CN210719656U - Large-scale wave water tank pipeline vortex-induced vibration experimental device - Google Patents
Large-scale wave water tank pipeline vortex-induced vibration experimental device Download PDFInfo
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- CN210719656U CN210719656U CN201921554921.7U CN201921554921U CN210719656U CN 210719656 U CN210719656 U CN 210719656U CN 201921554921 U CN201921554921 U CN 201921554921U CN 210719656 U CN210719656 U CN 210719656U
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- sliding block
- induced vibration
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Abstract
The utility model provides a large scale wave water tank pipeline vortex-induced vibration experimental device, which belongs to the technical field of ocean engineering and comprises a fixing frame, a guide rail, a slide block, a spring, a limit clamp, a fixing support, an underwater camera, a current meter and a false bottom, wherein the fixing frame is fixed on the inner wall of a water tank, the guide rail is arranged on the fixing frame, the slide block is arranged on the guide rail, the upper part of the spring is connected with the limit clamp, the lower part of the spring is connected with the upper surface of the slide block, the limit clamp is fixed in a way of being vertical to the inner side of the fixing frame, one end of the fixing support is connected with the lower surface of the slide block, the other end of the fixing support is connected with a test vertical pipe, one displacement sensor is arranged on the slide block at the left side, the other displacement sensor is arranged on the, the flow meter is arranged on the right side of the plane where the fixing frame is located, and the false bottom is fixed at the bottom of the water tank.
Description
Technical Field
The utility model belongs to the technical field of ocean engineering, a big scale wave water tank pipeline whirlpool induced vibration experimental apparatus is related to.
Background
Vortex-induced vibration generally exists in ocean engineering application, pipeline structures such as an ocean riser and the like cause vortex-induced vibration under the streaming separation effect of fluid, when the vortex-induced vibration frequency is the same as or close to the vibration frequency of the pipeline structure, a resonance phenomenon is generated, the service life of the pipeline structure is shortened, and the influence of the vortex-induced vibration on the pipeline needs to be researched through a vortex-induced vibration experiment. The traditional wave water tank vortex-induced vibration experiment is usually carried out in the liquid-removing water, and because the flow velocity of a small water tank is limited by too small and the like, the acquisition of experimental data is inconvenient, so that the experiment is carried out in the water tank with a large flow velocity. Therefore, the original experimental device cannot meet the configuration in a large water tank, and the invention of the large-scale wave water tank pipeline vortex-induced vibration experimental device is urgently needed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a big scale wave basin pipeline whirlpool induced vibration experimental apparatus, data are accurate, and the experiment is effectual.
In order to solve the technical problem, the utility model discloses a technical scheme is: a large-scale wave water tank pipeline vortex-induced vibration experimental device belongs to the technical field of ocean engineering and comprises a fixed frame, a guide rail, a sliding block, a spring, a limiting clamp, a fixed support, a displacement sensor, an underwater camera, a current meter, a riveting hole and a false bottom, wherein the fixed frame is fixed on the inner wall of a water tank through the riveting hole, the sliding block is arranged on the guide rail, the upper part of the spring is connected with the limiting clamp, the lower part of the spring is connected with the upper surface of the sliding block, the limiting clamp is fixed perpendicular to the inner side of the fixed frame and is divided into an upper part and a lower part, the distance between the two parts is equal to the length of the guide rail, one end of the fixed support is connected with the lower surface of the sliding block, the other end of the fixed support is connected with a test vertical pipe, one of the displacement, the underwater camera is arranged on the left side of the plane where the fixing frame is located, the flow meter is arranged on the right side of the plane where the fixing frame is located, and the false bottom is fixed to the bottom of the water tank.
Furthermore, the fixing frame is made of carbon steel or alloy steel materials and is used for supporting the whole experimental device.
Further, the rivet hole penetrates through the surface of the fixing frame.
Further, the guide rail and the sliding block are made of stainless steel, the guide rail is perpendicular to the sliding block, and the guide rail and the sliding block form a linear rail structure.
Furthermore, the spring is located the slider top and is parallel with the guide rail, and spring and mount are located the guide rail left and right sides respectively, and the spring will be easily changed.
Further, the current meter is placed on the right side of the plane where the fixing frame is located, 6 current meters need to be arranged, the current meters are placed on two independent supports located on the false bottom respectively, 3 current meters and equal distances are placed on each support, the two current meters on the two supports are placed in parallel, and the vertical uniformity and the horizontal symmetry of the positions of the current meters are guaranteed.
Furthermore, the test vertical pipe is vertically fixed on the fixed support, and two trisection force sensors are respectively arranged at two ends of the test vertical pipe.
Compared with the prior art, the utility model has the advantages and positive effect as follows:
1. the utility model discloses experiment in the basin of the high velocity of flow, it is accurate, reliable to record data, and can not cause harmful effects to the environment, accords with the requirement of green development.
2. The utility model discloses used spring is easily changed to different intensity, and the convenience is tested many times, has guaranteed the contrast nature of experiment, and convenient follow-up further analysis carries out.
3. The utility model discloses totally need to arrange 6 current meters, the current meter position has kept vertical homogeneity and horizontal direction symmetry, has guaranteed the accuracy of experimental data.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is the utility model discloses a big scale wave basin pipeline vortex induced vibration experimental apparatus's positive sketch.
Fig. 2 is the utility model relates to a big scale wave basin pipeline vortex induced vibration experimental apparatus's side schematic diagram.
Fig. 3 is the utility model relates to a big scale wave basin pipeline vortex induced vibration experimental apparatus's local enlargements.
Reference numerals:
1. a fixed mount; 2. a guide rail; 3. a slider; 4. a spring; 5. a limiting card; 6. fixing a bracket; 7. a displacement sensor; 8. an underwater camera; 9. a current meter; 10. riveting holes; 11. false bottom; 12. a three-component force sensor; 13. the riser is tested.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1-3, the utility model relates to a big scale wave basin pipeline vortex induced vibration experimental apparatus, fix on the basin inner wall through riveting hole 10 including mount 1, riveting hole 10 runs through mount 1 surface, slide block 3 is arranged in on the guide rail 2, 4 upper portions of spring link to each other and the lower part links to each other with slide block 3 with mount 1, spacing card 5 is fixed in mount 1 inboard, displacement sensor 7 installs respectively in mount 1 both sides, one end is fixed on mount 1, the other end is fixed on slide block 3, test riser 13 links to each other with slide block 3 through fixed bolster 6, three fens force transducer 12 are fixed at riser 13 both ends, camera 8 arranges mount 1 place planar left side in under water, the planar right side in mount 1 place is arranged in to velocity of flow appearance 9, false end 11 is fixed in the basin bottom.
Preferably, the fixing frame 1 is made of carbon steel or alloy steel, and unnecessary displacement can be reduced due to high rigidity, so that the accuracy of experimental data is ensured.
Preferably, the rivet hole 10 penetrates through the surface of the fixing frame 1, so that the whole experimental device is convenient to fix.
Preferably, guide rail 2 is used for restricting the direction that the spring reciprocated, and slider 3 can move on guide rail 2, and guide rail 2 and slider 3 are stainless steel, and is difficult for rustting, has guaranteed the durability of experimental device.
Preferably, the spring 4 is located at the top end of the sliding block 3 and is parallel to the guide rail 2, the spring 4 is easy to replace, the implementation of the experiment is convenient, and the spring 4 with various strengths is used for testing so as to obtain various experimental data for comparative analysis.
Preferably, the limiting card 5 is placed at the lowest end of the guide rail and is perpendicular to the fixing frame, and is used for limiting the maximum amplitude of the up-and-down movement of the spring, so that the spring 4 is kept in a normal deformation range, and the rigidness of experimental data is guaranteed.
Preferably, the current meter 9 is placed on the right side of the plane of the fixed frame 1, 6 current meters 9 need to be arranged, the current meters 9 are respectively placed on two independent supports on the false bottom 11, 3 current meters 9 are placed on each support at equal intervals, the current meters 9 on the two supports are placed in parallel, and the vertical uniformity and the horizontal symmetry of the positions of the current meters 9 are guaranteed.
Preferably, the test stand pipe 13 is fixed on the fixed support 6 and is perpendicular to the fixed support 6, and two trisection force sensors 12 are respectively placed at two ends of the test stand pipe 13 to record the stress conditions at two ends of the stand pipe 13.
In the actual working process, the fixing frame 1 is fixed on the inner wall of the water tank through the rivet holes 10, and the underwater camera 8 and the flow velocity meter 9 are respectively placed on the false bottoms 11 on two sides of the plane where the fixing frame 1 is located. After the experiment is started, the test vertical pipe 13 is connected with the sliding block 3 through the fixed support 6, the sliding block 3 is connected with the spring 4, the force is applied to start moving, and the three-component force sensor 12 generates data; the test stand pipe 13 generates displacement along the direction of the guide rail 2 and is restrained by the position of the limit card 5, and the displacement sensor 7 generates data; the underwater camera 8 clearly observes the motion state of the test stand pipe 13, the flow velocity meter 9 generates data, a plurality of groups of experimental data can be obtained by replacing springs 4 with different strengths, the measured data are accurate and reliable, no adverse effect is caused on the environment, and the requirement of green development is met; the experiment is carried out in the water tank with large flow velocity, and the acquisition of experimental data is facilitated.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (6)
1. The utility model provides a big scale wave basin pipeline vortex induced vibration experimental apparatus which characterized in that: comprises a fixed frame (1), a guide rail (2), a sliding block (3), a spring (4), a limiting clamp (5), a fixed support (6), a displacement sensor (7), an underwater camera (8), a flow velocity meter (9) and a false bottom (11), wherein the fixed frame (1) is fixed on the inner wall of a water tank, the guide rail (2) is installed on the fixed frame (1), the sliding block (3) is arranged on the guide rail (2), the upper part of the spring (4) is connected with the limiting clamp (5) and the lower part of the spring is connected with the upper surface of the sliding block (3), the limiting clamp (5) is fixed perpendicular to the inner side of the fixed frame (1) and is divided into an upper part and a lower part, the distance between the two parts is equal to the length of the guide rail (2), one end of the fixed support (6) is connected with the lower surface of the sliding block (3) and the other end is, the other one is arranged on a right-side fixing frame (1), the testing vertical pipe is vertically connected with a fixing support (6), three-component force sensors (12) are fixed at two ends of the vertical pipe, an underwater camera (8) is arranged on the left side of the plane where the fixing frame (1) is located, a flow velocity meter (9) is arranged on the right side of the plane where the fixing frame (1) is located, and a false bottom (11) is fixed at the bottom of the water tank.
2. The large-scale wave water tank pipeline vortex-induced vibration experimental device as claimed in claim 1, wherein: the fixing frame (1) is made of carbon steel or alloy steel.
3. The large-scale wave water tank pipeline vortex-induced vibration experimental device as claimed in claim 1, wherein: the guide rail (2) and the sliding block (3) are made of stainless steel, the guide rail (2) is perpendicular to the sliding block (3) and is placed, and the guide rail (2) and the sliding block (3) form a linear rail structure.
4. The large-scale wave water tank pipeline vortex-induced vibration experimental device as claimed in claim 1, wherein: the spring (4) is positioned at the top end of the sliding block (3) and is parallel to the guide rail (2), and the spring (4) and the fixed frame (1) are respectively positioned at the left side and the right side of the guide rail (2).
5. The large-scale wave water tank pipeline vortex-induced vibration experimental device as claimed in claim 1, wherein: the flow velocity meters (9) are arranged on the right side of the plane where the fixed frame (1) is located, 6 flow velocity meters (9) are required to be arranged, the flow velocity meters (9) are respectively arranged on two independent supports located on the false bottom (11), 3 flow velocity meters (9) are arranged on each support at equal intervals, and the flow velocity meters (9) on the two supports are arranged in parallel.
6. The large-scale wave water tank pipeline vortex-induced vibration experimental device as claimed in claim 1, wherein: the test vertical pipe (13) is vertically fixed on the fixed support (6), and two trisection force sensors (12) are respectively arranged at two ends of the test vertical pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921554921.7U CN210719656U (en) | 2019-09-18 | 2019-09-18 | Large-scale wave water tank pipeline vortex-induced vibration experimental device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921554921.7U CN210719656U (en) | 2019-09-18 | 2019-09-18 | Large-scale wave water tank pipeline vortex-induced vibration experimental device |
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| CN210719656U true CN210719656U (en) | 2020-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146833A (en) * | 2020-09-24 | 2020-12-29 | 江苏海洋大学 | Experimental device for simulating submarine pipeline vortex-induced vibration in complex marine environment |
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2019
- 2019-09-18 CN CN201921554921.7U patent/CN210719656U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146833A (en) * | 2020-09-24 | 2020-12-29 | 江苏海洋大学 | Experimental device for simulating submarine pipeline vortex-induced vibration in complex marine environment |
| CN112146833B (en) * | 2020-09-24 | 2021-09-14 | 江苏海洋大学 | Experimental device for simulating submarine pipeline vortex-induced vibration in complex marine environment |
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