CN102410918B - Vortex-induced vibration simulation test device for deep sea riser model with movable top end under uniform flow - Google Patents
Vortex-induced vibration simulation test device for deep sea riser model with movable top end under uniform flow Download PDFInfo
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Abstract
The invention provides a vortex-induced vibration rotary test device for an oblique riser with movable top under shear flow. The test device comprises a deep sea riser module, a top support module, a bottom support module, two vertical track modules, a horizontal track module, four motor modules, four fairing modules and a measurement analysis control module, wherein the two vertical track modules are connected with the bottom of the horizontal track module, the top support module and the bottom support module respectively; the horizontal track module is connected with the tops of the two vertical track modules; the two ends of the deep sea riser module are connected with the top support module and the bottom support module respectively; and the measurement analysis control module is connected with the deep sea riser module, the top support module and the bottom support module. According to the test device, vortex-induced vibration of a large-sized riser model under the influence of a sea platform can be simulated by fully utilizing the vertical track modules and the horizontal track module; and the test device is very convenient to install and detach.
Description
Technical field
The present invention relates to the device of field of ocean engineering, relate to a kind of movable deep-sea, top riser model vortex-induced vibration simulation test device that evenly flows down particularly.
Background technology
According to fluid mechanics knowledge, the column structure thing is placed in the middle of the incoming flow of certain speed, the whirlpool can take place alternately to rush down in its both sides.Be associated with generation and the bleed off of whirlpool, cylinder can be subjected to laterally and the fluctuation pressure that flows to.If this moment, cylinder was resiliency supported, pulsating fluid power can cause the vibration of cylinder so, and the vibration of cylinder can change its wake structure again conversely.The interactional problem of this fluidic structures thing is called vortex-induced vibration.Because the marine oil and gas exploitation advances to deep water, the standpipe in the deepwater environment can be considered the elongated flexible structure, and the small deformation theory is no longer suitable, and this makes that the vortex-induced vibration problem of standpipe is more outstanding.For example under the effect of ocean current or ocean platform motion, be suspended on the flexible pipes such as floating drum, mooring hawser of marine ocean platform standpipe, towing cable, subsea pipeline, spar platform and the vortex-induced vibration phenomenon can occur, will cause the fatigure failure of flexible pipe.
So far, be exactly model test method to one of most important method of research of flexible pipe vortex-induced vibration phenomenon.Can deepen the motion of compliant riser vortex-induced vibration mechanism and the ocean platform understanding to the influence of the vortex-induced vibration of standpipe by model test method, and reliable riser vortex excited vibration forecast approach and technology are provided.
Through the retrieval of prior art document is found present vortex vibration testing device generally carries out in towing oceanographic engineering swimmer's pool, what have carries out in annular water tank, and what have drags standpipe with towboat and carry out the vortex-induced vibration test.Paper " Laboratory Investigation of Long Riser VIV Response " in the 14th international coastal waters and polar region engineering conference " Proceedings of the Fourteen (2004) International Offshore and Polar Engineering Conference " (experimental study of long riser vortex excited vibration response) is about flexible pipe vortex-induced vibration experimental study, mentioned a kind of flexible pipe vortex-induced vibration model test technology in the literary composition, compliant riser is horizontally placed in the towing basin, and trailer drags riser model and produces uniform flow field.With the motion that the acceleration transducer that is arranged in riser interiors is measured standpipe, in the standpipe wall, arrange the dependent variable in the grating measuring standpipe wall.By analysis, the weak point of this experimental technique is: 1, generally can only simulate the vortex-induced vibration of small scale pipe fitting, scale effect is difficult to avoid; 2, limited by oceanographic engineering pond trailer speed, the vortex-induced vibration that is difficult to effectively carry out under the real Reynolds number is tested.3, pulled the restriction of oceanographic engineering swimmer's pool length, resulting test section distance is less, and the test figure that records is less.4, can not carry out the forced oscillation test.5, can not simulate the motion of riser top platform, thereby the motion of research platform is to the influence of standpipe vortex-induced vibration.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of movable deep-sea, top riser model vortex-induced vibration simulation test device that evenly flows down is provided, the present invention utilizes the incoming flow of the relative motion simulation different in flow rate of vertical track and horizontal rail and trailer and towing basin, thereby is implemented in simulation deep-sea riser vortex excited vibration under the laboratory environment.Test duration of the present invention long and can test flow velocity high be horizontally placed on deep-sea riser model in the towing basin, also can carry out the reciprocating vibration test of deep-sea riser model.
The invention provides the movable tilting riser vortex excited vibration rotary test device in a kind of shear flow next top, comprise a deep-sea standpipe module, the top braces module, the bottom support module, two vertical track modules, the horizontal rail module, four motor modules, four radome fairing modules, and Measurement and analysis control module, wherein, two described vertical track modules respectively with the bottom of described horizontal rail module, the top braces module, and the bottom support module connects, described horizontal rail module is connected with the top of two described vertical track modules, the two ends of described deep-sea standpipe module are connected with described bottom support module with described top braces module respectively, described vertical track module comprises slide block, the radome fairing side plate of four described radome fairing modules passes and is fixed in the outside of two described vertical track modules respectively, two described radome fairing modules are arranged on each described vertical track module, described Measurement and analysis control module by lead respectively with described deep-sea standpipe module, the top braces module, the bottom support module, and four motor modules connect, four described motor modules are divided into two groups, two described motor modules wherein are installed in the motion of controlling two described vertical track modules on the described horizontal rail module, remaining two described motor modules are installed in respectively on the top of two described vertical track modules and control the motion of two slide blocks on the described vertical track module, thereby control described top braces module and bottom support block motion.
At this moment according to the motion state of top braces module, bottom support module and two vertical track modules, the problem of research can be divided into following a few class:
1) when top supporting module and bottom support module are fixed on the vertical track module, do not allow it along the vertical track block motion, and do not allow two vertical track modules along the horizontal rail block motion, allow trailer drive whole model sport, can study standpipe at the vortex-induced vibration that is not subjected under the ocean platform motion effects.
2) when two vertical track modules are fixed, allow top braces module and bottom support module along vertical track module separately synchronous do to-and-fro movement on the vertical direction, and trailer is motionless, just can study the forced vibration of deep-sea standpipe.
3) when allowing top hold mode piece do to-and-fro movement on the vertical direction along the vertical track module, do not allow the motion of bottom support module and two vertical track modules and trailer, just can study the only vortex-induced vibration under the effect that ocean platform moves of standpipe.
4) when allowing the top braces module do to-and-fro movement on the vertical direction along the vertical track module, do not allow bottom support module and two vertical track block motion, allow trailer drive whole model sport, just can study standpipe under flowing to perpendicular to the incoming flow effect of ocean platform direction of motion and the vortex-induced vibration under the influence of ocean platform motion.
5) when not allowing top braces module and bottom support module along the vertical track block motion, the vertical track module that transference top braces module links to each other is done to-and-fro movement on the horizontal direction along the horizontal rail module, fix another vertical track module, allow trailer drive whole model sport, just can study under standpipe is parallel to ocean platform direction of motion in the flow direction the incoming flow effect and the influence of ocean platform motion under vortex-induced vibration.
6) when allowing the top braces module do to-and-fro movement on the vertical direction along the vertical track module that is attached thereto, the vertical track module that links to each other with the top braces module is done to-and-fro movement on the horizontal direction along the horizontal rail module, and adjust their movement velocity, the vertical track block motion that does not allow the bottom support module and be attached thereto, allow trailer drive whole model sport, just can study standpipe under the motion effects of the various directions of ocean platform incoming flow to its vortex-induced vibration that causes.
Preferably, described deep-sea standpipe module comprises fiber-optic grating sensor, two standpipe fixture splices and riser model, wherein, described fiber-optic grating sensor is axially evenly arranged along described riser model surface, described riser model two ends are connected with two described standpipe fixture splices respectively, two described standpipe fixture splices are connected with described bottom support module with described top portion supporting module respectively, and described fiber-optic grating sensor is connected with described Measurement and analysis control module.
Preferably, described deep-sea its linear mass of riser model is 1:1 with the ratio that its unit length arranges the quality of water.
Preferably, described top braces module comprises top link, horizontal seat, back up pad and the first rotation sensing arrangement, wherein, one end of described top link is connected with slide block on the described vertical track module, the other end is connected with described horizontal seat, described back up pad is rotated sensing arrangement with described horizontal seat and first respectively and is linked to each other, described first rotates sensing arrangement is connected with described deep-sea standpipe module and Measurement and analysis control module respectively, an end of the fixing described deep-sea of described top braces module standpipe module.
Preferably, described first rotates sensing arrangement comprises first sensor and first universal joint, wherein, described first sensor is connected with described back up pad, first universal joint and Measurement and analysis control module respectively, and described first universal joint is connected with described deep-sea standpipe module.
Preferably, described bottom support module comprises the bottom link, the support mount pad, the Elastic Sliding assembly, linear bearing, and second rotate sensing arrangement, wherein, one end of described bottom link is connected with slide block on another described vertical track module, the other end is connected with described support mount pad, described support mount pad is connected with described linear bearing, described Elastic Sliding assembly passes described support mount pad and is connected with the described second rotation sensing arrangement, described second rotates sensing arrangement is connected with described deep-sea standpipe module and Measurement and analysis control module respectively, described bottom support module is used for the other end of described fixedly deep-sea standpipe module, and buffer action is provided when vortex-induced vibration is taken place the standpipe module of deep-sea described in the process of the test 1.
Preferably, described Elastic Sliding assembly comprises front end panel, sliding axle, buffer spring, and rear bearing sheet, wherein, described buffer spring is enclosed within described sliding axle outside and is connected with described linear bearing with described rear bearing sheet respectively, described front end panel, sliding axle, rear bearing sheet is connected in series successively, described second rotates sensing arrangement comprises second sensor and second universal joint, wherein, described second sensor respectively with described Elastic Sliding assembly, second universal joint and Measurement and analysis control module connect, and described second universal joint is connected with described deep-sea standpipe module.
Preferably, described vertical track module comprises vertical track, and top contiguous block, described vertical track is perpendicular to described horizontal rail module, described vertical track links to each other by the base slider of described top slide with described horizontal rail module, do to-and-fro movement on the horizontal direction in described horizontal rail module, described slide block is installed on the described vertical track, and link to each other with the top link of described top braces module and the bottom link of described bottom support module respectively, thereby described vertical track module and described top supporting module and described bottom module are coupled together, two described radome fairing modules are arranged in a side of described vertical track symmetrically, described vertical track module is that described deep-sea standpipe module provides a supporting role, described deep-sea riser model module is done the to-and-fro movement on the vertical direction under the effect of described vertical track module, described horizontal rail module comprises hook, brace summer, horizontal rail, and base slider, described horizontal rail is perpendicular to described vertical track, described horizontal rail connects described hook, described horizontal rail links to each other with the top contiguous block of described vertical track module by described base slider, described deep-sea standpipe module is done the to-and-fro movement of horizontal direction under the effect of described horizontal rail module, described brace summer couples together two described horizontal rail.
Preferably, described radome fairing module comprises fixedly connected radome fairing shell and radome fairing side plate, wherein, described radome fairing shell is connected with described radome fairing side plate, four described radome fairing side plates are connected with the outside surface of two described vertical tracks respectively, the described radome fairing module of two symmetric arrangement is installed on each described vertical track, and described radome fairing shell 39 is the airfoil type section.
Preferably, described Measurement and analysis control module comprises the fiber data collecting unit, force data collecting unit and motor control unit, wherein, described fiber data collecting unit is connected with described deep-sea standpipe module respectively, described force data collecting unit is connected with the bottom support module with described top braces module respectively, described motor control unit is connected with four described motor modules, described fiber data collecting unit, force data collecting unit and motor control unit are independent separately, described fiber data collecting unit and force data collecting unit are used for the strain of riser model described in record and the analytical test and stressed, described motor control unit is used for four described motors of control, thereby controls two described vertical track modules, top braces module and the motion separately of bottom support module.
The present invention can install the large scale riser model, thereby the scale effect of avoiding, the present invention can take full advantage of the vertical track module and the horizontal rail module is simulated the vortex-induced vibration of large scale riser model under the influence of ocean platform, the present invention adopts modular design, mounts and dismounts all very convenient.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the oblique view of embodiment 1;
Fig. 3 is the vertical track module of embodiment 1 and the connection diagram of horizontal rail module;
Fig. 4 is the deep-sea standpipe module diagram of embodiment 1;
Fig. 5 is the top braces module side view of embodiment 1;
Fig. 6 is the bottom support module side view of embodiment 1;
Fig. 7 is the bottom support module upward view of embodiment 1;
Fig. 8 is the vertical track module diagram of embodiment 1;
Fig. 9 is the horizontal rail module diagram of embodiment 1;
Figure 10 is the radome fairing module diagram of embodiment 1;
Figure 11 is the afterburning module diagram of embodiment 1;
Figure 12 is the Measurement and analysis control module system chart of embodiment 1.
Embodiment
Provide detailed description and the embodiment of the embodiment of the invention below in conjunction with accompanying drawing: each embodiment is that prerequisite is implemented with technical scheme of the present invention, provide detailed embodiment and process, but protection scope of the present invention is not limited to following examples.
Embodiment 1
In the present embodiment, comprise a deep-sea standpipe module 1, top braces module 2, bottom support module 3, two vertical track modules 4, horizontal rail module 5, four motor modules 6, four radome fairing modules 7 and Measurement and analysis control module 9 according to the movable tilting riser vortex excited vibration rotary test device in described shear flow provided by the invention next top.Wherein, two described vertical track modules 4 respectively with the bottom of described horizontal rail module 5, top braces module 2, and bottom support module 3 connects, described horizontal rail module 5 is connected with the bottom of trailer 10 opposite sides and the top of two described vertical track modules 4 respectively, the two ends of described deep-sea standpipe module 1 are connected with described bottom support module 3 with described top braces module 2 respectively, the radome fairing side plate 39 of four described radome fairing modules 7 passes and is fixed in the outside of two described vertical track modules 4 respectively, two described radome fairing modules 7 are arranged on each described vertical track module 4, described Measurement and analysis control module 9 is arranged on the trailer 10, described Measurement and analysis control module 9 by lead respectively with described deep-sea standpipe module 1, top braces module 2, bottom support module 3, and four motor modules 6 connect, four described motor modules 6 are divided into two groups, two described motor modules 6 wherein are installed in the motion of controlling two described vertical track modules 4 on the described horizontal rail module 5, remaining two described motor modules 6 are installed in respectively on the top of two described vertical track modules 4 and control the motion of two described slide blocks 34 on the described vertical track module 4, thereby control described top braces module 2 and 3 motions of bottom support module.
Described deep-sea standpipe module 1 comprises fiber-optic grating sensor 13, two standpipe fixture splices 14 and riser model 15, wherein, described fiber-optic grating sensor 13 is axially evenly arranged along described riser model 15 surfaces, described riser model 15 two ends are connected with two described standpipe fixture splices 14 respectively, two described standpipe fixture splices 14 are connected with described bottom support module 3 with described top portion supporting module 2 respectively, and described fiber-optic grating sensor 13 is connected with described Measurement and analysis control module 9.The standpipe that described deep-sea standpipe module 1 is used for simulating in the actual ocean.
Riser model 15 its linear mass in described deep-sea are 1:1 with the ratio that its unit length arranges the quality of water.
Described top braces module 2 comprises top link 16, horizontal seat 17, back up pad 18 and the first rotation sensing arrangement 19, wherein, one end of described top link 16 is connected with slide block 34 on the described vertical track module 4, the other end is connected with described horizontal seat 17, and described back up pad 18 is rotated sensing arrangement 19 with described horizontal seat 17 and first respectively and linked to each other.Described first rotates sensing arrangement 19 is connected with described deep-sea standpipe module 1 and Measurement and analysis control module 9 respectively.Described top braces module 2 is used for fixing an end of deep-sea standpipe module 1.
Described first rotates sensing arrangement 19 comprises first sensor 21 and first universal joint 20, wherein, described first sensor 21 is connected with described back up pad 18, first universal joint 20 and Measurement and analysis control module 9 respectively, and described first universal joint 20 is connected with described deep-sea standpipe module 1.
Described bottom support module 3 comprises bottom link 24, support mount pad 25, Elastic Sliding assembly 22, linear bearing 26, and second rotate sensing arrangement 23, wherein, one end of described bottom link 24 is connected with slide block 34 on another described vertical track module 4, the other end is connected with described support mount pad 25, described support mount pad 25 is connected with described linear bearing 26, described Elastic Sliding assembly 22 passes described support mount pad 25 and is connected with the described second rotation sensing arrangement 23, and described second rotates sensing arrangement 23 is connected with described deep-sea standpipe module 1 and Measurement and analysis control module 9 respectively.Described bottom support module 3 is used for the other end of described fixedly deep-sea standpipe module 1, and buffer action is provided when vortex-induced vibration is taken place process of the test mesopelagic (200 standpipe module 1.
Described Elastic Sliding assembly 22 comprises front end panel 27, sliding axle 28, buffer spring 29 and rear bearing sheet 30, wherein, described buffer spring 29 is enclosed within described sliding axle 28 outsides and is connected with described linear bearing 26 with described rear bearing sheet 30 respectively, and described front end panel 27, sliding axle 28, rear bearing sheet 30 are connected in series successively.
Described second rotates sensing arrangement 23 comprises second sensor 31 and second universal joint 32, wherein, described second sensor 31 is connected with described Elastic Sliding assembly 21, second universal joint 32 and Measurement and analysis control module 9 respectively, and described second universal joint 32 is connected with described deep-sea standpipe module 1.
Described vertical track module 4 comprises vertical track 33, slide block 34 and top contiguous block 12, described vertical track 33 perpendicular to described horizontal rail module 5 and towing basin 11 ponds at the bottom of.Described vertical track 33 links to each other with the base slider 37 of described horizontal rail module 5 by described top slide 12, can do to-and-fro movement on the horizontal direction in described horizontal rail module 5, described slide block 34 is installed on the described vertical track 33, and link to each other with the top link 16 of described top braces module 2 and the bottom link 24 of described bottom support module 3 respectively, thereby described vertical track module 4 and described top supporting module 2 and described bottom module 3 are coupled together a side that is arranged in described vertical track 33 of two described radome fairing module 7 symmetries.Described vertical track module 4 provides a supporting role for described deep-sea standpipe module 1.Described deep-sea riser model module 1 can be done the to-and-fro movement on the vertical direction under the effect of described vertical track module 4.
Described horizontal rail module 5 comprises hook 8, brace summer 35, horizontal rail 36 and base slider 37, and described horizontal rail 36 is parallel at the bottom of 11 ponds, pond perpendicular to described vertical track 33.Described horizontal rail 36 links to each other with the bottom of trailer 10 by described hook 8 and links to each other with the top contiguous block 12 of described vertical track module 4 by described base slider 37.Described deep-sea standpipe module 1 can be done the to-and-fro movement of horizontal direction under the effect of described horizontal rail module 5.The effect of described brace summer 35 is that two described horizontal rail 36 are coupled together.
Described radome fairing module 7 comprises fixedly connected radome fairing shell 39 and radome fairing side plate 40, and wherein, described radome fairing shell 39 is connected with described radome fairing side plate 40, and four described radome fairing side plates 40 are connected with the outside surface of two described vertical tracks 33 respectively.Two described radome fairing modules 7, the two symmetric arrangement are installed on each described vertical track 33.Described radome fairing shell 39 is the airfoil type section, and this structure can reduce resistance and the wave making in the whole test device motion process greatly.
As shown in figure 11, described four motor modules 6 are existing testing equipment.Four described motor modules 6 are divided into two groups, two described motor modules 6 wherein are installed in the motion of controlling two described vertical track modules 4 on the described horizontal rail module 5, the motion of two slide blocks 34 on the described vertical track module 4 is controlled at the top that remaining two described motor modules 6 are installed in two described vertical track modules 4 respectively, thereby controls described top braces module 2 and 3 motions of described bottom support module.
Described Measurement and analysis control module 9 comprises fiber data collecting unit 41, force data collecting unit 42 and motor control unit 43, wherein, described fiber data collecting unit 41 is connected with described deep-sea standpipe module 1 respectively, described force data collecting unit 42 is connected with bottom support module 3 with described top braces module 2 respectively, described motor control unit 43 is connected with four described motor modules 6, described fiber data collecting unit 41, force data collecting unit 42 and motor control unit 43 are independent separately, all are positioned on the trailer 10.
Described fiber data collecting unit 41 and force data collecting unit 42 contain real-time collection analysis software, can record and the strain of riser model described in the analytical test 1 and stressed.Described motor control unit 43 can be controlled four described motors 6, thereby controls two described vertical track modules 4, top braces module 2 and bottom support module 3 motion separately.
As shown in Figure 1, described trailer 10 and towing basin 11 are existing test facilities, trailer 10 can be realized the linear uniform motion under the two-way friction speed, the water of towing basin 11 dress certain depths, for sea risers model 15 provides water environment, the two relative motion can be simulated the equal uniform flow of different in flow rate.
According to described device provided by the invention following advantage is arranged: 1, described device can be installed large scale riser model 15, thus the scale effect of avoiding; 2, the described device high speed that can take full advantage of trailer 10 is simulated large scale riser model 15 real Reynolds number vortex-induced vibrations.3, described device can take full advantage of the length of towing basin 11, long distance test, the longer more stable test figure of acquisition.4, described device can utilize vertical track module and horizontal rail module to carry out the forced oscillation test of standpipe.5, described device can utilize the motion of vertical track module and horizontal rail module to simulate the motion of ocean platform, thereby the motion of research ocean platform is to the influence of standpipe vortex-induced vibration.6, described device adopts modular design, mounts and dismounts all very convenient.
Claims (10)
1. one kind evenly flows down movable deep-sea, top riser model vortex-induced vibration simulation test device, it is characterized in that, comprise a deep-sea standpipe module, the top braces module, the bottom support module, two vertical track modules, the horizontal rail module, four motor modules, four radome fairing modules, and Measurement and analysis control module, wherein, the bottom of a described vertical track module and described horizontal rail module, the top braces module connects, and another described vertical track module is connected with described bottom support module, described horizontal rail module is connected with the top of two described vertical track modules, the two ends of described deep-sea standpipe module are connected with described bottom support module with described top braces module respectively, described vertical track module comprises slide block, the radome fairing side plate of four described radome fairing modules passes and is fixed in the outside of two described vertical track modules respectively, two described radome fairing modules are arranged on each described vertical track module, described Measurement and analysis control module by lead respectively with described deep-sea standpipe module, the top braces module, the bottom support module, and four motor modules connect, four described motor modules are divided into two groups, two described motor modules wherein are installed in the motion of controlling two described vertical track modules on the described horizontal rail module, remaining two described motor modules are installed in respectively on the top of two described vertical track modules and control the motion of two slide blocks on the described vertical track module, thereby control described top braces module and bottom support block motion.
2. movable deep-sea, the top riser model vortex-induced vibration simulation test device that evenly flows down according to claim 1, it is characterized in that, described deep-sea standpipe module comprises fiber-optic grating sensor, two standpipe fixture splices, and riser model, wherein, described fiber-optic grating sensor is axially evenly arranged along described riser model surface, described riser model two ends are connected with two described standpipe fixture splices respectively, two described standpipe fixture splices are connected with described bottom support module with described top braces module respectively, and described fiber-optic grating sensor is connected with described Measurement and analysis control module.
3. movable deep-sea, the top riser model vortex-induced vibration simulation test device that evenly flows down according to claim 1 and 2 is characterized in that, described deep-sea its linear mass of riser model is 1:1 with the ratio that its unit length arranges the quality of water.
4. movable deep-sea, the top riser model vortex-induced vibration simulation test device that evenly flows down according to claim 1, it is characterized in that, described top braces module comprises the top link, horizontal seat, back up pad, and first rotate sensing arrangement, wherein, one end of described top link is connected with slide block on the described vertical track module, the other end is connected with described horizontal seat, described back up pad is rotated sensing arrangement with described horizontal seat and first respectively and is linked to each other, described first rotates sensing arrangement is connected with described deep-sea standpipe module and Measurement and analysis control module respectively, an end of the fixing described deep-sea of described top braces module standpipe module.
5. movable deep-sea, the top riser model vortex-induced vibration simulation test device that evenly flows down according to claim 4, it is characterized in that, described first rotates sensing arrangement comprises first sensor and first universal joint, wherein, described first sensor is connected with described back up pad, first universal joint and Measurement and analysis control module respectively, and described first universal joint is connected with described deep-sea standpipe module.
6. movable deep-sea, the top riser model vortex-induced vibration simulation test device that evenly flows down according to claim 5, it is characterized in that, described bottom support module comprises the bottom link, the support mount pad, the Elastic Sliding assembly, linear bearing, and second rotate sensing arrangement, wherein, one end of described bottom link is connected with slide block on another described vertical track module, the other end is connected with described support mount pad, described support mount pad is connected with described linear bearing, described Elastic Sliding assembly passes described support mount pad and is connected with the described second rotation sensing arrangement, described second rotates sensing arrangement is connected with described deep-sea standpipe module and Measurement and analysis control module respectively, described bottom support module is used for the other end of described deep-sea standpipe module, and buffer action is provided when vortex-induced vibration is taken place the standpipe module of deep-sea described in the process of the test 1.
7. movable deep-sea, the top riser model vortex-induced vibration simulation test device that evenly flows down according to claim 6, it is characterized in that, described Elastic Sliding assembly comprises front end panel, sliding axle, buffer spring, and rear bearing sheet, wherein, described buffer spring is enclosed within described sliding axle outside and is connected with described linear bearing with described rear bearing sheet respectively, described front end panel, sliding axle, rear bearing sheet is connected in series successively, described second rotates sensing arrangement comprises second sensor and second universal joint, wherein, described second sensor respectively with described Elastic Sliding assembly, second universal joint and Measurement and analysis control module connect, and described second universal joint is connected with described deep-sea standpipe module.
8. movable deep-sea, the top riser model vortex-induced vibration simulation test device that evenly flows down according to claim 1, it is characterized in that, described vertical track module comprises vertical track, and top contiguous block, described vertical track is perpendicular to described horizontal rail module, described vertical track links to each other with the base slider of described horizontal rail module by described slide block (34), do to-and-fro movement on the horizontal direction in described horizontal rail module, described slide block (34) is installed on the described vertical track, and link to each other with the top link of described top braces module and the bottom link of described bottom support module respectively, thereby described vertical track module and described top supporting module and described bottom module are coupled together, two described radome fairing modules are arranged in a side of described vertical track symmetrically, described vertical track module is that described deep-sea standpipe module provides a supporting role, described deep-sea riser model module is done the to-and-fro movement on the vertical direction under the effect of described vertical track module, described horizontal rail module comprises hook, brace summer, horizontal rail, and base slider, described horizontal rail is perpendicular to described vertical track, described horizontal rail connects described hook, described horizontal rail links to each other with the top contiguous block of described vertical track module by described base slider, described deep-sea standpipe module is done the to-and-fro movement of horizontal direction under the effect of described horizontal rail module, described brace summer couples together two described horizontal rail.
9. movable deep-sea, the top riser model vortex-induced vibration simulation test device that evenly flows down according to claim 8, it is characterized in that, described radome fairing module comprises fixedly connected radome fairing shell and radome fairing side plate, wherein, described radome fairing shell is connected with described radome fairing side plate, four described radome fairing side plates are connected with the outside surface of two described vertical tracks respectively, the described radome fairing module of two symmetric arrangement is installed on each described vertical track, and described radome fairing shell is the airfoil type section.
10. according to claim 1,2, perhaps each described movable deep-sea, top riser model vortex-induced vibration simulation test device that evenly flows down in 4 to 9, it is characterized in that, described Measurement and analysis control module comprises the fiber data collecting unit, force data collecting unit and motor control unit, wherein, described fiber data collecting unit is connected with described deep-sea standpipe module respectively, described force data collecting unit is connected with the bottom support module with described top braces module respectively, described motor control unit is connected with four described motor modules, described fiber data collecting unit, force data collecting unit and motor control unit are independent separately, described fiber data collecting unit and force data collecting unit are used for the strain of riser model described in record and the analytical test and stressed, described motor control unit is used for four described motors of control, thereby controls two described vertical track modules, top braces module and the motion separately of bottom support module.
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| CN102313636B (en) * | 2011-08-02 | 2013-06-19 | 上海交通大学 | Vortex-induced vibration simulation test device for deep sea riser model with movable top end under action of step flow |
| CN104458172B (en) * | 2014-11-25 | 2017-06-13 | 上海交通大学 | A kind of uniform flow measures elongated standpipe dynamic response test device |
| CN104458174B (en) * | 2014-11-28 | 2017-06-13 | 上海交通大学 | Uniform flow measures elongated standpipe dynamic response device outside a kind of face |
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