CN106168558A - A kind of ocean engineering compliance umbilical alternating bending test device and method - Google Patents
A kind of ocean engineering compliance umbilical alternating bending test device and method Download PDFInfo
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- CN106168558A CN106168558A CN201610814699.4A CN201610814699A CN106168558A CN 106168558 A CN106168558 A CN 106168558A CN 201610814699 A CN201610814699 A CN 201610814699A CN 106168558 A CN106168558 A CN 106168558A
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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
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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Abstract
The invention discloses a kind of ocean engineering compliance umbilical alternating bending test device and method, test device includes anvil block, anvil block includes umbilical curved support plates and two arc plates, it is oppositely arranged between the cambered surface of two arc plates, umbilical curved support plates is provided with the anchor tip I connecting umbilical, the axis of anchor tip I is positioned at the axis institute of two arc plates planar, and test device also includes driving umbilical planar around driving means and the support platform of fixing described umbilical curved support plates of the alternating bending of described anchor tip I.The present invention can make umbilical carry out both sides alternating bending with axis for axis of symmetry, and therefore, the maximum defluxion of two lateral bends is equal, it is possible to tests the crooked behavior of umbilical, true reappearance umbilical actual motion state more fully hereinafter.Meanwhile, regulate sliding sleeve position, just can change the maximum amplitude of oscillation of actuator, thus adapt to the sag requirement of different umbilical.
Description
Technical field
The present invention relates to umbilical field tests, specifically a kind of ocean engineering compliance umbilical alternating bending test dress
Put and method.
Background technology
China's Marine oil and gas resource rich reserves, and great majority are distributed in the deep water sea areas such as the South Sea.And sea 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 is generally made up of corresponding building blocks of function and stiffener such as armouring wire etc..For different engineering demands, should
Select the umbilical of corresponding function；Sea cable is mainly responsible for seabed production equipment and provides electric energy, and umbilical cables mainly provides water floating body
And the correlation function such as electric power, signal transmission between subsea equipment, the oil-gas transportation between equipment is mainly responsible for by flexible duct.Ocean
Compliance umbilical in storage transport, install and lay and during the operating mode such as operation in place, due to by work load, floating motion and multiple
The factor impacts such as miscellaneous marine environment, easily cause multiple mechanical behavior and lost efficacy.Wherein, affected by bending load for a long time when umbilical
Time, built-in function and the load-carrying member of umbilical will destroy, i.e. fatigue rupture, affects the properly functioning of umbilical function.Meanwhile,
Flexible pipe cable under Long-term bend load action is easily caused the lateral of armouring wire under hydraulic pressure with the effect being compressed axially and bends
Bent.In order to determine whether umbilical lost efficacy, and the response of structure after losing efficacy, thus the probability destroyed during reducing use and
Monitor umbilical in time, it is ensured that properly functioning in umbilical service life.Need to come ocean flexible pipe cable the most curved by test method
State under bent load is checked and is studied.The Strain Accumulation measuring flexible pipe cable armouring wire under alternating bending effect becomes
Change state, flexing anti-to later stage steel wire design and analysis of Fatigue-life are the most significant.
Umbilical alternating bending test often relies on true marine environment at present, but this kind of method is extremely expensive.So it is external
Some laboratorys, manufacturer, oil company use lab simulation method to carry out alternating bending test, so can significantly subtract
Few cost.Although abroad having alternating bending test machine, but designing loaded down with trivial details and uneconomical, often operating inconvenience.
According to Practical Project demand, alternating bending test is usually used in simulating under ocean engineering compliance umbilical operating mode in place
True case of bending.The method using equivalent force, is carried out repeatedly in the range of more than minimum bending radius ocean flexible pipe cable
Bending.Therefore repeated bending test equipment needs to comprise and determines that the chopping block of bending radius and applying moment of flexure bring it about reciprocal week
Phase diastrophic equipment.In order to ensure the stability of entirety, also should there is the track making umbilical move along certain orientation.Except this
Outside, experimentation needs to configure measurement equipment, such as foil gauge or sensor etc. to extract umbilical alternating bending process and being correlated with
Parameter index (middle or direct physical amount).Umbilical alternating bending test flow process is generally the most as follows: sample, fix, pieces of cloth,
Load, measure and post processing mode expansion.Experiment to be formulated corresponding testing scheme before starting and choose umbilical sample, so
After umbilical to be tested is fixed on test stand, select, suitable track be installed, carry out at test position according to requirement of experiment
Foil gauge is arranged, and is coupled with data acquisition equipment.Guarantee the errorless rear start-up loading equipment of aforesaid operations, adopt in real time simultaneously
Collection related data.Finally, it is analyzed the data obtained processing and forming perfect laboratory report.
Summary of the invention
According to technical problem set forth above, and provide a kind of ocean engineering compliance umbilical alternating bending test device and
Method.
The technological means that the present invention uses is as follows:
A kind of ocean engineering compliance umbilical alternating bending test device, including anvil block, described anvil block includes that umbilical bends
Gripper shoe and two the arc plates being positioned in described umbilical curved support plates, be oppositely arranged between the cambered surface of two described arc plates, institute
Stating umbilical curved support plates and be provided with the anchor tip I connecting umbilical, described anchor tip I is positioned at the cambered surface of two described arc plates
Between, the axis of described anchor tip I is positioned at the axis institute of two described arc plates planar, and described test device also includes driving
Move umbilical driving means and fixing described umbilical curved support plates around the alternating bending of described anchor tip I in described plane
Support platform.
Described driving means includes that actuator, described a kind of ocean engineering compliance umbilical alternating bending test device are also wrapped
Include ratchet,
Described actuator one end is connected with swivel I by connecting rod I, and described actuator can be around described swivel I
Rotate in described plane,
The other end of described actuator is connected with swivel II by connecting rod II, and described actuator can be around described rotation
Joint II rotates in described plane,
The axis of described connecting rod I and described connecting rod II is respectively positioned in described plane,
Described ratchet is connected with described support platform by pawl seat, and described pawl seat is provided with and prevents described ratchet along locked
The stop block that direction rotates, the center of rotation of described ratchet is fixedly connected with crank, and the other end of described crank is provided with can be along institute
Stating the sliding sleeve that connecting rod II is slided, the axis of described sliding sleeve is parallel to the Plane of rotation of described ratchet, and described ratchet is wanted to rotate
Time, make described stop block separate with described ratchet, after rotation completes, described stop block contacts with described ratchet, and prevents institute
State ratchet to rotate.
The other end of described swivel I is provided with the anchor tip II being connected with umbilical,
The other end of described swivel II is fixing with described support platform to be connected,
Under duty, described actuator is stretched, and drives described sliding sleeve along the slip of described connecting rod II, thus changes described
The direction that actuator swings, and then drive umbilical alternating bending.
On the outer of the horizontal cross-section of described arc plate, radius of curvature is 3 meters, more than the minimum bend half of most umbilicals
Footpath.
The interior edge of described arc plate is provided with the supporting girder structure being connected with described umbilical curved support plates.
Described plane is the axis place plane of two described arc plates.
Being additionally provided with vertical track device on described support platform, described vertical track device has a vertical guide slot, described vertically
Being provided with ring in guide groove, the both sides of described ring have the connection post that the cell wall with described vertical guide slot is connected, described connecting rod I one end
Being connected with described actuator, the other end is connected through described ring with described swivel I,
Under duty, described ring and can be rotated against along the slip of described vertical guide slot by described connection post.
The invention also discloses a kind of ocean engineering compliance umbilical alternating bending method of testing, there are following steps:
S1, design test device as described above；
S2, being connected by umbilical joint is vertical with described anchor tip I one end of umbilical, the other end of umbilical is by managing
Cable joint is connected with described anchor tip II；
S3, open on the bus of the umbilical nearest apart from described arc plate take multiple dense arrangement, can be by within umbilical
Armouring wire spills and can accommodate the opening of foil gauge, is bonded on described armouring wire by described foil gauge by glue, with
Time with adhesive tape, the winding displacement one end being connected to described foil gauge is fixed in umbilical, the described winding displacement other end and acquisition system are even
Connect, it is achieved stress-strain data real-time Transmission；
S4, at the axial trisection of umbilical one, open the rectangular window mouth taking about diameter 1/3rd, convenient observe the most curved
The Displacement Cumulative state change of armouring wire during song；
S5, adjust the position of described sliding sleeve, and then change the amplitude peak that described actuator swings so that it is can be in umbilical
Work in minimum bending radius, and do not destroy umbilical；
S6, by described actuator drive umbilical is loaded by a small margin, analyze gather strain time dependent
Curve, completes whole test system is carried out preliminary debugging, and after test request to be achieved, experiment is carried out in packet；
S7, setting the fltting speed of described actuator, along with the continuous increase of load, umbilical is gradually curved to described arc plate
Song, records data situation and the deformation state of Taking Pictures recording armouring wire of each foil gauge, until reaching the anti-of regulation
Multiple number of bends.
The invention have the advantages that
1, comparing monolateral bending apparatus, the present invention can make umbilical carry out both sides alternating bending with axis for axis of symmetry, because of
This, the maximum defluxion of two lateral bends is equal, it is possible to test the crooked behavior of umbilical more fully hereinafter, the actual fortune of true reappearance umbilical
Row state.
2, regulation sliding sleeve position, just can change the maximum amplitude of oscillation of actuator, thus the sag adapting to different umbilical is wanted
Ask.
3, this experimental provision is succinct, and only relying on actuator is power resources, and ratchet can effectively realize the both sides of umbilical
Alternating bending, the swing circle of ratchet and the flexure cycles of umbilical synchronize.
The present invention can be widely popularized in fields such as umbilical tests for the foregoing reasons.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 be the present invention detailed description of the invention in a kind of ocean engineering compliance umbilical alternating bending test device knot
Structure schematic diagram.
Fig. 2 be the present invention detailed description of the invention in the structural representation of driving means.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the right view of Fig. 2.
Fig. 5 be the present invention detailed description of the invention in the connection diagram of ratchet.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is the right view of Fig. 5.
Fig. 8 be the present invention detailed description of the invention in the side view of anvil block.
Fig. 9 is the right view of Fig. 8.
Figure 10 be the present invention detailed description of the invention in the structural representation of vertical track device.
Detailed description of the invention
Embodiment 1
As shown in Fig. 1-Figure 10, a kind of ocean engineering compliance umbilical alternating bending test device, including anvil block, described anvil
Seat includes umbilical curved support plates 1 and two the arc plates 2 being positioned in described umbilical curved support plates 1, the arc of two described arc plates 2
Being oppositely arranged between face, described umbilical curved support plates 1 is provided with the anchor tip I 4 connecting umbilical 3, described anchor tip I 4
Between the cambered surface of two described arc plates 2, the axis of described anchor tip I 4 is positioned at the axis place of two described arc plates 2 puts down
In face, described test device also includes driving umbilical 3 around the driving of described anchor tip I 4 alternating bending in described plane
Device and the support platform 5 of fixing described umbilical curved support plates 1.
Described driving means includes actuator 6, and described a kind of ocean engineering compliance umbilical alternating bending test device is also
Including ratchet 7,
Described actuator 6 one end is connected with swivel I 9 by connecting rod I 8, and described actuator 6 can connect around described rotation
I 9 rotate in described plane,
The other end of described actuator 6 is connected with swivel II 11 by connecting rod II 10, and described actuator 6 can be around institute
State swivel II 11 to rotate in described plane,
The axis of described connecting rod I 8 and described connecting rod II 10 is respectively positioned in described plane,
Described ratchet 7 is connected with described support platform 5 by pawl seat 12, and described pawl seat 7 is provided with and prevents described ratchet 7
The stop block 17 rotated along locked direction, the center of rotation of described ratchet 7 is fixedly connected with crank 13, another of described crank 13
End is provided with the sliding sleeve 14 that can slide along described connecting rod II 10, and the axis of described sliding sleeve 14 is parallel to the rotary flat of described ratchet 7
Face,
The other end of described swivel I 9 is provided with the anchor tip II 15 being connected with umbilical 3,
The other end of described swivel II 11 is fixing with described support platform 5 to be connected,
Under duty, described actuator 6 is stretched, and drives described sliding sleeve 14 to slide along described connecting rod II 10, thus changes
Become the direction that described actuator 6 swings, and then drive umbilical 3 alternating bending.
On the outer of the horizontal cross-section of described arc plate 2, radius of curvature is 3 meters, more than the minimum bend half of most umbilicals
Footpath.
The interior edge of described arc plate 2 is provided with the supporting girder structure 16 being connected with described umbilical curved support plates 1.
Being additionally provided with vertical track device 18 on described support platform 5, described vertical track device 18 has vertical guide slot, described
Being provided with ring 19 in vertical guide slot, the both sides of described ring 19 have the connection post that the cell wall with described vertical guide slot is connected, described company
Extension bar I 8 one end is connected with described actuator 6, and the other end is connected through described ring 19 with described swivel I 9,
Under duty, described ring 19 and can be rotated against along the slip of described vertical guide slot by described connection post.
Embodiment 2
A kind of ocean engineering compliance umbilical alternating bending method of testing, has following steps:
Device is tested in S1, design as described in Example 1；
S2, being connected by umbilical joint is vertical with described anchor tip I 4 one end of umbilical 3, the other end of umbilical 3 is logical
Cross umbilical joint to be connected with described anchor tip II 15；
S3, open on the bus of the umbilical 3 nearest apart from described arc plate 2 take multiple dense arrangement, can be by inside umbilical 3
Armouring wire spill and the opening of foil gauge can be accommodated, by glue, described foil gauge is bonded on described armouring wire,
With adhesive tape, the winding displacement one end being connected to described foil gauge is fixed in umbilical 3, the described winding displacement other end and acquisition system simultaneously
Connect, it is achieved stress-strain data real-time Transmission；
S4, at the axial trisection one of umbilical 3, open the rectangular window mouth taking about diameter 1/3rd, convenient observe the most curved
The Displacement Cumulative state change of armouring wire during song；
S5, adjust the position of described sliding sleeve 14, and then change the amplitude peak that described actuator 6 swings so that it is Neng Gou
Work in umbilical 3 minimum bending radius, and do not destroy umbilical 3；
S6, driven by described actuator 6 umbilical 3 is loaded by a small margin, analyze the strain gathered and change over
Curve, complete whole test system is carried out preliminary debugging, after test request to be achieved, packet carry out experiment；
S7, setting the fltting speed of described actuator 6, along with the continuous increase of load, umbilical 3 is gradually to described arc plate 2
Bending, records data situation and the deformation state of Taking Pictures recording armouring wire of each foil gauge, until reaching regulation
Alternating bending frequency.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (6)
1. an ocean engineering compliance umbilical alternating bending test device, it is characterised in that: include that anvil block, described anvil block include
Umbilical curved support plates and two the arc plates being positioned in described umbilical curved support plates, between the cambered surface of two described arc plates relatively
Arranging, described umbilical curved support plates is provided with the anchor tip I connecting umbilical, and described anchor tip I is positioned at two described arcs
Between the cambered surface of plate, the axis of described anchor tip I is positioned at the axis institute of two described arc plates planar, described test device
Also include driving umbilical driving means and fixing described umbilical around the alternating bending of described anchor tip I in described plane curved
The support platform of bent gripper shoe.
A kind of ocean engineering compliance umbilical alternating bending test device the most according to claim 1, it is characterised in that: institute
State driving means and include that actuator, described a kind of ocean engineering compliance umbilical alternating bending test device also include ratchet,
Described actuator one end is connected with swivel I by connecting rod I, and described actuator can be around described swivel I in institute
Rotate in stating plane,
The other end of described actuator is connected with swivel II by connecting rod II, and described actuator can be around described swivel
II rotates in described plane,
The axis of described connecting rod I and described connecting rod II is respectively positioned in described plane,
Described ratchet is connected with described support platform by pawl seat, and described pawl seat is provided with and prevents described ratchet along locked direction
The stop block rotated, the center of rotation of described ratchet is fixedly connected with crank, and the other end of described crank is provided with can be along described company
The sliding sleeve that extension bar II slides, the axis of described sliding sleeve is parallel to the Plane of rotation of described ratchet,
The other end of described swivel I is provided with the anchor tip II being connected with umbilical,
The other end of described swivel II is fixing with described support platform to be connected,
Under duty, described actuator is stretched, and drives described sliding sleeve along the slip of described connecting rod II, thus changes described start
The direction that device swings, and then drive umbilical alternating bending.
A kind of ocean engineering compliance umbilical alternating bending test device the most according to claim 1, it is characterised in that: institute
On the outer of the horizontal cross-section stating arc plate, radius of curvature is 3 meters.
A kind of ocean engineering compliance umbilical alternating bending test device the most according to claim 1, it is characterised in that: institute
The interior edge stating arc plate is provided with the supporting girder structure being connected with described umbilical curved support plates.
A kind of ocean engineering compliance umbilical alternating bending test device the most according to claim 2, it is characterised in that: institute
Stating and be additionally provided with vertical track device on support platform, described vertical track device has vertical guide slot, is provided with in described vertical guide slot
Ring, the both sides of described ring have the connection post that the cell wall with described vertical guide slot is connected, described connecting rod I one end and described start
Device connects, and the other end is connected through described ring with described swivel I,
Under duty, described ring and can be rotated against along the slip of described vertical guide slot by described connection post.
6. an ocean engineering compliance umbilical alternating bending method of testing, it is characterised in that there are following steps:
S1, design test device as described in claim 1-5 any claim；
S2, being connected by umbilical joint is vertical with described anchor tip I one end of umbilical, the other end of umbilical is connect by umbilical
Head is connected with described anchor tip II；
S3, open on the bus of the umbilical nearest apart from described arc plate take multiple dense arrangement, can be by the armouring within umbilical
Steel wire spills and can accommodate the opening of foil gauge, is bonded on described armouring wire by described foil gauge by glue, uses simultaneously
The winding displacement one end being connected to described foil gauge is fixed in umbilical by adhesive tape, and the described winding displacement other end is connected with acquisition system, real
Existing stress-strain data real-time Transmission；
S4, at the axial trisection of umbilical one, open the rectangular window mouth taking about diameter 1/3rd, convenient observe alternating bending
The Displacement Cumulative state change of armouring wire in journey；
S5, adjust the position of described sliding sleeve, and then change the amplitude peak that described actuator swings so that it is can be minimum in umbilical
Work in bending radius, and do not destroy umbilical；
S6, by described actuator drive umbilical is loaded by a small margin, analyze gather the time dependent curve of strain,
Completing whole test system is carried out preliminary debugging, after test request to be achieved, experiment is carried out in packet；
S7, setting the fltting speed of described actuator, along with the continuous increase of load, umbilical is gradually to described arc plate benging, note
Record data situation and the deformation state of Taking Pictures recording armouring wire of each foil gauge, until reaching the alternating bending of regulation
Number of times.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814699.4A CN106168558B (en) | 2016-09-09 | 2016-09-09 | A kind of ocean engineering flexibility umbilical alternating bending test device and method |
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| CN201610814699.4A CN106168558B (en) | 2016-09-09 | 2016-09-09 | A kind of ocean engineering flexibility umbilical alternating bending test device and method |
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Cited By (6)
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|---|---|---|---|---|
| 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 |
| CN108287115A (en) * | 2018-02-13 | 2018-07-17 | 大连理工大学 | The test method and device that non-adherent umbilical armor prestressing force influences bending property |
| CN110108582A (en) * | 2019-04-30 | 2019-08-09 | 北京碧泉盛达技术检测有限公司 | A kind of steel wire alternating bending test device and steel wire detection method |
| CN110553938A (en) * | 2019-09-11 | 2019-12-10 | 哈尔滨工程大学 | Device and method for testing bending hysteresis effect scaling model experiment of marine flexible pipe cable |
| CN112903167A (en) * | 2021-02-05 | 2021-06-04 | 航天科工空间工程发展有限公司 | Cable swing testing device |
| CN113804564A (en) * | 2021-08-23 | 2021-12-17 | 中山大学 | Method for analyzing cumulative plastic deformation of ultra-duplex stainless steel pipe of umbilical cable |
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| 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 |
| CN108287115A (en) * | 2018-02-13 | 2018-07-17 | 大连理工大学 | The test method and device that non-adherent umbilical armor prestressing force influences bending property |
| CN110108582A (en) * | 2019-04-30 | 2019-08-09 | 北京碧泉盛达技术检测有限公司 | A kind of steel wire alternating bending test device and steel wire detection method |
| CN110108582B (en) * | 2019-04-30 | 2021-09-10 | 北京碧泉盛达技术检测有限公司 | Steel wire repeated bending test device and steel wire detection method |
| CN110553938A (en) * | 2019-09-11 | 2019-12-10 | 哈尔滨工程大学 | Device and method for testing bending hysteresis effect scaling model experiment of marine flexible pipe cable |
| CN110553938B (en) * | 2019-09-11 | 2022-03-08 | 哈尔滨工程大学 | Device and method for testing bending hysteresis effect scaling model experiment of marine flexible pipe cable |
| CN112903167A (en) * | 2021-02-05 | 2021-06-04 | 航天科工空间工程发展有限公司 | Cable swing testing device |
| CN112903167B (en) * | 2021-02-05 | 2022-07-01 | 航天科工空间工程发展有限公司 | Cable swing testing device |
| CN113804564A (en) * | 2021-08-23 | 2021-12-17 | 中山大学 | Method for analyzing cumulative plastic deformation of ultra-duplex stainless steel pipe of umbilical cable |
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| Publication number | Publication date |
|---|---|
| CN106168558B (en) | 2019-04-12 |
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