CN104354829B - Fatigue testing device of ocean platform - Google Patents
Fatigue testing device of ocean platform Download PDFInfo
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- CN104354829B CN104354829B CN201410558718.2A CN201410558718A CN104354829B CN 104354829 B CN104354829 B CN 104354829B CN 201410558718 A CN201410558718 A CN 201410558718A CN 104354829 B CN104354829 B CN 104354829B
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Abstract
The invention discloses a fatigue testing device of an ocean platform. The fatigue testing device comprises an ocean platform structure model, four layers of annular steel plates, a host computer and a sensor, wherein the ocean platform structure model is arranged in the position of the circle center of the four layers of the annular steel plates; the four layers of the annular steel plates consist of a base, a sea flow layer experiment table, a sea wave experiment table and a sea wind layer experiment platform from bottom to top in sequence; each layer is connected with other layers through four steel columns which are uniformly distributed in the circumference; positioning mounting holes are formed at every other 22.5 degrees in each of three layers, namely the sea flow layer experiment table, the sea wave experiment table and the sea wind layer experiment platform, in the circumferential direction; the positioning mounting holes in the three layers are in one-to-one correspondence; a sea flow layer power output device, a sea wave layer power output device and a sea wind layer power output device are respectively arranged on the positioning mounting holes of the sea flow layer experiment table, the sea wave experiment table and the sea wind layer experiment platform; the host computer is used for controlling the power output device and used for acquiring and processing real-time detection signals of the sensor.
Description
Technical field
The invention belongs to the technical field that marine energy utilizes, more particularly to the fatigue of a kind of ocean platform
Experimental provision.
Background technology
Now, energy problem has become as a global problem, and oil is as most crucial strategy
The property resource most important thing especially.Although China's land surface is vast, but the exploitation of onshore oil field mistake the most
Yield peak value, most onshore oil field yield alreadys more than the 70% of workable reserves, along with greatly
Golden period has been spent in the exploitation of continental shelf petroleum resources, and the development of resources towards marine field the most progressively becomes
Inexorable trend for the development of world today's offshore petroleum industry.Therefore the base utilized as marine resources exploitation
Plinth facility, construction and the detection technique of ocean platform are of increased attention.
Ocean platform is the basic facility of marine development of resources, is also the base of offshore production operation and life
Ground, therefore the safety problem of ocean platform is also the primary factor in Offshore Platform Design.Ocean platform is tied
Environment residing for structure is sufficiently complex and severe, and the superiors have Caulis Piperis Kadsurae to attack, and there is sea laps in intermediate layer,
Bottom has ocean current to corrode, and under the influence of it is many, the degradation resistance of offshore platform structure is clearly.
The failure damage of offshore platform structure, not only results in direct heavy economic losses and casualties, also
To be likely to result in serious environmental pollution and social influence, therefore the actual time safety for ocean platform detects
Just seem most important.The present invention is to design a set of fatigue test device to detect offshore platform model
And analyze, thus the safety detection and accident diagnosis for real ocean platform provides corresponding empirical theory to prop up
Hold.
Summary of the invention
The technology of the present invention solves problem: overcome the deficiencies in the prior art, it is provided that a kind of ocean platform
Fatigue test device, offshore platform model can be detected and analyze, thus be that real ocean is put down by it
The safety detection of platform and accident diagnosis provide corresponding empirical theory support.
The technical solution of the present invention is: the fatigue test device of this ocean platform, and it includes basis
The scaled offshore platform structure model of actual ocean platform, four layers of annular steel plate, host computer,
Sensor；Offshore platform structure model is placed on the home position of four layers of annular steel plate, these four layers of annulus
Shape steel plate sequentially consists of: pedestal, ocean current layer laboratory table, wave layer laboratory table, Caulis Piperis Kadsurae layer are tested
Platform, every layer is connected with other layer by four steel columns the most equally distributed in outside, and pedestal passes through
Pedestal installing hole thereon is fixed to ground, and ocean current layer laboratory table, wave layer laboratory table, Caulis Piperis Kadsurae layer are tested
Platform this every layer of three layers arranges location and installation hole and this location of three layers peace at circumferencial direction every 22.5 degree
Dress hole one_to_one corresponding, places ocean current layer PTO on the location and installation hole of ocean current layer laboratory table,
The location and installation hole of wave layer laboratory table is placed wave layer PTO, in Caulis Piperis Kadsurae layer laboratory table
Location and installation hole on place Caulis Piperis Kadsurae layer PTO；Sensor is arranged on offshore platform structure model
With on four layers of annular steel plate；PC control ocean current layer PTO, wave layer power output dress
Put, Caulis Piperis Kadsurae layer PTO, and gather the real time detection signal of sensor and process.
Due to ocean current layer PTO, wave layer PTO, Caulis Piperis Kadsurae layer PTO
Installation site can be selected freely, by between every layer of PTO according to the position in location and installation hole
Different angle combinations simulates the ripple of Various Seasonal, wave, the change at stream phase angle, it is possible to sea
Ocean platform model detects and analyzes, thus the safety detection and accident diagnosis for real ocean platform carries
For corresponding empirical theory support.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fatigue test device of the ocean platform according to the present invention；
Fig. 2 is the ocean current layer PTO of the fatigue test device of the ocean platform according to the present invention
Structural representation；
Fig. 3 is the wave layer PTO of the fatigue test device of the ocean platform according to the present invention
Structural representation；
Fig. 4 is the Caulis Piperis Kadsurae layer PTO of the fatigue test device of the ocean platform according to the present invention
Structural representation.
Detailed description of the invention
As it is shown in figure 1, the fatigue test device of this ocean platform, it includes putting down according to actual ocean
Offshore platform structure model 5, four layers of annular steel plate, host computer, sensor that platform is scaled；
Offshore platform structure model is placed on the home position of four layers of annular steel plate, these four layers of annular steel plates from
Under supreme be followed successively by: pedestal 1, ocean current layer laboratory table 2, wave layer laboratory table 3, Caulis Piperis Kadsurae layer laboratory table 4,
Every layer is connected with other layer by four steel columns 10 the most equally distributed in outside, and pedestal passes through it
On pedestal installing hole be fixed to ground, ocean current layer laboratory table, wave layer laboratory table, Caulis Piperis Kadsurae layer laboratory table
This every layer of three layers arranges location and installation hole 6 and this location and installation of three layers at circumferencial direction every 22.5 degree
Hole one_to_one corresponding, places ocean current layer PTO 9 on the location and installation hole of ocean current layer laboratory table,
The location and installation hole of wave layer laboratory table is placed wave layer PTO 8, tests at Caulis Piperis Kadsurae layer
Caulis Piperis Kadsurae layer PTO 7 is placed on the location and installation hole of platform；Sensor is arranged on offshore platform structure
On model and four layers of annular steel plate；PC control ocean current layer PTO, wave layer power are defeated
Go out device, Caulis Piperis Kadsurae layer PTO, and gather the real time detection signal of sensor and process.
Due to ocean current layer PTO, wave layer PTO, Caulis Piperis Kadsurae layer PTO
Installation site can be selected freely, by between every layer of PTO according to the position in location and installation hole
Different angle combinations simulates the ripple of Various Seasonal, wave, the change at stream phase angle, it is possible to sea
Ocean platform model detects and analyzes, thus the safety detection and accident diagnosis for real ocean platform carries
For corresponding empirical theory support.
It addition, the quantity of pedestal installing hole is four, circumferentially it is uniformly distributed.
It addition, this every layer of three layers of ocean current layer laboratory table, wave layer laboratory table, Caulis Piperis Kadsurae layer laboratory table is being justified
Circumferential direction arranges three location and installation holes 6 every 22.5 degree, and these three location and installation pore size distribution is equilateral three
Dihedral.
It addition, as in figure 2 it is shown, ocean current layer PTO is constant force hydraulic means, it includes filtering
Device 81, unidirectional quantitative hydraulic pump 82, three-position four-way electromagnetic directional valve 88, single-acting formula hydraulic cylinder 814,
Hydraulic oil in quantitative hydraulic pump performance loop in filter enters this loop, 3-position 4-way electromagnetic switch
The left position work of valve, causes single-acting formula hydraulic cylinder works to export a constant force, single-acting formula hydraulic cylinder
The right position work of the rear three-position four-way electromagnetic directional valve that worked, performance loop has unloaded one-off.
It addition, as it is shown on figure 3, wave layer PTO is sinusoidal hydraulic means, it includes filtering
Device 81, unidirectional quantitative hydraulic pump 82, direct-acting overflow valve the 83, first solenoid directional control valve the 84, second electricity
Magnetic reversal valve 813, pilot operated compound relief valve 85, proportional pressure control valve 86, current amplifier 87,3-position 4-way
Solenoid directional control valve the 88, first pressure switch the 89, second pressure switch 810, stroke valve 811, tune
Speed valve 812, single-acting formula hydraulic cylinder 814, check valve 815；When being in operating mode of fast forward, oil-feed
Time fuel tank in hydraulic oil through filter, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve enter
The left chamber of single-acting formula hydraulic cylinder, during oil return hydraulic oil through the right chamber of single-acting formula hydraulic cylinder, stroke valve,
Three-position four-way electromagnetic directional valve, the left chamber of single-acting formula hydraulic cylinder, direct-acting overflow valve is as relief valve；
When being in slow-motion mode of operation, during oil-feed, the hydraulic oil in fuel tank is through filter, unidirectional quantitative hydraulic
Pump, three-position four-way electromagnetic directional valve enter the left chamber of single-acting formula hydraulic cylinder, and during oil return, hydraulic oil is through single
The right chamber of acting hydraulic cylinder enters flow speed control valve, fuel tank；When being in work and entering mode of operation, work as single-acting
After the piston rod of formula hydraulic cylinder arrives beaer, the left chamber of single-acting formula hydraulic cylinder is overstock, and the first pressure continues
Electrical equipment action, current signal inputs through current amplifier, first, second solenoid directional control valve bottom respectively,
Right position works, and during oil-feed, the hydraulic oil in fuel tank is through filter, unidirectional quantitative hydraulic pump, 3-position 4-way
Solenoid directional control valve enters the left chamber of single-acting formula hydraulic cylinder, and during oil return, hydraulic oil is through single-acting formula hydraulic cylinder
Right chamber enter the second solenoid directional control valve, fuel tank, the remote control mouth of pilot operated compound relief valve is connected to proportional overflow
Valve, the oil pressure relief of regulation direct-acting overflow valve more than the oil pressure relief of pilot operated compound relief valve, first, the
Two solenoid directional control valves work in position the next, right respectively；When being in rewind mode of operation, fuel tank during oil-feed
In hydraulic oil enter through filter, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve, check valve
Entering the right chamber of single-acting formula hydraulic cylinder, during oil return, hydraulic oil enters three through the left chamber of single-acting formula hydraulic cylinder
Position four-way electromagnetic reversing valve, fuel tank, the remote control mouth of pilot operated compound relief valve disconnects with proportional pressure control valve, first,
Second solenoid directional control valve works in position upper, left respectively, after piston rod returns original position, and single-acting formula
The right chamber of hydraulic cylinder is overstock, the second pressure switch action, and sinusoidal hydraulic means quits work, and returns to
Initial condition.
Specifically, this sinusoidal hydraulic means has four kinds of mode of operations, i.e. F.F., slow-motion, work are entered, rewind
Pattern.According to the sinusoidal hydraulic means shown in Fig. 3, detailed duty is as follows:
A. F.F.: press start button, electric magnet 1YA is energized, and the left position of three position four-way directional control valve 88 works,
Form differential circuit to realize F.F..
In-line: fuel tank → filter 81 → unidirectional quantitative hydraulic pump 82 → three position four-way directional control valve 88 →
The left chamber of hydraulic cylinder 814
Oil return line: the right chamber of hydraulic cylinder → left chamber of stroke valve 811 → three position four-way directional control valve, 88 → hydraulic cylinder
During this F.F., overflow valve 83 plays relief valve effect, owing to using dosing pump, so hydraulic cylinder
Piston rod at the uniform velocity advances.
B. slow-motion: when hydraulic cylinder piston rod reaches predetermined stroke, depression stroke valve 811, and its right position works.
In-line: fuel tank → filter 81 → unidirectional quantitative hydraulic pump 82 → three position four-way directional control valve 88 →
The left chamber of hydraulic cylinder
Oil return line: the right chamber of hydraulic cylinder → flow speed control valve 812 → fuel tank
Owing to the effect of flow speed control valve realizes slow-motion.
C. work is entered: after hydraulic cylinder piston rod arrives beaer, and the left chamber of hydraulic cylinder is overstock, the first pressure relay
Device 89 action, now 3YA, 4YA action simultaneously, I current signal inputs through current amplifier, the
One, the second solenoid directional control valve 84,813 position the next, right work respectively.For ensureing that at P, pressure can enter
Row regulation, under conditions of ensureing oil circuit safety, regulation direct-acting overflow valve 83 oil pressure relief is consistently greater than
The oil pressure relief of pilot operated compound relief valve 85.
In-line: fuel tank → filter 1 → unidirectional quantitative hydraulic pump, 82 → three position four-way directional control valve, 88 → liquid
The left chamber of cylinder pressure
Oil return line: hydraulic cylinder right chamber → the second solenoid directional control valve 813 → fuel tank
When work is entered, at P, pressure is determined by overflow valve 85, and 85 is pilot operated compound relief valve, its set pressure by
The switching value size of its pilot valve determines, the remote control mouth of overflow valve 85 is connected to proportional pressure control valve 86,
Input current carrys out the spillway discharge size of control valve 86 thus the spillway discharge of control valve 85 is big through current amplifier
Little, it is finally reached the purpose of pressure at regulation P, so we can be by the change of programming Control electric current
Obtain the pressure being continually changing of hydraulic cylinder output.
D. rewind: press fast backward button, electric magnet 2YA is energized, 3YA power-off, 4YA power-off, three four
The work of logical reversal valve 88 right position, the second reversal valve 813 left position work, the first upper work of reversal valve 84,
Now, the remote control mouth of overflow valve 85 disconnects with proportional pressure control valve 86.
In-line: fuel tank → filter 81 → unidirectional quantitative hydraulic pump 82 → three position four-way directional control valve 88 →
The right chamber of check valve 815 → hydraulic cylinder
Oil return line: the left chamber of hydraulic cylinder → three position four-way directional control valve 88 → fuel tank
After piston rod returns original position, the right chamber of hydraulic cylinder is overstock, the second pressure switch 810 action,
Whole device quits work, and returns to initial condition, system unloaded.
It addition, as shown in Figure 4, Caulis Piperis Kadsurae layer PTO is impulsive force pneumatic means, and it includes gas
Motor 71, solenoid directional control valve 72, pressure switch 73, cylinder 74, after unlatching, solenoid directional control valve
Left position works, and is the pressurization of whole performance loop with seasonal epidemic pathogens motor operations, pressure when the pressure reaches a predetermined value
Relay works, and causes cylinder moment to export a controlled impulsive force, and then the right side changed to by solenoid directional control valve
Position work, whole performance loop unloads, completes one-off.
It addition, sensor includes strain rosette, heat sensitive sensor, acoustic emission detector.Each sensor
Particular location is not fixed, and can carry out free arrangement according to requirement of experiment.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma limit
System, any simple modification, equivalent that above example is made by the technical spirit of every foundation present invention become
Change and modify, the most still belonging to the protection domain of technical solution of the present invention.
Claims (7)
1. the fatigue test device of an ocean platform, it is characterised in that: it includes according to actual ocean
The scaled offshore platform structure model (5) of platform, four layers of annular steel plate, host computer,
Sensor；Offshore platform structure model is placed on the home position of four layers of annular steel plate, and these are four years old
Layer annular steel plate sequentially consists of: pedestal (1), ocean current layer laboratory table (2), sea
Wave layer laboratory table (3), Caulis Piperis Kadsurae layer laboratory table (4), every layer of pass through outside four are at circumference
Upper equally distributed steel column (10) is connected with other layer, and pedestal passes through pedestal installing hole thereon
It is fixed to ground, ocean current layer laboratory table, wave layer laboratory table, Caulis Piperis Kadsurae layer laboratory table these three layers
Every layer arranges location and installation hole (6) and this location of three layers peace at circumferencial direction every 22.5 degree
Dress hole one_to_one corresponding, places the output of ocean current layer power on the location and installation hole of ocean current layer laboratory table
Device (9), places wave layer PTO on the location and installation hole of wave layer laboratory table
(8), the location and installation hole of Caulis Piperis Kadsurae layer laboratory table is placed Caulis Piperis Kadsurae layer PTO (7)；
Sensor is arranged on offshore platform structure model and four layers of annular steel plate；PC control sea
Fluid layer PTO, wave layer PTO, Caulis Piperis Kadsurae layer PTO, and
Gather the real time detection signal of sensor and process.
The fatigue test device of ocean platform the most according to claim 1, it is characterised in that: described
The quantity of pedestal installing hole is four, is circumferentially uniformly distributed.
The fatigue test device of ocean platform the most according to claim 1 and 2, it is characterised in that:
This every layer of three layers of described ocean current layer laboratory table, wave layer laboratory table, Caulis Piperis Kadsurae layer laboratory table is being justified
Circumferential direction arranges three location and installation holes (6) every 22.5 degree, and these three location and installation hole is divided
Cloth is equilateral triangle.
The fatigue test device of ocean platform the most according to claim 1, it is characterised in that: described
Ocean current layer PTO is constant force hydraulic means, and it includes filter (81), unidirectional fixed
Amount hydraulic pump (82), three-position four-way electromagnetic directional valve (88), single-acting formula hydraulic cylinder (814),
Hydraulic oil in unidirectional quantitative hydraulic pump performance loop in filter enters this loop, three four
The left position work of electric change valve, causes single-acting formula hydraulic cylinder works to export a constant force,
Single-acting formula hydraulic cylinder works complete after three-position four-way electromagnetic directional valve right position work, work back
Road has unloaded one-off.
The fatigue test device of ocean platform the most according to claim 1, it is characterised in that: described
Wave layer PTO is sinusoidal hydraulic means, and it includes filter (81), unidirectional fixed
Amount hydraulic pump (82), direct-acting overflow valve (83), the first solenoid directional control valve (84), the
Two solenoid directional control valves (813), pilot operated compound relief valve (85), proportional pressure control valve (86), electricity
Stream amplifier (87), three-position four-way electromagnetic directional valve (88), the first pressure switch (89),
Second pressure switch (810), stroke valve (811), flow speed control valve (812), single-acting formula
Hydraulic cylinder (814), check valve (815)；When being in operating mode of fast forward, oil during oil-feed
Hydraulic oil in case enters through filter, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve
Enter the left chamber of single-acting formula hydraulic cylinder, during oil return hydraulic oil through the right chamber of single-acting formula hydraulic cylinder,
Stroke valve, three-position four-way electromagnetic directional valve, the left chamber of single-acting formula hydraulic cylinder, Direct Action Type overflow
Valve is as relief valve；When being in slow-motion mode of operation, during oil-feed, the hydraulic oil in fuel tank passes through
Filter, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve enter single-acting formula hydraulic cylinder
Left chamber, during oil return hydraulic oil through the right chamber of single-acting formula hydraulic cylinder enter flow speed control valve, fuel tank；
When being in work and entering mode of operation, after the piston rod of single-acting formula hydraulic cylinder arrives beaer,
The left chamber of single-acting formula hydraulic cylinder is overstock, the first pressure switch action, and current signal is through electricity
Stream amplifier inputs, and position the next, the right work respectively of first, second solenoid directional control valve, during oil-feed
Hydraulic oil in fuel tank is through filter, unidirectional quantitative hydraulic pump, three-position four-way electromagnetic directional valve
Entering the left chamber of single-acting formula hydraulic cylinder, during oil return, hydraulic oil is through the right side of single-acting formula hydraulic cylinder
Chamber enters the second solenoid directional control valve, fuel tank, and the remote control mouth of pilot operated compound relief valve is connected to ratio and overflows
Stream valve, the oil pressure relief of regulation direct-acting overflow valve is more than the oil pressure relief of pilot operated compound relief valve,
First, second solenoid directional control valve works in position the next, right respectively；When being in rewind mode of operation
Time, during oil-feed, the hydraulic oil in fuel tank is through filter, unidirectional quantitative hydraulic pump, 3-position 4-way
Solenoid directional control valve, check valve enter the right chamber of single-acting formula hydraulic cylinder, and during oil return, hydraulic oil passes through
The left chamber of single-acting formula hydraulic cylinder enters three-position four-way electromagnetic directional valve, fuel tank, pilot-operated type overflow
The remote control mouth of valve and proportional pressure control valve disconnect, first, second solenoid directional control valve respectively upper,
Left position works, and after piston rod returns original position, the right chamber of single-acting formula hydraulic cylinder is overstock, the
Two pressure switch actions, sinusoidal hydraulic means quits work, and returns to initial condition.
The fatigue test device of ocean platform the most according to claim 1, it is characterised in that: described
Caulis Piperis Kadsurae layer PTO is impulsive force pneumatic means, and it includes gas motor (71), electromagnetism
Reversal valve (72), pressure switch (73), cylinder (74), after unlatching, electromagnetic switch
The left position work of valve, is the pressurization of whole performance loop with seasonal epidemic pathogens motor operations, when pressure reaches pre-
Pressure switch work during definite value, causes cylinder moment to export a controlled impulsive force, then
The work of right position changed to by solenoid directional control valve, and whole performance loop unloads, completes one-off.
The fatigue test device of ocean platform the most according to claim 1, it is characterised in that: described
Sensor includes strain rosette, heat sensitive sensor, acoustic emission detector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410558718.2A CN104354829B (en) | 2014-10-20 | 2014-10-20 | Fatigue testing device of ocean platform |
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| CN201410558718.2A CN104354829B (en) | 2014-10-20 | 2014-10-20 | Fatigue testing device of ocean platform |
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| CN103991509B (en) * | 2014-04-30 | 2016-10-05 | 浙江海洋学院 | A kind of detection device |
| CN114935444B (en) * | 2022-07-25 | 2022-10-28 | 自然资源部第一海洋研究所 | Auxiliary device is vibrate in ocean data analysis experiment research |
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| US7963241B2 (en) * | 2008-02-19 | 2011-06-21 | Nagan Srinivasan | Dry tree semi-submersible platform for harsh environment and ultra deepwater applications |
| CN101615215B (en) * | 2009-08-05 | 2012-05-09 | 中国海洋石油总公司 | Design method for simplifying fatigue for semi-submersible type platform structure |
| US8764346B1 (en) * | 2010-06-07 | 2014-07-01 | Nagan Srinivasan | Tension-based tension leg platform |
| KR101434153B1 (en) * | 2012-08-29 | 2014-08-27 | 삼성중공업 주식회사 | Semi-submissible type platform |
| CN103674753B (en) * | 2013-12-09 | 2015-12-23 | 昆明理工大学 | The test platform of a kind of thermal shock and heat fatigue |
| CN204297024U (en) * | 2014-10-20 | 2015-04-29 | 中国海洋大学 | A kind of fatigue test device of ocean platform |
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