Test support device mass balancing driving system and flow field test system

Abstract

The utility model provides a test support device mass balancing driving system and a flow field test system. The test support device mass balancing driving system comprises an oil transportation header pipe, two oil transportation branch pipes and an oil return header pipe, each oil conveying branch pipe is connected with the oil conveying main pipe through a first stop valve, and a second energy accumulator is connected to each oil conveying branch pipe; outlets of the two oil conveying branch pipes are respectively communicated with two oil cavities of the hydraulic cylinder; one oil conveying branch pipe is connected with an overflow valve, the overflow valve is connected with the oil return header pipe through a first oil return branch pipe, the other oil conveying branch pipe is connected with the oil return header pipe through a second oil return branch pipe, and a second stop valve is arranged on the second oil return branch pipe. The balancing of the mass of the test model supporting part in the sinking and floating movement process of the flow field test can be realized, and the mass of the test model supporting part does not influence the model test. In addition, by adjusting the pressure of the balance energy accumulator, namely adjusting the pressure of the second energy accumulator, the frequency of balancing motion can be achieved, and broadband quality balancing from low frequency to high frequency can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow field test, in particular to a mass balancing drive system, a method and a flow field test system for a test support device. Background Art

[0002] The flow field test is a crucial experimental method in the field of fluid mechanics, mainly used to study the dynamic characteristics of an object in fluid flow. In a flow field test, an object model is placed in the flow field, and fluid is artificially made to flow through it to study the fluid flow and its interaction with the model. There is a heaving motion in the flow field test. Usually, after the test piece is lifted to the middle position by the test model support component, the experiment is then carried out. It is actually found in the test that the mass of the test model support component has a relatively large impact on the flow field motion of the test piece. Summary of the Utility Model

[0003] In view of the above problems, the present utility model is proposed to provide a mass balancing drive system, a method and a flow field test system for a test support device that can overcome or at least partially solve the above problems, and can achieve the mass balancing of the test model support component during the heaving motion of the flow field test, and the mass of the test model support component does not affect the model test.

[0004] Specifically, the present utility model provides a mass balancing drive system for a test support device, which includes an oil supply main pipe, two oil supply branch pipes and an oil return main pipe;

[0005] A first accumulator is connected to the oil supply main pipe;

[0006] Each oil supply branch pipe is connected to the oil supply main pipe through a first stop valve, and a second accumulator is connected to each oil supply branch pipe; the outlets of the two oil supply branch pipes are respectively communicated with the two oil cavities of the hydraulic cylinder; wherein,

[0007] An overflow valve is connected to one of the oil supply branch pipes, the overflow valve is connected to the oil return main pipe through a first oil return branch pipe, the other oil supply branch pipe is connected to the oil return main pipe through a second oil return branch pipe, and a second stop valve is arranged on the second oil return branch pipe; or, an overflow valve is connected to each oil supply branch pipe, and each overflow valve is connected to the oil return main pipe through an oil return branch pipe.

[0008] Optionally, a hydraulic lock is arranged on each oil supply branch pipe, the second accumulator is connected to the pipe section of the oil supply branch pipe between the hydraulic lock and the first stop valve, and the corresponding overflow valve is connected to the pipe section of the oil supply branch pipe between the hydraulic lock and the first stop valve.

[0009] Optionally, a pressure reducing valve is provided on the pipe section of the oil delivery main pipe between the connection point of the first accumulator and the first stop valve, and the pressure reducing valve is also communicated with the oil return main pipe;

[0010] A safety valve is connected to the pipe section of the oil delivery branch pipe between the hydraulic lock and the oil chamber, and the safety valve is communicated with the oil return main pipe.

[0011] Optionally, a first pressure sensor is connected to the pipe section of the oil delivery main pipe between the pressure reducing valve and the first stop valve;

[0012] A second pressure sensor is connected to the pipeline of the oil delivery branch pipe connected with the overflow valve between the connection point of the first stop valve and the overflow valve;

[0013] A third pressure sensor is connected to the pipe section of the oil delivery branch pipe between the safety valve and the oil chamber.

[0014] Optionally, it further includes a hydraulic lock control valve, and the hydraulic lock control valve is connected to the oil delivery main pipe, the hydraulic lock and the oil return main pipe through pipelines.

[0015] Optionally, it further includes a guide rail clamp and a clamp control valve; the clamp control valve is connected to the oil delivery main pipe, the guide rail clamp and the oil return main pipe through pipelines.

[0016] The present invention also provides a flow field test system, including a flow field, a hydraulic cylinder, a heaving motion guide rail and a test model support component, and any one of the above test support device mass balancing drive systems; the test model support component is movably installed on the heaving motion guide rail up and down, the output rod of the hydraulic cylinder is vertically arranged, and the output rod is connected to the test model support component; the outlets of the two oil delivery branch pipes are respectively communicated with the two oil chambers of the hydraulic cylinder.

[0017] Optionally, there are two hydraulic cylinders, which are respectively arranged on both sides of the test model support component; the lower end of the cylinder body of the hydraulic cylinder is universally connected to a fixed base; the upper end of the output rod is universally connected to the test model support component;

[0018] An upper limit buffer is arranged on the upper side of the test model support component, and a lower limit buffer is arranged on the lower side.

[0019] The present invention also provides a mass balancing method using any one of the above test support device mass balancing drive systems, which includes:

[0020] Adjust the inflation pressure of the two second accumulators;

[0021] First, fill hydraulic oil into one of the second energy accumulators in a preset order, and then fill hydraulic oil into the other second energy accumulator;

[0022] Input the hydraulic oil to control the output rod of the hydraulic cylinder to move upward, and control the speed of the upward movement of the output rod;

[0023] Control the overflow valve to adjust the pressure difference between the two second energy accumulators;

[0024] Conduct a flow field test.

[0025] In the test support device mass balancing drive system, method and flow field test system of the present utility model, due to having two second energy accumulators and two hydraulic cylinders, the two hydraulic cylinders support the test model support component, and the pressure difference between the two second energy accumulators can balance the mass of the test model support component, so that the test piece installed on the test model support component is not affected by the test model support component during the flow field test, that is, the test support device mass balancing drive system can achieve the mass balancing of the test model support component during the heaving motion of the flow field test, and the mass of the test model support component does not affect the model test. Further, the frequency of the balancing motion can be achieved by adjusting the pressure of the balance energy accumulator, that is, adjusting the pressure of the second energy accumulator, and wide-band mass balancing from low frequency to high frequency can be achieved.

[0026] From the following detailed description of the specific embodiments of the present utility model in conjunction with the drawings, those skilled in the art will become more clear about the above and other objects, advantages and features of the present utility model. Brief Description of the Drawings

[0027] Some specific embodiments of the present utility model will be described in detail hereinafter with reference to the drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0028] Figure 1 is a schematic structural diagram of a test support device mass balancing drive system according to an embodiment of the present utility model;

[0029] Figure 2 is a schematic structural diagram of a flow field test system according to an embodiment of the present utility model. Detailed Description of the Embodiment

[0030] The following refers to Figures 1 to 2To describe the test support device mass balancing drive system, method and flow field test system of the embodiments of the present utility model. In the description of the embodiments of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, including one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0031] Unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to specific circumstances.

[0032] In addition, in the description of the embodiments of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through other features therebetween. That is, in the description of the embodiments of the present utility model, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" or "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0033] In the description of the embodiments of the present utility model, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0034] Figure 1is a schematic structural diagram of a mass balancing drive system of a test support device according to an embodiment of the present invention, as Figure 1 shown, and referring to Figure 2 , an embodiment of the present invention provides a mass balancing drive system 100 of a test support device, including an oil supply main pipe 21, two oil supply branch pipes 22 and an oil return main pipe 23. A first accumulator 24 is connected to the oil supply main pipe 21. The first accumulator 24 is a pressure stabilizing accumulator, which can stabilize the pressure of an external oil source. Each oil supply branch pipe 22 is connected to the oil supply main pipe 21 through a first stop valve. A second accumulator is connected to each oil supply branch pipe 22. The second accumulator is called a balancing accumulator. The outlets of the two oil supply branch pipes are respectively communicated with the two oil chambers of a hydraulic cylinder 40. An overflow valve 35 is connected to one oil supply branch pipe 22. The overflow valve 35 is connected to the oil return main pipe 23 through a first oil return branch pipe. The other oil supply branch pipe 22 is connected to the oil return main pipe 23 through a second oil return branch pipe. A second stop valve 36 is arranged on the second oil return branch pipe.

[0035] When the mass balancing drive system 100 of the test support device according to the embodiment of the present invention is working, air is filled into the two second accumulators to adjust the pressure of the second accumulators to adapt to the frequency of the corresponding flow field test. Then, the two first stop valves are closed, and hydraulic oil is conveyed into the first accumulator 24. After the pressure in the first accumulator 24 reaches a preset value, one of the first stop valves is controlled to open. The oil chamber corresponding to this first stop valve is the rod chamber 42 of the hydraulic cylinder 40, so that the corresponding second accumulator receives the hydraulic oil. After the pressure of this second accumulator reaches the preset value, this first stop valve is closed, and the other first stop valve is opened, so that the corresponding second accumulator receives the hydraulic oil. After the pressure of this second accumulator reaches the preset value, hydraulic oil is continuously filled, so that the output rods 41 of the two hydraulic cylinders 40 move upward, driving the test model support member 60 to move to a preset position. After the test model support member 60 moves to the preset position, the pressure of the corresponding second accumulator is adjusted through the overflow valve 35, so that the pressure difference between the two second accumulators is balanced with the mass of the test model support member 60, realizing the mass balancing of the test model support member 60. The second stop valve 36 and the overflow valve 35 are also used for relieving the pressure of the hydraulic cylinder 40. The first stop valve and the second stop valve 36 can both be two-way stop valves.

[0036] In the mass balancing drive system 100 of the test support device of the present utility model, since there are two second accumulators and two hydraulic cylinders 40, and the two hydraulic cylinders 40 support the test model support member 60, the pressure difference between the two second accumulators can balance the mass of the test model support member 60, so that the test piece installed on the test model support member 60 is not affected by the test model support member 60 during the flow field test, that is, the mass balancing drive system 100 of the test support device can achieve the mass balancing of the test model support member during the heaving motion in the flow field test, and the mass of the test model support member does not affect the model test. Further, the frequency of the balancing motion can be achieved by adjusting the pressure of the balancing accumulator, that is, adjusting the pressure of the second accumulator, and wide-band mass balancing from low frequency to high frequency can be achieved.

[0037] In some alternative embodiments of the present utility model, an overflow valve 35 is connected to each oil delivery branch pipe 22, and each overflow valve 35 is connected to the oil return main pipe 23 through an oil return branch pipe.

[0038] In some embodiments of the present utility model, the overflow valve 35 can be an electro-hydraulic proportional overflow valve. By adjusting the set pressure of the overflow valve 35, the output force of the heaving balance hydraulic cylinder 40 is balanced with the gravity of the test model support member 60.

[0039] In some embodiments of the present utility model, a hydraulic lock 37 is provided on each oil delivery branch pipe 22, and the second accumulator is connected to the pipe section of the oil delivery branch pipe 22 between the hydraulic lock 37 and the first stop valve, and the corresponding overflow valve 35 is connected to the pipe section of the oil delivery branch pipe 22 between the hydraulic lock 37 and the first stop valve.

[0040] In some embodiments of the present utility model, a pressure reducing valve 38 is provided on the pipe section of the oil delivery main pipe 21 between the connection point of the first accumulator 24 and the first stop valve, and the pressure reducing valve 38 is also communicated with the oil return main pipe 23.

[0041] A safety valve 39 is connected to the pipe section of the oil delivery branch pipe 22 between the hydraulic lock 37 and the oil chamber, and the safety valve 39 is communicated with the oil return main pipe 23. The safety valve 39 can be a direct-acting overflow valve, and can be respectively communicated with the oil circuits of the hydraulic cylinders 40 for heaving balance, and the safety protection of the hydraulic cylinders 40 is achieved by setting the overflow pressure.

[0042] In some embodiments of the present utility model, a first pressure sensor 51 is connected to the pipe section of the oil delivery main pipe 21 between the pressure reducing valve 38 and the first stop valve, for detecting the pressure of the oil delivery main pipe 21 after being reduced in pressure by the pressure reducing valve 38. A second pressure sensor 52 is connected to the pipeline of the oil delivery branch pipe 22 connected with the overflow valve 35 between the connection point of the first stop valve and the overflow valve 35, for detecting the pressure of the corresponding second accumulator. A third pressure sensor 53 is connected to the pipe section of the oil delivery branch pipe 22 between the safety valve 39 and the oil chamber, for detecting the pressure of the oil chamber of the hydraulic cylinder 40. There are two third pressure sensors 53, which respectively detect the pressure of the rodless chamber and the pressure of the rod chamber.

[0043] In some embodiments of the present utility model, the test support device mass balancing drive system 100 further includes a hydraulic lock control valve 45. The hydraulic lock control valve 45 is connected to the oil delivery main pipe 21, the hydraulic lock 37 and the oil return main pipe 23 through pipelines. The hydraulic lock control valve 45 can be a three-way solenoid valve, and the locking and unlocking of the heaving balance hydraulic cylinder 40 are realized by the switching control of the three-way solenoid valve.

[0044] In some embodiments of the present utility model, the test support device mass balancing drive system 100 further includes a guide rail clamp 55 and a clamp control valve 56. The clamp control valve 56 is connected to the oil delivery main pipe 21, the guide rail clamp 55 and the oil return main pipe 23 through pipelines. A pressure reducing valve 57 is arranged between the oil delivery main pipe 21 and the clamp control valve 56. The clamp control valve 56 is a three-way electromagnetic stop valve. There can be four guide rail clamps 55. A guide rail clamp control oil circuit pressure sensor 58 is connected to the pipeline between the pressure reducing valve 38 and the clamp control valve 56. The pressure reducing valve 57 can reduce the pressure to the required working pressure.

[0045] As Figure 2 shown, the embodiment of the present utility model further provides a flow field test system, including an artificial flow field 70, a hydraulic cylinder 40, a heaving motion guide rail 61 and a test model support member 60, and the test support device mass balancing drive system 100 in any of the above embodiments. The test model support member 60 is movably installed on the heaving motion guide rail 61 in the vertical direction. The output rod 41 of the hydraulic cylinder 40 is arranged vertically, and the output rod 41 is connected to the test model support member 60. The outlets of the two oil delivery branch pipes are respectively communicated with the two oil chambers of the hydraulic cylinder 40.

[0046] As Figure 2As shown, in some embodiments of the present invention, there are two hydraulic cylinders 40, which are respectively arranged on both sides of the test model support member 60. The lower end of the cylinder body of the hydraulic cylinder 40 is universally connected to the artificial flow field 70. Specifically, a fixed base is arranged in the artificial flow field, and the lower end of the cylinder body of the hydraulic cylinder 40 is universally connected to the fixed base through a spherical hinge. The upper end of the output rod 41 is universally connected to the test model support member 60. Specifically, a spherical hinge is arranged between the upper end of the output rod 41 and the test model support member 60. An upper limit buffer 65 is arranged on the upper side of the test model support member 60, and a lower limit buffer 66 is arranged on the lower side. The guide rail clamp 55 is installed between the test model support member 60 and the heaving motion guide rail 61, and the guide rail clamp 55 moves along with the test model support member 60.

[0047] The embodiment of the present invention also provides a mass balancing method using the mass balancing drive system 100 of the test support device in any of the above embodiments, which includes:

[0048] Adjust the inflation pressure of the two second accumulators.

[0049] Fill hydraulic oil into one second accumulator first in a preset order, and then fill hydraulic oil into the other second accumulator.

[0050] Input hydraulic oil to control the output rod 41 of the hydraulic cylinder 40 to move upward, and control the upward movement speed of the output rod 41.

[0051] Control the relief valve 35 to adjust the pressure difference between the two second accumulators.

[0052] Conduct a flow field test.

[0053] Due to having two second accumulators and two hydraulic cylinders 40, the two hydraulic cylinders 40 support the test model support member 60, and the pressure difference between the two second accumulators can balance the mass of the test model support member 60, so that the test piece installed on the test model support member 60 is not affected by the test model support member 60 during the flow field test, that is, the mass balancing drive system 100 of the test support device can achieve the mass balancing of the test model support member 60 during the heaving motion process of the flow field test, and the mass of the test model support member 60 does not affect the model test. Further, the frequency of the balancing motion can be realized by adjusting the pressure of the balance accumulator, that is, adjusting the pressure of the second accumulator, and wide-frequency mass balancing from low frequency to high frequency can be achieved.

[0054] Specifically, in some embodiments of the present invention, the two second accumulators are respectively a first balance accumulator 31 and a second balance accumulator 32. The first balance accumulator 31 is used to control the rodless chamber 43 of the hydraulic cylinder 40, and the second balance accumulator 32 is used to control the rod chamber 42 of the hydraulic cylinder 40. The first balance accumulator 31 is used in cooperation with the overflow valve 35. The first stop valves are respectively a first two-way stop valve 33 for controlling the rodless chamber 43 and a second two-way stop valve 34 for controlling the rod chamber 42.

[0055] The mass balancing method includes:

[0056] Adjust the inflation pressures of the first balance accumulator 31 and the second balance accumulator 32 to adapt to the system working frequency. The higher the working frequency, the higher the inflation pressure.

[0057] Adjust the pressures of the two safety valves 39 to the safety protection pressure.

[0058] Before starting, the test model support member 60 and the test piece on the test model support member 60 are both in the lowest position, parked on the lower limit buffer 66, the clamp controller valve 56 is de-energized, and the guide rail clamp 55 is clamped.

[0059] After starting to work, first energize the second two-way stop valve 34 to fill the second balance accumulator 32 of the rod chamber 42 of the hydraulic cylinder 40 with oil, and the oil filling pressure is determined according to the commissioning situation.

[0060] After the second balance accumulator 32 and the rod chamber 42 are filled with oil, the clamp controller valve 56 is energized, the guide rail clamp 55 is loosened, the second two-way stop valve 34 is de-energized, the hydraulic lock control valve 45 is energized, the hydraulic lock 37 is opened, the first two-way stop valve 33 is energized, the system fills the first balance accumulator 31 of the rodless chamber 43 with oil. When the oil filling pressure reaches a certain value, the test model support member 60 moves upward, and the movement speed is adjusted through the overflow valve 35.

[0061] After the test model support member 60 and the test piece thereon move to the middle position, the first two-way stop valve 33 is de-energized, and the pressure difference of the hydraulic cylinder 40 is adjusted through the overflow valve 35, that is, the pressure difference between the first balance accumulator 31 and the second balance accumulator 32 is adjusted to balance the gravity of the test model support member 60 with the pressure difference value determined according to the actual situation.

[0062] After the adjustment is completed, the clamp controller valve 56 is de-energized, the guide rail clamp 55 is clamped, the hydraulic lock control valve 45 is de-energized, the hydraulic lock 37 is closed, and wait for the flow field adjustment.

[0063] After the flow field adjustment is completed, the hydraulic lock control valve 45 is energized, the hydraulic lock 37 is opened, the clamp controller valve 56 is energized, the guide rail clamp 55 is relaxed, and the heave motion degree of freedom is released.

[0064] For the external flow field regulation, the test model support component 60 performs heaving motions at different frequencies along the heaving motion guide rail 61 in the vertical direction.

[0065] When the system detects an abnormality or is manually emergently stopped, the clamping device control valve 56 loses power, and the hydraulic lock control valve 45 loses power, locking the heaving motion within a short time.

[0066] When the flow field test ends normally, the second shut-off valve 36 is powered on, the second balance accumulator 32 discharges oil, the overflow valve 35 is adjusted to make the first balance accumulator 31 discharge oil, the test model support component 60 and the test piece slowly descend to the lower limit due to gravity, the clamping device control valve 56 loses power, and the hydraulic lock control valve 45 loses power, locking the heaving motion.

[0067] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present utility model have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present utility model can still be directly determined or derived from the disclosed content of the present utility model without departing from the spirit and scope of the present utility model. Therefore, the scope of the present utility model should be understood and determined to cover all these other variations or modifications.

Claims

1. A mass balancing drive system for a test support device, characterized in that, It includes an oil delivery main pipe, two oil delivery branch pipes and an oil return main pipe; A first accumulator is connected to the oil delivery main pipe; Each of the oil delivery branch pipes is connected to the oil delivery main pipe through a first stop valve, and a second accumulator is connected to each of the oil delivery branch pipes; the outlets of the two oil delivery branch pipes are respectively communicated with the two oil cavities of the hydraulic cylinder; among them, An overflow valve is connected to one of the oil delivery branch pipes, the overflow valve is connected to the oil return main pipe through a first oil return branch pipe, and the other oil delivery branch pipe is connected to the oil return main pipe through a second oil return branch pipe, and a second stop valve is arranged on the second oil return branch pipe; or, an overflow valve is connected to each of the oil delivery branch pipes, and each of the overflow valves is connected to the oil return main pipe through an oil return branch pipe.

2. The mass balancing drive system of the test support device according to claim 1, characterized in that A hydraulic lock is arranged on each of the oil delivery branch pipes, the second accumulator is connected to the pipe section of the oil delivery branch pipe between the hydraulic lock and the first stop valve, and the corresponding overflow valve is connected to the pipe section of the oil delivery branch pipe between the hydraulic lock and the first stop valve.

3. The mass balancing drive system of the test support device according to claim 2, characterized in that A pressure reducing valve is arranged on the pipe section of the oil delivery main pipe between the connection point of the first accumulator and the first stop valve, and the pressure reducing valve is also communicated with the oil return main pipe; A safety valve is connected to the pipe section of the oil delivery branch pipe between the hydraulic lock and the oil cavity, and the safety valve is communicated with the oil return main pipe.

4. The mass balancing drive system of the test support device according to claim 3, characterized in that A first pressure sensor is connected to the pipe section of the oil delivery main pipe between the pressure reducing valve and the first stop valve; A second pressure sensor is connected to the pipeline of the oil delivery branch pipe connected with the overflow valve between the first stop valve and the connection point of the overflow valve; A third pressure sensor is connected to the pipe section of the oil delivery branch pipe between the safety valve and the oil cavity.

5. The mass balancing drive system of the test support device according to claim 2, characterized in that, It further includes a hydraulic lock control valve, and the hydraulic lock control valve is connected to the oil delivery main pipe, the hydraulic lock and the oil return main pipe through pipelines.

6. The mass balancing drive system of the test support device according to claim 1, characterized in that It further includes a guide rail clamp and a clamp control valve; the clamp control valve is connected to the oil delivery main pipe, the guide rail clamp and the oil return main pipe through pipelines.

7. A flow field test system, including a flow field, characterized in that, It further includes: A hydraulic cylinder, a heaving motion guide rail and a test model support component, and the mass balancing drive system of the test support device according to any one of claims 1 to 6; The test model support component is movably installed on the heaving motion guide rail in the vertical direction, the output rod of the hydraulic cylinder is arranged vertically, and the output rod is connected to the test model support component; the outlets of the two oil delivery branch pipes are respectively communicated with the two oil cavities of the hydraulic cylinder.

8. The flow field test system according to claim 7, characterized in that There are two hydraulic cylinders, which are respectively arranged on both sides of the test model support component; the lower end of the cylinder body of the hydraulic cylinder is connected to the fixed base through a universal joint; the upper end of the output rod is connected to the test model support component through a universal joint. An upper limit buffer is provided on the upper side of the test model support member, and a lower limit buffer is provided on the lower side. The guide rail clamp is installed between the test model support member and the heaving motion guide rail, and the guide rail clamp moves with the test model support member.

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