element combination is the core method for simulating atmospheric boundary layer wind fields. The wedge acts as a turbulence generator, working synergistically with the densely arranged rough elements on the wind tunnel floor to rapidly achieve the target boundary layer thickness and generate mean velocity and turbulence profiles that conform to the characteristics of the actual atmospheric boundary layer. However, when simulating different types of atmospheric boundary layer wind fields, the shape parameters of the rough elements, such as height and width, need to be dynamically adjusted to adapt to specific test conditions.

[0003] Traditional rough element devices employ a fixed-size design, making changes to their shape parameters extremely cumbersome. This typically involves complete disassembly, manual replacement, or repositioning of numerous individual components. This process is not only time-consuming and labor-intensive but also prone to human intervention introducing positioning deviations, leading to distortion of wind field simulation data. Especially in large-scale wind tunnel tests, where hundreds or even thousands of rough elements need to be deployed, the inefficiency of parameter adjustment is significantly amplified, severely slowing down the testing process and increasing operating costs. Current technology lacks a rough element solution that allows for rapid, flexible, and precise control of shape parameters, thus limiting the adaptability and efficiency of wind field simulations.

[0004] In summary, existing rough element devices suffer from limitations in adaptability and efficiency for wind field simulation due to difficulties in adjusting their external dimensions. Utility Model Content

[0005] This invention provides a rough element device for wind field simulation with adjustable shape parameters, which can solve the problem that the adaptability and efficiency of wind field simulation are limited by the difficulty in adjusting the shape and size of existing rough element devices.

[0006] A rough element device for simulating wind fields with adjustable shape parameters, comprising: slide rail; At least two lifting devices, each with a slider A at its bottom, the slider A being slidably mounted on a slide rail; A rotating shaft device includes a rotating shaft, an adjusting sheet, and a rotating shaft connector. The adjusting sheet is wound around the rotating shaft, and the free end of the adjusting sheet is connected to the output end of the lifting device. One end of the rotating shaft connector is connected to the rotating shaft, and the other end of the rotating shaft connector is slidably disposed on the slide rail. The lifting device is used to drive the free end of the adjustment sheet to move.

[0007] The rough element device for simulating wind fields with adjustable shape parameters provided by this utility model has the following beneficial effects compared with the prior art: In this adjustable rough element device for wind field simulation, a slide rail serves as the basic track, providing a movement path that allows other components to slide along it, facilitating overall position adjustment. Slider A is located at the bottom of the lifting device and slidably mounted on the slide rail, allowing the lifting device to move freely along the slide rail according to experimental requirements, enabling continuous adjustment of the rough element width. An adjustment sheet in the rotating shaft device is wound around the shaft, with its free end connected to the output end of the lifting device. When the lifting device drives the free end of the adjustment sheet to move, the sheet can unfold or wind, thereby changing the height of the rough element. This winding design avoids the rigid limitations of traditional fixed structures, allowing for smooth changes in height parameters. One end of the rotating shaft connector is connected to the rotating shaft, while the other end is slidably mounted on the slide rail. As the adjustment sheet changes its extension state, the rotating shaft connector can adjust the position of the rotating shaft, ensuring uniform force on the adjustment sheet during movement, preventing jamming or deformation, and maintaining stable operation of the device. Thus, the components work together to achieve rapid and efficient adjustment of shape parameters through sliding and driving mechanisms, solving the problem of difficulty in changing shape parameters in traditional rough elements, and significantly improving the adaptability and experimental efficiency of wind field simulation.

[0008] This wind field simulation rough element device with adjustable shape parameters uses a rotating shaft device and a lifting device to drive the free end of the adjustment sheet to move dynamically to control the shape parameters. It effectively solves the technical problems of cumbersome and inefficient parameter adjustment of traditional rough element devices, and has the advantages of being able to adjust the shape parameters quickly, flexibly and accurately.

[0009] Furthermore, the slide rail is provided with a slide track extending along the length of the slide rail, and the slider A is slidably disposed in the slide track.

[0010] Furthermore, the cross-sectional shape of the slide is trapezoidal.

[0011] Furthermore, a limiting hole is provided at one end of the slide rail, and a limiting post is provided at the other end of the slide rail; The shape of the limiting post is adapted to the shape of the limiting hole.

[0012] Furthermore, the cross-sectional shape of the slider A is adapted to the cross-sectional shape of the slide rail.

[0013] Furthermore, the slider A is provided with a first locking mechanism for locking it onto the slide rail.

[0014] Furthermore, the rotating shaft connector includes a connecting post, a connecting block, and a slider B; One end of the connecting post is connected to the rotating shaft, and the other end of the connecting post is connected to the connecting block; The slider B is disposed on the connecting block, and the slider B is slidably disposed within the slide rail.

[0015] Furthermore, the connecting column is perpendicularly connected to the rotating shaft in an L-shape.

[0016] Furthermore, the cross-sectional shape of the slider B is adapted to the cross-sectional shape of the slide rail.

[0017] Furthermore, the slider B is provided with a second locking mechanism for locking it onto the slide rail. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 A schematic diagram of the structure of a rough element device for simulating wind field with adjustable shape parameters provided by this utility model; Figure 2 A schematic diagram of the lifting device of a wind field simulation rough element device with adjustable shape parameters provided by this utility model; Figure 3 A schematic diagram of the slide rail of a wind field simulation rough element device with adjustable shape parameters provided by this utility model; Figure 4 A schematic diagram of the rotating shaft device of a wind field simulation rough element device with adjustable shape parameters provided by this utility model; Figure 5 This is a schematic diagram of the rotating shaft connector of a wind field simulation rough element device with adjustable shape parameters provided by this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Rotating shaft device; 2. Slide rail; 3. Lifting device; 4. Rotating shaft connector; 101. Rotating shaft; 102. Adjusting sheet; 104. Connecting column; 105. Connecting block; 106. Slider B; 201. Slide rail; 202. Limiting hole; 203. Limiting column; 301. Slider A. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0025] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, B and / or C can represent: B existing alone, B and C existing simultaneously, or C existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] like Figures 1 to 3 As shown in the figure, an embodiment of the present invention provides a rough element device for simulating wind fields with adjustable shape parameters, comprising: Slide rail 2; At least two lifting devices 3, each lifting device 3 having a slider A 301 at its bottom, the slider A 301 being slidably mounted on the slide rail 2; The rotating shaft device 1 includes a rotating shaft 101, an adjusting sheet 102, and a rotating shaft connector 4. The adjusting sheet 102 is wound on the rotating shaft 101, and the free end of the adjusting sheet 102 is connected to the output end of the lifting device 3. One end of the rotating shaft connector 4 is connected to the rotating shaft 101, and the other end of the rotating shaft connector 4 is slidably disposed on the slide rail 2. The lifting device 3 is used to drive the free end of the adjustment sheet 102 to move.

[0027] In practical applications, the slide rail 2 can be understood as a basic structure that provides a linear movement path. Its main function is to guide and support the sliding of other components. For example, the slide rail 2 can be implemented by setting linear guides, ball guides, or grooves. Its material can be metal or high-strength plastic to meet the needs of different test environments.

[0028] Furthermore, the lifting device 3 is a mechanism capable of vertical displacement, which can be implemented using a hydraulic cylinder, pneumatic cylinder, or electric push rod. The slider A 301, as the connecting component between the lifting device 3 and the slide rail 2, can be designed with a rectangular, circular, or other geometric shape to adapt to different slide rail structures.

[0029] Specifically, the rotating shaft 101 in the rotating shaft device 1 can be implemented using a cylindrical rigid rod with a smooth surface to reduce friction. The adjusting sheet 102 can be made of a flexible material, such as a thin aluminum sheet or a polymer film, and is fixed to the rotating shaft 101 by winding, thereby realizing the function of unfolding or retracting. The rotating shaft connector 4 can be designed with a split structure, for example, by bolt connection or snap-fit ​​connection to achieve assembly with the rotating shaft 101, so as to facilitate disassembly and maintenance.

[0030] The innovation of this application lies in the coordinated design of the slide rail, lifting device, and rotating shaft device, which enables flexible adjustment of the rough element's shape parameters. Compared with the traditional fixed structure rough element, this embodiment solves the problem of difficulty in changing the shape parameters of the traditional rough element by using the sliding of the slider A 301 along the slide rail 2 and the driving of the lifting device 3 on the adjustment sheet 102, thereby improving the efficiency of wind field simulation.

[0031] The working principle of this embodiment is as follows: The device achieves flexible adjustment of the rough element's shape parameters through the coordinated design of the slide rail, lifting device, and rotating shaft device. The slide rail, as the basic track, provides a movement path, allowing other components to slide along it, facilitating overall position adjustment. The slider A is located at the bottom of the lifting device and slidably mounted on the slide rail, allowing the lifting device to move freely along the slide rail according to experimental requirements, thus achieving continuous adjustment of the rough element's width. The adjusting sheet 102 in the rotating shaft device is wound around the rotating shaft 101, with its free end connected to the output end of the lifting device 3. When the lifting device 3 drives the free end of the adjusting sheet 102 to move, the adjusting sheet 102 can unfold or wind up, thereby changing the height of the rough element. This winding design avoids the rigid limitations of traditional fixed structures, allowing for smooth changes in height parameters. One end of the rotating shaft connector 4 is connected to the rotating shaft 101, and the other end is slidably mounted on the slide rail 2. As the extension state of the adjustment sheet 102 changes, the rotating shaft connector 4 can adjust the position of the rotating shaft 101 to ensure that the adjustment sheet 102 is subjected to uniform force during movement, preventing jamming or deformation and maintaining stable operation of the device. Thus, the various components cooperate with each other, achieving rapid and efficient adjustment of the shape parameters through sliding and driving mechanisms. This solves the problem of difficulty in changing shape parameters in traditional roughness elements, significantly improving the adaptability and experimental efficiency of wind field simulation.

[0032] like Figures 1 to 3 As shown, in some embodiments of this utility model, a slide rail 201 extending along the length of the slide rail 2 is provided on the slide rail 2, and the slider A 301 is slidably disposed in the slide rail 201.

[0033] Specifically, slide 201 refers to the guide groove structure machined along the length of slide rail 2, which can be achieved by machining, casting, or extrusion molding. In practical applications, the cross-sectional shape of slide 201 can be designed in various forms according to specific needs, such as rectangular, trapezoidal, or other polygonal structures, with the aim of providing a precise guide path for slider A301. Slider A301 can be understood as a sliding component adapted to slide 201, which can be formed by machining metal materials and reducing the coefficient of friction through surface treatment processes, thereby improving sliding performance.

[0034] In detail, this technical solution fundamentally optimizes the motion stability of slider A301 by integrating a slide rail 201 structure onto the slide rail 2. The slide rail 201 extends along the length of the slide rail 2, providing a closed guide path for slider A301, ensuring that the sliding process is strictly confined within a predetermined direction and avoiding lateral displacement caused by external disturbances. The design of slider A301 embedded within the slide rail 201 creates a surface contact constraint, significantly reducing sliding friction resistance and suppressing swaying. Furthermore, the cooperation between the slide rail 201 and slider A301 effectively disperses the vibration load generated during the operation of the lifting device 3, thereby ensuring precise control of the free end position of the adjustment sheet 102. This structural improvement not only enhances the reliability and repeatability of roughness element height parameter adjustment but also lays the foundation for the efficient execution of wind field simulation experiments.

[0035] like Figures 1 to 3 As shown, in some embodiments of this utility model, the cross-sectional shape of the slide 201 is trapezoidal.

[0036] Specifically, slide 201 refers to the guide structure used to guide the slider to slide smoothly on slide rail 2. It can be made of metal material with a trapezoidal cross section formed by machining, or it can be directly made into a trapezoidal cross section by injection molding. The purpose of choosing a trapezoidal cross section is to utilize its geometric properties to achieve a self-locking fit and ensure that the slider remains stable during movement.

[0037] In detail, the trapezoidal cross-section slide 201 forms a specific mating relationship with the slider A 301. The two side walls of the slide 201 have a certain inclination angle. This design can provide smooth guidance in the sliding direction while effectively constraining the lateral displacement of the slider A 301. When airflow disturbances or external vibrations occur in the wind tunnel, the geometric constraint of the trapezoidal cross-section can prevent the slider A 301 from shifting or detaching. In addition, this design also ensures the positional accuracy of the lifting device 3 when driving the free end of the adjustment sheet 102 to move, thereby ensuring the reliability and repeatability of the rough element shape parameter adjustment.

[0038] Through the above technical solutions, the trapezoidal cross-section design of slide 201 not only solves the problem of lateral swaying that may occur in slider A 301 during movement, but also provides a stable support foundation for the entire wind field simulation rough element device, significantly improving the accuracy and efficiency of wind field simulation experiments.

[0039] like Figures 1 to 4 As shown, in some embodiments of this utility model, a limiting hole 202 is provided at one end of the slide 201, and a limiting post 203 is provided at the other end of the slide 201; the shape of the limiting post 203 is adapted to the shape of the limiting hole 202.

[0040] Specifically, the limiting hole 202 is a circular through hole, the diameter of which ensures that the limiting post 203 can be smoothly inserted and has sufficient stability after insertion. The limiting post 203 is a cylinder, the outer diameter of which matches the diameter of the limiting hole 202. This design is not only used for connecting multiple wind field simulation rough element devices with adjustable shape parameters, but also for extending the length of the slide rail 2.

[0041] In detail, when used to connect multiple wind field simulation rough element devices with adjustable shape parameters, each of the multiple wind field simulation rough element devices with adjustable shape parameters is equipped with a slide rail 2. The slide rails 2 of two adjacent wind field simulation rough element devices with adjustable shape parameters can be assembled. For example, in two adjacent wind field simulation rough element devices with adjustable shape parameters, the slide rail 2 of one wind field simulation rough element device with adjustable shape parameters is defined as slide rail A, and the slide rail 2 of the other wind field simulation rough element device with adjustable shape parameters is defined as slide rail B. The limiting post 203 on slide rail A can be adapted to be inserted into the limiting hole 202 on slide rail B to complete the connection of the two wind field simulation rough element devices with adjustable shape parameters.

[0042] When it is necessary to extend the length of slide rail 2, the same method is used, through the cooperation of the limiting post and the limiting hole on the slide rail. For example, at the end of one slide rail, its limiting post can be inserted into the limiting hole at the beginning of another slide rail of the same specification, so that the two slide rails can be connected end to end, thereby effectively extending the total length of the slide rails. This design greatly enhances the flexibility and scalability of the device, easily achieving whether it is necessary to connect multiple devices or extend the slide rail length of a single device, meeting the diverse needs of different wind field simulation scenarios.

[0043] The above settings can be used to flexibly adjust the width of the roughness element device to adapt to wind field simulation environments with different width requirements.

[0044] like Figures 1 to 3 As shown, in some embodiments of this utility model, the cross-sectional shape of slider A 301 is adapted to the cross-sectional shape of slide 201.

[0045] Specifically, slider A 301 refers to the key component used for sliding within slide rail 201. It can be made of metal or high-strength engineering plastic to ensure sufficient strength and wear resistance. The cross-sectional shape of slider A 301 can be trapezoidal, rectangular, or other adaptable shapes depending on the specific design of slide rail 201. The purpose is to reduce gaps by closely fitting the inner wall of the slide rail, thereby avoiding jamming or wobbling caused by shape mismatch. In addition, slide rail 201 refers to the structure that provides guidance for slider A 301. Its cross-sectional shape can also be designed as trapezoidal or other adaptable forms according to actual needs to achieve the best fit with slider A 301.

[0046] In detail, the adaptive design between slider A 301 and slide rail 201 ensures that the slider maintains a stable position during sliding, avoiding lateral shift or tilting. This design not only reduces sliding resistance but also effectively prevents jamming caused by excessively large or small gaps. In the rough element device for wind field simulation, slider A 301, as a key connecting component of the lifting device 3, directly determines the precise control capability of the free end position of the adjustment sheet 102 through its stable sliding. Through the above design, this scheme improves the smoothness and repeatability of the overall operation of the device, providing a fundamental guarantee for the efficient simulation of atmospheric boundary layer wind fields. At the same time, the adaptive design between slider A 301 and slide rail 201 also forms an organic connection with other components. For example, the stability of slider A 301 directly affects the reliability of the lifting device 3 in adjusting the height of the adjustment sheet 102, thereby supporting the precise adjustment of the rough element height and width.

[0047] Through the above technical solution, the adaptation design between slider A 301 and slide rail 201 significantly improves the accuracy and stability of shape parameter adjustment, solves the problems of jamming, shaking or positioning deviation that may occur during sliding, and thus improves the efficiency of wind field simulation test.

[0048] like Figures 1 to 3 As shown, in some embodiments of this utility model, the slider A 301 is provided with a first locking mechanism for locking it onto the slide rail 2.

[0049] Specifically, the first locking mechanism refers to a device that can fix the slider A301 to the slide rail 2, which can be achieved by bolt locking, snap-locking, or magnetic adsorption. In practical applications, the purpose of introducing the first locking mechanism is to ensure that the slider A301 can be firmly fixed on the slide rail 2 after being adjusted to the target position, thereby avoiding positional displacement caused by external vibration or airflow interference.

[0050] In detail, slider A 301 is reliably connected to slide rail 2 via a first locking mechanism. This design not only retains the flexibility of slider A 301 sliding and adjusting along slide rail 201, but also effectively solves the problem of unstable rough element position caused by the lack of a fixing mechanism. Based on this, the first locking mechanism acts directly on the structure of slide rail 2, ensuring the accuracy and reliability of the locking process, thereby maintaining the boundary layer characteristics required for wind field simulation. Furthermore, the adaptability design between slider A 301 and slide rail 201 further enhances the stability of the locking mechanism, enabling the entire device to maintain high accuracy and repeatability in wind tunnel testing.

[0051] In summary, through the above technical solutions, slider A 301 can be flexibly adjusted and reliably locked on slide rail 2, thereby significantly improving the efficiency and accuracy of wind field simulation.

[0052] like Figures 1 to 5 As shown, in some embodiments of this utility model, the rotating shaft connector 4 includes a connecting post 104, a connecting block 105, and a slider B 106. One end of the connecting post 104 is connected to the rotating shaft 101, and the other end of the connecting post 104 is connected to the connecting block 105; Slider B 106 is mounted on connecting block 105 and is slidably mounted in slide rail 201.

[0053] The connecting column 104 is a rigid component used to transmit force between the rotating shaft 101 and the connecting block 105. It can be a metal cylinder, a rectangular cross-section column, or other structures with sufficient strength and rigidity. Its purpose is to ensure a smooth transition of the rotational motion of the rotating shaft 101 to the connecting block 105, while avoiding stress concentration and vibration. The connecting block 105 is an intermediate support platform providing a mounting base for the slider B 106. It can be a flat plate structure, a frame structure, or a composite structure with reinforcing ribs. Its purpose is to provide a stable mounting base for the slider B 106, thereby reducing offset during movement. The slider B 106 is a sliding component embedded in the slide rail 201 to achieve low-friction linear motion. It can be a slider made of polymer material, a ball bearing slider, or a metal slider with a lubricating coating. Its purpose is to suppress lateral swaying and improve the accuracy of position adjustment by cooperating with the geometric constraint characteristics of the slide rail 201.

[0054] Specifically, the above solution achieves hierarchical decomposition and optimization of the sliding function through a split combination design of connecting column 104, connecting block 105, and slider B 106. Connecting column 104, as the core force transmission component, smoothly transmits the rotational inertia of shaft 101 to connecting block 105, avoiding stress concentration and vibration problems caused by rigid direct connection, thus ensuring the dynamic balance of the shaft device during movement. Connecting block 105 provides a stable mounting base for slider B 106 according to the force flow direction transmitted by connecting column 104, enabling slider B 106 to accurately embed into slide rail 201, significantly reducing movement deviation. Slider B 106 utilizes the guiding effect of slide rail 201 to achieve low-friction linear motion and effectively suppress lateral swaying, while also providing a foundation for the subsequent locking mechanism, thereby improving the accuracy of position adjustment and the smoothness of operation. Furthermore, the hierarchical coordination among the aforementioned components not only solves the problems of sliding stability and positioning accuracy, but also enhances the reliability of rough element shape parameter adjustment through the mutual synergy between structures, thereby significantly improving the efficiency of wind field simulation experiments.

[0055] like Figures 1 to 3 As shown, in some embodiments of this utility model, the connecting column 104 is vertically connected to the rotating shaft 101 in an L-shape.

[0056] Specifically, the connecting column 104 is a structural component used to support the rotating shaft 101. It can be made of metal or high-strength composite materials to ensure sufficient rigidity. The L-shaped vertical connection, by setting the connection angle to 90 degrees, effectively prevents the rotating shaft 101 from shifting or wobbling under dynamic loads. The purpose of this design is to provide stable support, ensuring the smoothness of the winding process of the adjustment sheet 102, thereby improving the accuracy of roughness element height adjustment.

[0057] In detail, the vertical L-shaped connection between the connecting column 104 and the rotating shaft 101 restricts the degree of freedom of the rotating shaft 101 through a rigid structure, ensuring it remains horizontal. When the lifting device 3 drives the free end of the adjusting sheet 102 to move, the rotating shaft 101 needs to withstand dynamic loads and rotate smoothly. At this time, the rigid support provided by the connecting column 104 effectively counteracts the influence of external forces on the rotating shaft 101, avoiding inconsistent movement of the adjusting sheet 102 due to tilting or swaying. Furthermore, this design, together with components such as the slide rail 2 and the slider B 106, ensures higher reliability and efficiency of the entire device during wind field simulation. Through the above technical solution, not only is the problem of insufficient stability of the rotating shaft 101 solved, but the accuracy of rough element height adjustment and experimental efficiency are also significantly improved.

[0058] like Figures 1 to 3As shown, in some embodiments of this utility model, the cross-sectional shape of slider B 106 is adapted to the cross-sectional shape of slide 201.

[0059] Specifically, slider B 106 refers to the component that slides within slide rail 201 to adjust the position of the rotating shaft connector 4. It can be designed with a shape that matches the trapezoidal cross-section of slide rail 201. In practical applications, the design of slider B 106 must ensure a tight fit within slide rail 201 to avoid wobbling or jamming due to shape differences. This adaptive design aims to improve the guiding performance of slider B 106 within slide rail 201 while reducing frictional resistance during movement, thereby ensuring the accuracy and repeatability of the position adjustment of the rotating shaft connector 4.

[0060] In detail, the slider B 106, through its adaptive design to the cross-sectional shape of the slide rail 201, effectively solves the problem of potential jamming during sliding. Specifically, during the sliding process within the slide rail 201, the slider B 106, because its cross-sectional shape perfectly matches the trapezoidal cross-section of the slide rail 201, can tightly conform to the inner wall of the slide rail 201. This design not only improves the stability of the slider B 106 but also reduces wobbling or frictional resistance caused by shape mismatch. Furthermore, the adaptive design of the slider B 106 provides higher precision and reliability for the position adjustment of the rotating shaft connector 4, thereby supporting precise control of the roughness element height. Based on this, the optimized design of the slider B 106, combined with the structure of the slide rail 201, further enhances the performance of the entire device in wind field simulation experiments.

[0061] Through the above technical solutions, the cross-sectional shape of slider B 106 and the matching design of slide 201 significantly improve the smoothness of sliding and the accuracy of position adjustment, providing a reliable structural foundation for wind field simulation experiments.

[0062] like Figures 1 to 3 As shown, in some embodiments of this utility model, the slider B 106 is provided with a second locking mechanism for locking it onto the slide rail 2.

[0063] Specifically, the second locking mechanism is a device that can fix the slider B 106 to the slide rail 2, which can be achieved by bolt locking, snap-locking, or friction braking. In practical applications, the purpose of this mechanism is to ensure that the slider B 106 can be reliably fixed after being adjusted to the target position, thereby avoiding the risk of displacement caused by external interference.

[0064] In detail, slider B 106 is connected to slide rail 2 in an adjustable and fixed manner via a second locking mechanism. When slider B 106 slides along slide rail 201 to the desired position, the operator can lock it instantly using the second locking mechanism. This design not only allows slider B 106 to flexibly adjust its position according to wind field simulation requirements, but also effectively resists airflow impact or vibration interference during wind tunnel testing when locked. Furthermore, because the cross-sectional shape of slider B 106 is adapted to slide rail 201, combined with the use of the second locking mechanism, the stability of slider B 106 on slide rail 2 is further improved, thus ensuring the consistency of roughness element height and position parameters. Based on this, the reliability of the entire device is significantly improved, providing more accurate and stable conditions for wind field simulation tests.

[0065] like Figures 1 to 3 As shown, in some embodiments of this utility model, the connecting column 104 and the connecting block 105 are fixed by bolt connection, welding connection or integral molding.

[0066] Specifically, the connecting column 104 refers to the structural component used to support and connect the rotating shaft 101 and the connecting block 105. It can be made of metal and has sufficient strength to withstand the dynamic loads in wind field simulation. In practical applications, the connecting column 104 can be fixedly connected to the connecting block 105 in various ways. For example, bolted connections provide flexible disassembly and adjustment capabilities, facilitating maintenance during the test; welded connections form a continuous metal bond through high-temperature fusion, ensuring the connection remains stable under high wind speed impact; and integral molding integrates the two into a single component using casting or injection molding processes, fundamentally eliminating the connection interface and thus improving the overall structural reliability. The selection of these connection methods aims to meet the structural stability requirements under different test needs.

[0067] In detail, the above technical solution effectively improves the structural reliability of the shaft connector in wind field simulation by limiting the specific connection method between the connecting column 104 and the connecting block 105. In actual operation, the connection method between the connecting column 104 and the connecting block 105 directly affects the overall performance of the shaft device 1. For example, when bolted connections are used, operators can quickly adjust the tightness according to changes in test conditions, avoiding loosening due to vibration; while welded connections eliminate potential gaps at mechanical connection points through high-strength metal bonding, maintaining absolute stability of the shaft position under continuous airflow impact; the one-piece molding method directly integrates the connecting column 104 and the connecting block 105 through manufacturing processes, fundamentally eliminating the existence of a connection interface and ensuring no displacement risk under high wind speed loads. Furthermore, the selection of the above connection method complements the design of the slider B106 and the slide rail 201, jointly ensuring that the shaft connector can reliably support the free end movement of the adjustment sheet 102 under the dynamic airflow action in wind tunnel tests, thereby achieving precise control of the roughness element height change.

[0068] The above technical solution not only solves the problem that the connecting column 104 and the connecting block 105 may become loose or fail due to airflow vibration or load changes, but also significantly improves the overall stability and adaptability of the device, ultimately improving the efficiency and accuracy of wind field simulation.

[0069] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A rough element device for simulating wind fields with adjustable shape parameters, characterized in that, include: Slide rail (2); At least two lifting devices (3), each lifting device (3) has a slider A (301) at its bottom, and the slider A (301) is slidably mounted on the slide rail (2); A rotating shaft device (1) includes a rotating shaft (101), an adjusting sheet (102), and a rotating shaft connector (4). The adjusting sheet (102) is wound around the rotating shaft (101), and the free end of the adjusting sheet (102) is connected to the output end of the lifting device (3). One end of the rotating shaft connector (4) is connected to the rotating shaft (101), and the other end of the rotating shaft connector (4) is slidably disposed on the slide rail (2). The lifting device (3) is used to drive the free end of the adjustment sheet (102) to move.

2. The wind field simulation rough element device with adjustable shape parameters according to claim 1, characterized in that, The slide rail (2) has a slide track (201) extending along the length of the slide rail (2), and the slider A (301) is slidably disposed in the slide track (201).

3. The wind field simulation rough element device with adjustable shape parameters according to claim 2, characterized in that, The slide (201) has a trapezoidal cross-sectional shape.

4. The wind field simulation rough element device with adjustable shape parameters according to claim 2, characterized in that, The slide (201) has a limiting hole (202) at one end and a limiting post (203) at the other end. The shape of the limiting post (203) is adapted to the shape of the limiting hole (202).

5. The wind field simulation rough element device with adjustable shape parameters according to claim 2, characterized in that, The cross-sectional shape of the slider A (301) is adapted to the cross-sectional shape of the slide rail (201).

6. The wind field simulation rough element device with adjustable shape parameters according to claim 5, characterized in that, The slider A (301) is provided with a first locking mechanism for locking it onto the slide rail (2).

7. The wind field simulation rough element device with adjustable shape parameters according to claim 2, characterized in that, The rotating shaft connector (4) includes a connecting post (104), a connecting block (105), and a slider B (106). One end of the connecting post (104) is connected to the rotating shaft (101), and the other end of the connecting post (104) is connected to the connecting block (105); The slider B (106) is disposed on the connecting block (105), and the slider B (106) is slidably disposed in the slide rail (201).

8. The wind field simulation rough element device with adjustable shape parameters according to claim 7, characterized in that, The connecting column (104) is perpendicularly connected to the rotating shaft (101) in an L-shape.

9. A rough element device for simulating wind fields with adjustable shape parameters according to claim 7, characterized in that, The cross-sectional shape of the slider B (106) is adapted to the cross-sectional shape of the slide rail (201).

10. A rough element device for simulating wind fields with adjustable shape parameters according to claim 9, characterized in that, The slider B (106) is provided with a second locking mechanism for locking it onto the slide rail (2).

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