Wind wave test system for testing disturbed wave field under static and dynamic section model

Abstract

The application discloses a wind wave test system for testing an interference wave field under a static and dynamic section model, which comprises two support devices symmetrically arranged at two ends of the section model and located outside the test section, the support device comprises a stand column, the stand column is connected with a horizontal circular steel pipe, the end of the horizontal circular steel pipe is connected with a force sensor, and the force sensor is connected with two ends of a main shaft extending to the outside of the side wall of the wind tunnel; a hole in the form of a four-prism table is arranged in the lower part of the upper surface of the center of the section model, and a wave height instrument suspension component is arranged in the hole; the wave height instrument suspension component comprises a bearing sleeved on the main shaft, and a wave height instrument fastener in the form of a rectangular sleeve is connected below the bearing; static end plates or dynamic end plates are arranged at the two ends of the section model; the application can realize the test of the interference wave field under the section model under different clearances and different incoming flow wind attack angles, greatly saves the test cost, enriches the test content, and is more operable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of segment model test, in particular to a wind wave test system for testing disturbed wave field under static-dynamic segment model. BACKGROUND

[0002] With the extension of China's transportation network to the sea, more and more cross-sea bridges are being constructed or planned. Unlike inland areas, the marine environment where the cross-sea bridge is located is extremely complex, and often suffers from different degrees of typhoon, giant waves and even tsunami and other complex marine dynamic environments, which makes the clearance height between the cross-sea bridge and the sea wave low, and the incoming flow wind attack angle complex. China's coastal channels are mostly located in the near island reef area, facing severe sea conditions such as strong wind, high wave, deep water and rapid current, which makes the cross-sea bridge have strong aerodynamic coupling effect between the extreme wind environment and the extreme sea wave. The extreme sea wave will significantly affect the aerodynamic stability and vibration mode of the cross-sea bridge through the coupling effect with the extreme wind environment. At the same time, due to the existence of the cross-sea bridge and its coupling effect with the extreme wind environment, it will significantly interfere with the form of the sea wave field within a certain distance range below the cross-sea bridge. Therefore, the research on the characteristics of the disturbed wave field below the cross-sea bridge is of great significance for in-depth study of the aerodynamic characteristics and vibration mode of the cross-sea bridge itself.

[0003] Traditional static test and dynamic test of segment model usually adopt two independent sets of devices, which increases the test cost and test space and reduces the test efficiency. When carrying out static test and dynamic test of segment model in a laboratory with wind tunnel and wave tank, it is necessary to ensure that the interference of the force measuring equipment and the spring suspension system on the wind field around the segment model is as small as possible, and to minimize the interference of the test support device on the wind field near the segment model and the wave field below. In the existing wind tunnel and wave tank test, the interference of the wind field on the characteristics of the wave field below and the influence of the existence of the wave field below on the characteristics of the upper wind field are studied. In the presence of segment model, the influence of the existence of wave field below the segment model on the aerodynamic characteristics of the segment model is studied, but no test has been found to study the interference of the static-dynamic segment model on the characteristics of the wave field below. Therefore, it is necessary to carry out a series of wind tunnel and wave tank test research on the characteristics of the disturbed wave field below the static-dynamic segment model, and the corresponding test system also needs to be further designed and optimized. SUMMARY

[0004] The present application provides a wind wave test system for testing disturbed wave field under static-dynamic segment model to solve the problems in the prior art.

[0005] In order to achieve the above object, the present application adopts the following technical scheme: a wind wave test system for testing disturbed wave field under a static and dynamic segment model, the test system comprising a static segment model test system and a dynamic segment model test system;

[0006] The test system comprises two support devices which are symmetrically arranged at the two ends of the segment model and outside the test section formed by the side wall of the wind tunnel and the side wall of the wave tank; the support device comprises four inclined support rods for auxiliary support; the base of the support device is supported by a jack with universal wheels (mobile casters); a total of six jacks are arranged on one side of the support device in three rows symmetrically, which can ensure the stability and flexibility of the support device and facilitate the adjustment of the distance between the two side support devices of the test section and the vertical height of the segment model; the column is connected with a horizontal circular steel pipe, the end of the horizontal circular steel pipe is connected with a circular steel pipe flange, the circular steel pipe flange is connected with an adapter flange connected with the non-force measuring end of the force measuring sensor through bolts; the force measuring end of the force measuring sensor is connected with a force flange through bolts; the force flange is connected with the model flange at the two ends of the main shaft of the segment model extending to the outside of the side wall of the wind tunnel through bolts; under the premise of ensuring the integrity of the upper surface of the segment model, four prisms are arranged in the form of holes below the upper surface of the center of the segment model, and the two sides of the hole intersecting with the main shaft are perpendicular to the main shaft; the wave height instrument suspension component for testing the disturbed wave field under the segment model is arranged in the hole;

[0007] The wave height instrument suspension component comprises a bearing sleeved on the main shaft and freely rotating around the main shaft, a rectangular sleeve type wave height instrument fastener connected below the bearing, and a wave height instrument fixed on the wave height instrument fastener by means of a tension bolt for testing the disturbed wave field under the segment model;

[0008] In the static segment model test system, the segment model is a static segment model, and the wind wave test system for testing the disturbed wave field under the static segment model is provided with static end plates at the two ends of the segment model; the static end plates are provided with static end plate slots; after the static end plates pass through the main shaft, the cut parts on the static end plates are supplemented by means of adhesive tape or the like, so as to become complete end plates; the static end plates are respectively provided with bolt holes at the four corners, which are used for the passage of one end of four horizontal screw rods and are fixed by nuts; the static end plates are not in contact with the two end faces of the segment model and the main shaft; the other end of the four horizontal screw rods passes through the bolt holes reserved on the side wall of the wind tunnel and is fixed by nuts; when different lengths of segment models are used for testing, the length of the four horizontal screw rods can be changed to keep the appropriate distance between the static end plates and the two ends of the segment model;

[0009] In the dynamic segment model test system, the segment model is a dynamic segment model, and in the wind wave test system for testing the disturbed wave field under the dynamic segment model, dynamic end plates are arranged at both ends of the segment model, the force sensor matched with the segment model, the adapter flange, the force flange, the static end plate and the four horizontal screws supporting the static end plate are removed, and the dynamic end plates are fixed at both ends of the segment model, the dynamic end plates are still provided with the dynamic end plate slot for the convenience of installation of the dynamic end plates; the model flange is connected with the flange on the middle spring suspension through bolts, the middle spring suspension is symmetrically provided with the bidirectional screw with a ring at the slot, the ring is suspended on the unidirectional screw with a ring symmetrically arranged at the slot of the upper spring suspension and the lower spring suspension through four upper and lower tension springs, the upper spring suspension and the lower spring suspension with the slot are supported by the C-shaped support with the flange, and the flange on the C-shaped support is connected with the circular steel pipe flange through bolts.

[0010] Further, in the wind wave test system, the upper part of the test section surrounded by the side wall of the wind tunnel and the side wall of the wave tank is the wind tunnel part, and the lower part is the wave tank part, and the segment model is always in the wind tunnel part; a windward gentle slope section is arranged at a certain distance range of the entrances of the wind field and the wave field in the test system to facilitate the rapid generation of a stable wind-wave coupling field; a wave absorbing section is arranged at the end opposite to the entrances of the wind field and the wave field; a liftable platform is arranged at a certain range along the length of the wave tank below the segment model, the liftable platform is supported by six rotatable telescopic arms, one end of each rotatable telescopic arm is fixed on the side wall of the bottom of the wave tank, and the other end is slidably connected with the liftable platform, the vertical position of the liftable platform can be freely adjusted, the six rotatable telescopic arms are uniformly arranged in three rows along the length of the wave tank, and two are symmetrically arranged along the width of the wave tank in each row, the vertical position of the liftable platform is adjusted to change the water depth in a certain distance range below the segment model, and then different target wave fields are generated.

[0011] Further, the support device base is supported by the jack with universal wheels, the interval between the support devices on both sides of the test section and the vertical height of the segment model can be adjusted, the test system is suitable for different types of force sensors, the vertical height of the segment model below can be adjusted, and the static segment model test system can be changed into the dynamic segment model test system, and the main function of the design is to compensate for the size difference between the C-shaped support and the force sensor and the adapter flange and the force flange at both ends in the static segment model test system by adjusting the interval between the support devices on both sides of the test section.

[0012] Further, four symmetrical arc-shaped holes are opened on the circular steel pipe flange plate, the adapter flange plate, the force measuring flange plate and the model flange plate, which are used for passing through bolts, and when two opposite flange plates rotate relative to each other, the adjustment of the large range of relative wind attack angle of the segment model to the flow can be realized.

[0013] Further, the segment model is a rectangular bridge deck segment model, or a segment model of a bridge girder, a building or a hydraulic structure in various forms, and the static segment model and the dynamic segment model in the application are the same segment model, which avoids unnecessary waste caused by repeated processing of test models.

[0014] Further, the hole is located at the part below the upper surface of the center of the segment model, the hole needs to be opened while keeping the integrity of the upper surface of the segment model, and the size of the hole needs to be determined according to the size of the wave gauge suspension member and the range of the relative wind attack angle of the segment model to be realized, so as to ensure that the wave gauge suspension member does not touch the side of the hole during the vibration of the segment model, so that the hole is as small as possible under the premise of meeting the test requirements, so as to minimize the influence of the hole and the wave gauge suspension member on the flow field of the segment model.

[0015] Further, the hole can also be along the main shaft and symmetrically arranged on both sides of the center of the segment model as the symmetric point, and the same number of holes are arranged on both sides, keeping the wave gauge suspension member arranged in the hole and the counterweight allocated to the dynamic segment model the same. In this case, the dynamic segment model is still uniformly applied with the counterweight, and the interference wave field test below the multi-point position along the main shaft can be realized.

[0016] Further, the bearing and the main shaft should be preferably made of materials with high smoothness to ensure that the friction between the bearing and the main shaft is minimized when they rotate relative to each other; and the bearing needs to be designed in a lockable form. In the static segment model test system, after the relative wind attack angle of the static segment model to the flow is adjusted, the bearing is locked to ensure that the wave gauge is always in a stable vertical state during the test; in the dynamic segment model test system, the bearing needs to be kept in an unlocked state.

[0017] Further, the wave height instrument fastener is designed in the form of a rectangular sleeve, with a tension bolt provided thereon for fixing the wave height instrument below the disturbed wave field of the test section model. The wave height instrument fastener can be filled with damping material to adapt to different types of wave height instruments, and can ensure that the wave height instrument does not shift or be damaged during the large-amplitude vibration of the dynamic test section model. In the dynamic test section model test system, in order to ensure that the weight of the dynamic test section model meets the test requirements, the dynamic test section model needs to be uniformly applied with counterweights. At the same time, in order to ensure that the wave height instrument is always in a stable vertical state during the large-amplitude vibration of the dynamic test section model at different relative incoming flow attack angles, a part of the counterweights applied to the dynamic test section model need to be uniformly distributed to the wave height instrument fastener, so that the wave height instrument fastener maintains a stable vertical state by relying on its own weight. Considering that the space available for applying counterweights to the wave height instrument fastener is small, heavy counterweight blocks should be used first. A round hole for the wave height instrument data output line needs to be reserved on the wave height instrument fastener to meet the use requirements of wired and wireless wave height instruments.

[0018] Further, the wave height instrument preferably uses a non-contact ultrasonic wave height instrument to test the disturbed wave field below the test section model, in order to minimize the disturbance of the wave field caused by the presence of the wave height instrument during the test. Alternatively, considering that most previous tests involving water tanks have used capacitive wave height instruments, and the influence of the presence of the wave height instrument metal rod on the wave field has been ignored, ideal test results have still been achieved in this case. Therefore, the wave height instrument can also be a contact type wave height instrument including a capacitive wave height instrument.

[0019] Further, the wind tunnel side wall has an opening at the position through which the main shaft passes. The opening needs to be designed in a form that is convenient for adjusting the size and vertical position of the opening. In the static test section model test system, the size of the opening in the wind tunnel side wall can be sufficient for the main shaft to pass through, and the position of the opening is determined according to the set clearance height of the static test section model below. In the dynamic test section model test system, in order to meet the large-amplitude vibration of the dynamic test section model, the size of the opening in the wind tunnel side wall should be larger than that in the static test section model test system, and the position of the center of the opening is determined according to the set clearance height of the dynamic test section model below.

[0020] Further, the upper spring suspension, the middle spring suspension and the lower spring suspension in the dynamic segment model test system are provided with slots, so as to adjust the distance between the tension spring and the main shaft, and further adjust the torsional vibration frequency of the dynamic segment model; the upper spring suspension and the lower spring suspension are symmetrically provided with one-way screw rods with circular rings at the slots, and the middle spring suspension is symmetrically provided with two-way screw rods with circular rings at the slots, the height between the upper and lower circular rings can be adjusted by changing the length of the screw rod, and further the length of the tension spring is changed, so that the C-shaped support is suitable for tension springs of various sizes, and the vibration frequency of the dynamic segment model can be changed by changing the size of the tension spring.

[0021] Further, the upper spring suspension or the lower spring suspension in the dynamic segment model test system is provided with two laser displacement sensors symmetrically arranged at both sides of the main shaft as the symmetric axis, for testing the vertical vibration displacement of the middle spring suspension, that is, testing the vertical vibration displacement of the dynamic segment model, and after obtaining the vertical vibration displacement of the dynamic segment model, the real wave height data of the disturbed wave field below the dynamic segment model can be obtained by subtracting the vertical vibration displacement of the dynamic segment model from the data measured by the wave height meter, and it should be noted that the two laser displacement sensors and the wave height meter need to keep synchronous data acquisition.

[0022] Further, the top of the wind tunnel is provided with a long slot along the length of the wind tunnel to the center line, and a two-way opening and closing cover plate is arranged on the long slot, and a rectangular hole can be formed between the two-way opening and closing cover plate, so that the rope for applying initial displacement excitation to the dynamic segment model can pass through, and the position of the rectangular hole along the long slot can be adjusted arbitrarily by moving the two-way opening and closing cover plate, so as to meet the requirement of applying initial displacement excitation to the dynamic segment model of different width by the rope and other ways, and ensure that the dynamic segment model does two-degree-of-freedom vibration in the vertical and torsional directions, and the position of the main shaft along the length of the wind tunnel remains unchanged.

[0023] Further, two horizontal steel members are symmetrically arranged at a certain distance on both sides of the main shaft on the side wall of the wind tunnel, fine iron wires are wound on the two horizontal steel members and connected with the main shaft, so as to limit the displacement of the dynamic segment model along the length of the water tank, ensure that the dynamic segment model does two-degree-of-freedom vibration in the vertical and torsional directions, and keep the position of the main shaft along the length of the wind tunnel unchanged, and the two symmetrically arranged horizontal steel members on the side wall of the wind tunnel need to be designed to be vertically freely movable and lockable, so that the two horizontal steel members and the main shaft are always in the same horizontal position when adjusting the clearance height below the dynamic segment model.

[0024] Further, the wind field in the test system can be generated by a single large fan or a fan array composed of multiple fans, the fan array can generate wind fields with different turbulence, which can more accurately simulate the turbulence characteristics of natural wind and the wind speed characteristics of specific airflow that is difficult to simulate in a conventional passive wind tunnel; the wave field in the test system can be regular waves and irregular waves of multiple types generated by a wave maker.

[0025] The present application has the following advantages:

[0026] The present application is a wind wave test system capable of testing the disturbed wave field under a static or dynamic sectional model, which can test the disturbed wave field under various types of sectional models, and the disturbed wave field measuring points can be a single point directly below the center of the sectional model or multiple points symmetrically distributed along the main axis with the center of the sectional model as the symmetric point. The test system has novel test content and comprehensive functions.

[0027] The present application is a wind wave test system capable of testing the disturbed wave field under a static or dynamic sectional model. The "static or dynamic sectional model" refers to a dynamic sectional model test system obtained by simple modification of a static sectional model test system, and the static sectional model test system and the dynamic sectional model test system can be freely exchanged. Compared with the traditional static sectional model test and dynamic sectional model test, which usually use two independent test systems, the test device of the present application greatly saves test cost, saves test space, improves test efficiency, and is more operable.

[0028] The test system of the present application ingeniously arranges the equipment for testing the disturbed wave field under the sectional model on the main shaft, i.e., the wave height instrument suspension member, so that the wave height instrument suspension member can vibrate with the dynamic sectional model, greatly expanding the adjustable range of the clearance height under the sectional model and meeting the demand for large-amplitude vibration of the dynamic sectional model. Avoiding the schemes of fixing the wave height instrument on the liftable platform in the wave tank through a support or fixing the wave height instrument by extending a rod from the side wall of the wave tank, which causes a small available range of the clearance height under the sectional model, making it difficult to test the disturbed wave field under small clearance conditions and large-amplitude vibration of the dynamic sectional model, and schemes other than the design of the present application are prone to interfere with the aerodynamic flow under the sectional model and affect the form of the disturbed wave field under the sectional model, resulting in inaccurate test results of the disturbed wave field under the sectional model. Therefore, the test system of the present application is reasonably designed, has strong practicality, and has higher accuracy of test results.

[0029] The test system of the application is suitable for various types of segment models, and the application is only described by taking a rectangular bridge deck segment model as an example, and can also be a segment model of a bridge girder, a building or a hydraulic structure in various forms, and the static segment model and the dynamic segment model in the application are the same segment model, thereby avoiding unnecessary waste caused by repeated processing of the test model.

[0030] The test system of the application is suitable for segment models of various lengths, and when static segment models of different lengths are used for testing, the lengths of the four horizontal screw rods can be changed to keep the static end plates always having a proper spacing from the two ends of the static segment model. When dynamic segment models of different lengths are used for testing, it is only necessary to ensure that the dynamic end plates always fit the two end faces of the dynamic segment model.

[0031] In the dynamic segment model test system of the application, the upper spring suspension, the middle spring suspension and the lower spring suspension are all provided with slots, which are convenient for adjusting the spacing of the tension spring relative to the main shaft, and further adjusting the torsional vibration frequency of the dynamic segment model. Unidirectional screw rods with circular rings are symmetrically arranged at the slot positions of the upper spring suspension and the lower spring suspension, and bidirectional screw rods with circular rings are symmetrically arranged at the slot position of the middle spring suspension. The height between the upper and lower circular rings can be adjusted by changing the length of the screw rod, and the length of the tension spring is changed, so that the C-shaped support is suitable for tension springs of various sizes. By changing the size of the tension spring, the vibration frequency of the dynamic segment model can also be changed, so that the test system of the application is easier to operate.

[0032] In the test system of the application, the support device base is supported by a jack with universal wheels, which is convenient for adjusting the spacing of the support devices on both sides of the test segment and the vertical height of the segment model, and further ensuring that the test system is suitable for various types of force sensors. At the same time, in combination with the opening provided on the side wall of the wind tunnel for the main shaft to pass through and convenient for adjusting the size and vertical position of the opening, the test system can realize the adjustment of the arbitrary clearance height below the segment model, so that the application range of the test system is wider.

[0033] In the test system of the application, four symmetrical circular arc holes are opened on the circular steel pipe flange, the adapter flange, the force measuring flange and the model flange, which are used for passing through bolts. When two opposite flanges are relatively rotated, the test system can realize the adjustment of the large range of relative wind attack angle of the segment model relative to the flow, and the application range of the test system is wide.

[0034] The testing system of this invention features an elongated hole at the top of the wind tunnel section, extending along the centerline of the wind tunnel. A bidirectional opening and closing cover plate is installed on the elongated hole, forming a rectangular hole between the two opening and closing cover plates. This allows a rope to pass through, applying initial displacement excitation to the dynamic segmental model. As the bidirectional opening and closing cover plates move, the position of the rectangular hole along the elongated hole can be arbitrarily adjusted to meet the requirement of applying initial displacement excitation vertically to dynamic segmental models of different widths via ropes or other means. This ensures that the dynamic segmental model performs two degrees of freedom vibration in both vertical and torsional directions, while maintaining the position of the main axis along the length of the wind tunnel. This makes the testing system of this invention more versatile.

[0035] In the test system of the present invention, one end of the rotatable telescopic arm is fixed to the side wall at the bottom of the wave channel, and the other end is slidably hinged to the lifting platform. This allows for free adjustment of the vertical position of the lifting platform, which facilitates changing the water depth within a certain distance range below the segment model, thereby generating different target wave fields. This makes the test system more functional and has a wider testing range.

[0036] The test system of the present invention is reasonably designed and easy to operate. The support device, force measuring device or tension spring suspension device are all placed on the outside of the test section. Only thin static-dynamic end plates and wave height meter suspension components for testing the disturbed wave field below the segment model are added at both ends of the segment model on the inside of the test section. This makes the test system of the present invention less disturbed by the wind field around the segment model and the wave field below it. Attached Figure Description

[0037] Figure 1 This is an overall layout diagram of a wind and wave test system for testing disturbed wave fields below a static and dynamic segmental model, according to the present invention.

[0038] Figure 2 This is a front view of the static segment model test system in the wind and wave test system of the present invention, which can test the disturbed wave field below the static and dynamic segment model.

[0039] Figure 3 yes Figure 2 Sectional view of plane AA;

[0040] Figure 4 yes Figure 2 BB section view;

[0041] Figure 5 yes Figure 2 CC section view;

[0042] Figure 6 yes Figure 2 Detailed drawings of round steel pipe flanges (model flanges) and force measuring flanges (transfer flanges);

[0043] Figure 7 is Figure 2 a detail view of the front view of the wave height gauge suspension member of claim 1;

[0044] Figure 8 is Figure 2 a detail view of the side view of the wave height gauge suspension member of claim 1;

[0045] Figure 9 is Figure 2 a detail view of the top view of the wave height gauge suspension member of claim 1;

[0046] Figure 10 is a front view of a dynamic segment model test system in a wind wave test system capable of testing the dynamic segment model under an interfered wave field according to the present application;

[0047] Figure 11 is Figure 10 a D-D sectional view;

[0048] Figure 12 is Figure 10 a detail view of the C-shaped bracket and spring suspension member of claim 1;

[0049] Figure 13 is Figure 12 a detail view of the slotted portion of the spring suspension member of claim 1.

[0050] In the figure: 1 - a vertical column; 2 - a jack; 3 - a horizontal round steel pipe; 4 - a round steel pipe flange; 5 - an adapter flange; 6 - a force sensor; 7 - a force flange; 8 - a model flange; 9 - a segment model; 10 - a main shaft; 11 - a static end plate; 111 - a slotted static end plate; 12 - a wind tunnel side wall; 13 - a hole; 14 - a wave height gauge suspension member; 141 - a bearing; 142 - a wave height gauge fastener; 143 - a wave height gauge; 144 - a loose bolt; 15 - a liftable platform; 16 - a rotatable telescopic arm; 17 - a wave tank side wall; 18 - a C-shaped bracket; 181 - an upper spring suspension member; 182 - a middle spring suspension member; 183 - a lower spring suspension member; 19 - a dynamic end plate; 20 - a tension spring; 21 - an along-wind gentle slope section; 22 - a wave absorbing section; 23 - a laser displacement sensor. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0052] In the description of the present application, it should be noted that the terms "center", "upper", "middle", "lower", "left", "right", "vertical", "horizontal", "outer", "inner", "interior" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "fixing" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] Referring to Figures 1-13 , the present application provides an embodiment: a wind wave test system capable of testing the disturbed wave field under the static and dynamic section model, comprising two support devices, the two support devices are symmetrically arranged at the two ends of the section model 9 and located outside the test section surrounded by the wind tunnel side wall 12 and the wave tank side wall 17; the support device comprises four inclined support rods auxiliary support columns 1, the base of the support device is supported by a jack 2 with universal wheels (swivel casters), a total of six jacks 2 are arranged on one side of the support device, symmetrically arranged in three rows, which can ensure the stability and flexibility of the support device, and facilitate the adjustment of the distance between the two support devices on both sides of the test section and the vertical height of the section model 9; the column 1 is connected with a horizontal circular steel pipe 3, the end of the horizontal circular steel pipe 3 is connected with a circular steel pipe flange 4, the circular steel pipe flange 4 is connected with the adapter flange 5 connected with the non-force measuring end of the force measuring sensor 6 through bolts; the force measuring end of the force measuring sensor 6 is connected with the force flange 7 through bolts, the force flange 7 is connected with the model flange 8 at both ends of the main shaft 10 of the section model 9 in the form of a circular steel pipe extending to the outside of the wind tunnel side wall 12 through bolts; on the premise of ensuring the integrity of the upper surface of the section model 9, four prisms in the form of holes 13 are arranged below the upper surface at the center of the section model 9, and the two sides of the hole 13 intersecting with the main shaft 10 are perpendicular to the main shaft 10, and the wave height instrument suspension component 14 testing the disturbed wave field under the section model 9 is arranged in the hole 13;

[0054] As Figure 7 , Figure 8 and Figure 9As shown in the figure, the wave height gauge suspension member 14 includes a bearing 141 sleeved on the main shaft 10 and freely rotatable around the main shaft 10, and a wave height gauge fastener 142 in the form of a rectangular sleeve connected below the bearing 141, and a wave height gauge 143 is arranged on the wave height gauge fastener 142, and a tension bolt 144 is arranged on the wave height gauge fastener 142 for fixing the wave height gauge 143 used in the disturbed wave field below the test segment model 9;

[0055] As shown in the figure, Figure 2 , Figure 3 , Figure 4 and Figure 5 , in the wind wave test system for testing the disturbed wave field below the static segment model 9, static end plates 11 are arranged at both ends of the static segment model 9, the static end plates 11 are provided with static end plate slots 111, and the parts cut off from the static end plates 11 after passing through the main shaft 10 are supplemented by means of adhesive tape or the like to make the static end plates 11 complete end plates, the static end plates 11 are provided with bolt holes at four corners respectively for the ends of four horizontal screw rods to pass through and be fixed by nuts, and the static end plates 11 are not in contact with the end faces of the static segment model 9 and the main shaft 10; the other ends of the four horizontal screw rods pass through the bolt holes reserved on the wind tunnel side wall 12 and are fixed by nuts; when different lengths of static segment models 9 are used for testing, the lengths of the four horizontal screw rods can be changed to keep the static end plates 11 and the static segment model 9 always having a proper spacing;

[0056] Alternatively, as shown in the figure, Figure 10 , Figure 11 , Figure 12 and Figure 13 , in the wind wave test system for testing the disturbed wave field below the dynamic segment model 9, dynamic end plates 19 are arranged at both ends of the dynamic segment model 9, and after the force transducer 6, the adapter flange plate 5, the force flange plate 7, the static end plate 11 and the four horizontal screw rods supporting the static end plate 11 are removed, the dynamic end plates 19 are fixed at both ends of the dynamic segment model 9, and the dynamic end plates 19 are still provided with dynamic end plate slots for the convenience of installation of the dynamic end plates 19; the model flange plate 8 is connected with the flange plate on the middle spring suspension member 182 with slots by means of bolts, the middle spring suspension member 182 is provided with bidirectional screw rods with rings symmetrically at the slots, the upper and lower four tensile springs 20 are suspended on the rings of the unidirectional screw rods with rings symmetrically arranged at the slots of the upper spring suspension member 181 and the lower spring suspension member 183 through the rings, the upper spring suspension member 181 and the lower spring suspension member 183 with slots are supported by the C-shaped support 18 with flanges, and the flange on the C-shaped support 18 is connected with the circular steel pipe flange plate 4 by means of bolts.

[0057] As shown in the figure, Figure 1As shown in the figure, the upper part of the test section surrounded by the sidewall 12 of the wind tunnel and the sidewall 17 of the wave tank in the wind-wave test system is the wind tunnel part, the lower part is the wave tank part, and the segment model 9 is always in the wind tunnel part; a windward slope section 21 is arranged at a certain distance range from the entrance of the wind field and the wave field in the test system to facilitate the rapid generation of a stable wind-wave coupling field; a wave absorbing section 22 is arranged at the end opposite to the entrance of the wind field and the wave field; a liftable platform 15 is arranged at a certain range along the length of the wave tank below the segment model 9, the liftable platform 15 is supported by six rotatable telescopic arms 16, one end of the rotatable telescopic arm 16 is fixed on the sidewall at the bottom of the wave tank, and the other end is slidably connected with the liftable platform 15, so that the vertical position of the liftable platform 15 can be freely adjusted, and the six rotatable telescopic arms 16 are uniformly arranged in three rows along the length of the wave tank, and two are symmetrically arranged along the width of the wave tank in each row; the vertical position of the liftable platform 15 is adjusted to change the water depth in a certain distance range below the segment model 9, and then different target wave fields are generated.

[0058] As shown in the figure, Figure 5 The base of the support device is supported by a jack 2 with universal wheels, which facilitates the adjustment of the distance between the two sides of the test section and the vertical height of the segment model 9, thereby ensuring that the test system is suitable for different types of force sensors 6, and also achieving the adjustment of the arbitrary clearance height below the segment model 9, and this design method also facilitates the conversion of the static segment model test system to a dynamic segment model test system. The main function of this design is to compensate for the size difference between the C-shaped bracket 18 in the dynamic segment model test system and the force sensor 6, the adapter flange plate 5 and the force flange plate 7 in the static segment model test system by adjusting the distance between the two sides of the test section.

[0059] As shown in the figure, Figure 6 Four symmetrical arc-shaped holes are opened on the circular steel pipe flange plate 4, the adapter flange plate 5, the force flange plate 7 and the model flange plate 8, which are used for passing through bolts. When two opposite flange plates rotate relative to each other, the relative inflow wind attack angle of the segment model 9 can be adjusted in a large range.

[0060] The segment model 9 is a rectangular bridge deck panel segment model, or a segment model of various forms of bridge girder, building or hydraulic structure, and the static segment model 9 and the dynamic segment model 9 in the present application are the same segment model 9, which avoids unnecessary waste caused by repeated processing of test models.

[0061] As shown in the figure, Figure 7 , Figure 8 and Figure 9As shown, the hole 13 is located below the upper surface at the center of the segment model 9. The hole 13 must maintain the integrity of the upper surface of the segment model 9. The size of the hole 13 must be determined according to the size of the wave height meter suspension component 14 and the range of relative incoming wind attack angle that the segment model 9 needs to achieve, so as to ensure that the wave height meter suspension component 14 will never touch the side of the hole 13 during the vibration of the segment model 9. The hole 13 should be as small as possible while meeting the test requirements, so as to minimize the influence of the existence of the hole 13 and the wave height meter suspension component 14 on the flow field around the segment model 9.

[0062] The holes 13 can also be arranged symmetrically on both sides of the main axis 10 with the center of the segment model 9 as the symmetrical point, so that the wave height meter suspension component 14 arranged in the holes 13 and the counterweight block allocated to the dynamic segment model 9 are the same. In this case, the counterweight is still applied evenly to the dynamic segment model 9, and the wave field test under the interference can be realized at multiple points along the main axis 10.

[0063] like Figure 7 , Figure 8 and Figure 9 As shown, the bearing 141 and the main shaft 10 should preferably be made of materials with high smoothness to ensure that the friction is minimized when the bearing 141 and the main shaft 10 rotate relative to each other; and the bearing 141 should be designed to be lockable. In the static segmental model test system, after adjusting the relative angle of attack of the static segmental model 9, the bearing 141 is locked to ensure that the wave height meter 143 is always in a stable vertical state during the test; in the dynamic segmental model test system, the bearing 141 should always be kept in an unlocked state.

[0064] like Figure 7 , Figure 8 and Figure 9As shown, the wave gauge fastener 142 is designed in the form of a rectangular sleeve, and a tension bolt 144 is arranged thereon for fixing the wave gauge 143 below the disturbed wave field of the test section model 9. The wave gauge fastener 142 can be filled with damping materials inside to adapt to wave gauges 143 of different models, and to ensure that the wave gauge 143 does not shift or be damaged during the large-amplitude vibration of the dynamic section model 9. In the dynamic section model test system, in order to ensure that the weight of the dynamic section model 9 meets the test requirements, the weight compensation needs to be uniformly applied to the dynamic section model 9. In order to ensure that the wave gauge 143 is always in a stable vertical state during the large-amplitude vibration of the dynamic section model 9 at different relative incoming flow attack angles, a part of the weight compensation applied to the dynamic section model 9 needs to be uniformly distributed to the wave gauge fastener 142, so that the wave gauge fastener 142 maintains a stable vertical state by relying on its own weight. Considering that the space available for applying weight compensation to the wave gauge fastener 142 is small, the weight compensation block with high density should be used preferentially. A round hole for the data output line of the wave gauge 143 needs to be reserved on the wave gauge fastener 142 to meet the use requirements of wired and wireless wave gauges 143.

[0065] As shown in Figure 7 , Figure 8 and Figure 9 , the wave gauge 143 preferentially uses a non-contact ultrasonic wave gauge to test the disturbed wave field below the test section model 9, so as to minimize the disturbance of the wave gauge 143 to the wave field during the test. Alternatively, considering that most of the previous tests involving water tanks have used capacitive wave gauges, and the influence of the wave gauge metal rod on the wave field has been ignored, ideal test results have still been obtained in this case. Therefore, the wave gauge 143 can also be selected from contact wave gauges including capacitive wave gauges.

[0066] The wind tunnel side wall 12 is provided with an opening at the position where the main shaft 10 passes through. The opening needs to be designed in a form facilitating adjustment of the size and vertical position of the opening. In the static section model test system, the size of the opening in the wind tunnel side wall 12 can meet the requirement that the main shaft 10 can pass through, and the position of the opening is determined according to the set clearance height of the static section model 9. In the dynamic section model test system, in order to meet the large-amplitude vibration of the dynamic section model 9, the size of the opening in the wind tunnel side wall 12 should be larger than that in the static section model test system, and the position of the center of the opening is determined according to the set clearance height of the dynamic section model 9.

[0067] As shown in Figure 11 , Figure 12 and Figure 13As shown, the dynamic segment model test system in the upper spring suspension 181, middle spring suspension 182 and lower spring suspension 183 are provided with slots, which are convenient for adjusting the distance between the tension spring 20 and the main shaft 10, and then adjusting the torsional vibration frequency of the dynamic segment model 9; the upper spring suspension 181 and the lower spring suspension 183 are symmetrically provided with one-way screw rods with circular rings at the slot positions, and the middle spring suspension 182 is symmetrically provided with two-way screw rods with circular rings at the slot positions, the height between the upper and lower circular rings can be adjusted by changing the length of the screw rod, and then the length of the tension spring 20 is changed, so that the C-shaped support 18 is suitable for tension springs 20 of various sizes, and the vibration frequency of the dynamic segment model 9 can also be changed by changing the size of the tension spring 20.

[0068] As shown in the figure, Figure 11 As shown, the dynamic segment model test system in the upper spring suspension 181 or lower spring suspension 183 is symmetrically arranged with two laser displacement sensors 23 on both sides of the main shaft 10 as the symmetry axis, which is used to test the vertical vibration displacement of the middle spring suspension 182, that is, to test the vertical vibration displacement of the dynamic segment model 9, and after obtaining the vertical vibration displacement of the dynamic segment model 9, the real wave height data of the disturbed wave field below the dynamic segment model 9 can be obtained by subtracting the vertical vibration displacement of the dynamic segment model 9 from the data measured by the wave height instrument 143. It should be noted that the two laser displacement sensors 23 and the wave height instrument 143 need to keep synchronous data acquisition.

[0069] The long strip hole is provided with a double-way opening and closing cover plate, and a rectangular hole can be formed between the double-way opening and closing cover plate, which is convenient for the rope to pass through to apply initial displacement excitation to the dynamic segment model 9. With the movement of the double-way opening and closing cover plate, the position of the rectangular hole along the long strip hole can be adjusted arbitrarily to meet the requirement of applying initial displacement excitation to the dynamic segment model 9 of different widths by means of rope and the like, so as to ensure that the dynamic segment model 9 performs two-degree-of-freedom vibration in the vertical and torsional directions, and the position of the main shaft 10 along the length of the wind tunnel remains unchanged.

[0070] The two horizontal steel members are wound with fine iron wires and connected with the main shaft 10, so as to limit the displacement of the dynamic segment model 9 along the length of the water tank, ensure that the dynamic segment model 9 performs two-degree-of-freedom vibration in the vertical and torsional directions, and keep the position of the main shaft 10 along the length of the wind tunnel unchanged. The two symmetrically arranged horizontal steel members on the wind tunnel side wall 12 need to be designed to be vertically freely movable and lockable, so that the two horizontal steel members and the main shaft 10 are always in the same horizontal position when adjusting the clearance height below the dynamic segment model 9.

[0071] The wind field in the test system can be generated by a single large fan or a fan array composed of multiple fans. The fan array can generate wind fields with different turbulence levels, more accurately simulate the turbulence characteristics of natural wind, and simulate the wind speed characteristics of specific airflows that are difficult to simulate in conventional passive wind tunnels. The wave field in the test system can be regular waves and irregular waves of various types generated by a wave generator.

[0072] Working principle:

[0073] When testing the disturbed wave field under the static segment model 9 in a laboratory with both a wind tunnel and a wave tank, first start the fan at the entrance of the wind field. The wind field passes through the downwind gentle slope section 21 and acts smoothly on the calm water surface in the wave tank. As the wind field propagates forward, the static segment model 9 will be subjected to lateral wind perpendicular to it, and the wind-generated wave field in the wave tank will gradually stabilize. After the wind-generated wave field reaches a stable state, start the wave generator at the entrance of the wave field according to the pre-calibrated wave file to generate regular or irregular wave fields, and gradually generate a stable wind-wave coupling field after coupling with the stable wind-generated wave field. After the wind-wave coupling field stabilizes, simultaneously start the force transducer 6 and the wave height instrument 143 to start synchronous data collection. Test the wind load data transmitted from the static segment model 9 to the force transducer 6, and the data of the disturbed wave field under the static segment model 9.

[0074] In the laboratory with wind tunnel and wave tank, when testing the dynamic interference wave field under the segment model 9, the force sensor 6, the adapter flange 5, the force flange 7, the static end plate 11 and the four horizontal screw rods supporting the static end plate 11 matched with the static segment model 9 in the static segment model test system are removed first, and then the dynamic end plate 19 is fixed on both ends of the dynamic segment model 9. The model flange 8 is connected to the flange on the slotted middle spring suspension 182 through bolts, the slotted middle spring suspension 182 is symmetrically provided with bidirectional circular ring screw rods, and the four upward and downward tension springs 20 are suspended on the circular rings of the unidirectional circular ring screw rods symmetrically provided in the slotted upper spring suspension 181 and lower spring suspension 183 through the circular rings, the slotted upper spring suspension 181 and lower spring suspension 183 are supported by the C-shaped bracket 18 with a flange, and the flange on the C-shaped bracket 18 is connected to the circular steel pipe flange 4 through bolts. Then, after obtaining the stable wind-wave coupling field according to the above-mentioned steps, the rope connected to the dynamic end plate 19 on both ends of the dynamic segment model 9 is pulled through the reserved rectangular hole at the top of the wind tunnel part, and the rope is pulled vertically upward for a certain distance and then released suddenly to make the dynamic segment model 9 vibrate freely. At the same time, the two laser displacement sensors 23 and the wave height instrument 143 are started to synchronously collect data, and the real wave height data of the interference wave field under the dynamic segment model 9 can be obtained by subtracting the vertical vibration displacement of the dynamic segment model 9 measured by the two laser displacement sensors 23 from the data measured by the wave height instrument 143.

[0075] When the test of the interference wave field under the segment model 9 is needed, in the static segment model test system, the bearing 141 is locked after the relative incoming flow attack angle of the static segment model 9 is adjusted, so as to ensure that the wave height instrument 143 is always in a stable vertical state during the test; and in the dynamic segment model test system, the bearing 141 is always kept in an unlocked state, so that the wave height instrument fastener 142 relies on the weight to keep a stable vertical state.

[0076] When different models of wave height instruments 143 are needed to collect the interference wave field data under the segment model 9, different damping materials can be filled in the rectangular sleeve type wave height instrument fastener 142 to adapt to different models of wave height instruments 143, and then the tension bolt 144 is tightened to fix the wave height instrument 143, which can ensure that the wave height instrument 143 does not shift and damage during the vibration of the dynamic segment model 9 with a large amplitude.

[0077] When the water depth in a certain distance range under the segment model 9 needs to be changed, the vertical position of the lifting platform 15 is adjusted to change the water depth, so that different target wave fields can be generated.

[0078] When the clearance height under the segment model 9 needs to be adjusted, the vertical height of the test system support device supported by the jacks 2 with universal wheels on both sides of the test section can be adjusted, and the vertical position of the opening reserved on the wind tunnel side wall 12 for the main shaft 10 to pass through and facilitate the adjustment of the size and vertical position of the opening can be adjusted, so as to realize the adjustment of the clearance height under the segment model 9.

[0079] When different types of force sensors 6 need to be replaced, or when the static segment model test system needs to be changed to a dynamic segment model test system, the spacing of the test system support device supported by the jacks 2 with universal wheels on both sides of the test section can be moved to achieve the adjustment.

[0080] When different lengths of segment models 9 need to be replaced, in the static segment model test system, the length of the four horizontal screws can be changed to maintain the appropriate spacing between the static end plate 11 and the ends of the static segment model 9. In the dynamic segment model test system, the dynamic end plate 19 is always in contact with the ends of the dynamic segment model 9.

[0081] When the relative angle of attack of the segment model 9 to the incoming flow needs to be adjusted over a large range, the relative rotation between the circular steel pipe flange plate 4 with four symmetric circular arc holes and the adapter flange plate 5, and the force flange plate 7 and the model flange plate 8 can be used to achieve the adjustment.

[0082] When the vibration frequency of the dynamic segment model 9 needs to be adjusted, the distance between the tension spring 20 and the main shaft 10 can be adjusted by adjusting the slot on the upper spring suspension 181, the middle spring suspension 182 and the lower spring suspension 183, and the height between the upper and lower circular rings can be adjusted by changing the length of the screw, thereby changing the length of the tension spring 20, to achieve the purpose of adjusting the vibration frequency of the dynamic segment model 9.

[0083] When the disturbed wave field under the dynamic segment model 9 of different widths needs to be tested, in order to meet the requirement of vertically applying initial displacement excitation to the dynamic segment model 9 of different widths by means of ropes and other means, ensuring that the dynamic segment model 9 vibrates in two degrees of freedom in the vertical and torsional directions, and keeping the position of the main shaft 10 along the length of the wind tunnel unchanged, the relative movement of the two-way opening and closing cover plates set on the long slot on the top of the wind tunnel part along the length of the wind tunnel can be used to achieve the adjustment of the position of the rectangular hole formed between the two-way opening and closing cover plates along the long slot, so as to meet the requirement of vertically applying initial displacement excitation to the dynamic segment model 9 of different widths by means of ropes and other means.

[0084] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wind wave test system for testing a disturbed wave field under a quasi-static and dynamic section model, characterized in that, The test system comprises a static segment model test system and a dynamic segment model test system; The test system comprises two support devices which are symmetrically arranged at two ends of the segment model (9) and located outside the test section formed by the sidewall (12) of the wind tunnel and the sidewall (17) of the wave tank; the support device comprises four inclined support rods for assisting the support of the stand (1), the support device base is supported by the jack (2) with universal wheels, so that the distance between the two support devices on the two sides of the test section and the vertical height of the segment model (9) can be adjusted; the stand (1) is connected with the horizontal circular steel pipe (3), the end of the horizontal circular steel pipe (3) is connected with the circular steel pipe flange (4), the circular steel pipe flange (4) is connected with the adapter flange (5) of the non-force measuring end of the force measuring sensor (6) through bolts; the force measuring end of the force measuring sensor (6) is connected with the force flange (7) through bolts, the force flange (7) is connected with the model flange (8) at the two ends of the main shaft (10) of the segment model (9) extending to the outside of the sidewall (12) of the wind tunnel through bolts; the lower part of the upper surface of the center of the segment model (9) is provided with a four-pyramid-shaped hole (13), and the two sides of the hole (13) intersecting with the main shaft (10) are perpendicular to the main shaft (10), and the wave height instrument suspension component (14) is arranged in the hole (13); The wave height instrument suspension component (14) comprises a bearing (141) sleeved on the main shaft (10) and freely rotating around the main shaft (10), a rectangular sleeve-shaped wave height instrument fastener (142) connected below the bearing (141), and a tension bolt (144) arranged on the wave height instrument fastener (142) for fixing the wave height instrument (143) used for testing the disturbed wave field below the segment model (9); In the static segment model test system, the segment model (9) is a static segment model, two ends of which are provided with static end plates (11), the static end plates (11) are provided with static end plate slots (111) for the main shaft (10) to pass through the static end plates (11), the static end plates (11) are respectively provided with bolt holes at four corners for the one end of the four horizontal screw rods to pass through and be fixed by nuts, and the static end plates (11) are not in contact with the two end faces of the segment model (9) and the main shaft (10); the other end of the four horizontal screw rods passes through the bolt holes reserved on the sidewall (12) of the wind tunnel and is fixed by nuts; when different lengths of static segment models are used for testing, the lengths of the four horizontal screw rods are changed to keep the static end plates (11) and the two ends of the segment model (9) always having appropriate distances. In the dynamic segment model test system, the segment model (9) is a dynamic segment model, both ends of which are provided with dynamic end plates (19), and after the force sensor (6) matched with the segment model (9), the adapter flange (5), the force flange (7), the static end plate (11) and the four horizontal screw rods supporting the static end plate (11) are removed, the dynamic end plates (19) are fixed on both ends of the segment model (9), in order to facilitate the installation of the dynamic end plates (19), the dynamic end plates (19) are provided with dynamic end plate slots; the model flange (8) is connected with the flange on the middle spring suspension piece (182) through bolts, the middle spring suspension piece (182) is provided with two-way circular ring screw rods symmetrically arranged in the slots, and the four upward and downward tension springs (20) are suspended on the circular rings of the one-way circular ring screw rods symmetrically arranged in the slots of the upper spring suspension piece (181) and the lower spring suspension piece (183) through the circular rings, and the upper spring suspension piece (181) and the lower spring suspension piece (183) are supported by the C-shaped support (18) with a flange, and the flange on the C-shaped support (18) is connected with the circular steel pipe flange (4) through bolts; The upper part of the test section surrounded by the wind tunnel side wall (12) and the wave tank side wall (17) is a wind tunnel part, and the lower part is a wave tank part, and the segment model (9) is always in the wind tunnel part; a windward gentle slope section (21) is arranged in a certain distance range at the entrances of the wind field and the wave field in the test system for quickly generating a stable wind-wave coupling field; a wave absorbing section (22) is arranged at the opposite end of the entrances of the wind field and the wave field; a liftable platform (15) is arranged in a certain range along the length of the wave tank below the segment model (9), the liftable platform (15) is supported by six rotatable telescopic arms (16), one end of the rotatable telescopic arm (16) is fixed on the side wall at the bottom of the wave tank, the other end is slidably connected with the liftable platform (15), and the six rotatable telescopic arms (16) are uniformly arranged in three rows along the length of the wave tank, and each row is symmetrically arranged along the width of the wave tank; the vertical position of the liftable platform (15) is adjusted to change the water depth in a certain distance range below the segment model (9), and then different target wave fields are generated.

2. The wave basin system of claim 1, wherein: Four symmetric circular arc holes are formed in the circular steel pipe flange (4), the adapter flange (5), the force flange (7) and the model flange (8), and the bolts are passed through the holes, so that the relative attack angle of the segment model (9) to the incoming flow can be adjusted when the two opposite flanges are relatively rotated.

3. The wave basin system of claim 1, wherein: The segment model (9) is a rectangular bridge deck segment model, or a segment model of a main beam of a bridge, a building or a hydraulic structure in various forms.

4. The wave basin system of claim 1, wherein: The hole (13) is located at the center of the segment model (9). Or the same number of holes (13) are symmetrically arranged on both sides along the main shaft (10) and taking the center of the segment model (9) as the symmetric point.

5. The wave basin system of claim 1, wherein: The wave height gauge fastener (142) is in the form of a rectangular sleeve, with a tension bolt (144) provided thereon for fixing the wave height gauge (143) below the test segment model (9) in the disturbed wave field, and the wave height gauge fastener (142) is filled with damping material inside; in the dynamic segment model test system, the dynamic segment model (9) is uniformly applied with counterweights; the counterweights applied to the segment model (9) are uniformly distributed to the wave height gauge fastener (142), so that the wave height gauge fastener (142) is kept in a stable vertical state by the dead weight.

6. The wave basin system of claim 1, wherein: In the dynamic segment model test system, the upper spring suspension (181), the middle spring suspension (182) and the lower spring suspension (183) are all provided with slots for adjusting the distance of the tension spring (20) relative to the main shaft (10), and then adjusting the torsional vibration frequency of the segment model (9); the one-way screw with a circular ring is symmetrically arranged at the slot of the upper spring suspension (181) and the lower spring suspension (183), and the two-way screw with a circular ring is symmetrically arranged at the slot of the middle spring suspension (182), the height between the upper and lower circular rings is adjusted by changing the length of the screw, and then the length of the tension spring (20) is changed, so that the C-shaped support (18) is suitable for tension springs (20) of various sizes, and the vibration frequency of the segment model (9) is changed by changing the size of the tension spring (20).

7. The wave basin system of claim 1, wherein: In the dynamic segment model test system, two laser displacement sensors (23) are symmetrically arranged on the upper spring suspension (181) or the lower spring suspension (183) with the main shaft (10) as the symmetry axis, for testing the vertical vibration displacement of the middle spring suspension (182).

8. The wave basin system of claim 1, wherein: The long strip-shaped hole is provided on the part of the top of the wind tunnel along the length of the wind tunnel to the center line position, the two-way opening and closing cover plate is arranged on the long strip-shaped hole, the rectangular hole is formed between the two-way opening and closing cover plate, the rope for applying initial displacement excitation to the segment model (9) passes through the rectangular hole, and the position of the rectangular hole along the long strip-shaped hole can be adjusted arbitrarily with the movement of the two-way opening and closing cover plate.

9. The wave basin system of claim 1, wherein: The two horizontal steel members are symmetrically arranged at a certain distance on both sides of the main shaft (10) as the center on the side wall (12) of the wind tunnel, the fine iron wire is wound on the two horizontal steel members and connected with the main shaft (10), and then the displacement of the segment model (9) along the length of the water tank is limited, the segment model (9) is ensured to do two-degree-of-freedom vibration in the vertical and torsional directions, and the position of the main shaft (10) along the length of the wind tunnel is kept unchanged.

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