WO2020074012A1

WO2020074012A1 - Wave generation testing apparatus using hydraulically driven push plate under hypergravity conditions

Info

Publication number: WO2020074012A1
Application number: PCT/CN2019/112667
Authority: WO
Inventors: 朱斌; 李俊超; 孔德琼; 任杰; 吴雷晔; 陈云敏
Original assignee: 浙江大学
Priority date: 2018-10-10
Filing date: 2019-10-23
Publication date: 2020-04-16
Also published as: CN109186937B; CN109186937A

Abstract

A wave generation testing apparatus using a hydraulically driven push plate under hypergravity conditions. A wave generation unit (1) and a wave dissipation unit (2) are provided respectively at the left inner wall and the right inner wall of a model chamber (3) filled with a liquid; a wave generation hydraulic cylinder (1-1) and a wave dissipation hydraulic cylinder (2-1) are respectively disposed at the left outer wall and the right outer wall of the model chamber (3); a seabed model (4) is arranged in a recessed groove formed between a bottom blocker of the wave generation unit (1-7) and a bottom blocker of the wave dissipation unit (2-9), and a marine engineering structure model (5) is embedded inside of the seabed model (4); two hydraulic drive systems outside of the model chamber (3) provide hydraulic power respectively to the wave generation hydraulic cylinder (1-1) and the wave dissipation hydraulic cylinder (2-1) by means of a centrifuge rotary union (9). The testing apparatus is suitable for high-frequency, large-amplitude wave generation under hypergravity conditions. A push plate is used to generate waves, and compared to conventional wheel-type power conversion systems used in servomotor drives, the present power conversion system between the hydraulic drive system and the wave generation plate (1-4) is simple and reliable. During the testing process, the distance between the wave dissipation plate (2-4) and the model chamber (3) wall, as well as the hole ratio thereof, can be adjusted, thereby enabling the simulations of waves under different engineering conditions and enhancing wave dissipation efficiency.

Description

Hydraulic driven push-plate wave-making test device under supergravity conditions

Technical field

The invention relates to a geotechnical centrifugal simulation test device, in particular to a hydraulically driven push plate wave-making test device under supergravity conditions.

Background technique

Waves are one of the main environmental loads to be considered in the fields of marine engineering and coastal engineering. In order to study the interaction between the seabed foundation soil layer and offshore structures under the action of waves, a wave-making device is needed to simulate the waves. In recent years, the development of geotechnical centrifugal simulation technology has made it possible to perform wave tests under supergravity conditions. The scale-down time effect of geotechnical centrifuges can restore the prototype seabed stress field, which can reflect the field size compared to the wave test under normal gravity conditions. Wave-seabed foundation-offshore structure interaction problem.

However, as the ocean development of countries around the world continues to expand into the deep sea, offshore structures will face a harsher service environment such as greater water depths and more extreme waves. The existing wave-making device under the condition of super-gravity generally uses a servo motor to drive the rocking plate to generate waves. Because the output torque of the motor is small, it is only suitable for the working conditions of lower acceleration and lower water depth; Install and fix the wave absorbing plate on the other side of the model box for wave decay. If the wave conditions change during the test, the position of the wave absorbing plate and the aperture ratio cannot be adjusted, resulting in poor wave absorbing effect.

Summary of the invention

The purpose of the present invention is to provide a hydraulically driven push-plate wave-making test device under ultra-gravity conditions, which can realize high-frequency large-scale waves under high centrifugal acceleration to develop extreme waves-offshore structures-soily seabed foundation Interaction study; At the same time, an adjustable wave-absorbing plate is used for efficient wave-elimination. When the wave conditions change during the test, the interference of the transmitted wave to the original wave can still be greatly reduced.

The technical solutions adopted by the present invention to solve its technical problems are as follows:

The invention includes a wave-making unit, a wave-damping unit, a model box, a seabed model, an offshore structure model and two sets of hydraulic drive systems; a wave-making unit is installed on the inner wall on the left side of the liquid-filled model box. The wave-making hydraulic cylinder is installed on the left outer wall of the model box; the right-side inner wall of the model box is equipped with a wave-removing unit, and the wave-removing hydraulic cylinder of the wave-removing unit is installed on the right wall of the model box; the bottom stop of the wave-making unit and the wave-removing unit The groove formed between the bottom blocks is built with a seabed model, and the marine structure model is embedded in the seabed model; two sets of hydraulic drive systems installed outside the model box provide hydraulic pressure to the wave-forming hydraulic cylinder and the wave-absorbing hydraulic cylinder, respectively power.

The wave-making unit includes a wave-forming hydraulic cylinder, a wave-forming hydraulic cylinder piston rod, a wave-making fixing device, a wave-making plate, two wave-making plate sliders, two wave-making plate guide rails and a bottom stop of the wave-making unit The piston rod of the wave-forming hydraulic cylinder of the wave-forming hydraulic cylinder extends into the inner wall of the left side of the model box, and is connected to the wave-making plate through the wave-making fixing device. The bottom block of the unit is fixed to the bottom of the model box. The bottom block of the wave making unit is equipped with wave guide rails on the front and back sides. The two wave plate sliders and the two wave plate guides form the guide rail pair respectively. Driven by the piston rod of the wave-forming hydraulic cylinder, the plate can reciprocate linearly along the respective guide rail pairs, generating simulated waves.

The wave-removing unit includes a wave-removing hydraulic cylinder, a wave-removing hydraulic cylinder multi-stage piston rod, a wave-removing fixed device, a wave-removing plate, a wave-removing plate connecting piece, two wave-removing plate guide rails, and a bottom stop of the wave-removing unit ; The wave-removing hydraulic cylinder multi-stage piston rod of the wave-removing hydraulic cylinder extends into the inner wall of the right side of the model box. The wave-removing fixed device is connected to the wave-removing plate connector, and the lower part of the wave-removing plate connector is connected to the wave-removing plate. The upper and lower sides of the connecting part are equipped with wave absorbing plate sliders, the bottom stop of the wave absorbing unit is fixed on the bottom of the model box, the right side of the model box is equipped with wave absorbing plate guide rails on both sides, and the two wave absorbing plates slide The block and the two wave-absorbing plate guide rails respectively constitute the guide rail pair. The wave-absorbing plate can drive the linear reciprocating motion along the respective guide rail pair through the wave-absorbing hydraulic cylinder multi-stage piston rod, adjust the distance between the wave-absorbing plate and the model box wall, and adjust the settings Simulated waves.

The two sets of hydraulic drive systems have the same structure, and include a first check valve, a first hydraulic station, a supercharger, a centrifuge rotary joint, a hydraulic cylinder, a first filter, a second filter, and a first flow monitoring meter , Second flow monitor, first pressure monitor, second pressure monitor, first return tank, first hydraulic pump, third filter, servo valve, second return tank, second hydraulic pump, fourth filter The second hydraulic station and the second one-way valve; the first hydraulic station outlet is connected to the centrifuge rotary joint through the first one-way valve and the supercharger. The centrifuge rotary joint outlet has two oil paths: the first oil Passing through the first filter, the first flow monitor, the first pressure monitor, the servo valve on the hydraulic cylinder, the second return tank, the second hydraulic pump, the fourth filter, the second hydraulic station, the second one-way The valve is connected to the other inlet of the rotary joint of the centrifuge; the second oil passage is connected to the second filter, the second flow monitor, the second pressure monitor, the hydraulic cylinder, the first oil return tank, the first hydraulic pump, and the third filter Entrance of the first hydraulic station; of the two hydraulic drive systems Cylinder are the wave clipping cylinder and a hydraulic cylinder.

The model box is an aluminum alloy rectangular parallelepiped, and a plexiglass window is opened in front of the model box.

The servo motor is fixed in the middle of the connector of the wave absorbing plate. The screw-nut structure is connected to the servo motor. The wave absorbing plate is composed of two bonded grid aluminum alloy plates, and the top of the grid aluminum alloy plate is connected to the wave absorbing plate. The lower part of the connecting piece is fixed, and the top of another grid-type aluminum alloy plate is fixed on the screw-nut structure; the multi-stage piston rod of the wave-absorbing hydraulic cylinder drives the wave-absorbing plate connector along the horizontal direction of the wave-absorbing plate guide provided on the top of the model box Movement to adjust the distance between the wave-absorbing plate and the wall of the model box; driven by a servo motor to drive the position of the grid-type aluminum alloy plate fixed to the screw-nut structure to shift between the two grid-type aluminum alloy plates The relative position is shifted to adjust the aperture ratio of the wave absorbing plate.

Compared with the background technology, the beneficial effects of the present invention are:

1) The present invention is suitable for high-frequency large-scale wave-making under supergravity conditions.

2) Adopt the push-plate wave-making, the force-conversion system of the hydraulic drive system to the wave-making plate is simpler in form and more reliable than the conventional roulette-type force conversion system driven by servo motors.

3) During the test, the wave-making frequency and amplitude can be adjusted to meet the simulation of waves under different working conditions.

4) During the test, the distance between the wave absorbing plate and the model box wall and the opening ratio can be adjusted, which can meet the simulation of waves under different working conditions and improve the wave absorbing efficiency.

BRIEF DESCRIPTION

FIG. 1 is a sectional view of the structural principle of the present invention.

FIG. 2 is a plan view of FIG. 1.

Fig. 3 is a front view of Fig. 1.

4 is a diagram of a hydraulic drive system.

Fig. 5 is a partial structural view of the wave cancelling unit; Fig. 5 (a) is a front view of the partial structure of the wave cancelling unit, and Fig. 5 (b) is a side view of the partial structure of the wave canceling unit.

Fig. 6 (a) is the time history curve of the surface water pressure of the seabed model during the preliminary test (gravity acceleration 20g, model water depth 25cm, wave making frequency 3.3Hz).

Fig. 6 (b) is the time history curve of the surface water pressure of the seabed model during the pre-test process (gravity acceleration 20g, model water depth 25cm, wave frequency 4Hz).

Figure 6 (c) is the time-history curve of the surface water pressure of the seabed model during the preliminary test (gravity acceleration 10g, model water depth 17cm, wave-making frequency 3Hz).

Fig. 6 (d) is the time history curve of the surface water pressure of the seabed model during the preliminary test (gravity acceleration 10g, model water depth 17cm, wave frequency 2Hz).

In the picture: 1, wave-making unit, 1-1, wave-forming hydraulic cylinder, 1-2, wave-forming hydraulic cylinder piston rod, 1-3, wave-making fixed device, 1-4, wave-making plate, 1-5 , Two wave-making plate sliders, 1-6, two wave-making plate guides, 1-7, wave stop at the bottom of the wave-making unit, 2, wave-removing unit, 2-1, wave-removing hydraulic cylinder, 2-2, Multi-stage piston rod for wave damping hydraulic cylinder, 2-3, wave damping fixed device, 2-4, wave damping plate, 2-5, wave damping plate connector, 2-6, two wave damping plate guide rails, 2- 7. Servo motor, 2-8, screw-nut structure, 2-9, bottom stop of wave-removing unit, 3. model box, 3-1, plexiglass window, 4, seabed model, 5, offshore structure Object model, 6, first check valve, 7, first hydraulic station, 8, supercharger, 9, centrifuge rotary joint, 10, hydraulic cylinder, 11, first filter, 12, second filter, 13. The first flow monitoring gauge, 14. The second flow monitoring gauge, 15. The first pressure monitoring gauge, 16, The second pressure monitoring gauge, 17, The first return tank, 18, The first hydraulic pump, 19, The third Filter, 20, servo valve, 21, second return tank, 22, second hydraulic pump, 23, fourth filter, 2 4. Second hydraulic station, 25. Second one-way valve.

detailed description

The present invention will be further described below with reference to the drawings and embodiments.

As shown in Figures 1 and 2, the device of the present invention includes a wave-making unit 1, a wave-reducing unit 2, a model box 3, a seabed model 4, a marine structure model 5 and two sets of hydraulic drive systems; The inner wall of the left side of the model box 3 is equipped with the wave-making unit 1, and the wave-forming hydraulic cylinder 1-1 of the wave-making unit 1 is installed on the left outer wall of the model box 3; The wave-removing hydraulic cylinder 2-1 of the wave unit 2 is installed on the outer wall on the right side of the model box 3; the groove formed between the bottom stop 1-7 of the wave-making unit and the stop 2-9 of the wave-reducing unit has a built-in seabed model 4. The marine structure model 5 is embedded in the seabed model 4; two sets of hydraulic drive systems installed outside the model box 3 provide hydraulic power to the wave-forming hydraulic cylinder 1-1 and the wave-removing hydraulic cylinder 2-1, respectively.

The liquid used in the test is generally a silicone oil with a certain viscosity, so that the similarity of wave propagation and soil consolidation can be satisfied under the corresponding supergravity conditions. The seabed model is usually a sandy seabed or soft soil seabed, and the offshore structure model includes offshore wind turbines and oil and gas platforms.

The wave-making unit 1 includes a wave-forming hydraulic cylinder 1-1, a wave-forming hydraulic cylinder piston rod 1-2, a wave-making fixing device 1-3, a wave-making plate 1-4, and two wave-making plate sliders 1 -5. Two wave-making guide rails 1-6 and wave-making unit bottom stop 1-7; the wave-forming hydraulic cylinder piston rod 1-2 of the wave-forming hydraulic cylinder 1-1 extends into the left inner wall of the model box 3 and passes The wave-making fixing device 1-3 is connected to the wave-making plate 1-4. The wave-making plate 1-4 is equipped with wave-making plate sliders 1-5 on the front and back sides, and the bottom block 1-7 of the wave-making unit is fixed at The bottom surface of the model box 3, the bottom block 1-7 of the wave-making unit are equipped with wave guide rails 1-6, two wave guides 1-5 and two wave guides 1-6 The guide rail pair is formed separately, and the wave-making plate 1-4 can be driven by the wave-forming hydraulic cylinder piston rod 1-2 to reciprocate in a straight line along the respective guide rail pair, generating simulated waves.

The wave-removing unit 2 includes a wave-removing hydraulic cylinder 2-1, a wave-removing hydraulic cylinder multi-stage piston rod 2-2, a wave-removing fixing device 2-3, a wave-removing plate 2-4, a wave-removing plate connection 2 -5, two wave-absorbing board guide rails 2-6 and wave-absorbing unit bottom stop 2-9; wave-absorbing hydraulic cylinder 2-1 of wave-absorbing hydraulic cylinder multi-stage piston rod 2-2 extends into the inner wall of the right side of the model box 3 ， The wave absorbing fixed device 2-3 is connected to the wave absorbing board connector 2-5, the lower part of the wave absorbing board connector 2-5 is connected to the wave absorbing board 2-4, the front and back sides of the wave absorbing board connector 2-5 upper Each is equipped with a wave absorbing plate slider, and the bottom stop blocks 2-9 of the wave absorbing unit are fixed on the bottom surface of the model box 3. The right side of the model box 3 is equipped with wave absorbing plate guide rails 2-6 on both sides, and two wave absorbing waves. The plate slider and the two wave-absorbing plate guide rails 2-6 respectively form a guide rail pair, and the wave-absorbing plate 2-4 can drive the linear reciprocating motion along the respective guide rail pair through the wave-absorbing hydraulic cylinder multi-stage piston rod 2-2 to adjust the wave reduction The distance between the plate 2-4 and the wall of the model box 3 is adjusted to set the simulated wave.

As shown in FIG. 4, the two sets of hydraulic drive systems have the same structure, and they include a first check valve 6, a first hydraulic station 7, a supercharger 8, a centrifuge rotary joint 9, a hydraulic cylinder 10, and a first filter 11. Second filter 12, first flow monitoring gauge 13, second flow monitoring gauge 14, first pressure monitoring gauge 15, second pressure monitoring gauge 16, first oil return tank 17, first hydraulic pump 18, third Filter 19, servo valve 20, second oil return tank 21, second hydraulic pump 22, fourth filter 23, second hydraulic station 24 and second one-way valve 25; the outlet of the first hydraulic station 7 passes the first one-way The valve 6 and the supercharger 8 are connected to an inlet of the rotary joint 9 of the centrifuge. The outlet of the rotary joint 9 of the centrifuge has two oil paths: the first oil path passes through the first filter 11, the first flow monitoring meter 13, and the first pressure monitoring Gauge 15, servo valve 20 on the hydraulic cylinder 10, second return tank 21, second hydraulic pump 22, fourth filter 23, second hydraulic station 24, second check valve 25 connected to the rotary joint 9 of the centrifuge Inlet; the second oil path passes through the second filter 12, the second flow monitoring gauge 14, the second pressure monitoring gauge 16, the hydraulic cylinder 10, the first return tank 17, the first A hydraulic pump 18 and a third filter 19 are connected to the inlet of the first hydraulic station 7; the hydraulic cylinders 10 in the two hydraulic drive systems are the wave-forming hydraulic cylinder 1-1 and the wave-eliminating hydraulic cylinder 2-1, respectively.

The above-mentioned hydraulic cylinder 10 is the wave-forming hydraulic cylinder 1-1 or the wave-eliminating hydraulic cylinder 2-1. There are two hydraulic cylinders, one for each input and one for driving the hydraulic cylinder. The servo valve has two hydraulic oil circuits, which are used to drive the pilot stage of the servo valve, thereby controlling the commutation of the hydraulic cylinder.

As shown in FIG. 3, the model box 3 is an aluminum alloy rectangular parallelepiped, and a plexiglass window 3-1 is opened in front of the model box 3.

As shown in Figure 5, the servo motor 2-7 is fixed in the middle of the wave-absorbing plate connector 2-5, the screw-nut structure 2-8 is connected to the servo motor 2-7, and the wave-absorbing plate 2-4 consists of two pieces The grid-type aluminum alloy plate is composed of one grid-type aluminum alloy plate and the upper part of the wave-absorbing plate connector 2-5 fixed, the other grid-type aluminum alloy plate is fixed on the screw-nut structure 2-8; The wave-absorbing hydraulic cylinder multi-stage piston rod 2-2 drives the wave-absorbing plate connector 2-5 to move horizontally along the wave-absorbing plate guide 2-6 provided on the top of the model box 3 to adjust the wave-absorbing plate 2-4 to the model box 3 The distance of the box wall; driven by the servo motor 2-7, the position of the grid aluminum alloy plate fixed to the screw-nut structure 2-8 is shifted, so that the relative position between the two grid aluminum alloy plates occurs Stagger to adjust the aperture ratio of the wave-absorbing plate 2-4.

Fig. 6 shows the time-history curve of water pressure actually measured on the surface of the seabed model in a series of hypergravity wave tests conducted by this unit, where Fig. 6 (a) is the acceleration of gravity of 20g, the model water depth of 25cm, and wave making The surface water pressure time history curve of the seabed model under the condition of frequency 3.3Hz; Fig. 6 (b) is the acceleration of seawater model surface water pressure time history curve under the condition of gravity acceleration of 20g, model water depth of 25cm, and wave frequency of 4Hz; Figure 6 ( c) is the time-history curve of the surface pressure of the seabed model under the conditions of gravity acceleration of 10g, model water depth of 17cm, and wave-making frequency of 3Hz; Time-history curve of water pressure on the model surface. It can be found that the effect of wave elimination by setting the wave absorbing plate is good. Under different test wave conditions, the water pressure time history curve is smooth and complete.

The working principle of the invention:

The high-speed rotation of the centrifuge can generate a supergravity field n times the acceleration of the earth's gravity in the experimental cabin, which can reproduce the stress field of the prototype rock and soil body. Using the "space-time compression" effect of supergravity, the supergravity test can weigh The large space-time evolution and catastrophic process of existing rock and soil bodies, the device of the present invention is mainly used for the simulation of seabed waves under supergravity conditions.

The model box 3 is installed on the centrifuge, and the centrifuge is turned on to conduct the test under supergravity conditions. As shown in Figure 4, when the wave formation begins, the main control computer sends the hydraulic servo drive to the wave conditions required for the test, and then opens the check valve between each hydraulic station and the rotary joint of the centrifuge to provide a source of hydraulic oil And turn on the hydraulic pump so that the hydraulic oil in the oil return tank can return to the hydraulic station, forming an oil source circulating supply.

As shown in Figures 1 and 2, under the control of the hydraulic servo driver, the servo valve controls the hydraulic flow in the wave-forming hydraulic cylinder 1-1, so that the wave-forming hydraulic cylinder piston rod 1-2 performs periodic movement according to the set frequency and amplitude. The wave plate 1-4 fixedly connected to the piston rod 1-2 of the wave-forming hydraulic cylinder through the fixing device 1-3 will be driven by the wave-forming hydraulic cylinder 1-1 through the stopper 1-7 located at the bottom of the wave-forming unit The wave-making plate slider 1-5 moves linearly and reciprocally along the wave-making plate guide 1-6, driving the liquid in the model box to generate simulated waves. On the other hand, under the control of the hydraulic servo driver, the servo valve controls the hydraulic flow in the wave damping hydraulic cylinder 1-1, so that the wave damping hydraulic cylinder multi-stage piston rod 2-2 drives the wave damping plate connector 2-5 along the wave damping The plate guide rails 2-6 make horizontal reciprocating motion, thereby adjusting the distance between the wave-absorbing plate 2-4 and the wall of the model box 3.

As shown in Figure 5, the wave-absorbing plate 2-4 is composed of two laminated grid-type aluminum alloy plates, the top of one grid-type aluminum alloy plate is fixed to the lower part of the wave-absorbing plate connector 2-5, and the other grid The top of the aluminum alloy plate is fixed on the screw-nut structure 2-8, and the screw-nut structure 2-8 is driven by the servo motor 2-7 fixed in the middle of the wave-absorbing plate connector 2-5 to drive and fix the screw -The position of the grid-type aluminum alloy plate of the nut structure 2-8 is shifted, so that the relative position between the two grid-type aluminum alloy plates is shifted, thereby adjusting the opening ratio of the wave-absorbing plate 2-4. By adjusting the position of the wave absorbing plate and the opening ratio to achieve a better wave absorbing effect, the wave making effect is observed through the plexiglass window opened in front of the model box as shown in FIG. 3.

The specific implementation uses Flow3D numerical simulation software to investigate the wavelet efficiency of different wave absorbing plate positions (represented by the distance from the model box wall on the side of the wave absorbing plate) and the aperture ratio of the wave absorbing plate under different wave conditions Numerical calculation, in which: the acceleration of gravity is 98.1m / s ² (10 times the acceleration of gravity), the water depth is 0.15m, and the two frequencies f are 1Hz and 2Hz respectively. The results are as follows:

Table 1 Absorbing plate position is fixed (0.30m away from the model box wall) with different aperture ratios Absorbing efficiency (%)

Table 2 The aperture ratio of the absorbing plate is fixed (10%) The absorbing efficiency of different absorbing plate positions (%)

It can be found from the above results that, for different wave conditions, the aperture ratio and position of the wave absorbing plate have an effect on the wave elimination efficiency. Therefore, the wave elimination unit provided in the present invention that can adjust the aperture ratio and position of the wave absorbing plate can be based on The actual wave parameters are effectively adjusted to achieve efficient wave cancellation.

The invention adopts a hydraulic drive system to replace the wave-making method under the condition of super-gravity driven by a traditional servo motor, which can realize the wave-making at a higher centrifuge acceleration value, higher frequency and larger value to study the extreme wave-offshore structure -Soil-seabed foundation interaction. At the same time, the hydraulic drive system and servo motor are used to control the wave absorbing plate so that when the wave conditions change during the test, the position and opening rate of the wave absorbing plate can be adjusted accordingly to meet different wave absorbing requirements.

Claims

A hydraulic driven push-plate wave-making test device under super-gravity conditions, characterized in that it includes a wave-making unit (1), a wave-reducing unit (2), a model box (3), a seabed model (4), a sea Industrial structure model (5) and two sets of hydraulic drive systems; a wave-forming unit (1) and a wave-forming hydraulic cylinder (1-) of the wave-forming unit (1) are installed on the inner wall on the left side of the liquid-filled model box (3) 1) Installed on the left outer wall of the model box (3); the inner wall of the right side of the model box (3) is equipped with a wave canceling unit (2), and the wave canceling hydraulic cylinder (2-1) of the wave canceling unit (2) is mounted on the model The outer wall of the right side of the box (3); the groove formed between the bottom block (1-7) of the wave-forming unit and the bottom block (2-9) of the wave-absorbing unit has a built-in seabed model (4) and seabed model ( 4) The marine structure model (5) embedded in the middle; two sets of hydraulic drive systems installed outside the model box (3) provide hydraulic pressure to the wave-forming hydraulic cylinder (1-1) and the wave-removing hydraulic cylinder (2-1) respectively power.
The hydraulically driven push-plate wave-making test device under hypergravity conditions according to claim 1, wherein the wave-forming unit (1) includes a wave-forming hydraulic cylinder (1-1), a wave-making Piston rod (1-2) of hydraulic cylinder, wave fixing device (1-3), wave plate (1-4), two wave plate sliders (1-5), two wave plate guides ( 1-6) and the bottom stop (1-7) of the wave-making unit; the wave-forming hydraulic cylinder piston rod (1-2) of the wave-forming hydraulic cylinder (1-1) extends into the inner wall of the left side of the model box (3) and passes The wave-making fixing device (1-3) is connected with the wave-making plate (1-4). The wave-making plate (1-4) is equipped with wave-making plate sliders (1-5) and wave-making unit The bottom stop (1-7) is fixed on the bottom surface of the model box (3), and the bottom stop (1-7) of the wave making unit is equipped with wave guide rails (1-6) on the front, back and sides, and two wave making The plate slider (1-5) and the two wave-forming plate guides (1-6) respectively form a guide rail pair, and the wave-forming plate (1-4) can be driven along the respective sides by the wave-forming hydraulic cylinder piston rod (1-2) The guide rail works as a linear reciprocating motion, generating simulated waves.
The hydraulically driven push-plate wave-making test device under hypergravity conditions according to claim 1, characterized in that the wave-removing unit (2) includes a wave-removing hydraulic cylinder (2-1), wave-reducing Hydraulic cylinder multi-stage piston rod (2-2), wave-eliminating fixed device (2-3), wave-absorbing plate (2-4), wave-absorbing plate connector (2-5), two wave-absorbing plate guides ( 2-6) The bottom stop (2-9) of the wave-removing unit; the multi-stage piston rod (2-2) of the wave-removing hydraulic cylinder of the wave-removing hydraulic cylinder (2-1) extends into the right inner wall of the model box (3) ， The wave absorbing fixed device (2-3) is connected to the wave absorbing plate connector (2-5), the lower part of the wave absorbing plate connector (2-5) is connected to the wave absorbing plate (2-4), and the wave absorbing plate is connected The upper and lower sides of the upper part (2-5) are equipped with wave-absorbing plate sliders, the bottom stopper (2-9) of the wave-absorbing unit is fixed on the bottom of the model box (3), and the right side of the model box (3) is on the front and back Each side is equipped with a wave-absorbing plate guide rail (2-6), two wave-absorbing plate sliders and two wave-absorbing plate guide rails (2-6) respectively constitute a guide rail pair, and the wave-absorbing plate (2-4) can pass the wave The hydraulic cylinder multi-stage piston rod (2-2) drives the linear reciprocating motion along the respective guide rails, adjusts the distance between the wave-absorbing plate (2-4) and the model box (3) box wall, and adjusts the set simulated wave
A hydraulically driven push plate wave-making test device under hypergravity conditions according to claim 1, characterized in that the two sets of hydraulic drive systems have the same structure, and both include a first check valve (6), a first A hydraulic station (7), supercharger (8), centrifuge rotary joint (9), hydraulic cylinder (10), first filter (11), second filter (12), first flow monitoring meter ( 13), second flow monitor (14), first pressure monitor (15), second pressure monitor (16), first oil return tank (17), first hydraulic pump (18), third filter (19), servo valve (20), second oil return tank (21), second hydraulic pump (22), fourth filter (23), second hydraulic station (24) and second check valve (25) ; The outlet of the first hydraulic station (7) is connected to the inlet of the centrifuge rotary joint (9) through the first check valve (6) and the supercharger (8), and the centrifuge rotary joint (9) outlet has two oil paths: The first oil passage passes through the first filter (11), the first flow monitor (13), the first pressure monitor (15), the servo valve (20) on the hydraulic cylinder (10), and the second oil return tank (21) ), Second hydraulic pump (22), fourth filter (23), second hydraulic station (24), second check valve ( 25) Connect to the other inlet of the centrifuge rotary joint (9); the second oil passage passes through the second filter (12), the second flow monitor (14), the second pressure monitor (16), and the hydraulic cylinder (10) , The first oil return tank (17), the first hydraulic pump (18), the third filter (19) is connected to the inlet of the first hydraulic station (7); the hydraulic cylinders (10) in the two sets of hydraulic drive systems are for wave making Hydraulic cylinder (1-1) and wave cancellation hydraulic cylinder (2-1).
The hydraulically driven push-plate wave-making test device according to claim 1, wherein the model box (3) is an aluminum alloy rectangular parallelepiped, which is opened in front of the model box (3) There are plexiglass windows (3-1).
A hydraulically driven push-plate wave-making test device under hypergravity conditions according to claim 3, characterized in that the servo motor (2-7) is fixed at the middle of the wave-absorbing plate connector (2-5), and the wire The bar-nut structure (2-8) is connected to the servo motor (2-7). The wave-absorbing plate (2-4) is composed of two laminated grid-type aluminum alloy plates, and the top of a grid-type aluminum alloy plate is connected to The lower part of the wave-absorbing plate connector (2-5) is fixed, and the top of another grid-type aluminum alloy plate is fixed on the screw-nut structure (2-8); the multi-stage piston rod (2-2) of the wave-absorbing hydraulic cylinder is driven The wave-absorbing plate connector (2-5) moves horizontally along the wave-absorbing plate guide (2-6) provided on the top of the model box (3) to adjust the wave-absorbing plate (2-4) to the wall of the model box (3) Distance; driven by a servo motor (2-7), the position of the grid-type aluminum alloy plate fixed to the screw-nut structure (2-8) is shifted, so that the two grid-type aluminum alloy plates face each other The position is shifted to adjust the aperture ratio of the wave absorbing plate (2-4).