CN106855482A - A kind of test method and device for simulating the abrasion of compliant riser armor interlayer - Google Patents
A kind of test method and device for simulating the abrasion of compliant riser armor interlayer Download PDFInfo
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- CN106855482A CN106855482A CN201611228910.0A CN201611228910A CN106855482A CN 106855482 A CN106855482 A CN 106855482A CN 201611228910 A CN201611228910 A CN 201611228910A CN 106855482 A CN106855482 A CN 106855482A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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Abstract
A kind of test method and device for simulating the abrasion of compliant riser armor interlayer of the present invention, the experimental rig includes universal testing machine, lower grip of testing machine, lower specimen holder, upper specimen holder and upper grip of testing machine；The test method is comprised the following steps：1) sample prepares；2) sample assembling：3) sample is installed；4) equipment prepares；5) experiment is started；6) experiment terminates；7) result of the test.The present invention applies the tensile load of alternation by universal testing machine to specimen holder, thus cause sample that axial elongation and retraction occur, realize with the abrasion between layer sample and between interlayer sample, pulling down sample after test, can judge abrasion condition by observing the mass loss of damage and analytical unit length samples.
Description
Technical field：
The invention belongs to material polishing machine technical field of measurement and test, and in particular to one kind simulation compliant riser armor interlayer
The test method and device of abrasion.
Background technology：
With the development of global economy, the demand of oil consumption is continuously increased, since the nearly more than ten years, because Land petroleum is surveyed
Visit higher with the degree of exploitation, therefore newfound oil gas field scale is smaller, the tribute that incremental reserves increase to world's oil gas
Offer reduction.By contrast, world ocean oil-gas exploration is developed rapidly, and the ratio that its oil and gas production accounts for Gross World Product constantly increases
Plus.In offshore and gas development engineering, submarine pipeline is the passage of sea-bottom oil-gas conveying, also referred to as marine oil and gas production system
In lifeline, be the important component of offshore and gas development system, be widely used in spanline, deep-sea platform it is vertical
In the exploitation of pipe and marginal oil field.In deepwater environment exploitation, petroleum pipeline length is big, the change in shape in the presence of ocean current
Greatly, now steel pipe has not been applied to, and compound material flexible pipeline has obvious advantage.Because flexible pipe is being installed and is being on active service
During, various load such as external and internal pressure, axial tension, bending, torsion can be subject to, there is conquassation, flexing, fatigue, surrender
Etc. various of failure, therefore in order to meet service demand, flexible pipe employs multi-layer compound structure, and uses metal material
(or nonmetallic composite) is used as the material for carrying all kinds of mechanical loadings.The main flow structure of current compliant riser is between each layer
Relatively independent non-stick junction structure, tension armor therein is that the steel of the square-section of helical layer winding are (or nonmetallic
Composite) cable, the axial tensile loads for carrying pipeline.Because each layer of non-stick junction type compliant riser is relatively independent,
Therefore in the presence of all kinds of load, there is relative motion in interlayer, and thus the wear problem of reinforcing material therefore is not just allowed to neglect
Depending on.
API RP 17B and API SPEC 17J are the flexible pipes of offshore oil field application generally acknowledged in the world at present
Manufacture and evaluation criterion, wherein requiring that supplier carries out wear-resisting test to armor, and provide necessary data to prove tubing
Reliability, but standard in specific test procedure is described.
The actual loading situation of non-stick junction type compliant riser is analyzed, inside and outside Fluid pressure is primarily subjected to and axial tension is carried
Lotus, thus causes each layer to produce radial displacement, so as to cause interlayer to wear and tear.Relative fortune between each layer (e.g., tension armor)
Dynamic amplitude very little, rate of displacement are low, friction is based on static friction and sliding friction.Therefore, the wear testing for mainly using at present
Method such as GB/T 12444, GB/T5478, GB 3960 belong to material properties test (such as determining coefficient of friction), can not mould
Intend the situation of practical application, cannot also evaluate the real protection effect of the wearing layer that standpipe is used.
The content of the invention：
The purpose of the present invention is directed to the deficiency of existing experimental technique, there is provided one kind simulation compliant riser armor interlayer
The test method and device of abrasion.
To reach above-mentioned purpose, the present invention is to be achieved through the following technical solutions：
A kind of experimental rig for simulating the abrasion of compliant riser armor interlayer, including universal testing machine, lower grip of testing machine,
Lower specimen holder, upper specimen holder and upper grip of testing machine；Wherein,
During work, test sample is clamped between lower specimen holder and upper specimen holder, and lower specimen holder is clamped in
On the lower grip of testing machine of universal testing machine, upper specimen holder is clamped on the upper grip of testing machine of universal testing machine.
Further improvement of the invention is that lower grip shank is provided with lower specimen holder, is provided with upper specimen holder
Upper grip shank, lower specimen holder is clamped on the lower grip of testing machine of universal testing machine by lower grip shank, upper specimen holder
It is clamped on the upper grip of testing machine of universal testing machine by upper grip shank.
Of the invention further improvement be, lower specimen holder and upper specimen holder include detachable and use cooperatively
First specimen holder and the second specimen holder, form for clamping test sample between the first specimen holder and the second specimen holder
Sample groove.
Further improvement of the invention is to offer screwed hole on the first specimen holder and the second specimen holder, and
Linked together by being arranged on the fastening bolt at screwed hole between first specimen holder and the second specimen holder.
A kind of test method for simulating the abrasion of compliant riser armor interlayer, it is soft that the test method is based on a kind of above-mentioned simulation
Property the abrasion of standpipe armor interlayer experimental rig, comprise the following steps：
1) sample prepares：Straight batten is produced as test sample using the armoring line of stretching armor；
2) sample assembling：Test sample is divided into 2 groups, every group of test sample close-packed arrays and end is concordant, two groups of surveys
Have a try sample juxtaposition, axial intersecting angle is equal to the actual interlayer winding angle of armor line in compliant riser, after combination
One side end of test sample is clamped in lower specimen holder, and the end side of the test sample after combination is clamped in into upper sample
In fixture, and every group of herewith axial angle in the laying direction of test sample is identical；
3) sample is installed：Control universal testing machine, makes lower grip of testing machine and upper grip of testing machine clamp respectively corresponding
Lower specimen holder and upper specimen holder；
4) equipment prepares：Control universal testing machine, applies the pretension tensile force of 500N, it is ensured that clamp good, load everywhere
Reset；
5) experiment is started：Control universal testing machine, using force value control model, with speed v1At the uniform velocity increase tensile load extremely
F1, protect load time t1, then with speed v2At the uniform velocity reduce tensile load to F2, protect load time t2, this is a loaded cycle, then
Repeat cycle-index N, wherein F that loaded cycle specifies up to the test period1And F2Axial tension no more than pipe design is carried
Lotus, and F1＞ F2；
6) experiment terminates：After completing the cycle-index of test period, universal testing machine is controlled, removal tensile load is extremely at a slow speed
0N, unclamps lower grip of testing machine and upper grip of testing machine, pulls down the test sample with lower specimen holder and upper specimen holder, takes
Lower test sample；
7) result of the test：Using the abrasion condition in the middle part of naked eyes and every test sample of observation by light microscope, interception is surveyed
Have a try sample middle part lamination portion, weigh quality simultaneously with standard quality contrast, calculate mass loss.
The present invention is further improved, step 3) in, lower grip shank, upper specimen holder are provided with lower specimen holder
On be provided with grip shank, during clamping, it is desirable to which the axle center of lower grip shank and upper grip shank is with lower grip of testing machine and upper testing machine
The axis coinciding of fixture.
The present invention has following beneficial effect：
A kind of experimental rig of simulation compliant riser armor interlayer abrasion that the present invention is provided, including universal testing machine,
Lower grip of testing machine, lower specimen holder, upper specimen holder and upper grip of testing machine, wherein test sample via two ends test clamp
Tool fastening, by universal testing machine to specimen holder apply alternation tensile load, thus cause sample occur axial elongation and
Retraction, realizes with the abrasion between layer sample and between interlayer sample.Sample being pulled down after test, can by observe damage and
The mass loss of analytical unit length samples judges abrasion condition.
A kind of test method of simulation compliant riser armor interlayer abrasion that the present invention is provided, during experiment, often covers sample
Fixture is made up of two parts of capable assembling, and is fixed by fastening bolt.Specimen holder inner side be provided with sample groove, be used to accommodate and
Fixed sample end, in order to ensure sample end fixing compact in groove, can process indentation, and can be used viscous in sample rooved face
Connect agent.
The method can also be used for evaluating the protection effect of wearing layer.The method simulates the radial direction under actual military service load-up condition
Displacement, Wear specimens use straight with pipeline tension armor armor line same material same specification (such as steel A-wire of square-section)
Batten, by multiple rows of batten held tight between 2 sets of stretching clamps, each stock layout bar is (equivalent with there is angle between fixture center line
Tension armor armor line is along the axial actual winding angle of pipeline in pipeline) and the ply stacking angle of adjacent 2 stock layout bar is opposite
(intersecting laying).Apply the tensile load of alternation to batten by fixture, then batten extends and bounces back therewith, corresponds to
The change that the angle of axial direction will also occur alternation is stretched, the abrasion between batten is achieved in.If in every batten (or per stock layout
Bar) between increase high-abrasive material, you can the actual protection effect of assessment.In short, the present invention has following some advantage：
1st, method of testing of the present invention is reasonable in design, and experimental rig is simple, and test result is directly perceived；
2nd, the material and specification of sample are equal to actual tubing in experimental rig, and load mode (inducement of abrasion) is also simulated
Actual military service situation, acquired results can characterize the abrasion resistance properties of final products；
3rd, increase high-abrasive material between sample, its protection effect also can be evaluated；
4th, the effective evaluation region of sample is in open state in process of the test, can add other means of testing, such as profit
Sample heating that abrasion causes etc. is detected with infrared temperature instrument.
Brief description of the drawings：
Fig. 1 is a kind of structural representation of the experimental rig for simulating the abrasion of compliant riser armor interlayer of the present invention；
Fig. 2 is the clamp position schematic diagram of test sample；
Fig. 3 is the combination diagram of specimen holder.
Specific embodiment：
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1 to Figure 3, a kind of experimental rig of simulation compliant riser armor interlayer abrasion that the present invention is provided,
Including universal testing machine 1, lower grip of testing machine 2, lower specimen holder 3, upper specimen holder 5 and upper grip of testing machine 6；Wherein, under
Lower grip shank 301 is provided with specimen holder 3, grip shank 501 is provided with upper specimen holder 5, under lower specimen holder 3 passes through
Grip shank 301 is clamped on the lower grip of testing machine 2 of universal testing machine 1, and upper specimen holder 5 is pressed from both sides by upper grip shank 501
Hold on the upper grip of testing machine 6 of universal testing machine 1.
Wherein, lower specimen holder 3 and upper specimen holder 5 include the He of the first specimen holder 9 that is detachable and using cooperatively
Second specimen holder 10, forms the sample for clamping test sample 4 between the first specimen holder 9 and the second specimen holder 10
Groove.Additionally, screwed hole 9 is offered on the first specimen holder 9 and the second specimen holder 10, and the first specimen holder 9 and second
Linked together by being arranged on the fastening bolt 7 at screwed hole 9 between specimen holder 10.
In order to further understanding of the invention, first provide a kind of simulation compliant riser armour to of the invention in conjunction with the embodiments
The test method that dress weares and teares between layer by layer is further illustrated.
Embodiment 1：The test non-stick junction type compliant riser resistance to interlayer polishing machine of steel tension armor
1) sample prepares：(sample cross is steel armor to produce 10cm straight battens 10 long using steel armouring A-wire
The original-shape of line, is rectangle in this example) as test sample；
2) sample assembling：Sample is divided into 2 groups, every group 5.Every group of sample close-packed arrays end is concordant, and two groups of samples are handed over
Fork is overlapped, and 50 ° of axial intersecting angle (is equal to the interlayer winding angle of steel armor line in compliant riser), and two groups of sample ends are placed in
In the sample groove of specimen holder, and test fixture is tightly fastened by fastening bolt, it is desirable to 2 sets of clamping arbors of specimen holder
To coincidence, and every group of herewith axial angle in the laying direction of sample is identical；
3) sample is installed：Control universal testing machine, makes grip of testing machine step up the grip shank of 2 sets of specimen holders, it is desirable to
The center superposition of grip shank and grip of testing machine；
4) equipment prepares：Apply the pretightning force of 500N, it is ensured that sample holder is good, load resets；
5) experiment is started：Using force value control model, tensile load to 800kN is at the uniform velocity increased with the speed of 100kN/min
(0.8 times of pipe design axial tensile loads 1000kN), protects and carries 5min, then at the uniform velocity reduces drawing with the speed of 100kN/min
Load to 500kN (0.5 times of pipe design axial tensile loads 1000kN) is stretched, is protected and is carried 5min, this is a loaded cycle, is surveyed
The examination cycle is 1000 circulations；
6) experiment terminates：After completing the period of test period, load is at the uniform velocity down to 0N with the speed of 100kN/min,
Grip of testing machine is unclamped, sample is pulled down, fastening bolt is unclamped, specimen holder is removed；
7) result of the test：Using the abrasion condition in the middle part of naked eyes and every sample of observation by light microscope, in interception sample
Portion (lamination portion) 2cm, weighs quality and is contrasted with standard quality, calculates mass loss.
Embodiment 2：The test non-stick junction type flexible pipe resistance to interlayer polishing machine of carbon fibre reinforced composite tension armor
1) sample prepares：Using with carbon fibre composite armor line identical material and technique, make long flat of 15cm
Straight batten 10 (sample cross is equal to the original-shape of armor line) is used as test sample；
2) sample assembling：Sample is divided into 2 groups, every group 5.Every group of sample close-packed arrays end is concordant, and two groups of samples are handed over
Fork is overlapped, and 60 ° of axial intersecting angle (is equal to the interlayer winding angle of armor line in compliant riser), and two groups of sample ends are placed in examination
In the sample groove of sample fixture, appropriate epoxy adhesive is added in sample groove, and it is by fastening bolt that test fixture is tight
It is fixed, it is desirable to which that the grip shank of 2 sets of specimen holders is axially coincident, and every group of herewith axial angle in the laying direction of sample is identical,
Standing 24h ensures that epoxy adhesive solidification is thorough；
3) sample is installed：Control universal testing machine, makes grip of testing machine step up the grip shank of 2 sets of specimen holders, it is desirable to
The center superposition of grip shank and grip of testing machine；
4) equipment prepares：Apply the pretightning force of 500N, it is ensured that sample holder is good, load resets；
5) experiment is started：Using force value control model, tensile load to 400kN is at the uniform velocity increased with the speed of 100kN/min
(0.8 times of pipe design axial tensile loads 500kN), protects and carries 5min, then at the uniform velocity reduces stretching with the speed of 100kN/min
Load is protected and carries 5min to 250kN (0.5 times of pipe design axial tensile loads 500kN), and this is a loaded cycle, test
Cycle is 1000 circulations；
6) experiment terminates：After completing the period of test period, load is at the uniform velocity down to 0N with the speed of 100kN/min,
Grip of testing machine is unclamped, sample is pulled down, fastening bolt is unclamped, specimen holder is removed, it is using handsaw that the two ends of sample are sawed-off, protect
Stay middle part；
7) result of the test：Using the abrasion condition in the middle part of naked eyes and every sample of observation by light microscope, in interception sample
Portion (lamination portion) 2cm, weighs quality and is contrasted with standard quality, calculates mass loss.
Claims (6)
1. a kind of experimental rig for simulating the abrasion of compliant riser armor interlayer, it is characterised in that including universal testing machine (1),
Lower grip of testing machine (2), lower specimen holder (3), upper specimen holder (5) and upper grip of testing machine (6)；Wherein,
During work, test sample (4) is clamped between lower specimen holder (3) and upper specimen holder (5), and lower specimen holder (3)
It is clamped on the lower grip of testing machine (2) of universal testing machine (1), upper specimen holder (5) is clamped in universal testing machine (1)
On upper grip of testing machine (6).
2. the experimental rig that a kind of simulation compliant riser armor interlayer according to claim 1 weares and teares, it is characterised in that
Lower grip shank (301) is provided with lower specimen holder (3), grip shank (501), lower sample are provided with upper specimen holder (5)
Fixture (3) is clamped on the lower grip of testing machine (2) of universal testing machine (1) by lower grip shank (301), upper specimen holder
(5) it is clamped on the upper grip of testing machine (6) of universal testing machine (1) by upper grip shank (501).
3. the experimental rig that a kind of simulation compliant riser armor interlayer according to claim 1 weares and teares, it is characterised in that
Lower specimen holder (3) and upper specimen holder (5) include the first specimen holder (9) and the second sample detachable and use cooperatively
Fixture (10), forms the sample for clamping test sample (4) between the first specimen holder (9) and the second specimen holder (10)
Groove.
4. the experimental rig that a kind of simulation compliant riser armor interlayer according to claim 3 weares and teares, it is characterised in that
Screwed hole (9), and the first specimen holder (9) and second are offered on first specimen holder (9) and the second specimen holder (10)
Linked together by being arranged on the fastening bolt (7) at screwed hole (9) place between specimen holder (10).
5. it is a kind of to simulate the test method that compliant riser armor interlayer weares and teares, it is characterised in that the test method is based on right
It is required that a kind of experimental rig of the simulation compliant riser armor interlayer abrasion any one of 1 to 4, comprises the following steps：
1) sample prepares：Straight batten is produced as test sample (4) using the armoring line of stretching armor；
2) sample assembling：Test sample (4) is divided into 2 groups, every group of test sample (4) close-packed arrays and end is concordant, two groups
Test sample (4) juxtaposition, axial intersecting angle is equal to the actual interlayer winding angle of armor line in compliant riser, will combine
One side end of test sample (4) afterwards is clamped in lower specimen holder (3), by another side of the test sample (4) after combination
Portion is clamped in upper specimen holder (5), and every group of herewith axial angle in the laying direction of test sample (4) is identical；
3) sample is installed：Control universal testing machine (1), makes lower grip of testing machine (2) and upper grip of testing machine (6) clamp respectively right
The lower specimen holder (3) and upper specimen holder (5) answered；
4) equipment prepares：Control universal testing machine (1), applies the pretension tensile force of 500N, it is ensured that clamp well everywhere, load is clear
Zero；
5) experiment is started：Control universal testing machine (1), using force value control model, with speed v1At the uniform velocity increase tensile load extremely
F1, protect load time t1, then with speed v2At the uniform velocity reduce tensile load to F2, protect load time t2, this is a loaded cycle, then
Repeat cycle-index N, wherein F that loaded cycle specifies up to the test period1And F2Axial tension no more than pipe design is carried
Lotus, and F1＞ F2；
6) experiment terminates：After completing the cycle-index of test period, universal testing machine (1) is controlled, removal tensile load is extremely at a slow speed
0N, unclamps lower grip of testing machine (2) and upper grip of testing machine (6), pulls down with lower specimen holder (3) and upper specimen holder (5)
Test sample (4), remove test sample (4)；
7) result of the test：Use the abrasion condition in the middle part of naked eyes and every test sample of observation by light microscope (4), interception test
Sample (4) middle part lamination portion, weighs quality and is contrasted with standard quality, calculates mass loss.
6. the test method that a kind of simulation compliant riser armor interlayer according to claim 5 weares and teares, it is characterised in that
Step 3) in, lower grip shank (301) is provided with lower specimen holder (3), it is provided with grip shank on upper specimen holder (5)
(501), during clamping, it is desirable to which the axle center of lower grip shank (301) and upper grip shank (501) is with lower grip of testing machine (2) and upper experiment
The axis coinciding of machine clamp (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611228910.0A CN106855482A (en) | 2016-12-27 | 2016-12-27 | A kind of test method and device for simulating the abrasion of compliant riser armor interlayer |
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| CN201611228910.0A CN106855482A (en) | 2016-12-27 | 2016-12-27 | A kind of test method and device for simulating the abrasion of compliant riser armor interlayer |
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Cited By (6)
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| CN108801817A (en) * | 2018-05-07 | 2018-11-13 | 中国航发北京航空材料研究院 | A kind of crooked test method and apparatus of flexible battery |
| CN109738179A (en) * | 2019-03-18 | 2019-05-10 | 南昌航空大学 | A kind of fatigue test clamper of HF fatigue testing machine |
| CN112595739A (en) * | 2020-12-09 | 2021-04-02 | 重庆重玻节能玻璃有限公司 | Boiling test device for glass processing |
| CN114076712A (en) * | 2020-08-19 | 2022-02-22 | 江苏悦达家纺制品有限公司 | Detection apparatus for utensil is examined to special power value of weaving |
| CN114166625A (en) * | 2021-10-20 | 2022-03-11 | 浙江工业大学之江学院 | Stretch-proofing performance detection device of cable processing usefulness |
| CN114486558A (en) * | 2022-04-06 | 2022-05-13 | 四川省公路规划勘察设计研究院有限公司 | Stress measurement method and force measurement device for prestressed workpiece |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801817A (en) * | 2018-05-07 | 2018-11-13 | 中国航发北京航空材料研究院 | A kind of crooked test method and apparatus of flexible battery |
| CN109738179A (en) * | 2019-03-18 | 2019-05-10 | 南昌航空大学 | A kind of fatigue test clamper of HF fatigue testing machine |
| CN114076712A (en) * | 2020-08-19 | 2022-02-22 | 江苏悦达家纺制品有限公司 | Detection apparatus for utensil is examined to special power value of weaving |
| CN112595739A (en) * | 2020-12-09 | 2021-04-02 | 重庆重玻节能玻璃有限公司 | Boiling test device for glass processing |
| CN114166625A (en) * | 2021-10-20 | 2022-03-11 | 浙江工业大学之江学院 | Stretch-proofing performance detection device of cable processing usefulness |
| CN114486558A (en) * | 2022-04-06 | 2022-05-13 | 四川省公路规划勘察设计研究院有限公司 | Stress measurement method and force measurement device for prestressed workpiece |
| CN114486558B (en) * | 2022-04-06 | 2022-07-15 | 四川省公路规划勘察设计研究院有限公司 | Stress measuring method and force measuring device for prestressed workpiece |
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