CN103196652A - Active liquid tank oscillation simulation test device - Google Patents
Active liquid tank oscillation simulation test device Download PDFInfo
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- CN103196652A CN103196652A CN2013101481254A CN201310148125A CN103196652A CN 103196652 A CN103196652 A CN 103196652A CN 2013101481254 A CN2013101481254 A CN 2013101481254A CN 201310148125 A CN201310148125 A CN 201310148125A CN 103196652 A CN103196652 A CN 103196652A
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Abstract
The invention relates to an active liquid tank oscillation simulation test device which comprises a computer, a liquid tank oscillation component, a resistance-type wave height meter as well as a signal collecting processor, wherein the computer is connected with the liquid tank oscillation component fixedly connected with a liquid tank; and the resistance-type wave height meter is arranged in the liquid tank and is connected with the computer through the signal collecting processor. Compared with the prior art, according to the invention, the amplitude value and the cycle of the reciprocating motion of the liquid tank can be set randomly within certain amplitude value and certain frequency range, and the free surface real-time data of liquid oscillation in the tank can be measured under the motion excitation, so that the influences of ship body motion to the oscillation of the liquid tank are understood, and additionally the stepless transmission can be realized, and the test accuracy is improved.
Description
Technical field
The present invention relates to the test unit that liquid rocks in a kind of boiler-plate, especially relate to a kind of active liquid tank and rock simulation test device.
Background technology
Because the shortage of petroleum resources and to the continuous growth of energy demand, the exploitation in gas field, limit, ocean has obtained development energetically.In order to develop gas field, limit, ocean cost-effectively, the concept of FLNG (floating liquefied natural gas (LNG) carrier) has been proposed in the world.Because the operation marine environment of FLNG is complicated and changeable, acutely rocking of liquid in the cabin can be caused by the hull strenuous exercise that it causes, rocking of liquid also will be aggravated the motion of hull and the destruction that may cause the liquid tank inwall conversely in the cabin.In the gas extraction process, FLNG will experience the marine environment condition of different loading operating modes and complexity.Therefore, liquid rocking under given excitation is very necessary in the research cabin, and model test is the reliable means of this problem of research.By model test, can observe rocking phenomenon and obtaining real time data of liquid in the cabin comparatively all sidedly, the test findings that obtains can be used to the computational accuracy of the theoretical and numerical model of verification.But present model test equipment can not provide a kind of active liquid tank to rock simulation test device, this give simulation test within the specific limits under optional frequency and the amplitude accurately in the survey room influence of rocking of liquid brought difficulty.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of active liquid tank to rock simulation test device for the defective that overcomes above-mentioned prior art existence, liquid tank is moved under given excitation, and the situation of rocking of liquid in the cabin monitored in real time, thereby understand the influence that ship motion is rocked liquid tank, can also realize stepless change in addition, improve the precision of test.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of active liquid tank rocks simulation test device, it is characterized in that, comprise that computing machine, liquid tank rock assembly, resistance type wave height gauge and signal acquisition process device, described computing machine rocks assembly with liquid tank and is connected, described liquid tank rocks assembly fixedlys connected with liquid tank, described resistance type wave height gauge is located in the liquid tank, and is connected with computing machine by the signal acquisition process device.
Described liquid tank rocks assembly and comprises control box, pedestal, motor, rotation axis, slide block and guide rail, described computing machine is connected with motor by control box, described motor is installed on pedestal one end, described rotation axis is installed in the pedestal and with motor and is connected, described guide rail is installed on the pedestal, described liquid tank is positioned on the guide rail, and described slide block set is connected on the rotation axis and embeds in the guide rail, and described slider top is fixedlyed connected with tank bottom.
The resistance type wave height gauge of liquid tank inside can transfer to computing machine by the signal acquisition process device with the unrestrained high information of liquid free surface in the cabin, realizes facing survey in real time to what liquid in the cabin rocked situation.
Described pedestal is provided with for the groove that rotation axis is installed.
Described rotation axis is shape of threads rigidity rotation axle, and this rotation axis is connected with a joggle by screw thread and slide block, rotation axis drive when rotating slide block and on liquid tank move together, make the horizontal reciprocating movement amplitude of liquid tank and frequency to set arbitrarily within the specific limits.
Described guide rail is horizontal guide rail.
The liquid tank that described computing machine is imported according to the experimenter rocks amplitude and frequency was calculated rotational angular velocity and the counter-rotational time interval of rotation axis, and by control box control motor, makes that the rotation axis on the pedestal is realized this periodic back and forth rotation.At this moment, the liquid tank that meshes slide block thereon and be fixed thereon is done the linear reciprocating motion with respect to the rotation axis axis under the guiding of guide rail, liquid in the liquid tank begins to rock because of the periodicity positive motion of liquid tank, be located at the unrestrained high information that its inner resistance type wave height gauge record rocks liquid, and transmitting it to computing machine, computing machine demonstrates the Free Surface real time data that liquid tank liquid rocks.
Compared with prior art, the present invention can set reciprocating cycle of liquid tank and amplitude arbitrarily in certain amplitude and certain frequency scope, and under this motion-activated, record the Free Surface real time data that liquid rocks in the cabin, thereby understand the influence that ship motion is rocked liquid tank, can also realize stepless change in addition, improve the precision of test.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
As shown in Figure 1, a kind of active liquid tank rocks simulation test device, comprise computing machine 1, control box 2, pedestal 3, motor 4, rotation axis 5, slide block 6, guide rail 7, liquid tank 8, resistance type wave height gauge 9 and signal acquisition process device 10, described computing machine 1, control box 2 is connected successively with motor 4, described motor 4 is installed on pedestal 3 one ends, described pedestal 3 is provided with a groove, described rotation axis 5 is installed in the groove and with motor 4 and is connected, described guide rail 7 is installed on the pedestal 3, described liquid tank 8 is positioned on the guide rail 7, described slide block 6 is socketed on the rotation axis 5 and embeds in the guide rail 7, fixedly connected with liquid tank 8 bottoms in described slide block 6 tops, described resistance type wave height gauge 9 is located in the liquid tank 8, and is connected with computing machine 1 by signal acquisition process device 10.Described rotation axis 5 is shape of threads rigidity rotation axle.Be meshing with each other by screw thread between described slide block 6 and the rotation axis 5.Described guide rail 7 is horizontal guide rail.
At first according to testing requirements liquid tank 8 is loaded liquid, arrange and adjust each resistance type wave height gauge 9, with liquid tank 8 sealings; In the control software of computing machine 1, import amplitude and the cycle (or frequency) of liquid tank 8 horizontal reciprocating movements then according to testing requirements, control software calculates rotational angular velocity and the counter-rotational time interval of rotation axis 5 automatically according to the data of input, and order control software begins test; The instruction that computing machine 1 sends exports motor 4 to by control box 2, makes rotation axis 5 replace rotation at interval according to the angular velocity that calculates and reversed time; Under the driving of rotation axis 5, mesh slide block 6 thereon and the liquid tank 8 that is fixed on the slide block 6 and under the guiding of guide rail 7, begin to carry out horizontal linear reciprocating motion; Simultaneously, the resistance type wave height gauge 9 of liquid tank inside Free Surface real-time data record that liquid in the liquid tank 8 are rocked and feed back to signal acquisition process device 10; At last, to computing machine 1, computing machine 1 demonstrates the Free Surface real time data that liquid tank liquid rocks to signal acquisition process device 10 with result transmission, thereby makes the experimenter understand the influence that ship motion is rocked liquid tank.
Claims (6)
1. an active liquid tank rocks simulation test device, it is characterized in that, comprise that computing machine, liquid tank rock assembly, resistance type wave height gauge and signal acquisition process device, described computing machine rocks assembly with liquid tank and is connected, described liquid tank rocks assembly fixedlys connected with liquid tank, described resistance type wave height gauge is located in the liquid tank, and is connected with computing machine by the signal acquisition process device.
2. a kind of active liquid tank according to claim 1 rocks simulation test device, it is characterized in that, described liquid tank rocks assembly and comprises control box, pedestal, motor, rotation axis, slide block and guide rail, described computing machine is connected with motor by control box, described motor is installed on pedestal one end, described rotation axis is installed in the pedestal and with motor and is connected, described guide rail is installed on the pedestal, described liquid tank is positioned on the guide rail, described slide block set is connected on the rotation axis and embeds in the guide rail, and described slider top is fixedlyed connected with tank bottom.
3. a kind of active liquid tank according to claim 1 rocks simulation test device, it is characterized in that, the resistance type wave height gauge of liquid tank inside can transfer to computing machine by the signal acquisition process device with the unrestrained high information of liquid free surface in the cabin, realizes facing survey in real time to what liquid in the cabin rocked situation.
4. a kind of active liquid tank according to claim 2 rocks simulation test device, it is characterized in that, described pedestal is provided with for the groove that rotation axis is installed.
5. a kind of active liquid tank according to claim 2 rocks simulation test device, it is characterized in that, described rotation axis is shape of threads rigidity rotation axle, this rotation axis is connected with a joggle by screw thread and slide block, rotation axis drive when rotating slide block and on liquid tank move together, make the horizontal reciprocating movement amplitude of liquid tank and frequency to set arbitrarily within the specific limits.
6. a kind of active liquid tank according to claim 2 rocks simulation test device, it is characterized in that, described guide rail is horizontal guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310148125.4A CN103196652B (en) | 2013-04-25 | 2013-04-25 | A kind of active liquid tank oscillation simulation test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310148125.4A CN103196652B (en) | 2013-04-25 | 2013-04-25 | A kind of active liquid tank oscillation simulation test device |
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| CN103196652A true CN103196652A (en) | 2013-07-10 |
| CN103196652B CN103196652B (en) | 2016-02-10 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266819A (en) * | 2014-09-03 | 2015-01-07 | 河海大学 | Device for simulating liquid sloshing generated under random wave action and wave generation method thereof |
| CN104406767A (en) * | 2014-11-23 | 2015-03-11 | 大连理工大学 | Variable structure type C type LNG (liquefied natural gas) liquid tank oscillation test system |
| CN104655443A (en) * | 2015-02-17 | 2015-05-27 | 中国海洋石油总公司 | Device and method for simulating floating shaking conditions |
| CN104713696A (en) * | 2015-02-04 | 2015-06-17 | 中国海洋石油总公司 | Model test method for independent C-type LNG liquid tank |
| CN105277335A (en) * | 2015-10-26 | 2016-01-27 | 中国科学院力学研究所 | Liquid-gas interaction vibration experiment device |
| CN105784320A (en) * | 2016-03-24 | 2016-07-20 | 河海大学 | Liquid tank sloshing experiment integration device and using method thereof |
| CN105806578A (en) * | 2016-05-05 | 2016-07-27 | 哈尔滨工程大学 | Hydraulically actuated liquid tank sloshing testing device |
| CN106441964A (en) * | 2016-09-14 | 2017-02-22 | 中海石油气电集团有限责任公司 | Floating type test platform of natural gas liquefaction system |
| CN104764587B (en) * | 2015-04-28 | 2017-10-13 | 中国石油大学(华东) | A kind of sloshing experimental provision |
| CN110455479A (en) * | 2019-08-07 | 2019-11-15 | 中国科学院力学研究所 | A kind of cylinder vortex-induced vibration experimental provision of micro-structure damping, analogy method |
| CN110615070A (en) * | 2019-10-22 | 2019-12-27 | 浙江大学宁波理工学院 | Rectangular liquid tank sloshing damping device and rectangular liquid tank hydrodynamic force calculation method |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266819A (en) * | 2014-09-03 | 2015-01-07 | 河海大学 | Device for simulating liquid sloshing generated under random wave action and wave generation method thereof |
| CN104406767A (en) * | 2014-11-23 | 2015-03-11 | 大连理工大学 | Variable structure type C type LNG (liquefied natural gas) liquid tank oscillation test system |
| CN104406767B (en) * | 2014-11-23 | 2017-08-25 | 大连理工大学 | Structure changes formula c-type LNG sloshing pilot systems |
| CN104713696A (en) * | 2015-02-04 | 2015-06-17 | 中国海洋石油总公司 | Model test method for independent C-type LNG liquid tank |
| CN104655443B (en) * | 2015-02-17 | 2017-06-09 | 中国海洋石油总公司 | It is a kind of to simulate the apparatus and method that floating rocks condition |
| CN104655443A (en) * | 2015-02-17 | 2015-05-27 | 中国海洋石油总公司 | Device and method for simulating floating shaking conditions |
| CN104764587B (en) * | 2015-04-28 | 2017-10-13 | 中国石油大学(华东) | A kind of sloshing experimental provision |
| CN105277335A (en) * | 2015-10-26 | 2016-01-27 | 中国科学院力学研究所 | Liquid-gas interaction vibration experiment device |
| CN105277335B (en) * | 2015-10-26 | 2017-12-12 | 中国科学院力学研究所 | The vibration testing device of liquid atmosphere interaction |
| CN105784320A (en) * | 2016-03-24 | 2016-07-20 | 河海大学 | Liquid tank sloshing experiment integration device and using method thereof |
| CN105806578A (en) * | 2016-05-05 | 2016-07-27 | 哈尔滨工程大学 | Hydraulically actuated liquid tank sloshing testing device |
| CN105806578B (en) * | 2016-05-05 | 2018-12-25 | 哈尔滨工程大学 | A kind of hydraulic actuation formula sloshing experimental rig |
| CN106441964A (en) * | 2016-09-14 | 2017-02-22 | 中海石油气电集团有限责任公司 | Floating type test platform of natural gas liquefaction system |
| CN106441964B (en) * | 2016-09-14 | 2018-10-02 | 中海石油气电集团有限责任公司 | A kind of test platform of floating natural gas liquefaction system |
| CN110455479A (en) * | 2019-08-07 | 2019-11-15 | 中国科学院力学研究所 | A kind of cylinder vortex-induced vibration experimental provision of micro-structure damping, analogy method |
| CN110455479B (en) * | 2019-08-07 | 2021-01-15 | 中国科学院力学研究所 | Microstructure-damped cylinder vortex-induced vibration experimental device and simulation method |
| CN110615070A (en) * | 2019-10-22 | 2019-12-27 | 浙江大学宁波理工学院 | Rectangular liquid tank sloshing damping device and rectangular liquid tank hydrodynamic force calculation method |
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| CN103196652B (en) | 2016-02-10 |
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