A sloshing experiment device and a sloshing detection method

Abstract

The application discloses a kind of sloshing experimental device and sloshing detection method, device includes sloshing exciting component, cylinder mechanism, deformation detection mechanism and the component to be tested, cylinder support mechanism;The component to be tested includes corrugated plate mechanism, heat insulation module mechanism;Sloshing exciting component includes longitudinal movement mechanism;Longitudinal movement mechanism includes longitudinal support frame, longitudinal slide rail, longitudinal sliding frame, longitudinal roller assembly and longitudinal drive assembly;Detection method is with the kinematics parameter that back-end system outputs the mechanical response data measured at front end with time axis alignment, obtains the life attenuation data under different working conditions, improves the reliability of detection method;The application constructs stable single-axis forced vibration physical test environment, restores the dynamics process that liquid experimental medium is in closed container to the beating of multilayer film enclosure structure, to provide hardware data acquisition basis for quantitatively evaluating the impact resistance performance and structural fatigue damage degree of the component to be tested.

Description

Technical Field

[0001] This application relates to the field of fluid dynamics testing equipment technology, and in particular to a swaying test apparatus and a swaying detection method. Background Technology

[0002] Existing testing equipment for cryogenic fluid storage and transportation equipment (such as LNG storage tanks) mostly adopts a static pressure testing structure that combines a fixed base with a sealed container, which keeps the tank in a relatively static state during the test. The above-mentioned testing equipment cannot simulate the dynamic motion encountered by ships in the actual marine environment. Existing experimental devices have failed to construct a dynamic stress testing environment for the corrugated plates and insulation modules inside the tank. Existing testing schemes lack the function of synchronously monitoring the dynamic stress transmission state and deformation data of the internal components of the membrane enclosure system under complex liquid sloshing impact, which makes it impossible for existing testing equipment to obtain fatigue damage data under dynamic working conditions. Summary of the Invention

[0003] To address the shortcomings of existing testing equipment in reproducing multi-degree-of-freedom swaying conditions and lacking synchronous monitoring of dynamic mechanics, this application provides a swaying experimental apparatus and a swaying detection method.

[0004] The swaying experimental apparatus and swaying detection method provided in this application adopt the following technical solution: A swaying test apparatus includes a swaying excitation component, a cylindrical mechanism, a deformation detection mechanism, and a component to be tested. The component to be tested is mounted on the cylindrical mechanism; during the shaking test, the cylindrical mechanism is filled with a liquid test medium; the deformation detection mechanism is connected to the component to be tested. The swaying excitation component is connected to the cylinder mechanism through the cylinder support mechanism, and is used to drive the cylinder mechanism to move so as to impact the component under test when the liquid experimental medium sways. The component to be tested includes a corrugated plate mechanism sealed inside the cylindrical structure and located at both ends of the cylindrical structure, and an insulating module mechanism tightly connected to the corrugated plate mechanism; the corrugated plate mechanism and the cylindrical structure form a closed space, and the liquid experimental medium is located in the closed space; The deformation detection mechanism is connected to the corrugated plate mechanism and the insulation module mechanism respectively; The swaying excitation component includes a longitudinal moving mechanism; the cylinder support mechanism is connected to the moving end of the longitudinal moving mechanism and is located above the longitudinal moving mechanism; The longitudinal moving mechanism includes a longitudinal support frame, a longitudinal slide rail connected to the longitudinal support frame, a longitudinal sliding frame located above the longitudinal slide rail and used for connection with the cylinder support mechanism, a longitudinal roller assembly rotatably connected to the longitudinal sliding frame and slidably connected to the longitudinal slide rail, and a longitudinal drive assembly fixedly connected to the longitudinal support frame and whose output end is connected to the longitudinal sliding frame.

[0005] By adopting the above technical solution, the longitudinal drive component of the linear transmission module outputs push-pull power to drive the longitudinal sliding frame to perform linear translation along the longitudinal slide rail, and then uses the cylinder support mechanism to drive the cylinder mechanism to move back and forth; the liquid experimental medium inside the cylinder mechanism is forced to generate turbulence and apply dynamic impact load to the component under test, and the deformation detection mechanism simultaneously acquires the compressive strain and structural displacement data of the corrugated plate mechanism and the insulation module mechanism; this application constructs a stable uniaxial forced vibration physical test environment, and restores the dynamic process of the liquid experimental medium continuously impacting the multilayer thin film enclosure structure in a closed container, thereby providing a complete hardware data acquisition basis for quantitatively evaluating the impact resistance performance and structural fatigue damage degree of the component under test.

[0006] Preferably, the swaying excitation component further includes a vertical moving mechanism and a horizontal moving mechanism connected to the moving end of the vertical moving mechanism and located above the vertical moving mechanism; The longitudinal moving mechanism is connected to the moving end of the lateral moving mechanism and is located above the lateral moving mechanism; The cylindrical body mechanism is connected to the cylindrical body support mechanism and is located above the cylindrical body support mechanism.

[0007] By adopting the above technical solution, the bottom vertical moving mechanism, the middle horizontal moving mechanism, and the top longitudinal moving mechanism operate synchronously and collaboratively, jointly driving the upper cylinder support mechanism and cylinder mechanism to perform multi-axis composite linear translation in a three-dimensional spatial coordinate system. The liquid experimental medium inside the cylinder mechanism is forced to generate a three-dimensional dynamic swaying load including complex free liquid surface rolling. This application utilizes the vertical and horizontal orthogonal nested design of the multi-stage drive platform to complete the spatial displacement dimension of the test system, reproducing the heave, sway, and transverse sway coupled mechanical environment experienced by fluid storage and transportation equipment in real ocean navigation, thereby effectively broadening the coverage of the experimental equipment for complex sea state physical simulation.

[0008] Preferably, the cylindrical body mechanism includes a cylindrical body, limiting flanges respectively sleeved on the outer walls of both ends of the cylindrical body, end cap assemblies respectively located at both ends of the cylindrical body, bolt fixing assemblies for connecting the end cap assemblies and the limiting flanges and arranged in an array along the periphery of the cylindrical body, and a liquid inlet provided on the outer wall of the cylindrical body and communicating with the interior of the cylindrical body; the heat insulation module mechanism is tightly connected to the inner wall of the end cap assembly, the corrugated plate mechanism is tightly connected to the heat insulation module mechanism, and the periphery of the corrugated plate mechanism is welded to the inner wall of the cylindrical body.

[0009] By adopting the above technical solution, a closed test space is constructed inside the cylinder body. The cooperation of the end cap assembly, the limiting flange and the bolt fixing assembly ensures the sealing and leakage prevention of the experimental medium during violent shaking. The liquid inlet provides an interface for fluid injection. This application stabilizes the internal test components through a combination of welding and tight fitting assembly, ensuring the stability of the fluid dynamics test environment and the safety of the structural operation.

[0010] Preferably, the deformation detection mechanism includes a strain gauge detection assembly disposed between the corrugated plate mechanism and the insulation module mechanism, and a displacement detection assembly connected to the end cap assembly and extending into the inner side of the end cap assembly to press against the side wall of the insulation module mechanism.

[0011] By adopting the above technical solution, the strain gauge detection component and the displacement detection component simultaneously capture data on internal micro-strain and external macro-displacement, respectively. This application adopts a detection layout that combines built-in and external penetration, which increases the dimension of mechanical monitoring and improves the accuracy of test data.

[0012] Preferably, the longitudinal support frame is connected to the transverse moving mechanism; the transverse moving mechanism includes a transverse support frame connected to the moving end of the vertical moving mechanism, a transverse slide rail connected to the transverse support frame, a transverse sliding frame located above the transverse slide rail and used for connection with the longitudinal support frame, a transverse roller assembly rotatably connected to the transverse sliding frame and slidably connected to the transverse slide rail, and a transverse drive assembly fixedly connected to the transverse support frame and whose output end is connected to the transverse sliding frame; the vertical moving mechanism includes a vertical support base and a vertical drive assembly fixedly connected to the vertical support base and whose output end is connected to the transverse support frame; a plurality of the vertical drive assemblies are inserted on the vertical support base and arranged in an array along the plane of the vertical support base.

[0013] By adopting the above technical solution, the lateral movement mechanism and the longitudinal movement mechanism form a spatial orthogonal stacked layout, making the power output of the two axes independent and without interference. This application improves the flexibility of composite motion trajectory planning and expands the simulation range of impact loads in the horizontal plane. The arrayed arrangement of the vertical drive components in this application disperses the concentrated pressure of the heavy-duty equipment above, providing a balanced vertical support force. This application prevents the overall lifting platform from tilting when subjected to eccentric loads, ensuring the stability of the heavy-duty cylinder mechanism during vertical lifting and sinking test operations.

[0014] Preferably, it also includes a level detector and a speed detector; The velocity detector is used to detect the velocity or acceleration of the oscillating excitation component; The liquid level detector is used to detect the liquid level height of the experimental medium inside the detection cylinder mechanism.

[0015] By adopting the above technical solution and through the coordinated operation of the velocity detector and the liquid level detector, the experimental device has the hardware foundation to simultaneously extract the deformation data of the component under test under the combined working conditions of multi-gradient displacement velocity and multi-interval liquid level height; the physical correspondence between external dynamic excitation variables, internal fluid boundary variables and structural mechanical deformation variables is quantified, and the data sampling dimensions of fluid dynamic performance evaluation are expanded.

[0016] Preferably, the cylinder support mechanism includes a cylinder support frame and a peripheral turntable assembly connected to the cylinder support frame and located between the cylinder support frame and the longitudinal sliding frame; the peripheral turntable assembly includes a turntable base connected to the moving end of the longitudinal moving mechanism, a turntable guide seat connected to the turntable base, a turntable gear ring component sleeved on the outside of the turntable guide seat and connected to the bottom side of the cylinder support frame, a turntable drive component connected to the turntable base, and a turntable drive gear connected to the output end of the turntable drive component and meshing with the turntable gear ring component; The cylindrical support frame includes a support base connected to the turntable toothed ring component, a first arc-shaped support connected to the support base, and a second arc-shaped support corresponding to the first arc-shaped support. Both the first arc-shaped support and the second arc-shaped support are used to movably support the cylindrical mechanism. The cylindrical support mechanism also includes a rotating and rolling assembly connected to the cylindrical support frame and sleeved on the outside of the cylindrical mechanism. The rotating and rolling assembly includes a rolling toothed ring sleeved on the outer wall of the cylindrical mechanism, a rolling drive component fixedly connected to the second arc-shaped support, a rolling drive gear connected to the output end of the rolling drive component and meshing with the rolling toothed ring, a guide limiting seat connected to the support base and sleeved on the periphery of the cylindrical mechanism, a rolling guide protrusion sleeved on the outer wall of the cylindrical mechanism and movably inserted into the guide limiting seat, and a rolling limiting part connected to the first arc-shaped support and the second arc-shaped support respectively and used to approach the outer wall of the cylindrical mechanism.

[0017] By adopting the above technical solution and utilizing the mechanical meshing transmission mechanism of gear and ring gears, quantitative control of the overall swing angle and rotation speed of the cylindrical support frame is achieved. This application simulates yaw or torsional motion conditions, expanding the simulation of the experimental device in multi-directional mechanical environments. The arc-shaped lifting combined with the gear-driven enveloping rolling structure enables the cylindrical mechanism to perform circumferential flipping motion. Under the dual constraints of the guide limit seat and the rolling limit part, this application prevents the cylindrical storage tank from derailing or slipping, ensuring the safety of the transmission process and the standardization of the motion trajectory of the test object.

[0018] Preferably, the number of strain gauge detection components is multiple, and the distribution positions of the strain gauge detection components adopt any one or any combination of the following schemes: The strain gauge detection assembly is located at the upper part of the corrugated plate mechanism; The strain gauge detection assembly is located in the middle of the corrugated plate mechanism; The strain gauge detection assembly is located at the lower part of the corrugated plate mechanism.

[0019] By adopting the above technical solution, a structural mechanics perception network covering the entire height dimension of the corrugated plate mechanism was constructed, which is adapted to the complex fluid impact environment with fluctuations in liquid level height difference; it ensures that effective physical deformation feedback signals can be output when facing low liquid level hydraulic jump or high liquid level standing wave excitation conditions; it improves the spatial distribution completeness of dynamic response data extraction, and provides comprehensive data acquisition support for subsequent quantitative evaluation of the overall fatigue damage characteristics of multi-layer membrane enclosure structures under various liquid filling ratios.

[0020] Preferably, the corrugated plate mechanism includes a main corrugated plate and a secondary corrugated plate; the insulation module mechanism includes a main insulation module connected to the main corrugated plate and located between the main corrugated plate and the secondary corrugated plate, and a secondary insulation module connected to the secondary corrugated plate and located between the secondary corrugated plate and the end cap assembly.

[0021] By adopting the above technical solution, a four-layer nested structure with alternating primary and secondary layers is used as the test target to simulate the stress transmission law and interlayer extrusion state of a multi-layer composite structure under liquid sloshing impact. This application enhances the correspondence between the experimental model and the actual project and improves the accuracy of the test data.

[0022] A method for detecting swaying using the aforementioned swaying experimental apparatus includes the following steps: S1. Connect the deformation detection mechanism to the corrugated plate mechanism and the insulation module mechanism respectively, and attach and fix the insulation module mechanism to the corrugated plate mechanism. Then, insert the assembled corrugated plate mechanism and insulation module mechanism into the cylinder mechanism and seal them at both ends of the cylinder mechanism respectively. S2. Fill the cylindrical mechanism with a preset volume of experimental medium, and keep the experimental medium in a partially filled state inside the cylindrical mechanism to allow space for swaying. S3. By controlling the vertical moving mechanism, the horizontal moving mechanism, the longitudinal moving mechanism and the cylinder support mechanism to operate in coordination, the cylinder mechanism located above the cylinder support mechanism is made to perform a spatial multi-axis translation and multi-directional rotation composite motion, so that the experimental medium inside the cylinder mechanism generates a dynamic impact load. S4. During the swaying process, the deformation and displacement data of the corrugated plate mechanism and the insulation module mechanism under dynamic stress are collected in real time and synchronously by the deformation detection mechanism. S5. Combining the motion output parameters of the vertical moving mechanism, the horizontal moving mechanism, the longitudinal moving mechanism, and the cylinder support mechanism, analyze the collected deformation and displacement data to obtain the fatigue damage degree of the corrugated plate mechanism and the insulation module mechanism under different swaying conditions.

[0023] By adopting the above technical solutions, a complete testing workflow from hardware assembly and environment construction to dynamic stimulation and data analysis has been formed. This application aligns the mechanical response data measured at the front end with the kinematic parameters output by the back end system on the time axis to obtain life decay data under different working conditions, thereby improving the rigor of data analysis and the reliability of the testing method.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. A swaying test apparatus, which outputs push-pull power as the longitudinal drive component of a linear transmission module to drive a longitudinal sliding frame to perform linear translation along a longitudinal slide rail, and then uses a cylindrical support mechanism to drive the cylindrical mechanism to perform reciprocating motion; the liquid test medium inside the cylindrical mechanism is forced to generate swaying and applies dynamic impact load to the component to be tested, and the deformation detection mechanism simultaneously acquires the compressive strain and structural displacement data of the corrugated plate mechanism and the insulation module mechanism; this application constructs a stable uniaxial forced vibration physical test environment, and restores the dynamic process of the liquid test medium continuously impacting the multilayer thin film enclosure structure in a closed container, thereby providing a complete hardware data acquisition basis for quantitatively evaluating the impact resistance and structural fatigue damage of the component to be tested; 2. A swaying test device. This application utilizes a first arc-shaped support and a second arc-shaped support combined with a gear transmission mechanism to construct a stable cylindrical self-rotation covering support system, realizing the physical simulation of the rolling action and circumferential forced impact condition of a heavy-duty storage tank model. The cooperation between the rolling guide protrusion and the guide limit seat restricts the axial movement deviation of the cylindrical mechanism in complex swaying tests. The rolling limit part provides radial anti-detachment constraint for the cylindrical mechanism, ensuring the transmission stability and support safety of the large fluid testing equipment when conducting multi-degree-of-freedom liquid swaying vibration experiments. 3. A method for detecting tank swaying, through an operation process combining hardware assembly and multi-dimensional motion control, restores the dynamic pressure state of the tank under complex fluid impact environment, and forms a closed-loop test network by collecting multi-dimensional mechanical response signals and analyzing kinematic parameters, quantifying the fatigue life decay of multi-layer composite test pieces under alternating loads, and providing a complete data acquisition method for evaluating the impact resistance performance and optimizing the structural stiffness of fluid storage and transportation equipment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of an embodiment of a swaying experimental device according to this application. Figure 1 .

[0026] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of a swaying experimental device according to this application.

[0027] Figure 3 This is a three-dimensional structural diagram of an embodiment of a swaying experimental device according to this application. Figure 2 .

[0028] Figure 4 This is a three-dimensional structural diagram of the corrugated plate mechanism and the heat insulation module mechanism of an embodiment of the swaying experimental device of this application.

[0029] Figure 5 This is a schematic flowchart illustrating the steps of an embodiment of a tank sloshing detection method according to this application.

[0030] Explanation of reference numerals in the attached figures: 1. Vertical moving mechanism; 11. Vertical support base; 12. Vertical drive assembly; 2. Lateral moving mechanism; 21. Lateral support frame; 22. Lateral slide rail; 23. Lateral sliding frame; 24. Lateral roller assembly; 25. Lateral drive assembly; 3. Longitudinal moving mechanism; 31. Longitudinal support frame; 32. Longitudinal slide rail; 33. Longitudinal sliding frame; 34. Longitudinal roller assembly; 35. Longitudinal drive assembly; 4. Cylinder support mechanism; 41. Cylinder support frame; 411. Support base; 412. First arc-shaped support; 413. Second arc-shaped support; 42. Peripheral turntable assembly; 421. Turntable base; 422. Turntable guide seat; 423. Turntable gear ring assembly; 424. Turntable drive assembly; 425. Turntable drive gear; 43. Rotating and rolling assembly; 431. Rolling gear ring; 432. Rolling drive assembly; 433. Rolling drive gear; 434. Guide limit seat; 435. Rolling guide flange; 436. Rolling limit part; 5. Cylinder Mechanism; 51. Cylinder Body; 52. Limiting Protrusion; 53. End Cap Assembly; 54. Bolt Fixing Assembly; 55. Liquid Inlet; 6. Corrugated Plate Mechanism; 61. Main Corrugated Plate; 62. Secondary Corrugated Plate; 7. Insulation Module Mechanism; 71. Main Insulation Module; 72. Secondary Insulation Module; 8. Deformation Detection Mechanism; 81. Strain Gauge Detection Assembly; 82. Displacement Detection Assembly. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1 to 5 This application will be described in further detail.

[0032] This application discloses a swaying experimental apparatus and a swaying detection method. (Refer to...) Figure 1 and Figure 2 A swaying test apparatus includes a swaying excitation component, a cylindrical mechanism 5, a deformation detection mechanism 8, and a component to be tested. The component to be tested is mounted on the cylindrical mechanism 5; during the shaking test, the cylindrical mechanism 5 is filled with a liquid test medium; the deformation detection mechanism 8 is connected to the component to be tested. The swaying excitation component is connected to the cylinder mechanism 5 through the cylinder support mechanism 4, and is used to drive the cylinder mechanism 5 to move so as to impact the component to be tested when the liquid experimental medium sways. The component to be tested includes a corrugated plate mechanism 6 sealed inside the cylindrical mechanism 5 and located at both ends of the cylindrical mechanism 5, and an insulating module mechanism 7 tightly connected to the corrugated plate mechanism 6; the corrugated plate mechanism 6 and the cylindrical mechanism 5 form a closed space, and the liquid test medium is located in the closed space. The deformation detection mechanism 8 is connected to the corrugated plate mechanism 6 and the insulation module mechanism 7 respectively; The swaying excitation component includes a longitudinal moving mechanism 3; the cylinder support mechanism 4 is connected to the moving end of the longitudinal moving mechanism 3 and is located above the longitudinal moving mechanism 3. The longitudinal moving mechanism 3 includes a longitudinal support frame 31, a longitudinal slide rail 32 connected to the longitudinal support frame 31, a longitudinal sliding frame 33 located above the longitudinal slide rail 32 and used for connection with the cylinder support mechanism 4, a longitudinal roller assembly 34 rotatably connected to the longitudinal sliding frame 33 and slidably connected to the longitudinal slide rail 32, and a longitudinal drive assembly 35 fixedly connected to the longitudinal support frame 31 and whose output end is connected to the longitudinal sliding frame 33.

[0033] In the dynamic vibration test procedure of this application, the longitudinal drive assembly 35 is activated and applies a pushing and pulling force to the longitudinal sliding frame 33. Under this pressure, the longitudinal sliding frame 33 moves linearly along the longitudinal slide rail 32, thereby driving the cylindrical support mechanism 4 to synchronously reciprocate. This forces the liquid test medium inside the sealed space to slosh and applies a dynamic impact load to the surface of the component under test. Under this scouring state, the deformation detection mechanism 8 captures in real time the strain and displacement data generated by the corrugated plate mechanism 6 and the insulation module mechanism 7 in response to the impact load. This application constructs a forced vibration test environment through the layered connection of the sliding guide platform and the pressure-bearing component under test, reproducing the dynamic process of the liquid test medium impacting the multilayer thin-film enclosure structure under uniaxial translation within a closed container. This provides a mechanical data acquisition method for subsequent evaluation of fatigue damage and structural impact resistance of the component under test. The longitudinal drive assembly 35 is preferably a linear transmission module consisting of a hydraulic cylinder or a servo motor paired with a ball screw.

[0034] Furthermore, the swaying excitation component also includes a vertical moving mechanism 1 and a horizontal moving mechanism 2. In this application, the horizontal moving mechanism 2 is mounted on the power output moving end of the vertical moving mechanism 1 and is located above the vertical moving mechanism 1. The vertical moving mechanism 3 is stacked and mounted on the power output moving end of the horizontal moving mechanism 2 and is located above the horizontal moving mechanism 2. The cylinder mechanism 5 is fixedly mounted on top of the cylinder support mechanism 4 and establishes a stable support force connection with the cylinder support mechanism 4. The whole structure forms a three-dimensional spatial bearing structure that is orthogonally nested from bottom to top. In the continuous operation steps of performing multi-degree-of-freedom vibration test, the vertical moving mechanism 1 starts and drives the upper overall platform to perform forced vertical lifting displacement, while the horizontal moving mechanism 2 independently drives the upper platform. The longitudinal moving mechanism 3 synchronously drives the upper cylindrical support mechanism 4 and the mounted cylindrical mechanism 5 to translate and slide along the horizontal longitudinal axis. The coordinated action of the three moving mechanisms forces the top-mounted cylindrical mechanism 5 to perform multi-axis composite linear translational motion in the three-dimensional spatial coordinate system. This layered assembly structure utilizes the vertical and horizontal orthogonal superposition design of the multi-stage drive platform to supplement and improve the spatial displacement dimension of the experimental system, reproduce the heave, sway, and transverse sway mechanical environment encountered by fluid storage and transportation equipment in actual ocean navigation, and cause the liquid experimental medium inside the cylindrical mechanism 5 to generate a three-dimensional dynamic swaying load including complex free liquid surface rolling, thus broadening the coverage of the experimental equipment for physical simulation of complex sea conditions.

[0035] Furthermore, such as Figure 1 and Figure 2 As shown, the cylinder mechanism 5 includes a cylinder body 51, a limiting flange 52, an end cap assembly 53, a bolt fixing assembly 54, and a liquid inlet 55; the corrugated plate mechanism 6 of this application is welded to the inner wall of the cylinder body 51, the heat insulation module mechanism 7 is tightly connected to the corrugated plate mechanism 6, the end cap assembly 53 is located at both ends of the cylinder body 51 and is tightly connected to the inner wall of the heat insulation module mechanism 7, the limiting flange 52 is sleeved on the outer walls of both ends of the cylinder body 51, the bolt fixing assembly 54 is arranged in an array along the periphery of the cylinder body 51 and connects the end cap assembly 53 and the limiting flange 52, and the liquid inlet 55 is fixed to the outer wall of the cylinder body 51 and communicates with the internal space of the cylinder body 51; In this application, the corrugated plate mechanism 6 is fixed inside the cylinder body 51, the insulation module mechanism 7 is physically bonded to the surface of the corrugated plate mechanism 6, the end cap assembly 53 covers the end space of the cylinder body 51, and the bolt fixing assembly 54 applies axial locking and clamping action to the end cap assembly 53 and the limiting protrusion 52. The experimental medium flows into the cylinder body 51 through the liquid inlet 55. Subsequently, the cylinder mechanism 5 undergoes spatial displacement and attitude deflection under the drive of the external test bench. This application utilizes layered bonding and array locking to construct a closed mechanical test environment, ensuring the leakage prevention performance of the cylinder body 51 under dynamic impact conditions. The bolt fixing assembly 54 provides a uniformly distributed circumferential holding force, enhancing the structural stability of the corrugated plate mechanism 6 and the insulation module mechanism 7 under alternating loads. The liquid inlet 55 provides a channel for the injection of internal fluid experimental medium and the discharge of residual liquid.

[0036] Specifically, such as Figure 2 As shown, the deformation detection mechanism 8 includes a strain gauge detection assembly 81 and a displacement detection assembly 82. In this application, the strain gauge detection assembly 81 is inserted between the interface of the corrugated plate mechanism 6 and the insulation module mechanism 7 to form a physical clamping assembly. The strain gauge detection assembly 81 can also be pasted onto the corrugated plate mechanism 6. The displacement detection component 82 is fixedly connected to the end cap component 53 and extends into the end cap component 53 to maintain a top-pressure fit with the outer wall of the insulation module mechanism 7. During the dynamic operation of the swaying condition, the impact load generated by the internal experimental medium acts on the corrugated plate mechanism 6, causing structural compression deformation. The strain gauge detection component 81 synchronously collects the surface micro-stress change data of the corrugated plate mechanism 6. As the mechanical load is transmitted to the outside, it causes the insulation module mechanism 7 to shift as a whole. The side wall of the insulation module mechanism 7 overcomes the preset top pressure of the displacement detection component 82 and pushes the displacement detection component 82 to change its stroke. Thus, the displacement detection component 82 outputs macroscopic position deviation data. This application combines the dual acquisition channels of interlayer surface stress sensing and external structural relative displacement monitoring. The strain gauge detection component 81 and the displacement detection component 82 work together to construct a comprehensive mechanical monitoring loop, increasing the physical dimension of experimental test data collection and realizing the synchronous recording of stress transmission process and structural deformation. This provides an objective quantitative data basis for subsequent evaluation of the compression state and fatigue damage degree of the multi-layer enclosure system.

[0037] The displacement detection component 82 is preferably a dial indicator or a micrometer.

[0038] More specifically, such as Figure 1As shown, the longitudinal support frame 31 is connected to the transverse moving mechanism 2; the transverse moving mechanism 2 includes the transverse support frame 21, the transverse slide rail 22, the transverse sliding frame 23, the transverse roller assembly 24, and the transverse drive assembly 25. This transverse moving mechanism 2 is structurally fixed to the moving end of the vertical moving mechanism 1 via the transverse support frame 21. The transverse slide rail 22 is laid and connected to the surface of the transverse support frame 21. The transverse sliding frame 23 is mounted above the transverse slide rail 22 and physically connected to the longitudinal support frame 31 supported above. The transverse roller assembly 24 is rotatably mounted on the bottom side of the transverse sliding frame 23 and forms a sliding guide engagement with the transverse slide rail 22. The transverse drive assembly 25 is fixedly installed on the side of the transverse support frame 21, and its output end establishes a power transmission assembly with the transverse sliding frame 23. During the horizontal lateral movement, the transverse drive assembly 25 is activated and applies a linear pushing and pulling force to the transverse sliding frame 23. The sliding frame 23 drives the transverse roller assembly 24 mounted on the bottom side to roll and slide along the laying direction of the transverse slide rail 22, thereby forcing the transverse sliding frame 23 together with the longitudinal support frame 31 mounted on the transverse sliding frame 23 to move as a whole along the transverse axis. This application uses the rolling contact surface formed by the transverse roller assembly 24 and the transverse slide rail 22 to reduce the frictional resistance of the test platform when carrying heavy objects for translation. The transverse drive assembly 25 constructs an independent transverse power output circuit, which, combined with the longitudinal moving mechanism, realizes the two-axis orthogonal composite translation function of the equipment in the spatial horizontal plane, ensuring the stability and trajectory straightness of the device when subjected to transverse forced displacement, and reducing the interference caused by mechanical jamming to amplitude simulation.

[0039] The lateral drive assembly 25 is preferably a linear transmission module consisting of a hydraulic cylinder or a servo motor paired with a ball screw.

[0040] In addition, such as Figure 1As shown, the vertical moving mechanism 1 includes a vertical support base 11 and vertical drive components 12. In this application, the vertical moving mechanism 1 uses the vertical support base 11 as the underlying structural support. Multiple vertical drive components 12 are inserted and installed on the vertical support base 11 and arranged in an array along the plane of the vertical support base 11. The power output end of the vertical drive components 12 establishes a mechanical transmission connection with the horizontal support frame 21 located above. During the simulated vertical heave operation, the arrayed vertical drive components 12 synchronously perform linear extension and retraction movements in the vertical direction, jointly applying an upward thrust or force to the horizontal support frame 21. The downward traction force causes the horizontal support frame 21 to move the upper composite test platform along the vertical main axis, resulting in overall lifting and translation. This application utilizes the arrayed layout of multiple vertical drive components 12 and the multi-point synchronous lifting design to disperse the concentrated pressure transmitted from the heavy-duty test equipment above to the bottom platform, providing the horizontal support frame 21 with multi-point distributed and balanced vertical support bearing capacity. This avoids the physical structure tilting of the overall test platform under the load-bearing unbalanced state, ensuring the system's operational stability and support safety when the heavy storage tank performs vertical displacement testing.

[0041] The vertical drive assembly 12 is preferably a hydraulic cylinder.

[0042] Furthermore, this application adds a liquid level detector and a velocity detector. The velocity detector can be fixedly mounted on the power output end of the swaying excitation component or on the support frame. The liquid level detector is installed outside or inside the cylinder mechanism 5 with its detection end facing the liquid experimental medium contained inside the cylinder mechanism 5. During the continuous operation steps of performing the dynamic forced swaying test, the swaying excitation component performs spatial forced displacement. The velocity detector mounted on the swaying excitation component tracks and outputs the instantaneous velocity and acceleration dynamic physical parameters of the swaying excitation component in real time during the movement. The liquid experimental medium inside the cylinder mechanism 5 undergoes free surface rolling and swaying under the action of external excitation load. The liquid level detector on the side of the cylinder 5 synchronously monitors and continuously outputs dynamic liquid level height change data of the liquid experimental medium inside the cylinder 5. This application constructs a synchronous data acquisition loop for the motion input conditions of the mechanical drive end and the physical response state of the fluid under pressure. Through the coordinated monitoring of the liquid level detector and the velocity detector, this experimental device has the hardware capability to synchronously record the compressive deformation data of the component under test under composite test conditions of multi-gradient displacement velocity and multi-interval liquid level height. It quantifies the physical correspondence between external mechanical dynamic excitation variables, internal fluid boundary state variables and mechanical deformation variables of the component under test, and increases the data sampling dimension of fluid dynamics evaluation. In addition, through the setting of the liquid level detector and the velocity detector, this invention can realize the function of recording the deformation data of the component under test under various speeds and liquid levels.

[0043] And, as Figure 1 and Figure 2 As shown, the cylinder support mechanism 4 includes a cylinder support frame 41 and a peripheral turntable assembly 42. The peripheral turntable assembly 42 includes a turntable guide seat 422 connected to the turntable base 421, a turntable gear ring component 423, a turntable drive component 424, and a turntable drive gear 425. In this application, the peripheral turntable assembly 42 is assembled between the longitudinal sliding frame 33 and the cylinder support frame 41. The turntable base 421 is structurally fixed to the moving end of the longitudinal moving mechanism 3. The turntable guide seat 422 is installed on the surface of the turntable base 421. The turntable gear ring component 423 is sleeved on the outside of the turntable guide seat 422 and its top is physically connected to the bottom side of the cylinder support frame 41. The turntable drive component 424 is fixed to the side of the turntable base 421. The turntable drive gear 425 is assembled to the power output end of the turntable drive component 424 and forms a mechanical meshing transmission cooperation with the turntable gear ring component 423. In the control steps of performing horizontal rotation or spatial oscillation simulation, the turntable drive component 424 outputs rotational driving force to the turntable drive gear 425. The turntable drive gear 425 rotates and, through the meshing force of the tooth surfaces, pushes the turntable gear ring component 423. The forced turntable gear ring component 423 rotates along the circumferential guide trajectory with the turntable guide seat 422 as the rotation pivot, thereby driving the top-connected cylinder support frame 41 and the mounted storage tank to undergo overall deflection and reciprocating oscillation around the vertical central axis. This application utilizes the gear ring meshing mechanism to construct a stable horizontal rotation system, realizing the quantitative adjustment of the oscillation angle and rotation frequency of the heavy-duty storage tank model, providing the test platform with horizontal yaw and torsional motion dimensions, expanding the physical reproduction capability of the multi-degree-of-freedom fluid swaying test device for the complex oscillation impact environment in actual sea conditions, and enhancing the functional applicability of the experimental equipment in complex mechanical loading.

[0044] The turntable drive component 424 is preferably a motor.

[0045] Furthermore, such as Figures 1 to 3As shown, the cylinder support frame 41 includes a support base 411, a first arc-shaped support 412, and a second arc-shaped support 413. The cylinder support mechanism 4 also includes a rotating rolling assembly 43. The rotating rolling assembly 43 includes a rolling toothed ring 431, a rolling drive component 432, a rolling drive gear 433, a guide limit seat 434, a rolling guide flange 435, and a rolling limit part 436. The cylindrical support frame 41 of this application is structurally connected to the turntable gear ring component 423 below through the support base 411. The first arc-shaped support 412 and the second arc-shaped support 413 are fixedly assembled on the support base 411 and form a semi-enclosed movable support for the cylindrical mechanism 5. The rotating rolling component 43 is assembled between the cylindrical support frame 41 and the cylindrical mechanism 5. The rolling gear ring 431 and the rolling guide flange 435 are fixedly sleeved and installed on the outer side wall surface of the cylindrical mechanism 5. The rolling drive component 432 is fixedly installed on the side of the second arc-shaped support 413. The rolling drive gear 433 is assembled on the power output end of the rolling drive component 432 and establishes a tooth surface mechanical meshing connection with the outer ring rolling gear ring 431. The guide limit seat 434 is fixed to the support base 411 and forms a sliding insertion guide fit with the rolling guide flange 435. The rolling limit part 436 is fixed on the first arc-shaped support 412 and the second arc-shaped support 413 respectively and distributed close to the outer side wall of the cylindrical mechanism 5. During the simulated rolling motion operation, the rolling drive component 432 starts and outputs rotational power to the rolling drive gear 433. The rolling drive gear 433 actuates the rolling ring 431 through a gear meshing transmission mechanism. The forced rolling ring 431 drives the cylinder mechanism 5 to rotate and slide circumferentially along the central axis of the cylinder under the support of the first arc-shaped bracket 412 and the second arc-shaped bracket 413. During the rotation and sliding, the rolling guide protrusion 435 sleeved on the surface of the cylinder mechanism 5 performs synchronous circumferential sliding friction on the inner side of the guide limit seat 434 to maintain the axial position lock of the system. At the same time, the rolling limit part 436 arranged on the side periphery When the blocking cylinder mechanism 5 is subjected to rotational force, it may experience radial displacement and structural detachment. This application utilizes the first arc-shaped support 412 and the second arc-shaped support 413 in combination with a gear transmission mechanism to construct a stable cylinder rotation covering support system, realizing the physical simulation of the rolling action and circumferential forced impact conditions of the heavy-duty storage tank model. The cooperation between the rolling guide protrusion 435 and the guide limit seat 434 limits the axial movement deviation of the cylinder mechanism 5 in complex swaying tests. The rolling limit part 436 provides radial anti-detachment constraint for the cylinder mechanism 5, ensuring the transmission stability and support safety of the large fluid testing equipment when conducting multi-degree-of-freedom liquid swaying vibration experiments.

[0046] The rolling drive component 432 is preferably a motor.

[0047] Furthermore, the number of strain gauge detection components 81 is multiple, and the distribution of the strain gauge detection components 81 adopts any one or any combination of the following schemes: The strain gauge detection assembly 81 is located on the upper part of the corrugated plate mechanism 6; The strain gauge detection assembly 81 is located in the middle of the corrugated plate mechanism 6; The strain gauge detection assembly 81 is located at the lower part of the corrugated plate mechanism 6.

[0048] In this application, multiple strain gauge detection components 81 are respectively arranged and physically connected to the upper, middle, and lower regions of the corrugated plate mechanism 6, forming a multi-height node array assembly structure. During the dynamic swaying test with different filling ratios, the liquid test medium at a preset liquid level inside the cylinder mechanism 5 is forced to generate multi-directional rolling and swaying, regularly impacting the corresponding height surface of the corrugated plate mechanism 6. At this time, the strain gauge detection components 81 arranged in the upper, middle, or lower parts of the corrugated plate mechanism 6 capture the local micro-stress changes and strain data of the pressure area in real time according to the actual impact elevation of the liquid test medium. This application constructs a structural mechanics monitoring network covering the entire height range of the corrugated plate mechanism 6, adapting to the complex fluid test environment with varying liquid level height differences. It ensures that the corrugated plate mechanism 6 can output effective physical deformation feedback signals when facing low-level hydraulic jump impacts or high-level standing wave impacts, improving the spatial distribution completeness of fluid dynamic response data acquisition, and providing full-coverage data acquisition support for subsequent quantitative analysis of the overall fatigue damage characteristics of multi-layer thin-film enclosure structures under different loading rates. In a preferred embodiment, the strain gauge detection assembly 81 is a strain gauge sensor in the prior art, which is a sensor based on the resistance strain effect. It measures physical quantities such as force, pressure, and torque by causing a change in resistance through mechanical deformation. Its core consists of a matrix material, a metal strain wire / foil, an insulating protective sheet, and a wire.

[0049] Furthermore, such as Figure 4As shown, the corrugated plate mechanism 6 includes a main corrugated plate 61 and a secondary corrugated plate 62; the insulation module mechanism 7 includes a main insulation module 71 and a secondary insulation module 72. In this application, the main corrugated plate 61 and the main insulation module 71 are structurally connected. The main insulation module 71 is assembled between the main corrugated plate 61 and the secondary corrugated plate 62 to form a stacked pressure-bearing structure. The secondary corrugated plate 62 and the secondary insulation module 72 are physically fitted together. The secondary insulation module 72 is positioned between the secondary corrugated plate 62 and the external end cap assembly 53, thus forming a multi-layered composite test structure nested sequentially from the inside out. In the dynamic mechanical transmission step of simulating fluid impact conditions, the swaying excitation load generated by the experimental medium inside the tank first acts on the surface of the main corrugated plate 61. The main corrugated plate 61 undergoes microscopic deformation under pressure and transmits the surface stress along the impact direction of the medium to the... The main insulation module 71, after being buffered by the force, transmits the distributed load layer by layer to the secondary corrugated plate 62. The secondary corrugated plate 62 and the secondary insulation module 72 undergo synchronous co-extrusion deformation and are provided with rigid resistance support at the end by the end cap assembly 53. This application restores the alternating primary and secondary protection configuration of the solid membrane liquid cargo containment system. In the multi-degree-of-freedom liquid sloshing test, it reproduces the stress gradient decay process and interlayer mechanical mutual extrusion state of the multi-layer composite membrane liquid cargo containment when facing dynamic fluid impact. It provides a real physical entity model for the mechanical response analysis of multi-layer flexible boundaries under dynamic excitation environment and improves the industrial application applicability of fatigue detection data of fluid testing device.

[0050] Specifically, such as Figure 5 As shown, this application also discloses a swaying detection method using a swaying experimental apparatus, comprising the following steps: S1. Connect the deformation detection mechanism 8 to the corrugated plate mechanism 6 and the insulation module mechanism 7 respectively, and attach and fix the insulation module mechanism 7 to the corrugated plate mechanism 6. Then, insert the assembled corrugated plate mechanism 6 and insulation module mechanism 7 into the cylinder mechanism 5 and seal them at both ends of the cylinder mechanism 5 respectively. Step S1 provides a hardware foundation for subsequent fluid dynamics pressure testing by establishing a complete internal mechanical monitoring network and completing the closed assembly.

[0051] S2. Fill the cylindrical mechanism 5 with a preset volume of experimental medium, and keep the experimental medium in a partially filled state inside the cylindrical mechanism 5 to reserve space for swaying; step S2 creates a free surface of fluid by controlling the liquid level of the medium, so that the experimental medium has the physical conditions to overturn and slap when it moves.

[0052] S3. By controlling the coordinated operation of the vertical moving mechanism 1, the horizontal moving mechanism 2, the longitudinal moving mechanism 3, and the cylinder support mechanism 4, the cylinder mechanism 5 located above the cylinder support mechanism 4 is made to perform a spatial multi-axis translation and multi-directional rotation composite motion, so that the experimental medium inside the cylinder mechanism 5 generates a dynamic impact load. Step S3 uses the spatial control of the bottom-level multi-level drive matrix to superimpose and generate complex motion boundary conditions, thus restoring the liquid sloshing vibration environment suffered by the storage tank in the actual operating environment.

[0053] S4. During the swaying process, the deformation and displacement data of the corrugated plate mechanism 6 and the insulation module mechanism 7 under dynamic stress are collected in real time through the deformation detection mechanism 8. In the continuous alternating test conditions, step S4 continuously captures the micro and macro deformation signals of key structural nodes.

[0054] S5. Combining the motion output parameters of the vertical moving mechanism 1, the horizontal moving mechanism 2, the longitudinal moving mechanism 3, and the cylinder support mechanism 4, the collected deformation and displacement data are analyzed to obtain the fatigue damage degree of the corrugated plate mechanism 6 and the insulation module mechanism 7 under different swaying conditions; Step S5 performs time axis alignment calculations on the mechanical response data of the acquisition end and the kinematic parameters of the drive end, and outputs the life decay index of the system under the corresponding working conditions.

[0055] In the operational steps of this application's testing process, the operator fills the cylindrical mechanism 5 with a preset volume of experimental medium, leaving space for fluid sloshing by maintaining the medium slightly incomplete. Then, the vertical moving mechanism 1, the horizontal moving mechanism 2, the longitudinal moving mechanism 3, and the cylindrical support mechanism 4 are driven to operate synchronously and collaboratively. This forces the cylindrical mechanism 5, mounted above the support mechanism 4, to perform a multi-axis translational and multi-directional rotational composite motion in three-dimensional space. Under this composite motion, the internal experimental medium generates dynamic impact loads and regularly strikes the corrugated plate mechanism 6. During this dynamic mechanical transmission process, the deformation detection mechanism 8 synchronously collects real-time data on the mechanical deformation and structural displacement of the corrugated plate mechanism 6 and the insulation module mechanism 7 under pressure. The system then... The platform then extracts the motion output parameters of the vertical moving mechanism 1, the horizontal moving mechanism 2, the longitudinal moving mechanism 3, and the cylinder support mechanism 4, and performs time-axis alignment calculations with the collected deformation and displacement data to obtain fatigue damage indicators of the corrugated plate mechanism 6 and the insulation module mechanism 7 under different swaying conditions. This application restores the dynamic pressure-bearing state of the storage tank under complex fluid impact environment through an operation process that combines hardware assembly and multi-dimensional motion control. It forms a closed-loop test network by collecting multi-dimensional mechanical response signals and analyzing kinematic parameters, quantifying the fatigue life decay of multi-layer composite test pieces under alternating loads, and providing a complete data acquisition method for evaluating the impact resistance performance and optimizing the structural stiffness of fluid storage and transportation equipment.

[0056] Water is the preferred experimental medium.

[0057] The implementation principle of the swaying test apparatus and swaying detection method in this application is as follows: In the initial testing phase, the operators placed the strain gauge detection assembly 81 and the displacement detection assembly 82 on the interlayer nodes of the main corrugated plate 61, the main insulation module 71, the secondary corrugated plate 62, and the secondary insulation module 72, respectively. The assembled corrugated plate mechanism 6 and insulation module mechanism 7 were then pushed into the cylinder body 51, and the end cap assembly 53 was locked using the bolt fixing assembly 54 to complete the end seal. Subsequently, the experimental medium was injected into the cylinder body 51 through the liquid inlet 55, leaving an unfilled void area.

[0058] After the test is started, the vertical drive component 12 provides lifting action, the horizontal drive component 25 and the longitudinal drive component 35 respectively drive the horizontal sliding frame 23 and the longitudinal sliding frame 33 to slide and translate along the orthogonal track; the turntable drive component 424 drives the turntable toothed ring component 423 to drive the cylinder support frame 41 to swing horizontally, and the rolling drive component 432 drives the cylinder mechanism 5 to axially roll in the arc-shaped support through the rolling toothed ring 431.

[0059] The combined operation of the above mechanisms generates complex wave tumbling and hydraulic jump phenomena inside the cylinder mechanism 5, and the experimental medium regularly impacts the corrugated plate mechanism 6. During this process, the deformation detection mechanism 8 outputs the stress and strain of the pressure surface and the displacement deviation signal of the insulation layer in real time. The control system correlates the above mechanical signals with the three-dimensional running trajectory and acceleration parameters of each mechanism to obtain the stress characteristic model and fatigue damage degree of the corrugated plate mechanism 6 and the insulation module mechanism 7 under different liquid levels and different sloshing frequencies.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A swaying experimental apparatus, characterized in that, The test assembly includes a swaying excitation component, a cylindrical structure (5), a deformation detection mechanism (8), and a component to be tested. The component to be tested is mounted on the cylindrical structure (5). During the swaying experiment, the cylindrical structure (5) is filled with a liquid experimental medium. The deformation detection mechanism (8) is connected to the component to be tested. The swaying excitation component is connected to the cylindrical structure (5) via a cylindrical support mechanism (4) to drive the cylindrical structure (5) to move, so that the liquid experimental medium impacts the component to be tested when it sways. The component to be tested includes a corrugated plate mechanism (6) sealed inside the cylindrical structure (5) and located at both ends of the cylindrical structure (5), and an insulating module mechanism (7) tightly connected to the corrugated plate mechanism (6). The corrugated plate mechanism (6) and the cylindrical structure (5) form a sealed space, and the liquid experimental medium is located in the sealed space. Within the sealed space; the deformation detection mechanism (8) is connected to the corrugated plate mechanism (6) and the insulation module mechanism (7) respectively; the swaying excitation component includes a longitudinal moving mechanism (3); the cylinder support mechanism (4) is connected to the moving end of the longitudinal moving mechanism (3) and located above the longitudinal moving mechanism (3); the longitudinal moving mechanism (3) includes a longitudinal support frame (31), a longitudinal slide rail (32) connected to the longitudinal support frame (31), a longitudinal sliding frame (33) located above the longitudinal slide rail (32) and used to connect with the cylinder support mechanism (4), a longitudinal roller assembly (34) rotatably connected to the longitudinal sliding frame (33) and slidably connected to the longitudinal slide rail (32), and a longitudinal drive assembly (35) fixedly connected to the longitudinal support frame (31) and whose output end is connected to the longitudinal sliding frame (33). The swaying excitation component further includes a vertical moving mechanism (1) and a horizontal moving mechanism (2) connected to the moving end of the vertical moving mechanism (1) and located above the vertical moving mechanism (1); the longitudinal moving mechanism (3) is connected to the moving end of the horizontal moving mechanism (2) and located above the horizontal moving mechanism (2); the cylinder mechanism (5) is connected to the cylinder support mechanism (4) and located above the cylinder support mechanism (4); The cylindrical body mechanism (5) includes a cylindrical body (51), limiting flanges (52) respectively sleeved on the outer walls of both ends of the cylindrical body (51), end cap assemblies (53) respectively located at both ends of the cylindrical body (51), bolt fixing assemblies (54) for connecting the end cap assemblies (53) and the limiting flanges (52) and arranged in an array along the periphery of the cylindrical body (51), and a liquid inlet (55) provided on the outer wall of the cylindrical body (51) and communicating with the interior of the cylindrical body (51); the heat insulation module mechanism (7) is tightly connected to the inner wall of the end cap assembly (53), the corrugated plate mechanism (6) is tightly connected to the heat insulation module mechanism (7), and the periphery of the corrugated plate mechanism (6) is welded to the inner wall of the cylindrical body (51). The deformation detection mechanism (8) includes a strain gauge detection assembly (81) disposed between the corrugated plate mechanism (6) and the thermal insulation module mechanism (7), and a displacement detection assembly (82) connected to the end cap assembly (53) and extending into the inner side of the end cap assembly (53) and pressing against the side wall of the thermal insulation module mechanism (7). The cylindrical support mechanism (4) includes a cylindrical support frame (41) and a peripheral turntable assembly (42) connected to the cylindrical support frame (41) and located between the cylindrical support frame (41) and the longitudinal sliding frame (33); the peripheral turntable assembly (42) includes a turntable base (421) connected to the moving end of the longitudinal moving mechanism (3), a turntable guide seat (422) connected to the turntable base (421), and a turntable toothed ring sleeved on the outside of the turntable guide seat (422) and connected to the bottom side of the cylindrical support frame (41). The component (423), the turntable drive component (424) connected to the turntable base (421), and the turntable drive gear (425) connected to the output end of the turntable drive component (424) and meshing with the turntable gear ring component (423); the cylinder support frame (41) includes a bracket base (411) connected to the turntable gear ring component (423), a first arc-shaped bracket (412) connected to the bracket base (411), and a second arc-shaped bracket (413) corresponding to the first arc-shaped bracket (412). The first arc-shaped bracket (412) and the second arc-shaped bracket (413) are both used to movably support the cylindrical mechanism (5); the cylindrical support mechanism (4) further includes a rotating rolling assembly (43) connected to the cylindrical support frame (41) and sleeved on the outside of the cylindrical mechanism (5); the rotating rolling assembly (43) includes a rolling toothed ring (431) sleeved on the outer wall of the cylindrical mechanism (5), a rolling drive component (432) fixedly connected to the second arc-shaped bracket (413), and a rolling drive component (432) and a rolling drive component (432) The output end is connected to and meshes with the rolling gear ring (431), the guide limiting seat (434) is connected to the bracket base (411) and sleeved on the periphery of the cylindrical mechanism (5), the rolling guide protrusion (435) is sleeved on the outer wall of the cylindrical mechanism (5) and movably inserted in the guide limiting seat (434), and the rolling limiting part (436) is connected to the first arc bracket (412) and the second arc bracket (413) respectively and used to be close to the outer wall of the cylindrical mechanism (5).

2. The swaying experimental apparatus according to claim 1, characterized in that, The longitudinal support frame (31) is connected to the transverse moving mechanism (2); the transverse moving mechanism (2) includes a transverse support frame (21) connected to the moving end of the vertical moving mechanism (1), a transverse slide rail (22) connected to the transverse support frame (21), a transverse sliding frame (23) located above the transverse slide rail (22) and used to connect with the longitudinal support frame (31), a transverse roller assembly (24) rotatably connected to the transverse sliding frame (23) and slidably connected to the transverse slide rail (22), and a transverse drive assembly (25) fixedly connected to the transverse support frame (21) and whose output end is connected to the transverse sliding frame (23); the vertical moving mechanism (1) includes a vertical support base (11) and a vertical drive assembly (12) fixedly connected to the vertical support base (11) and whose output end is connected to the transverse support frame (21); a plurality of the vertical drive assemblies (12) are inserted on the vertical support base (11) and arranged in an array along the plane of the vertical support base (11).

3. The swaying experimental apparatus according to claim 2, characterized in that, It also includes a liquid level detector and a velocity detector; the velocity detector is used to detect the velocity or acceleration of the swaying excitation component; the liquid level detector is used to detect the liquid level height of the liquid experimental medium inside the cylinder mechanism (5).

4. The swaying experimental apparatus according to claim 1, characterized in that, The number of strain gauge detection components (81) is multiple, and the distribution of the strain gauge detection components (81) adopts any one or any combination of the following schemes: the strain gauge detection components (81) are located at the upper part of the corrugated plate mechanism (6); the strain gauge detection components (81) are located at the middle part of the corrugated plate mechanism (6); the strain gauge detection components (81) are located at the lower part of the corrugated plate mechanism (6).

5. The swaying experimental apparatus according to claim 1, characterized in that, The corrugated plate mechanism (6) includes a main corrugated plate (61) and a secondary corrugated plate (62); the insulation module mechanism (7) includes a main insulation module (71) connected to the main corrugated plate (61) and located between the main corrugated plate (61) and the secondary corrugated plate (62), and a secondary insulation module (72) connected to the secondary corrugated plate (62) and located between the secondary corrugated plate (62) and the end cap assembly (53).

6. A method for detecting swaying using the swaying test apparatus as described in any one of claims 1 to 5, characterized in that, Includes the following steps: S1. Connect the deformation detection mechanism (8) to the corrugated plate mechanism (6) and the insulation module mechanism (7) respectively, and attach and fix the insulation module mechanism (7) to the corrugated plate mechanism (6). Then, insert the assembled corrugated plate mechanism (6) and the insulation module mechanism (7) into the cylindrical mechanism (5) and seal them at both ends of the cylindrical mechanism (5) respectively. S2. Fill the cylindrical mechanism (5) with a preset volume of experimental medium, and keep the experimental medium in the cylindrical mechanism (5) in a partially filled state to reserve space for swaying. S3. Control the vertical moving mechanism (1), the horizontal moving mechanism (2), the longitudinal moving mechanism (3) and the cylindrical support mechanism (4) to work together. S4. During the swaying process, the deformation and displacement data of the corrugated plate mechanism (6) and the insulation module mechanism (7) under dynamic force are collected in real time by the deformation detection mechanism (8). S5. The collected deformation and displacement data are analyzed by combining the motion output parameters of the vertical moving mechanism (1), the horizontal moving mechanism (2), the longitudinal moving mechanism (3) and the cylinder support mechanism (4) to obtain the degree of fatigue damage of the corrugated plate mechanism (6) and the insulation module mechanism (7) under different swaying conditions.

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