CN104502043A - Elongated stand pipe power response measurement device through simulating seabed pipe soil and horizontal forced oscillation - Google Patents
Elongated stand pipe power response measurement device through simulating seabed pipe soil and horizontal forced oscillation Download PDFInfo
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Abstract
Provided is an elongated stand pipe power response measurement device through simulating seabed pipe soil and horizontal forced oscillation. The device comprises a deep sea stand pipe module, a top part boundary module, a bottom part boundary module, a fixing module, a top part slide module, a bottom part sand plate module and a measurement, analysis and control module. The two ends of the deep sea stand pipe module are respectively connected with the top part boundary module and the bottom part boundary module. The fixing module is connected with the top part boundary module and the top part slide module. The top part slide module is connected with the fixed end of the bottom part of a trailer. The bottom part sand plate module is connected with the bottom part boundary module and a pool small false bottom. The measurement, analysis and control module is respectively connected with the deep sea stand pipe module, the top part boundary module, the bottom part boundary module, the fixing module, the top part slide module and the bottom part sand plate module. Vortex-inducted vibration of the stand pipe with the movable top end can be tested by the device through simulating the seabed pipe soil effect and the horizontal forced oscillation state.
Description
Technical field
The present invention relates to oceanographic engineering field, relating to one particularly can measure elongated standpipe dynamic response under the effect of simulated sea bottom pipeclay and horizontal forced oscillation, monitors the experimental provision of vortex-induced vibration (VIV) simultaneously.
Background technology
Under the effect of stormy waves stream, drive catenary riser is made periodic reverse motion by marine floating type works in water, thus Relative Oscillation incoming flow is produced in standpipe direction of motion, this vibration incoming flow will encourage standpipe pendency section that the vortex-induced vibration of " intermittence " occurs.Under floating motion and environmental load effect, the interaction of standpipe and sea bed, can make standpipe produce very large bending stress, easily fatigure failure occur.In recent years, along with the exploitation of deep-sea oil system, engineering starts adopt catenary riser in a large number.Standpipe in deepwater environment can be considered elongated flexible structure, now small deformation theory is no longer applicable, this makes the vortex-induced vibration problem of standpipe more outstanding, and the analysis therefore for the overall vortex-induced vibration response characteristic under slender flexible standpipe top platform and sea bed effect is that can it be applied to the key point of engineering practice.
Forecast that the vortex-induced vibration of slender marine structures endangered the most frequently used method is numerical evaluation SHEAR7, VIVA, VIVANA in the past, thisly predicts that the method for load and response still has very large uncertainty so far by theoretical formula.So far, be exactly model test method to one of most important method of research of flexible pipe vortex-induced vibration phenomenon.The phenomenon observed in model test is closer to natural truth.By the retrieval to prior art, riser model test is generally carried out in towing oceanographic engineering swimmer's pool, and what have carries out in annular water tank, and what have drags with towboat the test that standpipe carries out vortex-induced vibration.Be published in the paper " Experimentswith a steel catenary riser model in a towing tank " (the slender flexible standpipe model experiment in towing basin) in " Applied Ocean Research (2013) " 43 periodical, the steady flow condition around standpipe is simulated in the compartment be connected with standpipe by operation in towing basin, and standpipe is installed the state of miniature acceleration measuring instrument monitoring standpipe.Analyze this kind of measuring technology, find its not foot point be: the degree of depth 1, considering towing basin, generally can only simulate the vortex-induced vibration of small scale pipe fitting, be difficult to effectively to carry out the vortex-induced vibration test under real Reynolds number; 2, the interaction of standpipe and sea bed cannot be simulated by experiment; 3, being not easy to arrange the watch-dog under water around standpipe, the shape of standpipe can not be regulated when carrying out the test of sloping wave type riser model; 4, the forced oscillation experiment under certain flow rate can not be carried out; 5, standpipe process is installed in an experiment more complicated; 6, the motion of ocean platform can not effectively be simulated.
Summary of the invention
For the technical matters existed in above-mentioned prior art, the present invention proposes one can measure elongated standpipe dynamic response under the effect of simulated sea bottom pipeclay and horizontal forced oscillation, monitor the device of VIV simultaneously, aim to provide a kind of can the vortex-induced vibration test device of the movable standpipe in top under the effect of simulated sea bottom pipeclay and horizontal forced oscillation state, physical size standpipe, ocean platform motion can be simulated, and the vortex-induced vibration test device that oceanographic engineering swimmer's pool carries out flexible riser model can be placed in for a long time.
For achieving the above object, the technical solution adopted in the present invention is as follows:
Elongated standpipe dynamic response device is measured in a kind of simulated sea bottom pipeclay and horizontal forced oscillation, comprise deep sea vertical pipe module, top boundary module, bottom boundary module, stuck-module, top slide module, the husky plate module in bottom, Measurement and analysis control module, wherein: deep sea vertical pipe module two ends are connected with bottom boundary module with top boundary module respectively, stuck-module is connected with top slide module with top boundary module, top slide module is connected with stiff end bottom trailer, the husky plate module in bottom was connected with bottom boundary module and the pond little false end, deep sea vertical pipe module respectively with stuck-module, the husky plate module of top slide module and bottom is in same plane, Measurement and analysis control module respectively with deep sea vertical pipe module, top boundary module, bottom boundary module, stuck-module, top slide module, the husky plate module in bottom is connected.
Described deep sea vertical pipe module comprises: deep sea vertical pipe model, Fibre Optical Sensor, and wherein Fibre Optical Sensor is arranged on deep sea vertical pipe, and the top of standpipe is connected with top boundary module, and the bottom of standpipe is connected with bottom boundary module.
Described top boundary module comprises: top clamp outer rim, top clamp base plate, first backing plate, first universal joint fixed head, universal joint wheelwork, second universal joint fixed head, three component instrument fixed heads, three component instrument, first adjustment assembly, first voussoir, wherein, top clamp outer rim is connected with deep sea vertical pipe model, both are in same plane, top clamp base plate and top clamp outer rim affixed, and be connected with the first backing plate, first universal joint fixed head is connected with universal joint wheelwork with the first backing plate, universal joint wheelwork and the first universal joint fixed head and the second universal joint fixed head affixed, second universal joint fixed head is connected with three component instrument fixed head sides, the opposite side of three component instrument fixed heads is connected with three component instrument, the end and first of three component instrument adjusts assembly and is connected, the opposite side of the first adjustment assembly is fixed on the first voussoir, the side of the first voussoir is fixed on the vertical fixed block in stuck-module.
Described bottom boundary module comprises: bottom jig outer rim, bottom jig base plate, bottom linker, single component instrument, second adjustment assembly, second backing plate, 3rd universal joint fixed head, universal joint wheelwork, 4th universal joint fixed head, bottom fixed board, wherein, bottom jig outer rim is connected with deep sea vertical pipe model, both are in same plane, bottom jig base plate and bottom jig outer rim affixed, affixed with bottom linker, bottom linker other end is connected with single component instrument, single component instrument adjusts assembly with bottom linker and second and is connected, second adjustment assembly is connected with the second backing plate, second backing plate and the 3rd universal joint fixed head affixed, 3rd universal joint fixed head and universal joint wheelwork Joint, the opposite side of universal joint wheelwork and the 4th universal joint fixed head Joint, the opposite side of the 4th universal joint fixed head and bottom fixed board Joint, bottom fixed board is welded on the husky plate panel of change of the husky plate module in bottom.
Described stuck-module comprises: radome fairing, vertical fixing plate and vertical fixed block; Described vertical fixing plate is arranged on the first slide block of top slide module, and it is slidably fitted with vertical fixed block, both sides are separately installed with radome fairing, the first voussoir Joint in described vertical fixed block and top boundary module.
Described top slide module comprises: the first Power Component, the first flange apparatus, the first slide block, the first guide chain, the first sliding rail, the first bracing frame, wherein, first Power Component is connected with the first sliding rail by the first flange apparatus, its turning axle is connected on the first slide block by the first guide chain, first skid is supported on the first sliding rail, and is connected with the vertical fixing plate on stuck-module.
The husky plate module in described bottom comprises: become husky plate panel, plate mended by panel, panel contiguous block, the second contiguous block, bottom trapped orbit, second bracing frame, the bottom wherein becoming husky plate panel is connected on the bottom fixed board in bottom boundary module, and panel is mended plate and is welded at little the false end, and be connected with two pieces of panel contiguous blocks, the second contiguous block that panel contiguous block and panel are mended on plate is affixed, and panel is mended plate and is welded on the trapped orbit of bottom, and bottom trapped orbit is welded on the second bracing frame.
Described Measurement and analysis control module comprises: data collection processor, motion controller and display, wherein: three component instrument in the input end of data collection processor and described top boundary module and the single component instrument in bottom boundary module, and Fibre Optical Sensor is connected, its output terminal is connected with display; Motion controller comprises motion control output window and image display port, and motion control output window and described top slide module, being connected of the husky plate module in bottom, image display port is connected with display.
The advantage that the present invention has and good effect are:
1, the present invention can realize the vortex-induced vibration test of standpipe under uniform incoming flow effect;
2, the present invention can simulate different-stiffness sea bed lower standing tube be subject to top platform impact after motion conditions;
3, the present invention can make full use of the real Reynolds number vortex-induced vibration of the Simulation of depth large-size pipe of oceanographic engineering swimmer's pool;
4, the present invention can make full use of the width of oceanographic engineering swimmer's pool at large-size pipe periphery real-time monitoring equipment, needs to adjust the shape of model according to difference;
5, the present invention adopts modular design, and advantage is to be convenient to install, and is convenient to upgrading and change, and meets different functional requirements;
6, the present invention can simulate the motion of riser top ocean platform, carries out the test of more real vortex-induced vibration.
Accompanying drawing explanation
Fig. 1 is the structural representation of experimental provision provided by the invention;
Fig. 2 is the top junction composition of experimental provision provided by the invention;
Fig. 3 is the chart at the bottom of of experimental provision provided by the invention;
Fig. 4 is the structural representation of deep sea vertical pipe module provided by the invention;
Fig. 5 is the structural representation of top boundary module provided by the invention;
Fig. 6 is the structural representation of bottom boundary module provided by the invention;
Fig. 7 is the side view of stuck-module provided by the invention;
Fig. 8 is the structural representation of top slide module provided by the invention;
Fig. 9 is the side view of top slide module provided by the invention
Figure 10 is the structural representation of the husky plate module in bottom provided by the invention;
Figure 11 is the partial schematic diagram of the husky plate module in bottom provided by the invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
As Fig. 1, shown in Fig. 2 and Fig. 3, device provided by the invention comprises: deep sea vertical pipe module 1, top boundary module 2, bottom boundary module 3, stuck-module 4, top slide module 5, the husky plate module 6 in bottom, Measurement and analysis control module 7, wherein: the top of deep sea vertical pipe module 1 neutral tube is connected with top boundary module 2, the bottom of standpipe is connected with bottom boundary module 3, fixture outer rim wherein in top boundary module 2 is connected with deep sea vertical pipe module 1 by screw, top boundary module 2 is fixed on stuck-module 4, fixture outer rim in bottom boundary module 3 is connected with deep sea vertical pipe module 1 by screw, bottom fixed board is welded in the husky plate module 6 in bottom, one end in stuck-module 4 is arranged in top slide module 5, the first voussoir Joint in vertical fixed block and top boundary module, top slide module is connected with one end of trailer, the bottom of the husky plate module 6 in bottom is connected in bottom boundary module 3, trailer is placed Measurement and analysis control module 7.
As shown in Figure 4, described deep sea vertical pipe module 1 comprises deep sea vertical pipe model 9, Fibre Optical Sensor 8, and wherein Fibre Optical Sensor 8 is arranged on deep sea vertical pipe model 9, the top of deep sea vertical pipe model 9 is connected with top boundary module 2, and the bottom of deep sea vertical pipe model 9 is connected with bottom boundary module 3.
As shown in Figure 5, described top boundary module 2 comprises: top clamp outer rim 10, screw 11, top clamp base plate 12, first backing plate 13, first universal joint fixed head 14, first universal joint wheelwork 15, second universal joint fixed head 16, one or three component instrument fixed head 17, one or three component instrument 18, first adjustment assembly 19, first voussoir 20, wherein top clamp outer rim 10 is connected with deep sea vertical pipe model 9 by screw 11, both are in same plane, top clamp base plate 12 is affixed with top clamp outer rim 11, be connected with the first backing plate 13 screw 11, first universal joint fixed head 14 is connected with the first universal joint wheelwork 15 with the first backing plate 13, first universal joint wheelwork 15 and the first universal joint fixed head 14 and the second universal joint fixed head affixed 16, second universal joint fixed head 16 is connected with three component instrument fixed head 17 sides, the opposite side of three component instrument fixed heads 17 is connected with three component instrument 18, the end and first of three component instrument 18 adjusts assembly 19 and is connected, the opposite side of the first adjustment assembly 19 is fixed on the first voussoir 20, the side of the first voussoir 20 is fixed on the vertical fixed block 33 in stuck-module 4.
As shown in Figure 6, described bottom boundary module 3 comprises: bottom jig outer rim 21, screw 22, bottom jig base plate 23, second backing plate 24, 3rd universal joint fixed head 25, second universal joint wheelwork 26, 4th universal joint fixed head 27, two or three component instrument fixed head 28, two or three component instrument 29, bottom fixed board 30, wherein bottom jig outer rim 21 is connected with deep sea vertical pipe model 9 by screw 22, both are in same plane, bottom jig base plate 23 is affixed with bottom jig outer rim 21, affixed with the second backing plate 24, 3rd universal joint fixed head 25 is connected with the second universal joint wheelwork 26 with the second backing plate 24, second universal joint wheelwork 26 and the 3rd universal joint fixed head 25 and the 4th universal joint fixed head 27 affixed, 4th universal joint fixed head 27 is connected with the two or three component instrument fixed head 28 side, the opposite side of three component instrument fixed heads 28 is connected with three component instrument 29, the end of three component instrument 29 is connected with bottom fixed board 30, bottom fixed board 30 is welded on the husky plate panel 40 of change of the husky plate module 6 in bottom.
As shown in Figure 7, described stuck-module 4 comprises: radome fairing 31, vertical fixing plate 32 and vertical fixed block 33; Described vertical fixing plate 32 is arranged on the first slide block 36 of top slide module 5, and it is slidably fitted with vertical fixed block 33, both sides are separately installed with radome fairing 31, described vertical fixed block 33 and the first voussoir 20 Joint in top boundary module 2.
As Fig. 8, shown in Fig. 9, described top slide module 5 comprises: the first Power Component 34, first flange apparatus 35, first slide block 36, first guide chain 37, first sliding rail 38, first bracing frame 39, wherein the first Power Component 34 is connected with the first sliding rail 38 by the first flange apparatus 35, its turning axle is connected on the first slide block 36 by the first guide chain 37, first slide block 36 is slidably supported on the first sliding rail 38, and be connected with the vertical fixing plate 32 on stuck-module 4, first bracing frame 39 is fixed in Measurement and analysis control module 7, make it can interlock.
As Figure 10, shown in Figure 11, the husky plate module 6 in described bottom comprises: become husky plate panel 40, plate 41 mended by panel, panel contiguous block 42, second Power Component 43, second flange apparatus 44, second contiguous block 45, second guide chain 46, second sliding rail 47, second bracing frame 48, the bottom wherein becoming husky plate panel 40 is connected on the bottom fixed board 30 in bottom boundary module 3, panel contiguous block 42 is welded on and becomes immediately below husky plate panel 40, and mend plate 41 with two pieces of panels and be connected, panel is mended plate 1 and is welded on the second contiguous block 45, bottom all the other, husky plate module 6 form and top slide module 5 form class are seemingly, specifically, second Power Component 43 is connected with the second sliding rail 47 by the second flange apparatus 44, its turning axle is connected on the second contiguous block 45 by the second guide chain 46, second contiguous block 45 is fixed on the second sliding rail 47.Second bracing frame 48 is supported at the false end, pond.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. elongated standpipe dynamic response device is measured in a simulated sea bottom pipeclay and horizontal forced oscillation, it is characterized in that, comprise deep sea vertical pipe module, top boundary module, bottom boundary module, stuck-module, top slide module, the husky plate module in bottom, Measurement and analysis control module, wherein: deep sea vertical pipe module two ends are connected with bottom boundary module with top boundary module respectively, stuck-module is connected with top slide module with top boundary module, top slide module is connected with stiff end bottom trailer, the husky plate module in bottom was connected with bottom boundary module and the pond little false end, deep sea vertical pipe module respectively with stuck-module, the husky plate module of top slide module and bottom is in same plane, Measurement and analysis control module respectively with deep sea vertical pipe module, top boundary module, bottom boundary module, stuck-module, top slide module, the husky plate module in bottom is connected.
2. elongated standpipe dynamic response device is measured in simulated sea bottom pipeclay according to claim 1 and horizontal forced oscillation, it is characterized in that, described deep sea vertical pipe module comprises: deep sea vertical pipe model, Fibre Optical Sensor, wherein Fibre Optical Sensor is arranged on deep sea vertical pipe, the top of standpipe is connected with top boundary module, and the bottom of standpipe is connected with bottom boundary module.
3. elongated standpipe dynamic response device is measured in simulated sea bottom pipeclay according to claim 1 and horizontal forced oscillation, it is characterized in that, described top boundary module comprises: top clamp outer rim, top clamp base plate, first backing plate, first universal joint fixed head, universal joint wheelwork, second universal joint fixed head, three component instrument fixed heads, three component instrument, first adjustment assembly, first voussoir, wherein, top clamp outer rim is connected with deep sea vertical pipe model, both are in same plane, top clamp base plate and top clamp outer rim affixed, and be connected with the first backing plate, first universal joint fixed head is connected with universal joint wheelwork with the first backing plate, universal joint wheelwork and the first universal joint fixed head and the second universal joint fixed head affixed, second universal joint fixed head is connected with three component instrument fixed head sides, the opposite side of three component instrument fixed heads is connected with three component instrument, the end and first of three component instrument adjusts assembly and is connected, the opposite side of the first adjustment assembly is fixed on the first voussoir, the side of the first voussoir is fixed on the vertical fixed block in stuck-module.
4. elongated standpipe dynamic response device is measured in simulated sea bottom pipeclay according to claim 1 and horizontal forced oscillation, it is characterized in that, described bottom boundary module comprises: bottom jig outer rim, bottom jig base plate, bottom linker, single component instrument, second adjustment assembly, second backing plate, 3rd universal joint fixed head, universal joint wheelwork, 4th universal joint fixed head, bottom fixed board, wherein, bottom jig outer rim is connected with deep sea vertical pipe model, both are in same plane, bottom jig base plate and bottom jig outer rim affixed, affixed with bottom linker, bottom linker other end is connected with single component instrument, single component instrument adjusts assembly with bottom linker and second and is connected, second adjustment assembly is connected with the second backing plate, second backing plate and the 3rd universal joint fixed head affixed, 3rd universal joint fixed head and universal joint wheelwork Joint, the opposite side of universal joint wheelwork and the 4th universal joint fixed head Joint, the opposite side of the 4th universal joint fixed head and bottom fixed board Joint, bottom fixed board is welded on the husky plate panel of change of the husky plate module in bottom.
5. elongated standpipe dynamic response device is measured in simulated sea bottom pipeclay according to claim 1 and horizontal forced oscillation, and it is characterized in that, described stuck-module comprises: radome fairing, vertical fixing plate and vertical fixed block; Described vertical fixing plate is arranged on the first slide block of top slide module, and it is slidably fitted with vertical fixed block, both sides are separately installed with radome fairing, the first voussoir Joint in described vertical fixed block and top boundary module.
6. elongated standpipe dynamic response device is measured in simulated sea bottom pipeclay according to claim 1 and horizontal forced oscillation, it is characterized in that, described top slide module comprises: the first Power Component, the first flange apparatus, the first slide block, the first guide chain, the first sliding rail, the first bracing frame, wherein, first Power Component is connected with the first sliding rail by the first flange apparatus, its turning axle is connected on the first slide block by the first guide chain, first skid is supported on the first sliding rail, and is connected with the vertical fixing plate on stuck-module.
7. elongated standpipe dynamic response device is measured in simulated sea bottom pipeclay according to claim 1 and horizontal forced oscillation, it is characterized in that, the husky plate module in described bottom comprises: become husky plate panel, plate mended by panel, panel contiguous block, second contiguous block, bottom trapped orbit, second bracing frame, the bottom wherein becoming husky plate panel is connected on the bottom fixed board in bottom boundary module, panel is mended plate and is welded at little the false end, and be connected with two pieces of panel contiguous blocks, the second contiguous block that panel contiguous block and panel are mended on plate is affixed, panel is mended plate and is welded on the trapped orbit of bottom, bottom trapped orbit is welded on the second bracing frame.
8. elongated standpipe dynamic response device is measured in simulated sea bottom pipeclay according to claim 1 and horizontal forced oscillation, it is characterized in that, described Measurement and analysis control module comprises: data collection processor, motion controller and display, wherein: three component instrument in the input end of data collection processor and described top boundary module and the single component instrument in bottom boundary module, and Fibre Optical Sensor is connected, its output terminal is connected with display; Motion controller comprises motion control output window and image display port, and motion control output window and described top slide module, being connected of the husky plate module in bottom, image display port is connected with display.
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| CN108138562A (en) * | 2015-10-09 | 2018-06-08 | 通用电气公司 | For estimating the system of fatigue damage |
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