CN206945431U - A kind of new ocean compliance umbilical stretching, compression and bending combined experimental device - Google Patents
A kind of new ocean compliance umbilical stretching, compression and bending combined experimental device Download PDFInfo
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- CN206945431U CN206945431U CN201720884295.2U CN201720884295U CN206945431U CN 206945431 U CN206945431 U CN 206945431U CN 201720884295 U CN201720884295 U CN 201720884295U CN 206945431 U CN206945431 U CN 206945431U
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Abstract
The utility model discloses a kind of new ocean compliance umbilical stretching, compression and bending combined experimental device, including base and along the adjustable fixed dolly and moving cart arranged in a straight line on the base；The lower end of the adjustable fixed dolly is connected by toothed track with the base, and the sawtooth of the toothed track extends perpendicularly to the straight line, and the lower end of the adjustable fixed dolly has the flank of tooth to match with the toothed track；The lower end both sides of the moving cart are respectively equipped with multiple wheels, and the wheel is slidably connected by horizontal concrete chute and the base, the bearing of trend of the horizontal concrete chute and the straight line parallel.The utility model Nover practical, it is power resources to only rely on hydraulic cylinder, you can realizes kinds of experiments mode.Moreover, it can effectively control the application of respective load.Meanwhile any conversion of loading sequence can be realized according to engineering and design requirement.
Description
Technical field
The utility model is related to a kind of new can realize stretching, compression and bending group to large-scale elongated umbilical shape test specimen
The Mechanics Performance Testing device of loading is closed, specifically a kind of new ocean compliance umbilical stretching, compression and bending group
Close experimental provision.
Background technology
China's Marine oil and gas resource rich reserves, and most of it is distributed in the deep water sea areas such as the South Sea.And extra large cable, umbilical cables with
And flexible duct etc. is one of equipment indispensable in deep-sea oil gas exploitation.This kind of equipment can be collectively referred to as ocean compliance pipe
Cable, its structure are generally made up of corresponding building blocks of function and stiffener such as armouring wire etc..For different engineering demands, choosing
With the umbilical of corresponding function；Extra large cable is mainly responsible for seabed production equipment and provides electric energy, and umbilical cables are connected to water floating body and sea
Between the equipment of bottom, provide electric power, signal transmission etc. for seabed manifold and realize remote control, flexible duct is mainly responsible between equipment
Oil-gas transportation.Ocean flexible pipe cable is in installation or operating mode in place, it will usually is stretched bending combined load.Due to soft
Pliable umbilical itself is complicated spiral winding structure, and the mutual friction behavior between bending load lower member is by obvious under tension
The influence of size, the mechanical behavior of its umbilical will be extremely complex.Simultaneously as the effect of stormy waves stream, and platform is in Complex Sea
Reciprocating motion under foreign environment, the behavior of alternating bending will be presented in the umbilical for being connected to floating body, and then produces fatigue damage, causes
Fatigue rupture.Fatigue directly concerns the service life of umbilical, moreover, the service life of umbilical is major manufacturer and design machine
One of most concerned performance parameter of structure, therefore, the research of umbilical fatigue problem are very important important in umbilical design cycle
Link.In addition, the flexible pipe cable run in place bears obvious compression load at touchdown point, armouring easily occurs when serious and bends
Song failure, bigger difficulty is brought to repair.In summary, stretch, compression and bending are that ocean compliance umbilical is held
The typical duty load received.
In view of the above-mentioned problems, theoretical and numerical method is often difficult to umbilical agenda under the accurate description combined load.
Therefore, in order to study the above-mentioned mechanical behavior of umbilical in detail, and the structural response after fatigue failure mechanism and failure is, it is necessary to logical
Overtesting method to carry out independent load or combined load simulated experiment to ocean flexible pipe cable danger section.And then pass through experiment
To optimize the design of structure, reduce the probability destroyed during umbilical use and ensure whole umbilical service life.Flexible pipe cable
Combined load test is the important test to pipe applications situation, because the research of domestic flexible pipe cable is still in starting state,
Without the experiment experience under related pure bending and combined load, need a set of complete experimental provision badly and umbilical is tested and tested
Card.
Utility model content
According to technical problem set forth above, and provide a kind of new ocean compliance umbilical stretching, compression and bending
Combined experimental device.The mechanical behavior feature and fatigue failure mechanism of umbilical can be studied by the utility model, so as to
The experiment key technology of dynamic standpipe cable is grasped comprehensively, while can be to the correlation performance parameters (rigidity, intensity and fatigue) of umbilical
Optimize design.
According to actual condition, using the equivalent method of load, umbilical is carried out repeatedly in the range of certain bending radius curved
Song, and stretching and compression combined load.Therefore testing equipment needs to bring it about comprising stretching, compression device and application moment of flexure
The equipment of oscillation cycle flexural deformation.In addition, experimentation need configure measuring apparatus, such as foil gauge or sensor with
Just umbilical deformation process relevant parameter index (middle or direct physical quantity) is extracted.Experiment flow is generally as follows：Sampling,
Fixation, pieces of cloth, loading, measurement and post processing mode expansion.Experiment will formulate corresponding testing scheme and to umbilical sample before starting
Chosen, then umbilical to be tested is fixed on test stand, foil gauge cloth is carried out in test position according to requirement of experiment
Put, and be coupled with data acquisition equipment.Ensure the errorless rear start-up loading equipment of aforesaid operations, while gather dependency number in real time
According to.Finally, the data obtained is analyzed and processed and forms perfect laboratory report.
The technological means that the utility model uses is as follows：
A kind of new ocean compliance umbilical stretching, compression and bending combined experimental device, including base and along straight
Line is arranged in adjustable fixed dolly and moving cart on the base；
The lower end of the adjustable fixed dolly is connected by toothed track with the base, and the sawtooth of the toothed track prolongs
Direction is stretched perpendicular to the straight line, and the lower end of the adjustable fixed dolly has the flank of tooth to match with the toothed track, institute
State adjustable fixed dolly and be provided with two the first supporting plates and the first slideway parallel to each other, first slideway is located at two institutes
Between stating the first supporting plate, for first slideway along the linear extension, first slideway is provided with the first rack, it is described can
Adjust and the first hydraulic cylinder for promoting first rack to be slided along first slideway is additionally provided with fixed dolly, two described first
It is provided with the first cylindrical bending apparatus between the upper end of supporting plate, the both ends of the first cylindrical bending apparatus have the respectively
One connecting flange faces, the both sides side wall of the first cylindrical bending apparatus are revolved by the first rotary shaft and first supporting plate
Turn connection, the downside side wall of the first cylindrical bending apparatus is fixed with the first sector gear, first sector gear
The engagement of sawtooth and first rack；
The lower end both sides of the moving cart are respectively equipped with multiple wheels, and the wheel is slided by horizontal concrete chute and the base
Connection, the bearing of trend of the horizontal concrete chute and the straight line parallel, the moving cart are provided with two parallel to each other the
Two supporting plates and the second slideway, second slideway is between two second supporting plates, and second slideway is described in
Linear extension, second slideway are provided with the second rack, are additionally provided with the moving cart and promote second rack along institute
The second hydraulic cylinder of the second slideway slip is stated, the second cylinder bending dress is provided between the upper end of two second supporting plates
Put, the both ends of the second cylindrical bending apparatus have the second connecting flange faces, the second cylindrical bending apparatus respectively
Both sides side wall be rotatably connected by the second rotary shaft with second supporting plate, the downside of the second cylindrical bending apparatus
Side wall is fixed with the second sector gear, the engagement of the sawtooth of second sector gear and second rack；
Axis of the axis of the first cylindrical bending apparatus perpendicular to first rotary shaft；
Axis of the axis of the second cylindrical bending apparatus perpendicular to second rotary shaft；
Intersection point and second circle of the axis of the first cylindrical bending apparatus with the axis of first rotary shaft
The intersection point of the axis of cylindrical bending device and the axis of second rotary shaft is located in the same horizontal plane, i.e., highly consistent, is made
After relative the first connecting flange faces and the second connecting flange faces be connecteds with the both ends of umbilical respectively, umbilical can be in horizontal；
It is additionally provided with the 3rd hydraulic cylinder for promoting the moving cart to be slided along the horizontal concrete chute on the base, described the
The one end of three hydraulic cylinders away from the moving cart is connected by fixed wall with the base.
The base includes being provided with the toothed track, the horizontal concrete chute, the 3rd hydraulic cylinder and the fixed wall
Above plate and lower panel, truss is provided between the top panel and the lower panel.
The axial location of the first cylindrical bending apparatus and the second cylindrical bending apparatus is equipped with center and led to
Hole, the described one end of first cylindrical bending apparatus away from the described second cylindrical bending apparatus are provided with first flange, and described
The one end of two cylindrical bending apparatus away from the described first cylindrical bending apparatus is provided with second flange
During work, the first relative connecting flange faces and the second connecting flange faces are connected with the both ends of umbilical respectively；
3rd hydraulic cylinder drives the moving cart to be moved horizontally on the horizontal concrete chute, so make umbilical by
To stretching action；The first hydraulic cylinder and the second hydraulic cylinder drive first sector gear and described the simultaneously respectively
Two sector gear opposite direction rotatings rotate round about, so that umbilical is by flecition, now, the vertical position in umbilical both ends
Shifting is zero；
To adapt to the umbilical of different length, the adjustable fixed dolly realizes position adjustments by the toothed track；Institute
Stating can prevent contact surface from getting rusty between the lower end flank of tooth of adjustable fixed dolly and the toothed track with coating butter；
When carrying out crooked experiment, make the first hydraulic cylinder and the second hydraulic cylinder synchronously apply loads, guarantee umbilical by
Pure bending acts on, and can be realized by programming tuning controller；
It can be applied between first slideway and first rack and between second slideway and second rack
Butter is smeared, ensures that slip is smooth, realizes effective transmission of power, and then reduce experimental error.
It is as follows that method of testing is carried out using the experimental provision：
1. according to the length of umbilical to be measured, the correct position adjustable fixed dolly being fixed in toothed track；
2. the first rack is connected with first hydraulic cylinder, the second rack is connected connection with second hydraulic cylinder, ensures that both are transporting
Relative displacement can not occur when dynamic；
3. relative the first connecting flange faces and the second connecting flange faces are connected with the both ends of umbilical respectively, ensure umbilical water
It is flat, and without preloading；
4. according to requirement of experiment, foil gauge is pasted in umbilical surface appropriate location.Foil gauge can be bonded in pipe with glue
Inside cable in respective members (steel pipe, carcass layers steel wire), internal winding displacement passes through the first cylindrical bending apparatus and the second cylinder
The central through hole of shape bending apparatus is drawn.It is curved that the first cylinder is fixed in the winding displacement one end for being connected to foil gauge with adhesive tape simultaneously
Bent device and the second cylindrical bending apparatus, prevent from causing the fluctuation of test data because winding displacement rocks in test process,
The other end is connected to acquisition system, realizes strain data real-time Transmission；
5. first hydraulic cylinder and second hydraulic cylinder are connected on same controller, the first hydraulic pressure can be made by controller
Cylinder and second hydraulic cylinder are coordinated to apply load, make umbilical by expected flecition；
After the completion of 6. whole experimental provision is built, preliminary debugging is first carried out to whole test system.Pass through each hydraulic cylinder
Driving is loaded by a small margin to umbilical, analyzes the curve that the strain of collection changes over time.After test request to be achieved, it can divide
Group carries out experiment；
7. controlling first hydraulic cylinder and second hydraulic cylinder, a variety of load modes such as distribution, synchronous are realized, pass through three hydraulic pressure
Cylinder sets the stretching, compression or bending combination loading of different proportion；
8. when being stretched or during compression experiment, by controlling the 3rd hydraulic cylinder, stretching and compression experiment that pipe pulls are realized；
When carrying out crooked experiment, by controlling first hydraulic cylinder and second hydraulic cylinder, the alternating bending test that pipe is pulled is realized；Work as progress
When stretching, compression and bending combination experiment, by controlling three hydraulic cylinders, the combination experiment that pipe is pulled is realized；
9. the power that record first hydraulic cylinder and second hydraulic cylinder are applied, measure the first sector gear and the second sector gear
Radius, the moment of flexure that must can be put in umbilical；Meanwhile record the horizontal pull that the 3rd hydraulic cylinder is applied；
10. more than the test and data to collecting are counted and error analysis, provides rational test result and most
End form is reported into full experiment.
New umbilical is stretched, compressed the utility model proposes a kind of or bend and combined load while act on
Experimental provision, Detailed Experimental method need to be determined according to experimental provision and experiment condition.
The utility model has the advantage that：
1. the utility model Nover practical, it is power resources to only rely on hydraulic cylinder, you can realizes kinds of experiments mode.And
And it can effectively control the application of respective load.Meanwhile any of loading sequence can be realized according to engineering and design requirement
Conversion.
2. for different length umbilical, the position adjustments of adjustable fixed dolly, this practicality can be realized by toothed track
It is new that there is superior flexibility.
3. in umbilical BENDING PROCESS, by identical Moment the requirement of experiment of pure bending can be achieved, and lead in umbilical both ends
It is relatively stable to cross the moment of flexure that hydraulic cylinder is put on umbilical sample, facilitates later data to record and handle.
4. base of the present utility model is formed using truss structure and steel plate, load-bearing is big, and saves steel, is ensureing entirety
Overall structure weight is efficiently reduced on the premise of rigidity and intensity.There is designability, economy.
5. the utility model is adapted to the umbilical of different lengths, load mode meets during the compliance umbilical use of ocean
Requirement of actual working condition, umbilical actual loading behavior situation can be reacted well.
6. three hydraulic cylinder power resources of the present utility model, record data is convenient, and calculates the moment of flexure for putting on umbilical
Calculation formula is simple, easily calculates and operates.
7. will be sealed on the left of the first cylindrical bending apparatus using first flange, applied on the right side of the second cylindrical bending apparatus
Add interior compression testing device, test can be applied internal pressure to umbilical.
8. because the axial location of the first cylindrical bending apparatus and the second cylindrical bending apparatus is equipped with central through hole,
Test device can be put into umbilical by central through hole, compared to contact bend testing apparatus, can ring measured without dead angle
Strain, can more accurately test umbilical performance.
9. umbilical surrounding space is larger, the convenient corresponding instrument that adds records to umbilical deformation measurement.For the foregoing reasons originally
Utility model can be widely popularized in fields such as experiment tests.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is done simply to introduce in description of the prior art, it should be apparent that, drawings in the following description are
Some embodiments of the utility model, for those of ordinary skill in the art, do not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of new ocean compliance umbilical stretching in specific embodiment of the present utility model, compression and curved
The space structure schematic diagram of bent combined experimental device.
Fig. 2 is the second cylindrical bending apparatus, the second sector gear and second in specific embodiment of the present utility model
The assembling schematic diagram of flange.
Fig. 3 is Fig. 2 right view.
Fig. 4 is Fig. 2 left view.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
As Figure 1-Figure 4, a kind of new ocean compliance umbilical 31 stretches, compresses and bent combined experimental device,
Including base 1 and along the adjustable fixed dolly 2 and moving cart 3 arranged in a straight line on the base 1；
The lower end of the adjustable fixed dolly 2 is connected by toothed track 4 with the base 1, the saw of the toothed track 4
Tooth extends perpendicularly to the straight line, and the lower end of the adjustable fixed dolly 2 has the tooth to match with the toothed track 4
Face, the adjustable fixed dolly 2 are provided with two the first supporting plates 5 and the first slideway 6 parallel to each other, first slideway 6
Between two first supporting plates 5, for first slideway 6 along the linear extension, first slideway 6 is provided with the
One rack 7, the first liquid for promoting first rack 7 to be slided along first slideway 6 is additionally provided with the adjustable fixed dolly 2
Cylinder pressure 8, the first cylindrical bending apparatus 9, the first cylinder bending are provided between the upper end of two first supporting plates 5
The both ends of device 9 have the first connecting flange faces 10 respectively, and the both sides side wall of the first cylindrical bending apparatus 9 passes through first
Rotary shaft 11 is rotatably connected with first supporting plate 5, and the downside side wall of the first cylindrical bending apparatus 9 is fixed with first
Sector gear 12, the engagement of the sawtooth of first sector gear 12 and first rack 7；
The lower end both sides of the moving cart 3 be respectively equipped with it is multiple wheel 13, it is described wheel 13 by horizontal concrete chute 14 with it is described
Base 1 is slidably connected, and bearing of trend and the straight line parallel of the horizontal concrete chute 14, the moving cart 3 are provided with two
Second supporting plate 15 parallel to each other and the second slideway 16, second slideway 16 positioned at two second supporting plates 15 it
Between, second slideway 16 is provided with the second rack 17, the moving cart 3 along the linear extension, second slideway 16
On be additionally provided with the second hydraulic cylinder 18 for promoting second rack 17 to be slided along second slideway 16, two described second support
The second cylindrical bending apparatus 19 is provided between the upper end of plate 15, the both ends of the second cylindrical bending apparatus 19 have respectively
Second connecting flange faces 20, the both sides side wall of the second cylindrical bending apparatus 19 pass through the second rotary shaft 21 and described second
Supporting plate 15 is rotatably connected, and the downside side wall of the second cylindrical bending apparatus 19 is fixed with the second sector gear 22, described
The engagement of the sawtooth of second sector gear 22 and second rack 17；
Axis of the axis of the first cylindrical bending apparatus 9 perpendicular to first rotary shaft 11；
Axis of the axis of the second cylindrical bending apparatus 19 perpendicular to second rotary shaft 21；
The intersection point and described second of the axis of the first cylindrical bending apparatus 9 and the axis of first rotary shaft 11
The intersection point of the axis of cylindrical bending apparatus 19 and the axis of second rotary shaft 21 is located in the same horizontal plane；
The 3rd hydraulic cylinder 23 for promoting the moving cart 3 to be slided along the horizontal concrete chute 14 is additionally provided with the base 1,
The described one end of 3rd hydraulic cylinder 23 away from the moving cart 3 is connected by fixed wall 24 with the base 1.
The base 1 is included provided with the toothed track 4, the horizontal concrete chute 14, the 3rd hydraulic cylinder 23 and described
Plate 25 and lower panel 26 above fixed wall 24, are provided with truss 27 between the top panel 25 and the lower panel 26.
The axial location of the first cylindrical bending apparatus 9 and the second cylindrical bending apparatus 19 is equipped with center
Through hole 28, the first cylindrical left side of bending apparatus 9 is sealed using first flange 29, in the described second cylindrical bending apparatus
19 right sides apply internal pressure test device, and internal pressure test, or the second cylindrical right side of bending apparatus 19 can be carried out to umbilical 31
Sealed using second flange 30, apply internal pressure test device in the described first cylindrical left side of bending apparatus 9, umbilical 31 can be entered
Row internal pressure is tested.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (3)
1. a kind of new ocean compliance umbilical stretching, compression and bending combined experimental device, it is characterised in that including base
And along the adjustable fixed dolly and moving cart arranged in a straight line on the base；
The lower end of the adjustable fixed dolly is connected by toothed track with the base, the sawtooth extension side of the toothed track
To perpendicular to the straight line, the lower end of the adjustable fixed dolly has a flank of tooth to match with the toothed track, it is described can
Fixed dolly is adjusted to be provided with two the first supporting plates and the first slideway parallel to each other, first slideway is located at two described the
Between one supporting plate, for first slideway along the linear extension, first slideway is provided with the first rack, described adjustable solid
Determine to be additionally provided with the first hydraulic cylinder for promoting first rack to slide along first slideway on dolly, two first supports
The first cylindrical bending apparatus is provided between the upper end of plate, the both ends of the first cylindrical bending apparatus have first to connect respectively
Acting flange face, the both sides side wall of the first cylindrical bending apparatus are connected by the first rotary shaft and first supporting plate rotation
Connect, the downside side wall of the first cylindrical bending apparatus is fixed with the first sector gear, the sawtooth of first sector gear
With the engagement of first rack；
The lower end both sides of the moving cart are respectively equipped with multiple wheels, and the wheel is slided by horizontal concrete chute with the base to be connected
Connect, the bearing of trend of the horizontal concrete chute and the straight line parallel, the moving cart are provided with two parallel to each other second
Supporting plate and the second slideway, second slideway is between two second supporting plates, and second slideway is along described straight
Line extends, and second slideway is provided with the second rack, is additionally provided with the moving cart and promotes second rack described in
The second hydraulic cylinder that second slideway slides, the second cylindrical bending apparatus is provided between the upper end of two second supporting plates,
The both ends of the second cylindrical bending apparatus have the second connecting flange faces respectively, and the two of the second cylindrical bending apparatus
Side side wall is rotatably connected by the second rotary shaft with second supporting plate, the downside side wall of the second cylindrical bending apparatus
It is fixed with the second sector gear, the engagement of the sawtooth of second sector gear and second rack；
Axis of the axis of the first cylindrical bending apparatus perpendicular to first rotary shaft；
Axis of the axis of the second cylindrical bending apparatus perpendicular to second rotary shaft；
Intersection point and second cylinder of the axis of the first cylindrical bending apparatus with the axis of first rotary shaft
The intersection point of the axis of bending apparatus and the axis of second rotary shaft is located in the same horizontal plane；
The 3rd hydraulic cylinder for promoting the moving cart to be slided along the horizontal concrete chute, the 3rd liquid are additionally provided with the base
The one end of cylinder pressure away from the moving cart is connected by fixed wall with the base.
2. a kind of new ocean compliance umbilical stretching, compression and bending combined experimental device according to claim 1,
It is characterized in that：The base includes being provided with the toothed track, the horizontal concrete chute, the 3rd hydraulic cylinder and the fixation
Plate and lower panel above wall, truss is provided between the top panel and the lower panel.
3. a kind of new ocean compliance umbilical stretching, compression and bending combined experimental device according to claim 1,
It is characterized in that：The axial location of the first cylindrical bending apparatus and the second cylindrical bending apparatus is equipped with center
Through hole, the described one end of first cylindrical bending apparatus away from the described second cylindrical bending apparatus is provided with first flange, described
The one end of second cylindrical bending apparatus away from the described first cylindrical bending apparatus is provided with second flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720884295.2U CN206945431U (en) | 2017-07-20 | 2017-07-20 | A kind of new ocean compliance umbilical stretching, compression and bending combined experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720884295.2U CN206945431U (en) | 2017-07-20 | 2017-07-20 | A kind of new ocean compliance umbilical stretching, compression and bending combined experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206945431U true CN206945431U (en) | 2018-01-30 |
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ID=61370987
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720884295.2U Expired - Fee Related CN206945431U (en) | 2017-07-20 | 2017-07-20 | A kind of new ocean compliance umbilical stretching, compression and bending combined experimental device |
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| Country | Link |
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| CN (1) | CN206945431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192606A (en) * | 2017-07-20 | 2017-09-22 | 大连理工大学 | A kind of new ocean compliance umbilical stretching, compression and bending combined experimental device |
-
2017
- 2017-07-20 CN CN201720884295.2U patent/CN206945431U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192606A (en) * | 2017-07-20 | 2017-09-22 | 大连理工大学 | A kind of new ocean compliance umbilical stretching, compression and bending combined experimental device |
| CN107192606B (en) * | 2017-07-20 | 2023-06-16 | 大连理工大学 | Marine flexible pipe cable stretching, compressing and bending combined experimental device |
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