CN105588612B - A kind of jack-up unit wave loadings experimental data collector and method - Google Patents
A kind of jack-up unit wave loadings experimental data collector and method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of jack-up unit wave loadings experimental data collector and method, its technical scheme is that it includes：Pond (1), jack-up unit (2), ess-strain piece group (3), three shaft vibration acceleration transducers (4), acoustic emission sensor group (5), wave-height sensing device (6), data acquisition equipment (7), data processing display device (8).The present invention uses arranges multiple sensor arrangements simultaneously, multigroup experimental result value is can obtain in once experiment, and multiple experimental results can be mutually authenticated, experimental work amount is greatly reduced on the basis of experimental result reliability is ensured, the synchronous acquisition problem of each sensor can be ensured well, all environmental datas in experimentation are once completely collected, the precision of wave loadings experimental data collection is substantially increased, solves the problems such as experimental data error is big, manpower and materials waste in current wave loadings experiment.
Description
Technical field
The invention belongs to field of ocean engineering, more particularly to a kind of wave loadings data acquisition device and method.
Background technology
In ocean engineering construction, marine environment is very severe, often simultaneously by typhoon, wave, ocean current, sea ice, tide
The effect of nighttide and earthquake etc..The stability of marine jack-up unit, environmental suitability require higher, its complicated, cost
Costliness, external load and structural strength standard are difficult accurately to determine.Wave and current load are the control loads of offshore structures,
Very important effect is played to the cost, degree of safety and life-span of engineering.Therefore, accurate wave loadings calculate and rational strong
Degree is assessed particularly important in the jack-up unit design phase.
In conventional wave loadings experiment, what is mainly used is one chip ess-strain piece acquisition method, because being tested
Factors in journey influence, and cause the experimental data error that collects larger, and to ensure that requirement of experiment need to be carried out largely
Repeated checking test, manpower and materials waste serious.And vibrated in experimentation by towing equipment, the whirlpool under Coupling effect
Rotation release influences and the influence of other kinds ambient noise, and the experimental data that one chip ess-strain piece collects can be caused to deposit
In larger error.The present invention proposes a kind of method that can accurately gather jack-up unit wave loadings experimental data, for not
The data acquisition of the self-elevating ocean platform wave loadings experiment of same specification provides guide for method, has important theory significance
And engineering application value.
The content of the invention
The purpose of the present invention is：A kind of jack-up unit wave loadings experimental data collector and method are provided, improved
The precision of wave loadings experimental data collection, solves in current wave loadings experiment that experimental data error is big, manpower and materials
The problems such as waste.
The technical scheme is that：A kind of jack-up unit wave loadings experimental data collector, it includes：Pond
(1), jack-up unit spud leg (2), ess-strain piece group (3), three shaft vibration acceleration transducers (4), acoustic emission sensor group
(5), wave-height sensing device (6), data acquisition equipment (7), data processing display device (8)；
The pond (1), which is used to simulate, produces the ocean wave loadings environment such as wave, ocean current；
The jack-up unit spud leg (2) is positioned in pond, for simulating all kinds of platform legs in ocean, and can be
The horizontal multi-direction motion in the pond (1) under applied external force；
The ess-strain piece group (3) is fixed on the dynamometer link surface of the jack-up unit spud leg (2), for measuring reality
Environmental load signal during testing suffered by the jack-up unit spud leg (2), and single ess-strain piece in group is adopted
The environmental load signal of collection, it is sent respectively to the data acquisition equipment (7)；
The three shaft vibrations acceleration transducer (4) is fixed on the dynamometer link bottom position of the jack-up unit spud leg (2)
Put, for the vibration acceleration time domain response of the jack-up unit spud leg (2) during measurement experiment, and by gathered when
Domain response signal is sent to the data acquisition equipment (7)；
The acoustic emission sensor group (5) is fixed on the upper surface of the jack-up unit spud leg (2), is tested for gathering
During ambient noise signal, provide support for later data noise reduction process, and the ambient noise signal gathered is sent
Give the data acquisition equipment (7)；
The wave-height sensing device (6) is fixed in pond, and parallel with the jack-up unit spud leg (2), for gathering
In good time wave height signal during measurement experiment, and the wave height signal gathered is sent to the data acquisition equipment (7)；
The data acquisition equipment (7) is used for the single ess-strain piece transmission for collecting the ess-strain piece group (3)
Environmental load data-signal, the time domain response signal of three shaft vibrations acceleration transducer (4) transmission, the voice sending sensor
The ambient noise signal of the single acoustic emission sensor transmission of device group (5), the wave height signal of wave-height sensing device (6) transmission,
And the form for adapting to the data processing display device (8) is converted the signals into, it is sent to the data processing and shows and sets
Standby (8)；
The data processing display device (8) is used for the ring after treatment for transmitting the data acquisition equipment (7)
Border payload data signal data, time domain response signal data, ambient noise signal data, wave height signal data, further processing
Afterwards, show.
Further, the ess-strain piece group (3) includes 3 groups of ess-strain pieces, between every group of ess-strain piece
Vertical spacing is unequal, and every group of ess-strain piece is made up of two ess-strain pieces, and two ess-strain pieces use 90 degree of half-bridges
Formula paster method is fixed.
Further, the jack-up unit is removed before the ess-strain piece in the ess-strain piece group (3) is fixed
The greasy dirt and iron filings on the dynamometer link surface of spud leg (2), water-proofing treatment is done after fixed.
Further, when the acoustic emission sensor group (5) is fixed on jack-up unit spud leg (2) upper surface,
Between the emission sensor of the acoustic emission sensor group (5) and the jack-up unit spud leg (2) upper surface, filling coupling
Agent；
Further, the sound emission that the data processing display device (8) transmits the data acquisition equipment (7) passes
Multiple ambient noise signal data of sensor group (5) transmission carry out complete collection output, obtain final complete effective environment and make an uproar
Acoustical signal data.
Further, the ess-strain that the data processing display device (8) transmits the data acquisition equipment (7)
Multiple environmental load data-signals of piece group (3) transmission, respectively according to the distance between 3 groups of ess-strain pieces Δ L1, Δ L2 and
Δ L1+ Δ L2, carried with three groups of different experiments results are calculated in once testing, obtaining final effective three different environment
Lotus signal data.
A kind of method of jack-up unit wave loadings experimental data collector, it is characterised in that it includes following step
Suddenly：
Simulation produces wave, ocean current, ocean wave loadings environment in pond；
Jack-up unit spud leg is placed in pond, jack-up unit spud leg can be under applied external force in pond reclaimed water
Put down multi-direction motion；
Ess-strain piece group is fixed on to the surface of the dynamometer link of jack-up unit spud leg；
Three shaft vibration acceleration transducers are fixed on to the dynamometer link bottom position of jack-up unit spud leg；
Acoustic emission sensor group is fixed on jack-up unit spud leg upper surface；
Wave-height sensing device is fixed in pond, and it is parallel with jack-up unit spud leg；
The environmental load signal that ess-strain piece group will be gathered, is sent to data acquisition equipment；
The vibration acceleration time domain response signal that three shaft vibration acceleration transducers will be gathered, is sent to data acquisition and sets
It is standby；
The ambient noise signal that acoustic emission sensor group will collect, it is sent to the data acquisition equipment；
Environmental load data-signal that data acquisition equipment transmits the ess-strain piece group of collection, three shaft vibration acceleration
The time domain response signal of sensor transmission, the ambient noise signal of acoustic emission sensor group transmission, the ripple of wave-height sensing device transmission
High RST, it is converted into adapting to the form of the data processing display device, is sent to the data processing display device；
Environmental load data signal data after treatment that data processing display device transmits data acquisition equipment,
Time domain response signal data, ambient noise signal data, wave height data signal data, further after processing, show.
Further, the acoustic emission sensor group that data processing display device transmits the data acquisition equipment transmits
Multiple ambient noise signal data carry out complete collection output, obtain final complete effective ambient noise signal data, be
Later stage carries out noise reduction process for the environmental load data-signal that ess-strain group collects.
Further, what the ess-strain piece group that data processing display device transmits the data acquisition equipment transmitted
Multiple environmental load data-signals, respectively according to the distance between 3 groups of ess-strain pieces Δ L1, Δ L2 and Δ L1+ Δ L2, same
Three groups of different experiments results are calculated in once testing, obtain final effective three different environmental load signal datas.
The present invention can obtain multigroup experimental result using multiple sensor arrangements are arranged simultaneously, in once experiment
Value, and multiple experimental results can be mutually authenticated, and experiment work is greatly reduced on the basis of experimental result reliability is ensured
Measure, the synchronous acquisition problem of each sensor can be ensured well, all environmental datas in experimentation are once complete
Collect, substantially increase the precision of wave loadings experimental data collection, solve and tested in the experiment of current wave loadings
The problems such as data error is big, and manpower and materials waste.
Brief description of the drawings
Fig. 1 is present system composition schematic diagram.
Embodiment
Embodiment 1：Referring to Fig. 1, a kind of jack-up unit wave loadings experimental data collector, it includes：Pond 1,
Jack-up unit spud leg 2, ess-strain piece group 3, three shaft vibration acceleration transducers 4, acoustic emission sensor group 5, wave height sensing
Device 6, data acquisition equipment 7, data processing display device 8.
The pond 1, which is used to simulate, produces the ocean wave loadings environment such as wave, ocean current.
The jack-up unit spud leg 2 is positioned in pond, for simulating all kinds of platform legs in ocean, and can be outside
The horizontal multi-direction motion in the pond 1 under portion's active force.
The ess-strain piece group 3 is fixed on the dynamometer link surface of the jack-up unit spud leg 2, for measurement experiment
Environmental load signal suffered by jack-up unit spud leg described in journey 2, and by single ess-strain piece is gathered in group ring
Border load signal, it is sent respectively to the data acquisition equipment 7；The ess-strain piece group 3 includes 3 groups of ess-strain pieces, often
Vertical spacing between group ess-strain piece is unequal, and every group of ess-strain piece is made up of two ess-strain pieces, two stress
Foil gauge is fixed using 90 degree of semibridge system paster methods；Described in ess-strain piece in the ess-strain piece group 3 removes before fixing
The greasy dirt and iron filings on the dynamometer link surface of jack-up unit spud leg 2, water-proofing treatment is done after fixed.
The three shaft vibrations acceleration transducer 4 is fixed on the dynamometer link bottom position of the jack-up unit spud leg 2, uses
The vibration acceleration time domain response of the jack-up unit spud leg 2 during measurement experiment, and the time domain response that will be gathered
Signal is sent to the data acquisition equipment 7.
The acoustic emission sensor group 5 is fixed on the upper surface of the jack-up unit spud leg 2, for gathering experimentation
In ambient noise signal, provide support for later data noise reduction process, and the ambient noise signal gathered is sent to institute
State data acquisition equipment 7；When the acoustic emission sensor group 5 is fixed on 2 upper surface of jack-up unit spud leg, in the sound
Between the emission sensor of emission sensor group 5 and the upper surface of jack-up unit spud leg 2, couplant is filled.
The wave-height sensing device 6 is fixed in pond, and parallel with the jack-up unit spud leg 2, is measured for gathering
In good time wave height signal in experimentation, and the wave height signal gathered is sent to the data acquisition equipment 7.
The data acquisition equipment 7 is used for the environment for the single ess-strain piece transmission for collecting the ess-strain piece group 3
Payload data signal, the time domain response signal that the three shaft vibrations acceleration transducer 4 transmits, the acoustic emission sensor group 5
The transmission of single acoustic emission sensor ambient noise signal, the wave height signal that the wave-height sensing device 6 transmits, and these are believed
Number it is converted into adapting to the form of the data processing display device 8, is sent to the data processing display device 8.
The environment after treatment that the data processing display device 8 is used to transmit the data acquisition equipment 7 carries
Lotus data signal data, time domain response signal data, ambient noise signal data, wave height signal data, further after processing, show
Show to come.The data processing display device 8 transmits the acoustic emission sensor group 5 that the data acquisition equipment 7 transmits more
Individual ambient noise signal data carry out complete collection output, obtain final complete effective ambient noise signal data.The number
The multiple environmental load data for transmitting the ess-strain piece group 3 that the data acquisition equipment 7 transmits according to processing display device 8 are believed
Number, respectively according to the distance between 3 groups of ess-strain pieces Δ L1, Δ L2 and Δ L1+ Δ L2, three are calculated in once experiment
Group different experiments result, obtain final effective three different environmental load signal datas.
Embodiment 2：A kind of jack-up unit wave loadings experimental data acquisition method, it comprises the following steps：
Simulation produces wave, ocean current, ocean wave loadings environment in pond；
Jack-up unit is fixed on the trailer above pond；
Ess-strain piece group is fixed on to the surface of the dynamometer link of jack-up unit；
Three shaft vibration acceleration transducers are fixed on to the dynamometer link bottom position of jack-up unit；
Acoustic emission sensor group is fixed on to the spud leg upper surface of jack-up unit；
Wave-height sensing device is fixed in pond, and it is parallel with the spud leg of jack-up unit；
The environmental load signal that ess-strain piece group will be gathered, is sent to data acquisition equipment；
The vibration acceleration time domain response signal that three shaft vibration acceleration transducers will be gathered, is sent to data acquisition and sets
It is standby；
The ambient noise signal that acoustic emission sensor group will collect, it is sent to the data acquisition equipment.
Environmental load data-signal that data acquisition equipment transmits the ess-strain piece group of collection, three shaft vibration acceleration
The time domain response signal of sensor transmission, the ambient noise signal of acoustic emission sensor group transmission, the ripple of wave-height sensing device transmission
High RST, it is converted into adapting to the form of the data processing display device, is sent to the data processing display device.
Environmental load data signal data after treatment that data processing display device transmits data acquisition equipment,
Time domain response signal data, ambient noise signal data, wave height data signal data, further after processing, show.
Multiple environment that the acoustic emission sensor group that data processing display device transmits the data acquisition equipment transmits
Noise signal data carry out complete collection and exported, and obtain final complete effective ambient noise signal data, being directed to for the later stage should
The environmental load data-signal that stress-strain group collects carries out noise reduction process.
Multiple environment that the ess-strain piece group that data processing display device transmits the data acquisition equipment transmits carry
Lotus data-signal, respectively according to the distance between 3 groups of ess-strain pieces Δ L1, Δ L2 and Δ L1+ Δ L2, in once testing
Three groups of different experiments results are calculated, obtain final effective three different environmental load signal datas.
Claims (9)
1. a kind of jack-up unit wave loadings experimental data collector, it is characterised in that it includes：Pond (1), jack up
Platform leg (2), ess-strain piece group (3), three shaft vibration acceleration transducers (4), acoustic emission sensor group (5), wave height pass
Sensor (6), data acquisition equipment (7), data processing display device (8)；
The pond (1), which is used to simulate, produces the ocean wave loadings environment such as wave, ocean current；
The jack-up unit spud leg (2) is positioned in pond, for simulating all kinds of platform legs in ocean, and can be in outside
The horizontal multi-direction motion in the pond (1) under active force；
The ess-strain piece group (3) is fixed on the dynamometer link surface of the jack-up unit spud leg (2), for measurement experiment
Environmental load signal suffered by jack-up unit spud leg described in journey (2), and single ess-strain piece in group is gathered
Environmental load signal, it is sent respectively to the data acquisition equipment (7)；
The three shaft vibrations acceleration transducer (4) is fixed on the dynamometer link bottom position of the jack-up unit spud leg (2), uses
The vibration acceleration time domain response of the jack-up unit spud leg (2) during measurement experiment, and the time domain gathered is rung
Induction signal is sent to the data acquisition equipment (7)；
The acoustic emission sensor group (5) is fixed on the upper surface of the jack-up unit spud leg (2), for gathering experimentation
In ambient noise signal, provide support for later data noise reduction process, and the ambient noise signal gathered is sent to institute
State data acquisition equipment (7)；
The wave-height sensing device (6) is fixed in pond, and parallel with the jack-up unit spud leg (2), is measured for gathering
In good time wave height signal in experimentation, and the wave height signal gathered is sent to the data acquisition equipment (7)；
The data acquisition equipment (7) is used for the environment for the single ess-strain piece transmission for collecting the ess-strain piece group (3)
Payload data signal, the time domain response signal of three shaft vibrations acceleration transducer (4) transmission, the acoustic emission sensor group
(5) ambient noise signal of single acoustic emission sensor transmission, the wave height signal of wave-height sensing device (6) transmission, and will
These signals are converted into adapting to the form of the data processing display device (8), are sent to the data processing display device
(8)；
The data processing display device (8) is used to carry the environment after treatment of the data acquisition equipment (7) transmission
Lotus data signal data, time domain response signal data, ambient noise signal data, wave height signal data, further after processing, show
Show to come.
A kind of 2. jack-up unit wave loadings experimental data collector as claimed in claim 1, it is characterised in that：It is described
Ess-strain piece group (3) includes 3 groups of ess-strain pieces, and the vertical spacing between every group of ess-strain piece is unequal, every group of stress
Foil gauge is made up of two ess-strain pieces, and two ess-strain pieces are fixed using 90 degree of semibridge system paster methods.
A kind of 3. jack-up unit wave loadings experimental data collector as claimed in claim 2, it is characterised in that：It is described
Ess-strain piece in ess-strain piece group (3) removes the oil on the dynamometer link surface of the jack-up unit spud leg (2) before fixing
Dirty and iron filings, water-proofing treatment is done after fixed.
A kind of 4. jack-up unit wave loadings experimental data collector as claimed in claim 1, it is characterised in that：It is described
When acoustic emission sensor group (5) is fixed on jack-up unit spud leg (2) upper surface, in the acoustic emission sensor group (5)
Emission sensor and the jack-up unit spud leg (2) upper surface between, fill couplant.
A kind of 5. jack-up unit wave loadings experimental data collector as claimed in claim 1, it is characterised in that：It is described
Multiple environment that the acoustic emission sensor group (5) that data processing display device (8) transmits the data acquisition equipment (7) transmits
Noise signal data carry out complete collection output, obtain final complete effective ambient noise signal data.
A kind of 6. jack-up unit wave loadings experimental data collector as claimed in claim 1, it is characterised in that：It is described
Multiple environment that the ess-strain piece group (3) that data processing display device (8) transmits the data acquisition equipment (7) transmits carry
Lotus data-signal, respectively according to the distance between 3 groups of ess-strain pieces Δ L1, Δ L2 and Δ L1+ Δ L2, in once testing
Three groups of different experiments results are calculated, obtain final effective three different environmental load signal datas.
7. a kind of a kind of method of jack-up unit wave loadings experimental data collector described in usage right requirement 1, its
It is characterised by, it comprises the following steps：
Simulation produces wave, ocean current, ocean wave loadings environment in pond；
Jack-up unit spud leg is placed in pond, jack-up unit spud leg can be horizontal more in pond under applied external force
Move in direction；
Ess-strain piece group is fixed on to the surface of the dynamometer link of jack-up unit spud leg；
Three shaft vibration acceleration transducers are fixed on to the dynamometer link bottom position of jack-up unit spud leg；
Acoustic emission sensor group is fixed on jack-up unit spud leg upper surface；
Wave-height sensing device is fixed in pond, and it is parallel with jack-up unit spud leg；
The environmental load signal that ess-strain piece group will be gathered, is sent to data acquisition equipment；
The vibration acceleration time domain response signal that three shaft vibration acceleration transducers will be gathered, is sent to data acquisition equipment；
The ambient noise signal that acoustic emission sensor group will collect, it is sent to the data acquisition equipment；
Environmental load data-signal that data acquisition equipment transmits the ess-strain piece group of collection, three shaft vibration acceleration sensings
The time domain response signal of device transmission, the ambient noise signal of acoustic emission sensor group transmission, the wave height letter of wave-height sensing device transmission
Number, it is converted into adapting to the form of the data processing display device, is sent to the data processing display device；
Environmental load data signal data after treatment that data processing display device transmits data acquisition equipment, time domain
Response signal data, ambient noise signal data, wave height data signal data, further after processing, show.
A kind of 8. jack-up unit wave loadings experimental data described in a kind of usage right requirement 1 as claimed in claim 7
The method of harvester, it is characterised in that the sound emission that the data processing display device transmits the data acquisition equipment
Multiple ambient noise signal data of sensor group transmission carry out complete collection output, obtain final complete effective ambient noise
Signal data, noise reduction process is carried out for the environmental load data-signal that ess-strain group collects for the later stage.
A kind of 9. jack-up unit wave loadings experimental data described in a kind of usage right requirement 1 as claimed in claim 7
The method of harvester, it is characterised in that the stress that the data processing display device transmits the data acquisition equipment should
Become multiple environmental load data-signals of piece group transmission, respectively according to the distance between 3 groups of ess-strain pieces Δ L1, Δ L2 and Δ
L1+ Δ L2, with three groups of different experiments results are calculated in once testing, obtain final effective three different environmental loads
Signal data.
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| CN109723091B (en) * | 2017-10-27 | 2024-02-20 | 中国海洋大学 | Experimental device for measuring wave current load of three spud legs of drilling platform |
| CN109572930B (en) * | 2019-01-31 | 2020-12-04 | 烟台中集来福士海洋工程有限公司 | Estimation method for flow load of semi-submersible platform |
| CN111060183B (en) * | 2019-12-13 | 2021-06-25 | 天津大学 | Method for measuring total weight of upper module of ocean platform |
| CN113110277B (en) * | 2021-04-13 | 2022-04-12 | 中国船舶科学研究中心 | Trailer system health status monitoring system |
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