A test device for dynamic response of suspended tunnel under wind-wave-current coupling

Abstract

The present invention discloses a test device for the dynamic response of a suspended tunnel under the action of wind-wave-current coupling, comprising a simulation mechanism, a suspended tunnel test mechanism and a measuring mechanism, wherein the simulation mechanism is used to simulate a wind field and control water movement, and can simulate the excitation action of wind-wave-current coupling; the suspended tunnel test mechanism is used to simulate the dynamic response of a suspended tunnel under the excitation action of wind-wave-current coupling and conduct tests; the measuring mechanism is used to measure, collect and feedback test data of the simulation mechanism and the suspended tunnel test mechanism. The present invention can flexibly simulate the three-dimensional motion and stress conditions of the suspended tunnel test mechanism under various test conditions, and truly and effectively and comprehensively reflect the dynamic response of the suspended tunnel under the action of wind, wave and ocean current loads; and the test device proposed by the present invention has a simple structure, low cost, scientific design, easy installation, accurate measurement and strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of a suspended tunnel dynamic response test device, in particular to a suspended tunnel dynamic response test device under the coupling effect of wind, wave and current. Background Art

[0002] The suspended tunnel is a new type of transportation structure used to cross deep straits and bays. It uses its own gravity, water buoyancy and fixing devices to maintain dynamic balance, so that it can float at a certain depth underwater. Compared with traditional large-scale cross-sea transportation structures, the suspended tunnel has the advantages of short travel time, large spanning capacity, low unit length construction cost, and the ability to maintain all-weather operation. It has huge development and application potential and has attracted widespread attention from scholars at home and abroad.

[0003] The fixing methods of suspended tunnels are mainly divided into buoy type, anchor cable type and pile column type. When the gravity of the suspended tunnel is greater than the buoyancy, a buoy device is usually used as a fixing device. Its overall structural system is relatively complex. The dynamic response control of the structure, the stability and safety of the system are the key difficulties faced in the current research.

[0004] The pipe body and buoy device of the suspended tunnel are in complex marine environmental loads for a long time, and are mainly affected by wind, wave and current loads. Under the coupling of wind, wave and current loads, the suspended tunnel cannot be simply regarded as the superposition of the effects of the three, but the influence of the coupling of sea surface wind and wave motion in nearby waters must be considered. Theoretical modeling and numerical calculations have adopted a lot of simplified calculations when dealing with this complex problem of wind, wave and current coupling, resulting in the inability of the results to truly reflect the actual force and movement of the suspended tunnel. The real-scale offshore tests often consume huge financial and material resources and are difficult to repeat. The most effective means is still to carry out scale-approximate model tests. At present, there is a lack of model test research on the dynamic response of buoy-type suspended tunnels under the coupling of wind, wave and current loads.

[0005] A wind-wave-current fully coupled dynamic experimental system (publication number CN110879126A) is disclosed in the prior art, but the system has the following shortcomings:

[0006] (1) The system uses a narrow tubular low-speed wind tunnel. From a scale point of view, it is unable to simulate the dynamic response of a multi-tube suspended tunnel structure with a larger span, and is not very practical. Summary of the invention

[0007] Parts and honeycomb flow stabilizers.

[0008] In some embodiments of the present invention, the wave-making and flow-making unit includes a wave-making structure and a flow-making structure. The wave-making structure includes a shaking plate wave-making machine, and the wave-making structure is used to generate regular waves, irregular waves and focused waves driven by a servo motor; the flow-making structure includes a flow-making pump, and the flow-making structure is used to control the water flow rate.

[0009] In some embodiments of the present invention, the simulation mechanism further includes a wave-breaking unit for reducing the impact of wave and flow disturbances on the water body, thereby improving the quality of wave generation and the accuracy of test data collected by the measurement mechanism.

[0010] In some embodiments of the present invention, the floating tunnel test mechanism includes a floating tunnel test unit and a pipe body fixing unit, wherein the pipe body fixing unit is used to fix the floating tunnel test unit and to simulate the static and dynamic responses of the revetment section.

[0011] In some embodiments of the present invention, the suspended tunnel test unit includes a buoy structure and a tube suspended tunnel, the buoy structure is connected to the tube suspended tunnel; the buoy structure is made of foamed plastic; the tube suspended tunnel is made of plexiglass, and the tube suspended tunnel includes at least two tube sections.

[0012] In some embodiments of the present invention, the measuring mechanism includes an environmental measurement unit and a suspended tunnel test measurement unit. The environmental measurement unit is used to measure the environmental data generated by the simulation mechanism, and the suspended tunnel test measurement unit is used to measure the force data generated by the suspended tunnel test mechanism under the wind-wave-current coupling excitation.

[0013] In some embodiments of the present invention, the environmental measurement unit includes a wave height meter, a current meter, and an anemometer; the suspended tunnel test measurement unit includes a pressure sensor, a six-axis force sensor, and a six-degree-of-freedom displacement measurement device, and the six-degree-of-freedom displacement measurement device includes a high-speed camera and a six-component target.

[0014] In some embodiments of the present invention, the environmental data include wind speed, wave height, and water flow velocity; the force data include the surface pressure of the floating tunnel test structure, the force at the joints, and the motion displacement at any position.

[0015] The present invention has the following beneficial effects:

[0016] The present invention proposes a test device for dynamic response of a suspended tunnel under the wind-wave-current coupling action, which simulates the wind field and controls the movement of water bodies through a simulation mechanism, simulates the wind-wave-current coupling excitation action, and realizes a true simulation of the wind, wave and current coupling field; simulates the dynamic response of the suspended tunnel under the wind-wave-current coupling excitation action and conducts a test through a suspended tunnel test mechanism, and measures and collects the test data of the feedback simulation mechanism and the suspended tunnel test mechanism through a measuring mechanism, thereby flexibly simulating the three-dimensional movement and stress conditions of the suspended tunnel test mechanism under various test conditions, and truly and effectively and comprehensively reflects the dynamic response of the suspended tunnel under the wind, wave and current loads; and the test device proposed by the present invention has a simple structure, low cost, scientific design, easy installation, accurate measurement, and strong practicality.

[0017] In addition, in some embodiments of the present invention, the following beneficial effects are also achieved:

[0018] The water body is subjected to wave-breaking treatment by the wave-breaking unit to reduce the effect of reflected waves from the water body, thereby improving the quality of wave generation and the accuracy of test data collected by the measuring mechanism.

[0019] The six-component target coordinates exposed above the water surface are captured by a high-speed camera, so as to obtain the displacement motion changes at any position of the suspended tunnel. This solves the problem of the signal being shielded by water when testing the six-degree-of-freedom displacement of the underwater part of the suspended tunnel test structure, and improves the accuracy of the measurement results.

[0020] Through the pipe fixing unit, the static and dynamic responses of the revetment section can be simulated, thereby realizing the simulation of the suspended tunnel under the anchoring effect of the rock mass of the revetment section.

[0021] Other beneficial effects of the embodiments of the present invention will be further described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a elevational layout diagram of the suspended tunnel dynamic response test device in Example 1;

[0023] Figure 2 is a plan view of the suspended tunnel dynamic response test device in Example 1;

[0024] Figure 3 is a schematic structural diagram of the suspended tunnel test unit in Example 1;

[0025] The reference numerals are as follows:

[0026] 1- wind turbine, 2- lifting parts, 3- honeycomb flow stabilizer, 4- wave and flow making unit, 5- wave breaking unit, 6- buoy structure, 7- double-tube suspended tunnel, 8- fixed bracket, 9- hydraulic jack, 10- anemometer, 11- wave height meter, 12- current meter, 13- pressure sensor, 14- six-axis force sensor, 15- high-speed camera, 16- six-component target. DETAILED DESCRIPTION

[0027] The present invention is further described below with reference to the accompanying drawings and in combination with preferred embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0028] It should be noted that the directional terms such as left, right, up, down, top, and bottom in this embodiment are merely relative concepts or are based on the normal use status of the product, and should not be considered as restrictive.

[0029] In order to solve the above problems, it is necessary to invent a dynamic response test device for suspended tunnels under the coupling of wind, waves and currents based on a scaled model, and carry out model tests under complex working conditions to explore the dynamic characteristics and internal mechanisms of the suspended tunnel structure, so as to provide an effective basis for the future application of suspended tunnel engineering.

[0030] The following embodiment of the present invention proposes a test device for the dynamic response of a suspended tunnel under the action of wind-wave-current coupling, comprising a simulation mechanism, a suspended tunnel test mechanism and a measurement mechanism, wherein the simulation mechanism is used to simulate the wind field and control the movement of water bodies, and can simulate the wind-wave-current coupling excitation effect; the suspended tunnel test mechanism is used to simulate the dynamic response of the suspended tunnel under the wind-wave-current coupling excitation effect and conduct tests; the measurement mechanism is used to measure and collect test data of the feedback simulation mechanism and the suspended tunnel test mechanism.

[0031] In a preferred embodiment, the simulation mechanism includes a wind-generating unit and a wave-generating and flow-generating unit 4 . Furthermore, the simulation mechanism also includes a wave-breaking unit 5 .

[0032] The wind-making unit and the wave-making and flow-making unit 4 are controlled by an external computer to simulate the generation of random wind fields and control the movement of water bodies; the wave-breaking unit 5 is a slope structure made of gravel, which is used to break waves in the water body in the test pool. At the same time, wave-breaking cage panels are arranged at both ends of the long side of the pool to further reduce the effect of wall reflection waves, improve the wave-making quality and the accuracy of data collected by the sensor measurement mechanism.

[0033] In a preferred embodiment, the suspended tunnel test mechanism includes a suspended tunnel test unit and a tube body fixing unit. The suspended tunnel test unit includes a buoy structure 6 and a tube body suspended tunnel. Furthermore, the tube body suspended tunnel is a double tube body suspended tunnel 7. The buoy structure is connected to the tube body suspended tunnel through a steel pipe. The entire tube body suspended tunnel structure can be formed by connecting 2-10 pipe sections in sequence, and the number of pipe sections can be adjusted according to test requirements. The tube body fixing unit is used to fix the suspended tunnel test unit. In actual engineering, the revetment section at the end of the suspended tunnel is anchored by the rock mass. The tube body fixing unit is also used to simulate the static and dynamic responses of the revetment section, thereby realizing the simulation of the suspended tunnel under the anchoring action of the revetment section rock mass.

[0034] In a preferred embodiment, the measuring mechanism includes an environmental measurement unit and a suspended tunnel test measurement unit, wherein the environmental measurement unit is used to measure the environmental data generated by the simulation mechanism, and the suspended tunnel test measurement unit is used to measure the force data generated by the suspended tunnel test mechanism under the wind-wave-current coupling excitation.

[0035] Specifically, the environmental measurement unit includes a wave height meter, a current meter, and an anemometer; the suspended tunnel test measurement unit includes a pressure sensor, a six-axis force sensor, and a six-degree-of-freedom displacement measurement device, and the six-degree-of-freedom displacement measurement device includes a high-speed camera and a six-component target.

[0036] Furthermore, the environmental measurement unit includes a wave height meter 11, a current meter 12, and an anemometer 10, and the suspended tunnel test measurement unit includes a pressure sensor 13, a six-axis force sensor 14, and a six-degree-of-freedom displacement measuring device; the wave height meter 11 and the anemometer 10 are arranged on the wave-facing side of the double-tube suspended tunnel 7 to measure wave parameters and incoming wind speed; the current meter 12 is respectively arranged on both sides of the double-tube suspended tunnel 7 to measure the incoming flow velocity; the pressure sensor 13 is installed on the surface of the double-tube suspended tunnel 7 to measure the surface pressure distribution of the double-tube suspended tunnel 7; the six-axis force sensor 14 is installed between the pipe joints of the double-tube suspended tunnel 7 The six-degree-of-freedom displacement measuring device includes a high-speed camera 15 and a six-component target 16. The number of the high-speed cameras 15 is at least two, at least one of which is parallel to the axial direction of the double-tube suspended tunnel 7, and at least one is perpendicular to the axial direction of the double-tube suspended tunnel 7. The high-speed cameras 15 are distributed on the shore of the test pool. The six-component target 16 is installed on the double-tube suspended tunnel 7 and the buoy structure 6, and is exposed to the water surface through the steel frame support. A photosensitive target is arranged on the six-component target 16. The motion displacement of the target is captured by the high-speed camera 15, and the motion situation of any position on the double-tube suspended tunnel 7 is obtained by conversion.

[0037] The test data includes environmental data and force data. The environmental data includes wind speed, wave height, and water flow velocity; the force data includes the surface pressure of the floating tunnel test structure, the force at the joints, and the motion displacement at any position.

[0038] The embodiment of the present invention adopts a wind-generating unit and a wave-generating and current-generating unit 4 to simulate the wind-wave-current coupling excitation effect. The measuring mechanism includes a variety of sensors to collect feedback test data, which can comprehensively reflect various test data of the pontoon-type suspended tunnel, realize the dynamic response test of the pontoon-type suspended tunnel under the coupling of wind, waves and ocean currents, and can truly and effectively simulate the three-dimensional structural movement and stress conditions of the pontoon-type suspended tunnel under the action of wind, waves and ocean current loads.

[0039] Preferably, the wind-generating unit comprises a turbine wind generator 1, a lifting member 2 and a honeycomb flow stabilizer 3. The wind-generating unit inputs and adjusts parameters through an external computer, thereby simulating steady wind and pulsating wind.

[0040] Preferably, the wave-making and flow-making unit 4 includes a wave-making structure and a flow-making structure, and the water body movement is controlled by adjusting parameters through an external computer. The wave-making structure can be composed of 5-20 parallel-arranged rocking plate wave-making machines, which are driven by an AC servo motor and can generate regular waves, irregular waves and focused waves through computer control. The flow-making structure can be composed of 5-10 parallel-arranged flow-making pumps, and the water flow rate can be changed by adjusting the motor power and controlling the combined opening and closing of multiple flow-making pumps.

[0041] Preferably, the buoy structure 6 is made of foamed plastic material and is connected to the double-tube suspended tunnel 7 through a steel pipe.

[0042] Preferably, the two pipe sections of the double-tube suspended tunnel 7 are connected by rectangular pipes, both of which are made of organic glass with a thickness of 1-2 cm to avoid deformation of the outer wall of the suspended tunnel test mechanism during the test, and to facilitate observation of the test process. Both ends of the double-tube suspended tunnel 7 are sealed with rubber plates, and all parts that may enter water are sealed with vulcanized silicone rubber.

[0043] Preferably, the pipe body fixing unit includes a fixing bracket 8 and a hydraulic jack 9, which are used to simulate the static and dynamic response of the revetment section. The fixing bracket 8 is welded from a steel frame and placed at both ends of the pipe body suspension tunnel. The hydraulic jack 9 is installed on the fixing bracket 8 to provide axial force to fix the pipe body suspension tunnel.

[0044] Preferably, the pressure sensors 13 are evenly arranged on the surface of the double-tube suspended tunnel 7 along the circumferential direction, and the surface is waterproofed.

[0045] The embodiments of the present invention have outstanding substantial features and significant progress compared with the prior art. Specifically, the wind-making unit and the wave-making and flow-making unit 4 described in the embodiments of the present invention can simultaneously realize the real simulation of the coupled field of wind, waves and ocean currents through the control of an external computer; the suspended tunnel test mechanism is composed of a buoy structure 6 and a pipe suspended tunnel, which can realize the experimental research on the buoy-type pipe suspended tunnel under the coupling of wind, wave and current. The material of the pipe suspended tunnel is organic glass, which avoids the deformation of the outer wall of the suspended tunnel test mechanism during the test and facilitates researchers to observe the test process; the wave-breaking unit 5 made of gravel and the wave-breaking cage panels at both ends of the long side of the pool reduce the influence of wave and current disturbance on the measurement results; the six-degree-of-freedom displacement measuring part includes a high-speed camera 15 and a six-component target 16. 5. The target coordinates exposed to the water surface are captured, and then the displacement motion change of any position of the pipe body suspended tunnel is obtained by calculation, which effectively overcomes the situation that the signal is shielded by water when testing the six-degree-of-freedom displacement of the underwater model, and the measurement result is more accurate and effective; the aerodynamic parameters and hydrodynamic parameters and the dynamic response of the suspended tunnel are accurately measured by the measuring mechanism; the test device of the embodiment of the present invention has the advantages of simple structure, low cost, scientific design, easy installation and accurate measurement. By changing the wind, wave and ocean current parameters and the structure of the suspended tunnel test unit, it can flexibly simulate the three-dimensional motion and force of the suspended tunnel test model under various test conditions, truly and effectively reflect the dynamic response of the buoy-type suspended tunnel under the coupling of wind, wave and ocean current, and provide a theoretical basis and technical support for the engineering application of the suspended tunnel.

[0046] Example 1

[0047] like Figure 1 and Figure 2 As shown, this embodiment provides a test device for the dynamic response of a suspended tunnel under the action of wind-wave-current coupling, which includes a simulation mechanism, a suspended tunnel test mechanism and a measurement mechanism. Among them, the simulation mechanism includes a wind-generating unit, a wave-generating and current-generating unit 4 and a wave-breaking unit 5, and the suspended tunnel test mechanism includes a suspended tunnel test unit and a tube fixing unit. The wind-generating unit and the wave-generating and current-generating unit 4 are used to simulate the excitation action of wind-wave-current coupling; the suspended tunnel test unit includes a buoy structure 6 and a double-tube suspended tunnel 7, which can realize the experimental study of the buoy-type double-tube suspended tunnel device under the action of wind-wave-current coupling; the wave-breaking unit made of gravel and the wave-breaking cage panels at both ends of the long side of the pool reduce the influence of wave and current disturbance; the measurement mechanism includes a wave height meter 11, a current meter 12, an anemometer 10, a pressure sensor 13, a six-axis force sensor 14 and a six-degree-of-freedom displacement measuring device, which are used to measure and collect feedback test data. The direction of the arrow in the figure is the propagation direction of wind, waves and currents.

[0048] The wind generating unit comprises a turbine wind generator 1, a lifting member 2 and a honeycomb flow stabilizer 3. The wind generating unit inputs and adjusts parameters through an external computer, thereby simulating steady wind and pulsating wind. The turbine wind generator 1 is installed on the lifting member 2, and the height and angle are adjusted by the lifting member 2. A honeycomb flow stabilizer 3 is arranged in front of the turbine wind generator 1 to ensure uniform and stable wind.

[0049] The wave-making and flow-making unit 4 includes a wave-making structure and a flow-making structure, and the water body movement is controlled by adjusting parameters through an external computer. The wave-making structure is composed of ten parallel-placed shaking plate wave-making machines, which are driven by an AC servo motor and can generate regular waves, irregular waves and focused waves through computer control. The flow-making structure is composed of five parallel-arranged flow-making pumps, and the water flow rate is changed by adjusting the motor power and controlling the combined opening and closing of the five water pumps.

[0050] The wave-breaking unit 5 is a slope structure made of gravel, which is used to break the waves of the water in the test pool, reduce the effect of the wall reflection wave, and improve the wave-making quality and the accuracy of the data collected by the sensor measurement device.

[0051] like Figure 3 As shown, the suspended tunnel test unit includes a buoy structure 6 and a double-tube suspended tunnel 7. The buoy structure 6 is made of foamed plastic material and is connected to the double-tube suspended tunnel 7 through a steel pipe. The two tubes of the double-tube suspended tunnel 7 are connected by a rectangular pipe, which is made of a certain thickness of organic glass material to avoid deformation of the outer wall of the suspended tunnel test unit during the test, and to facilitate observation of the test process.

[0052] The pipe body fixing unit includes a fixing bracket 8 and a hydraulic jack 9. The fixing bracket 8 is welded from a steel frame and is placed at both ends of the pipe body. The hydraulic jack 9 is installed on the fixing bracket 8 to provide axial force to fix the pipe body.

[0053] The measuring mechanism comprises an anemometer 10, a wave height meter 11, a current meter 12, a pressure sensor 13, a six-axis force sensor 14 and a six-degree-of-freedom displacement measuring device.

[0054] The anemometer 10 and the wave height meter 11 are arranged on the wave-facing side of the double-tube suspended tunnel 7 to measure wind speed and wave height. The current meter 12 is arranged on both sides of the double-tube suspended tunnel 7 to measure the velocity of the ocean current. The pressure sensor 13 is installed on the surface of the double-tube suspended tunnel 7 to measure the pressure on the surface of the tube suspended tunnel. The six-axis force sensor 14 is installed between the pipe joints of the double-tube suspended tunnel 7 to measure the force at the joint. The six-degree-of-freedom displacement measuring device includes a high-speed camera 15 and a six-component target 16. The number of the high-speed cameras 15 is at least two, at least one is parallel to the axial direction of the double-tube suspended tunnel 7, and at least one is perpendicular to the axial direction of the double-tube suspended tunnel 7. The six-component target 16 is installed on the double-tube suspended tunnel 7 and the buoy structure 6, and is exposed to the water surface through the steel frame support. The six-component target 16 is arranged with a photosensitive target, and the motion displacement of the target is captured by the high-speed camera 15, and the motion situation on the double-tube suspended tunnel 7 is obtained by conversion.

[0055] Before the test begins, first install a wave height meter 11 and a current meter 12 in the test pool, install an anemometer 10 at the outlet of the wind-generating unit, and compare and check the actual wind, wave and current conditions output by the wind-generating unit and the wave-generating and current-generating unit 4 with the sequence input by the computer. Secondly, formulate the test conditions according to the size of the test pool and the economic efficiency of the test, and determine the size and number of pipe sections of the suspended tunnel test unit. Connect the buoy structure 6 and the double-tube suspended tunnel 7 through a steel pipe, and complete the connection between the pipe sections of the double-tube suspended tunnel 7. The two ends of the double-tube suspended tunnel 7 are sealed with rubber plates and waterproofed. The suspended tunnel test unit is constrained on the pipe body fixed unit by a hydraulic jack 9 and a fixed bracket 8, and installed in the center of the test pool. Install a six-component target 16 on the double-tube suspended tunnel 7 and the buoy structure 6. Arrange a high-speed camera 15 on the shore of the test pool. Install a pressure sensor 13 on the surface of the double-tube suspended tunnel 7, and install a six-axis force sensor 14 between its pipe section joints. During the test, the wind-generating unit and the wave-generating and current-generating unit 4 are used to generate the required wind, wave and current conditions. After the test conditions are stabilized, the measuring mechanism is used to measure the various dynamic response parameters of the suspended tunnel test unit, and the test data are collected and stored through the measuring mechanism and computer equipment to guide the engineering practice and application of the suspended tunnel.

[0056] The embodiments of the present invention have the following characteristics:

[0057] (1) The embodiments of the present invention are mainly aimed at the experimental research of the floating tube type suspended tunnel, which can simulate the dynamic response of the suspended tunnel structure composed of multiple tube sections with a large span, and has strong practicality.

[0058] (2) The coupling effect of wind, wave and current loads on the suspended tunnel cannot be simply regarded as the superposition of the effects of the three. Under real sea conditions, the influence of sea surface wind on the coupling of wave and current motion in nearby sea areas needs to be considered. The embodiments of the present invention can realize the real simulation of the coupling field of wind, wave and current.

[0059] (3) The embodiments of the present invention can simulate the typhoon excitation effect under extreme sea conditions.

[0060] Some embodiments of the present invention also have the following features:

[0061] (1) The various measuring devices in the measuring mechanism of the embodiment of the present invention are distributedly arranged in various places of the test device, so the arrangement is more reasonable and the measurement is more accurate.

[0062] (2) The six-degree-of-freedom displacement measuring device includes a high-speed camera and a six-component target. The coordinates of the target exposed above the water surface are captured by the high-speed camera, and then the displacement motion change at any position of the double-tube suspended tunnel is obtained by calculation, which effectively overcomes the problem that the signal is shielded by water when testing the six-degree-of-freedom displacement of the underwater model, and the measurement result is more accurate and effective.

[0063] (3) Considering the fixed unit of the pipe body, the static and dynamic responses of the revetment section can be simulated.

[0064] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art of the present invention, several equivalent substitutions or obvious variations can be made without departing from the concept of the present invention, and the performance or use is the same, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A test device for dynamic response of a suspended tunnel under wind-wave-current coupling, characterized in that: It includes a simulation mechanism, a suspended tunnel test mechanism and a measuring mechanism, wherein the simulation mechanism is used to simulate the wind field and control the movement of the water body, and can simulate the wind-wave-current coupling excitation effect; the simulation mechanism includes a wind-making unit and a wave-making and flow-making unit, wherein the wind-making unit is used to simulate a random wind field, and the random wind field includes a steady wind and a pulsating wind; the wave-making and flow-making unit is used to control the movement of the water body to generate regular waves, irregular waves and focused waves, and control the water flow; the wave-making and flow-making unit includes a wave-making structure and a flow-making structure, the wave-making structure includes a shaking plate wave-making machine, and the wave-making structure is used to generate regular waves, irregular waves and focused waves driven by a servo motor; the flow-making structure includes a flow-making pump, and the flow-making structure is used to control the water flow; the simulation mechanism also includes a wave-breaking unit, which is used to reduce the influence of wave and flow disturbance on the water body; the wave-breaking unit is a slope structure made of gravel, which is used to break the waves of the water body in the test pool, and at the same time, wave-breaking cage panels are arranged at both ends of the long side of the pool to further reduce the effect of wall reflection waves; The suspended tunnel test mechanism is used to simulate the dynamic response of the suspended tunnel under the wind-wave-current coupling excitation and conduct the test; the suspended tunnel test mechanism includes a suspended tunnel test unit and a pipe body fixing unit, the pipe body fixing unit is used to fix the suspended tunnel test unit and is used to simulate the static and dynamic response of the revetment section; the pipe body fixing unit includes a fixing bracket and a hydraulic jack, the fixing bracket is welded by a steel frame and is placed at both ends of the pipe body, the hydraulic jack is installed on the fixing bracket, provides axial force to fix the pipe body, thereby simulating the static and dynamic response of the revetment section under the rock anchoring action; The measuring mechanism is used to measure and collect test data of the feedback simulation mechanism and the suspended tunnel test mechanism.

2. The dynamic response test device of a suspended tunnel under wind-wave-current coupling according to claim 1 is characterized in that: The wind-generating unit comprises a turbine wind-generating machine, a lifting member and a honeycomb flow stabilizer.

3. The dynamic response test device of a suspended tunnel under wind-wave-current coupling according to claim 1 is characterized in that: The suspended tunnel test unit comprises a buoy structure and a tube suspended tunnel, wherein the buoy structure is connected to the tube suspended tunnel; the buoy structure is made of foamed plastic; the tube suspended tunnel is made of organic glass, and the tube suspended tunnel comprises at least two tube sections.

4. The dynamic response test device of a suspended tunnel under wind-wave-current coupling according to claim 1 is characterized in that: The measuring mechanism includes an environment measuring unit and a suspended tunnel test measuring unit. The environment measuring unit is used to measure the environment data generated by the simulation mechanism, and the suspended tunnel test measuring unit is used to measure the force data generated by the suspended tunnel test mechanism under the wind-wave-current coupling excitation.

5. The test device for dynamic response of a suspended tunnel under wind-wave-current coupling according to claim 4 is characterized in that: The environmental measurement unit includes a wave height meter, a current meter, and an anemometer; the suspended tunnel test measurement unit includes a pressure sensor, a six-axis force sensor, and a six-degree-of-freedom displacement measurement device, and the six-degree-of-freedom displacement measurement device includes a high-speed camera and a six-component target.

6. The test device for dynamic response of a suspended tunnel under wind-wave-current coupling according to claim 4 or 5, characterized in that: The environmental data include wind speed, wave height, and water flow velocity; the applied force data include the surface pressure of the suspended tunnel test structure, the force at the joints, and the motion displacement at any position.

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