Experimental device for simulating fluid-solid soil coupling effect of fan single pile under power influence
By combining wave flow tanks to simulate the hydrodynamic environment and mechanical loading in the experimental device, the problem that traditional equipment is difficult to simulate hydrodynamic and wind load at the same time is solved, and the accuracy of experimental results and effective simulation of multiple loads are achieved.
Patent Information
- Application Number
- CN202421162239.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-27
AI Technical Summary
Traditional experimental equipment is difficult to simulate the hydrodynamic environment and fan tower load at the same time, which affects the accuracy of the experimental results.
The wave current tank is used to simulate the direct load of the pile foundation and the erosion effect of the seabed soil of the water dynamic environment. At the same time, the effect of the fan tower on the pile top is simulated by mechanical loading means.
Simultaneous simulation of the hydrodynamic environment and fan tower load is achieved, which meets the needs of experimental research, and avoids unnecessary constraints on the displacement of pile foundation model, ensuring the correctness of experimental results.
Smart Images
Figure CN222435371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering experimental equipment, in particular to an experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine single pile under the influence of dynamic force. Background Art
[0002] During offshore wind turbine operation, the rotation of the turbine blades generates periodic aerodynamic loads on the tower. These loads are transmitted through the tower and act on the underwater pile foundation in the form of periodic horizontal loads and bending moments. These periodic loads, combined with cyclical hydrodynamic loads such as waves and currents, can produce complex coupling effects on the interaction between the piles and the seabed foundation, potentially inducing localized scouring, liquefaction, and even foundation instability in the silty seabed soil near the pile foundation.
[0003] Model experiments are an important means of studying the complex fluid-solid-soil coupling problems of offshore structures. The reliability of the experimental results requires that the experimental device itself be able to simulate the main load factors. Among the current research results on offshore wind turbines, there are few experimental studies that can simulate both the hydrodynamic environment and the wind turbine tower load, and the simulation methods also have limitations. On the one hand, this is because there are very few experimental platforms that have both a wave flow flume and an upper wind tunnel, making it difficult to simultaneously realize the effects of hydrodynamic loads and wind loads; on the other hand, if an external vibrator is used to simulate the wind turbine load, the pile foundation model needs to be connected to the external vibrator for force transmission, and this connection will impose unnecessary constraints on the displacement of the pile foundation itself, affecting the correctness of the experimental results. Utility Model Content
[0004] In response to the technical problem that traditional experimental equipment is difficult to simulate the hydrodynamic environment and wind turbine tower load at the same time, the utility model provides an experimental device for simulating the fluid-solid-soil coupling effect of a single wind turbine pile under the influence of dynamic force. It uses a wave flow flume to simulate the direct load of the hydrodynamic environment on the pile foundation and the scouring effect on the seabed soil. At the same time, mechanical loading means are used to simulate the effects of the wind turbine tower on the periodic bending moment and horizontal load on the pile top, thereby meeting the experimental research on the hydrodynamic environment and wind turbine tower load simulation.
[0005] The technical solution provided by the utility model is: an experimental device for simulating the fluid-solid-soil coupling effect of a single wind turbine pile under the influence of power, comprising a connecting bracket and a wave flow flume, wherein an experimental soil body is arranged in the wave flow flume, the experimental soil body is used to arrange a pile foundation model, and the connecting bracket is used to be fixedly connected to the top of the pile foundation model; a tower load simulation component is arranged on the top of the wave flow flume, and the tower load simulation component comprises a bracket platform, on which a load-bearing guide rail and a translation guide rail are fixedly arranged; a motor bracket is arranged on the load-bearing guide rail, the bottom of the motor bracket is movably matched with the load-bearing guide rail, a motor is arranged on the motor bracket, a bearing is arranged between the motor bracket and the housing of the motor, and a coaxial flywheel and a first translation gear are fixedly arranged on the output shaft of the motor; a motor bracket is fixedly arranged on the housing of the motor There is a first fixed frame, and an intermediate frame is provided between the first fixed frame and the connecting frame; a rod frame is hinged between the first fixed frame and the intermediate frame, and between the intermediate frame and the connecting frame, so that the first fixed frame, the intermediate frame and the rod frame, and the intermediate frame, the connecting frame and the rod frame form a parallelogram truss; a translation rack is movably provided on the translation guide rail, and a second translation gear is meshed on the translation rack, and the first translation gear and the second translation gear are directly meshed or engaged through a gear mechanism; a second fixed frame is fixedly provided on the housing of the motor, and a longitudinal guide rail is fixedly provided on the second fixed frame, and the longitudinal guide rail is parallel to the height direction of the pile foundation model; a slider is fixedly provided on the connecting bracket, and the slider is movably engaged with the longitudinal guide rail.
[0006] Optionally, a first guide rail is provided on the top of the side wall of the wave flow water tank, a guide wheel is provided on the bottom of the support platform, the guide wheel is movably matched with the first guide rail, and a locking mechanism is provided between the support platform and the first guide rail.
[0007] Optionally, the locking mechanism includes a locking bracket, a fixed clamp, a dynamic clamp and a threaded rotary rod, the locking bracket is fixedly connected to the bracket platform, the fixed clamp is fixedly connected to the locking bracket, the fixed clamp abuts against the first guide rail, the dynamic clamp is located on one side of the fixed clamp, the dynamic clamp is fixed to one end of the threaded rotary rod close to the fixed clamp, the dynamic clamp is used to abut against the first guide rail, and the threaded rotary rod is threadedly engaged with the locking bracket.
[0008] Optionally, there are at least two load-bearing guide rails, and there are at least two corresponding motor brackets. The load-bearing guide rails are arranged in parallel with each other, at least one motor bracket is located on the side of the motor housing close to the motor output shaft, and at least one motor bracket is located on the side of the motor housing away from the motor output shaft.
[0009] Optionally, when the first translation gear and the second translation gear are engaged with each other through a gear mechanism, the gear mechanism includes n transmission gears, at least one transmission gear is engaged with the first translation gear, and at least one transmission gear is engaged with the second translation gear, wherein n≥1; when n≥2, adjacent transmission gears are engaged with each other.
[0010] Optionally, the flywheel is provided with a fixing hole and further comprises at least one first counterweight block, wherein the first counterweight block is fixedly connected to the flywheel through the fixing hole.
[0011] Optionally, when there are at least two first counterweights, the first counterweights are evenly distributed along the circumferential direction of the flywheel.
[0012] Optionally, connecting holes are provided on both sides of the translation rack, and the device further comprises at least one second counterweight block, wherein the second counterweight block is fixedly connected to the translation rack through the connecting holes.
[0013] Optionally, when at least two second counterweights are provided, the second counterweights are evenly distributed along the extension direction of the translation rack.
[0014] Optionally, the motor is a servo motor.
[0015] Beneficial effects
[0016] The technical solution provided by the present invention has the following beneficial effects compared with the existing technology: in order to solve the technical problem that traditional experimental equipment is difficult to simulate the hydrodynamic environment and the wind turbine tower load at the same time, the present invention adopts a wave flow flume to simulate the direct load of the hydrodynamic environment on the pile foundation and the scouring effect on the seabed soil. At the same time, mechanical loading means are used to simulate the effects of the wind turbine tower on the pile top's periodic bending moment and horizontal load, thereby meeting the experimental research on the simulation of the hydrodynamic environment and the wind turbine tower load. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic structural diagram of an experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine single pile under dynamic influence, as proposed in an embodiment of the present utility model.
[0018] Figure 2 This is one of the structural schematic diagrams of the tower load simulation component proposed in an embodiment of the present utility model.
[0019] Figure 3 This is the second structural schematic diagram of the tower load simulation component proposed in an embodiment of the present utility model.
[0020] Figure 4 This is a schematic diagram of the partial structure of the tower load simulation component proposed in an embodiment of the present utility model.
[0021] Figure 5 This is a structural diagram of the locking mechanism proposed in an embodiment of the present utility model. DETAILED DESCRIPTION
[0022] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.
[0023] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are intended solely to illustrate the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the relevant portions of the utility model are shown in the accompanying drawings. Terms such as "first," "second," and so on, used in the present utility model are provided for the convenience of describing the technical solution of the present utility model and do not have a specific limiting effect. They are general references and do not constitute a limitation on the technical solution of the present utility model. It should be noted that, unless conflicting, the embodiments and features within the embodiments of the present application may be combined with one another. In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or locations, are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate the description of the present utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contain contradictions or conflicts, and all of these are within the scope of protection claimed by this utility model.
[0024] Example 1
[0025] Combined with attachment Figure 1-5, this embodiment proposes an experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine single pile under the influence of dynamic force, comprising a connecting bracket 100 and a wave flow flume 2, wherein an experimental soil 3 is arranged in the wave flow flume 2, the experimental soil 3 is used to arrange a pile foundation model 4, and the connecting bracket 100 is used to be fixedly connected to the top of the pile foundation model 4; a tower load simulation component 1 is arranged on the top of the wave flow flume 2, and the tower load simulation component 1 includes a bracket platform 101, on which a load-bearing guide rail 102 and a translation guide rail 103 are fixedly arranged; a motor bracket 104 is arranged on the load-bearing guide rail 102, the bottom of the motor bracket 104 is movably matched with the load-bearing guide rail 102, a motor 105 is arranged on the motor bracket 104, a bearing 106 is arranged between the motor bracket 104 and the housing of the motor 105, a coaxial flywheel 107 and a first translation gear 111 are fixedly arranged on the output shaft of the motor 105; a first fixing bracket 121 is fixedly arranged on the housing of the motor 105, An intermediate bracket 108 is provided between the fixing bracket 121 and the connecting bracket 100; a rod 109 is hinged between the first fixing bracket 121 and the intermediate bracket 108, and between the intermediate bracket 108 and the connecting bracket 100, so that the first fixing bracket 121, the intermediate bracket 108 and the rod 109, and the intermediate bracket 108, the connecting bracket 100 and the rod 109 form a parallelogram truss; a translation rack 110 is movably provided on the translation guide rail 103, and the translation rack 110 is hinged between the first fixing bracket 121 and the intermediate bracket 108 and the rod 109. 10 is meshed with a second translation gear 112, and the first translation gear 111 and the second translation gear 112 are directly meshed with each other, or are meshed with each other through a gear mechanism; a second fixing frame 122 is fixedly provided on the housing of the motor 105, and a longitudinal guide rail 113 is fixedly provided on the second fixing frame 122, and the longitudinal guide rail 113 is parallel to the height direction of the pile foundation model 4; a slider 114 is fixedly provided on the connecting bracket 100, and the slider 114 is movably engaged with the longitudinal guide rail 113.
[0026] In response to the technical problem that traditional experimental equipment is difficult to simulate the hydrodynamic environment and wind turbine tower load at the same time, the utility model provides an experimental device for simulating the fluid-solid-soil coupling effect of a single wind turbine pile under the influence of dynamic force. It uses a wave flow flume 2 to simulate the direct load of the hydrodynamic environment on the pile foundation and the scouring effect on the seabed soil. At the same time, mechanical loading means are used to simulate the effects of the wind turbine tower on the periodic bending moment and horizontal load on the pile top, thereby meeting the experimental research on the hydrodynamic environment and wind turbine tower load simulation.
[0027] In this embodiment, the wave flow water tank 2 is an existing wave flow water tank, which is used to simulate the hydrodynamic environment during the experiment. A pile foundation model 4 that is proportionally reduced from at least part of the tower connected to the top of the wind turbine single pile foundation or the pile foundation is at least partially buried in the experimental soil 3 in the wave flow water tank 2. Water can be discharged to a certain depth in the wave flow water tank 2 to generate hydrodynamic environments such as waves and water flows around the pile foundation model 4.
[0028] When simulating the hydrodynamic environment using the wave flow flume 2, an experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine pile under dynamic influence can utilize the tower load simulation assembly 1 to simultaneously simulate the bending moment and horizontal load acting on the top of the pile foundation. The power source for the horizontal load and bending moment load simulation is a motor 105. In a preferred embodiment, the motor 105 is a servo motor 105.
[0029] For horizontal load simulation, it is mainly the simulation of horizontal reciprocating force load. The principle is: first, according to the loading needs, the reciprocating rotation period and angle amplitude of the output shaft of motor 105 are set. The reciprocating rotation period of motor 105 is the loading period of horizontal load. The larger the angle amplitude, the proportional increase of horizontal load will be. After the motor 105 is started, the motor 105 reciprocates according to the settings, driving the first translation gear 111 to reciprocate, and the motor 105 directly or indirectly drives the second translation gear 112 to reciprocate through the first translation gear 111. The second translation gear 112 engages with the translation rack 110, so that the translation rack 110 reciprocates along the translation guide rail 103, and the motor bracket 104 and the load-bearing guide rail 102 can slide relative to each other. When the motor 105 and the motor bracket 104 have a horizontal movement tendency under the reaction force of the translation rack 110, the horizontal reciprocating force load is applied to the top of the pile foundation model 4 through the second fixed frame 122, the longitudinal guide rail 113 and the slider 114.
[0030] Among them, the setting of the longitudinal guide rail 113 ensures that when the motor 105 and the motor bracket 104 have a horizontal movement tendency under the reaction force of the translation rack 110, the longitudinal movement tendency is absorbed by the longitudinal guide rail 113, thereby ensuring that it is only used to transmit horizontal loads to the top of the pile foundation model 4, and cannot transmit other types of loads to the pile foundation model 4.
[0031] In some embodiments, the translation rack 110 is provided with connection holes on both sides and includes at least one second counterweight 152, which is fixedly connected to the translation rack 110 through the connection holes. In this embodiment, the function of the second counterweight 152 is to change the counterweight of the translation rack 110, thereby changing the reaction force generated by the translation rack 110 during its reciprocating motion, thereby adjusting the horizontal reciprocating force applied to the top of the pile foundation model 4. Obviously, the greater the number of second counterweights on the translation rack 110 and the greater their mass, the greater the counterweight and the greater the amplitude of the periodic horizontal load.
[0032] In a further embodiment, when at least two second counterweights 152 are provided, the second counterweights 152 are evenly distributed along the extension direction of the translation rack 110. This ensures that even when more second counterweights 152 are added, the weight distribution on the translation rack 110 remains even, thereby ensuring stability when a horizontal force load is applied.
[0033] The simulation of moment loads is primarily for reciprocating moment loads. The principle is as follows: First, the reciprocating rotation period and angular amplitude of the output shaft of motor 105 are set according to loading requirements. The reciprocating rotation period of motor 105 is the loading period of the torque. The larger the angular amplitude, the proportional increase in torque. After motor 105 is started, it reciprocates according to the settings, causing flywheel 107 to reciprocate. The motor bracket 104 and the bearing guide rail 102 can slide relative to each other. When motor 105 tends to rotate under the reaction torque of flywheel 107, the reaction torque of flywheel 107 is transmitted to the top of pile foundation model 4 via the first fixed frame 121, intermediate bracket 108, and rod bracket 109, as well as the parallelogram truss formed by the intermediate bracket 108, connecting bracket 100, and rod bracket 109. This achieves the application of a reciprocating moment load to the top of pile foundation model 4.
[0034] A bearing 106 is provided between the motor bracket 104 and the housing of the motor 105. Without other constraints, the servo motor 105 can rotate freely along the axis of the bearing 106. However, in this embodiment, because the motor 105 is connected to the pile foundation model 4 via a parallelogram truss, it does not rotate under the constraints of the pile foundation model 4 and merely transmits the reaction torque generated by the reciprocating drive of the flywheel 107 to the pile foundation model 4. The provision of the bearing 106 in this embodiment is also intended to accommodate the rotational tendency of the motor 105 housing, preventing the motor bracket 104 from bearing torque, thereby ensuring that torque can be fully transmitted to the top of the pile foundation model 4.
[0035] In some embodiments, the flywheel 107 is provided with a fixing hole and further includes at least one first counterweight 151, which is fixedly connected to the flywheel 107 via the fixing hole. In this embodiment, the function of the first counterweight 151 is to increase the moment of inertia of the flywheel 107. Under the same rotational speed, the higher the moment of inertia of the flywheel 107, the greater the reaction torque transmitted by the flywheel 107 to the motor 105 when the flywheel 107 is driven to rotate by the motor 105, thereby achieving the adjustment of the loading torque. Obviously, the more the number of first counterweights 151 on the flywheel 107 and the greater the mass, the greater the counterweight and the greater the amplitude of the periodic torque.
[0036] In a further embodiment, when at least two first counterweights 151 are provided, the first counterweights 151 are evenly distributed along the circumference of the flywheel 107. This ensures that even when more first counterweights 151 are added, the weight distribution on the flywheel 107 remains even, thereby ensuring the stability of the torque loading.
[0037] Combining the aforementioned principles, it can be seen that in this experimental setup, since the flywheel 107 and the first translational gear 111 are coaxially arranged, bending moment and horizontal load can be simulated simultaneously. Of course, separate simulations can also be performed when there are specific requirements. If only horizontal load is required, the flywheel 107 can be removed; if only torque loading is required, the translational rack 110 and guide rail can be removed.
[0038] In addition, combined with the above principles, it can be seen that a non-rigid connection is adopted between the tower load simulation component 1 and the pile foundation model 4, which allows the pile foundation model 4 to undergo a certain range of free horizontal displacement along the excitation direction, that is, as the complex load is loaded, without affecting the loading performance, thereby avoiding unnecessary constraints on the displacement of the pile foundation model 4 itself and affecting the correctness of the experimental results.
[0039] In some embodiments, a first guide rail 131 is provided at the top of the sidewall of the wave flow flume 2, and a guide wheel 130 is provided at the bottom of the support platform 101. The guide wheel 130 flexibly cooperates with the first guide rail 131, and a locking mechanism is provided between the support platform 101 and the first guide rail 131. Thus, the guide rail and guide wheel 130 enable the tower load simulation assembly 1 to be moved, thereby improving the convenience of the experiment. The provision of the locking mechanism ensures that the tower load simulation assembly 1 remains locked in position after being moved to the desired position, achieving a positioning and locking effect.
[0040] In conceivable embodiments, the locking mechanism can be some conventional clamps. In some preferred embodiments, the locking mechanism includes a locking bracket 140, a fixed clamp 141, a movable clamp 142, and a threaded rotary rod 143. The locking bracket 140 is fixedly connected to the bracket platform 101, the fixed clamp 141 is fixedly connected to the locking bracket 140, the fixed clamp 141 abuts against the first guide rail 131, the movable clamp 142 is located on one side of the fixed clamp 141, and the movable clamp 142 is fixed to an end of the threaded rotary rod 143 near the fixed clamp 141. The movable clamp 142 is used to abut against the first guide rail 131, and the threaded rotary rod 143 is threadedly engaged with the locking bracket 140. In this embodiment, when the locking mechanism needs to be locked, the threaded rod 143 is rotated. Since the threaded rod 143 is threadedly engaged with the locking bracket 140, the rotation of the threaded rod 143 will change the gap between the fixed clamp 141 and the dynamic clamp 142, so that the dynamic clamp 142 gradually approaches the fixed clamp 141 until the dynamic clamp 142 is tightly abutted against the first guide rail 131. At this time, the fixed clamp 141 and the dynamic clamp 142 achieve a tight clamping of the first guide rail 131, thereby achieving relative locking between the bracket platform 101 and the first guide rail 131.
[0041] In some embodiments, there are at least two load-bearing guide rails 102, and at least two corresponding motor brackets 104 are provided. The load-bearing guide rails 102 are arranged parallel to each other, and at least one motor bracket 104 is located on the side of the motor housing 105 close to the output shaft of the motor 105, and at least one motor bracket 104 is located on the side of the motor housing 105 away from the output shaft of the motor 105. This can further ensure the balance of the supporting forces on the motor 105 and improve the stability of the experimental device during the application of horizontal loads and bending moment loads.
[0042] In addition, the output shaft of the motor 105 transmits the rotational speed and torque of the motor 105 to the second translational gear 112 and the translation rack 110 through the first translational gear 111. In some embodiments, when the first translational gear 111 and the second translational gear 112 are engaged with each other through a gear mechanism, the gear mechanism includes n transmission gears, at least one transmission gear is engaged with the first translational gear 111, and at least one transmission gear is engaged with the second translational gear 112, wherein n≥1; when n≥2, adjacent transmission gears are engaged with each other. Thus, when the number of transmission gears is an odd number, the direction of movement, i.e., the direction of reversal, can be changed through the middle transmission gear. When there are multiple transmission gears and they form a gear set, they can also form a structure similar to a reducer to adjust the rotational speed and torque output to the second translational gear 112.
[0043] In summary, the experimental device of the present invention for simulating the fluid-solid-soil coupling effect of a single wind turbine pile under dynamic influence can simultaneously meet the simulation of the hydrodynamic environment and the wind turbine tower load, so as to simultaneously realize the effects of hydrodynamic load and wind load, and will not produce unnecessary constraints on the displacement of the pile foundation model 4 itself, thereby ensuring the correctness of the experimental results.
[0044] The above schematically describes the present invention and its embodiments, which are not restrictive. The accompanying drawings only illustrate one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above and, without departing from the inventive purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing them, they shall fall within the scope of protection of the present invention.
Claims
1. An experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine pile under the influence of dynamic forces, characterized in that: It comprises a connecting bracket and a wave flow flume, wherein the wave flow flume is provided with an experimental soil body, the experimental soil body is used to arrange a pile foundation model, and the connecting bracket is used to be fixedly connected to the top of the pile foundation model; a tower load simulation component is provided on the top of the wave flow flume, and the tower load simulation component comprises a bracket platform, and a load-bearing guide rail and a translation guide rail are fixedly provided on the bracket platform; A motor bracket is arranged on the bearing guide rail, the bottom of the motor bracket is movably matched with the bearing guide rail, a motor is arranged on the motor bracket, a bearing is arranged between the motor bracket and the housing of the motor, and a coaxial flywheel and a first translation gear are fixedly arranged on the output shaft of the motor; A first fixing frame is fixedly arranged on the housing of the motor, and an intermediate frame is arranged between the first fixing frame and the connecting frame; a rod frame is hinged between the first fixing frame and the intermediate frame, and between the intermediate frame and the connecting frame, so that the first fixing frame, the intermediate frame and the rod frame, and the intermediate frame, the connecting frame and the rod frame form a parallelogram truss; A translation rack is movably arranged on the translation guide rail, a second translation gear is meshedly arranged on the translation rack, and the first translation gear and the second translation gear are directly meshed or meshed through a gear mechanism; A second fixing frame is fixedly provided on the housing of the motor, a longitudinal guide rail is fixedly provided on the second fixing frame, the longitudinal guide rail is parallel to the height direction of the pile foundation model, a sliding block is fixedly provided on the connecting bracket, and the sliding block is movably matched with the longitudinal guide rail.
2. The experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine pile under the influence of dynamic force according to claim 1, characterized in that: A first guide rail is arranged on the top of the side wall of the wave flow water tank, a guide wheel is arranged on the bottom of the support platform, the guide wheel is movably matched with the first guide rail, and a locking mechanism is arranged between the support platform and the first guide rail.
3. The experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine pile under the influence of dynamic force according to claim 2, characterized in that: The locking mechanism includes a locking bracket, a fixed clamp, a movable clamp and a threaded rotating rod. The locking bracket is fixedly connected to the bracket platform, the fixed clamp is fixedly connected to the locking bracket, the fixed clamp abuts against the first guide rail, the movable clamp is located on one side of the fixed clamp, the movable clamp is fixed to an end of the threaded rotating rod close to the fixed clamp, the movable clamp is used to abut against the first guide rail, and the threaded rotating rod is threadedly matched with the locking bracket.
4. The experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine pile under the influence of dynamic force according to claim 1, characterized in that: There are at least two load-bearing guide rails, and at least two motor brackets are correspondingly arranged. The load-bearing guide rails are arranged in parallel with each other, at least one motor bracket is located on the side of the motor housing close to the motor output shaft, and at least one motor bracket is located on the side of the motor housing away from the motor output shaft.
5. The experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine pile under the influence of dynamic force according to claim 1, characterized in that: When the first translational gear and the second translational gear are meshed with each other through a gear mechanism, the gear mechanism includes n transmission gears, at least one of the transmission gears is meshed with the first translational gear, and at least one of the transmission gears is meshed with the second translational gear, wherein n≥1; when n≥2, adjacent transmission gears are meshed with each other.
6. The experimental device for simulating fluid-solid-soil coupling effect of a wind turbine pile under dynamic influence according to claim 1, characterized in that: The flywheel is provided with a fixing hole and further comprises at least one first counterweight block, wherein the first counterweight block is fixedly connected to the flywheel through the fixing hole.
7. The experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine pile under the influence of dynamic force according to claim 6, characterized in that: When at least two first counterweights are provided, the first counterweights are evenly distributed along the circumferential direction of the flywheel.
8. The experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine pile under the influence of dynamic force according to claim 1, characterized in that: The translational rack is provided with connecting holes on both sides thereof, and further comprises at least one second counterweight block, wherein the second counterweight block is fixedly connected to the translational rack through the connecting holes.
9. The experimental device for simulating the fluid-solid-soil coupling effect of a wind turbine pile under the influence of dynamic force according to claim 8, characterized in that: When at least two second counterweights are provided, the second counterweights are evenly distributed along the extension direction of the translation rack.
10. An experimental device for simulating fluid-solid-soil coupling effect of a wind turbine pile under dynamic influence according to any one of claims 1 to 8, characterized in that: The motor is a servo motor.