CN107478406A - A kind of dismantled and assembled rocking plate type wave making system that can be applied to low temperature towing ice model tank - Google Patents
A kind of dismantled and assembled rocking plate type wave making system that can be applied to low temperature towing ice model tank Download PDFInfo
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- CN107478406A CN107478406A CN201710615689.2A CN201710615689A CN107478406A CN 107478406 A CN107478406 A CN 107478406A CN 201710615689 A CN201710615689 A CN 201710615689A CN 107478406 A CN107478406 A CN 107478406A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The present invention relates to a kind of dismantled and assembled rocking plate type wave making system that can be applied to low temperature towing ice model tank, including at least one wave maker, vertical support, horizontal stand, track support base and track.Each wave maker includes rocker, balance staff, servo drive system, seal box, bottom of pond basis steelframe；Servo drive system is placed in seal box, and two rocker balance staffs are connected by shaft coupling with the output shaft of double shaft-protruding type reductors respectively；Rocker balance staff stretches out seal box through dynamic sealing interface, is connected with the bearing being fixed on basic steelframe, and servo drive system drives rocker to swing by balance staff.It is fixedly connected between the bottom of pond basis steelframe of adjacent wave maker, it is ensured that the concentricity of each wave maker balance staff；Both sides are respectively fixedly connected with vertical support close to the basic steelframe of the wave maker of ice model tank pool wall position, are respectively fixed with track and track support base on both sides ice model tank pool wall top, vertical support is connected to track support base by horizontal stand.
Description
Technical field
The present invention relates to a kind of dismantled and assembled flap type wave generator that can be applied to low temperature towing ice model tank.
Background technology
With global warming, polar regions ice sheet gradually melts, and develops polar region You Bing marine sites natural resources and opens
Warding off ice channel turns into the focus of countries in the world concern., just must be accurate to ensure the safety of ice formation human being's production and navigation activity
Really hold ice formation marine environment feature and its effect to ocean engineering structure.Sea ice be the unique environment in Han Qu marine sites because
Element, is the important component of cold area's marine environment, and the control that ice load also often turns on cold area's ocean engineering structure carries
Lotus.It is the major impetus for moulding marginal ice zone sea ice form meanwhile wave is kinetic factor important in marine environment, wave
Power is the important environmental load on ocean engineering structure.In order to accurately be examined in the design process of cold area's ocean engineering structure
Consider environmental load, while effectively assess the performances such as rapidity, airworthiness and the maneuverability of ice navigation ship, must just carry out
The research of ice-wave and structural interaction.Because the physical process is sufficiently complex, the constitutive relation of sea ice material is not yet complete
Disclose, it is very big by theory analysis and the Numerical Method Study problem difficulty.Simultaneously as influence the ring of the physical process
Border factor is more, and true sea situation is complicated and changeable, causes to be difficult to study the problem by field observation method system.Therefore, open
Physical experiments are to study the effective ways of the interaction process in exhibition room.
Carry out the interaction model experiment of ice-wave and structure, it is necessary to simulate sea ice and ripple simultaneously during experiment
Wave.Wherein, ice engineering model test generally requires is carried out in low temperature pulls ice model tank, and wave model test is generally in ripple
Carry out in unrestrained tank.The key equipment of simulated waves is wave maker in wave flume, can be by often according to the difference for making ripple principle
The wave maker seen is divided into push-plate type, rocking plate type, rushes box and air type etc..Wherein, push-plate type wave maker is to pass through servo-drive system
Drive a two vertical plates to do piston type reciprocating motion in tank one end, so as to cause water level fluctuation to produce wave, generate the ripple of ripple
The high and cycle is determined by the stroke and reciprocating frequency of push pedal respectively.Flap type wave generator is driven by servo-drive system
One wobble plate produces wave, the wave height and cycle for generating ripple are put by wobble plate respectively around bottom rotating shaft reciprocally swinging so as to disturb the water surface
Width and hunting frequency determine.Plunger type wave generator is vertically to vibrate generation wave in the water surface by a casing, the box shape
It is the special cylindricality through design, generates ripple wave height and the cycle is determined by casing stroke and frequency.Air type wave maker is in tank
One section of region is closed in one end, the water surface is produced fluctuation so as to generate wave, generation ripple ginseng by adjusting seal case air pressure inside
Number can be changed by adjusting seal case inner valve, control pressure amplitude of variation and frequency.All kinds of wave makers act
By servomotor or servo-hydraulic control, by setting wave maker exercise duration, it can generate and meet wave parameter requirement
Each rule-like ripple, and meet setting wave spectral condition random wave.By the adjustment and design to wave maker structural shape,
The simulation to different wave direction wave propagations and superposition can also be realized, such as the snake type wave generator often used in ship towing basin
Deng.
To realize the interaction process of accurate simulation ice-wave and structure, it is necessary to by ice model experimental condition and ripple
Unrestrained experimental condition is combined, that is, possesses and possess the low temperature for making wave energy power towing ice model tank.At present, all kinds of wave makers are applied to normal
In water wave tank, ordinary water wave flume is transformed into low temperature towing ice model tank undoubtedly will be difficult in face of huge technology and economy
Topic, it is clear that without practical feasibility.And installation wave maker technical difficulty is smaller in existing low temperature pulls ice model tank, put into
This is lower, is feasible solution.Design and produce the wave maker suitable for ice model tank and mainly face following technical problem：
● the low temperature test indoor environment temperature residing for ice model tank is relatively low, and power occurs in servo-drive system at low ambient temperatures
The phenomenon of decay, or even can not run or be damaged.
● for the water surface covered with can ice, the target of wave maker is mixture of ice and water in ice model tank.Although in wave maker
It can be cleared up during work and make ripple regional model ice, but wave maker wave making component still inevitably contacts with mixture of ice and water, it is right
Wave maker structural strength, rigidity and driving force propose higher requirement.
● due to the influence of low temperature environment and ice load, the volume of ice model tank wave maker can increase, and cause more occupancy ten
Divide valuable ice model tank pilot region.Meanwhile more harsh design parameter requirement also improves the manufacturing cost of wave maker.
With deepening continuously for polar region development of resources and space development, and polar region periphery marginal ice zone marine environment feature
The increasingly increase of forecast demand is, it is necessary to carry out a large amount of basic model test work sutdy ice-waves and its mutual with structure
Effect process.And the low temperature towing ice model tank quantity still run in world wide at present is seldom, wave energy power is made more wherein possessing
It is very rare.Newly-built low temperature towing ice model tank investment is huge, construction period length, and installing wave maker in existing ice model tank just turns into
Alleviate the effective ways of contradiction between model test workload and laboratory infrastructure device ability.And existing all kinds of wave maker equipment
Because above-mentioned technical problem is unsuitable for being directly installed in ice model tank, therefore, research and development can be applied to making for low temperature towing ice model tank
Ripple machine is very necessary.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of that existing ordinary water wave maker is not suitable for ice model tank technically, with reference to low temperature
Pull the environmental condition and technical requirements of ice model tank, there is provided a kind of wave maker that can be applied to low temperature towing ice model tank.It is not
Only be adapted to environmental quality and the job requirement of ice model tank, be also equipped with good dismantled and assembled property, easily can repeatedly install with
Remove, and do not influence ice model tank original structure and equipment.Technical scheme is as follows：
A kind of dismantled and assembled rocking plate type wave making system that can be applied to low temperature towing ice model tank, including at least one wave maker
1st, vertical support 6, horizontal stand 8, track support base 9 and track 20, wherein,
Each wave maker 1 includes rocker 2, balance staff 12, servo drive system 4, seal box 3, bottom of pond basis steelframe 5；Servo
Drive system 4 is placed in seal box 3, including servomotor and double shaft-protruding type reductors, two rocker balance staffs 12 pass through connection respectively
Axle device 14 is connected with the output shaft of double shaft-protruding type reductors；Rocker balance staff 12 stretches out seal box through dynamic sealing interface 13, with fixation
It is connected in the bearing 21 on basic steelframe, servo drive system 4 drives rocker 2 to swing by balance staff 12.
It is fixedly connected between the bottom of pond basis steelframe 5 of adjacent wave maker 1, it is ensured that the concentricity of each balance staff of wave maker 1；Two
Side is respectively fixedly connected with described vertical support 6 close to the basic steelframe 5 of the wave maker 1 of the position of ice model tank pool wall 7, in both sides
The top of ice model tank pool wall 7 is respectively fixed with described track 20 and track support base 9, and vertical support 6 is propped up by described level
Frame 8 is connected to track support base 9.
Preferably, bottom of pond basis steelframe 5 is placed on the rubber spacer 17 for being laid on bottom of pond.
The present invention combines the special environmental condition and technical requirements of low temperature towing ice model tank, and existing ordinary water wave flume is made
Ripple machine carries out technological improvement, have developed a kind of dismantled and assembled flap type wave generator that can be applied to low temperature towing ice model tank.With showing
There is ordinary water wave maker to compare, the present invention has advantages below in frozen water pool environment：
(1) present invention is improved wave maker servo drive system position, and servo-drive system is placed in seal box, and
Seal box is arranged on bottom of pond.At present, the low temperature towing ice model tank laboratory quantity to be run well in world wide is seldom, and its
In wave simulator is not installed in addition to extremely indivedual ice model tanks, main cause is limited by each technical problem described previously.
In the low temperature for having installed wave simulator pulls ice model tank, structural shape and the ordinary water flap type wave generator substantially phase of wave simulator
Together, its resistance to low temperature is strengthened, and can run at low ambient temperatures.A series of flap type wave generators are consolidated in the laboratory
It is scheduled on the pool wall of ice model tank one end, occupies larger lab space, and the power output of drive system occurs under low temperature
Obvious decay.Either under ordinary water environment or wave maker, existing application example drive wave maker in ice model tank
System is arranged on pool wall or wave simulator top, avoids contacting with water.The present invention has carried out creativeness in this problem
Improve, wave maker servo drive system is placed in seal box and is installed on bottom of pond.Rocker balance staff passes through dynamic close on seal box
Casing is stretched out in sealing, and driving rocker is swung.Cable etc. extend out to ground by the static seal mouth on seal box and connects switch board etc.
Equipment.To avoid seal failure from intaking, particularly the dynamic sealing mouth of balance staff stretching, wave maker needed per continuous operation 3~6 months
Check sealing situation and carry out appropriate repairing.After the present invention carries out this improvement to wave maker, make it in ice model tank adaptability
Aspect obtains following advantage：
● rocker balance staff passes through double shaft-protruding type reductors, and reductor direct drive and control balance staff rotate, and reduce machinery
Power loss in transmission process, improve the delivery efficiency of servo drive system.
● in the operating condition, minimum reachable -25 DEG C of air themperature in low temperature towing ice model tank laboratory, and in pond
Water temperature is maintained at about 0 DEG C.Servo drive system is placed in water, it is possible to prevente effectively from causing output work because environment temperature is too low
Rate decay can not even work, while water temperature can ensure effective radiating when servo drive system works.
● the design type that servo drive system is placed in underwater sealing case, wave maker structure is greatly simplify,
Wave maker volume is reduced, saves the valuable test space of low temperature towing ice model tank.
(2) present invention is improved the drive pattern of flap type wave generator.Traditional flap type wave generator is usually through song
Bar or expansion link are connected with rocker top, promote (retracting) rocker around balance staff swing.This drive pattern determines curved bar
Or the other end of expansion link must be fixedly arranged in the very big wave maker mechanism of rigidity so that wave maker oeverall quality, volume are larger,
And there must be firm connection with pond.This result in existing low temperature pull ice model tank on the basis of installation wave maker have it is very high
Technical difficulty.The present invention connects the output shaft of rocker balance staff and double shaft-protruding type reductors by shaft coupling, directly passes through
The output shaft driving of reductor and control rocker are swung.This improvement greatly simplify the transmission mould of flap type wave generator
Formula, wave maker no longer need huge rigid frame, reduce the quality and volume of wave maker, make it more conveniently to realize
Installation and dismounting in existing ice model tank.
(3) present invention improves over the structural shape of wave maker, it is made more to adapt to the water conditions of ice model tank.Pulled in low temperature
In ice model tank before the experiment of development ice model, it is always necessary to by refrigeration cool-down, in water surface generation model ice raft.Traditional ordinary water shakes
Board-like wave maker has been disposed about frame structure and some driving members in the water surface, and these driving members can in water surface freezing process
It can therewith freeze, lead to not normal operation.The transmission mechanism of flap type wave generator is arranged in the bottom, the water surface by the present invention
Nearby only has rocker, ripple region water surface ice sheet is made in removing before the test to run.
(4) present invention is designed using split type rocker wave maker, is improved the dismantled and assembled property of wave maker, is made it easy to install
And dismounting.First, some groups of rocker wave makers are evenly arranged along ice model tank width, reduce the installation work(of every group of wave maker
Rate, so as to reduce single set wave maker quality and volume, it is easily installed and removes.Meanwhile it is made using multigroup wave maker pattern
Adaptability is had more to different ice model tank width, can be according to different pond width increase and decrease wave maker group numbers.On the other hand, often
Group rocker wave maker include support base, underwater sealing case, rocker, balance staff, shaft coupling, servomotor, reductor, cable and
Control system etc..These components and equipment can independently be split, and carried out assembled at low temperature towing ice model tank scene and removed, from
And improve the dismantled and assembled property of wave maker.
(5) present invention is improved the fixed form of flap type wave generator.Traditional ordinary water flap type wave generator is mostly
Structure is fixed on pool wall or bottom of pond by the way of foundation bolt.Low temperature towing ice model tank need to produce model in pond
Ice, this is required when pond is built in pool wall and bottom of pond arrangement heat-insulation layer.Therefore, the installation of traditional rocker wave maker foundation bolt
Mode can destroy pond heat-insulation layer, be unsuitable for the installation in ice model tank.The present invention is by vertical on bottom of pond basis steelframe, pool wall
Horizontal stand below support and insertion track support base fixes wave maker, with constraint of the track support base to horizontal stand and base
Horizontal force and tilting moment during the friction dynamic balance wave maker operation of plinth steelframe.This need not be in pool wall or pond with regard to fixed form
Bottom is punched, and will not destroy frozen water pool structure.
Brief description of the drawings
Fig. 1 is the front view that 3 groups of flap type wave generators are arranged in low temperature towing ice model tank.
Fig. 2 is the top view that the structures such as 3 groups of flap type wave generator basis steelframes, horizontal stands are arranged in ice model tank.
Fig. 3 is the side view that the structures such as 3 groups of flap type wave generator basis steelframes, vertical support frames are arranged in ice model tank.
Label declaration in figure：1st, the dismantled and assembled flap type wave generator of ice model tank；2nd, rocker；3rd, underwater sealing case；4th, servo is driven
Dynamic system；5th, basic steelframe；6th, vertical support；7th, ice model tank pool wall；8th, horizontal stand；9th, track support base；10th, rocker swing arm
Channel-section steel；11st, rocker reinforcement angle steel；12nd, balance staff；13rd, seal box dynamic sealing mouth；14th, shaft coupling；15th, basic steelframe frame slot
Steel；16th, basic steelframe aggregate angle steel；17th, rubber spacer；18th, horizontal stand framework angle steel；19th, rubber joint filling；20th, experiment is dragged
Track road；21st, balance staff bearing；22nd, vertical Support frame channel-section steel；23rd, vertical support diagonal brace angle steel.
Embodiment
The present invention makes ripple principle using rocker, and dismantled and assembled a kind of improved towing ice model tank suitable for low temperature of design shakes
Board-like wave maker 1.Rocker 2 is higher by the water surface when upright, and is always ensured that in it makes ripple swing process on the water surface.Rocker plate
Face is 3mm thickness stainless steel plates, and steel plate surrounding is that [there be L50 stainless steels angle steel 11 framework that 10 stainless steel channel-section steels 10 are formed, centre
The X-type diagonal brace of composition is as aggregate.Rocker both sides channel-section steel is connected on underwater balance staff 12 as rocking arm, and balance staff, which is swung, to be driven
Portion's rocker moves back and forth therewith.
Rocker balance staff is connected by shaft coupling 14 with the output shaft of double shaft-protruding type reductors, and servomotor and reductor are direct
Balance staff is driven to rotate, so as to control the motion of rocker.Wherein, the power output of servomotor is 7.5kW, reductor it is maximum defeated
It is 7000kNm to go out moment of torsion.Drive system (including servomotor, reductor, driver and cable etc.) is placed in underwater sealing case 3
In, the profile of underwater sealing case is the profile of servomotor, reductor, appropriate gap is left with driving equipment, so as to reduce
The buoyancy of seal box.Balance staff is stretched into casing by the dynamic sealing mouth 13 of seal box both sides and is connected with shaft coupling, each seal box
In addition to the two dynamic sealing mouths, also a static seal mouth is passed to ground for cable is connected with switch board.Seal box
Casing is spliced by the 3mm thickness stainless steel plates of reinforcement, ensures not deform under equipment operation and hydraulic pressure.
Seal box is arranged on basic steelframe 5 by bolt, and basic steelframe is by [10 stainless steel channel-section steels 15 and L50 are stainless
The frame structure that steel angle steel 16 is welded into.Basic steelframe is placed on rubber spacer 17, increase and the frictional force of bottom of pond.Adjacent foundation
The side of steelframe is brought into close contact, blending bolt connection, ensures the concentricity of each group rocker wave maker balance staff.Leaned in wave maker both sides
Vertical support 6 is installed in nearly pool wall position, and main function is connection pool wall upper horizontal support 8 and bottom of pond basis steelframe 5.Level branch
The insertion pool wall upper rail of frame 8 support base 9 in space, is filled up the space between support angle steel 18 and support base with rubber to be formed below
Rubber joint filling 19, for horizontal stand provide it is horizontal to vertical constraint.The present invention passes through basic steelframe, vertical support and horizontal branch
Frame provide wave maker structure it is horizontal to vertical constraint, ice model tank is broken so as to avoid the fixed forms such as foundation bolt
It is bad.
Each group servo drive system ensures the synchronism that each group rocker moves by software independent control.According to rocking plate type
Wave maker makes the theoretical establishment rocker equation of motion of ripple, controls each rocker to be swung by preset program and makes ripple.According to rocker of the present invention
Trial operation situation of the formula wave maker in ice model tank, maximum wave height 0.25m, maximum wave period 3s rule can be efficiently generated
Ripple.
Servomotor and reductor are furnished with brake locking function in drive system, and when that need not make ripple, rocker lodging exists
Bottom of pond is simultaneously locked, does not influence the normal use of low temperature towing ice model tank.When needing to make ripple operation, will first make on the water surface of ripple region
Model ice sheet or trash ice remove, rise rocker to vertical position, start to make wave motion using the position as initial position.
Claims (2)
1. a kind of dismantled and assembled rocking plate type wave making system that can be applied to low temperature towing ice model tank, including at least one wave maker
(1), vertical support (6), horizontal stand (8), track support base (9) and track (20).Wherein,
Each wave maker (1) includes rocker (2), balance staff (12), servo drive system (4), seal box (3), bottom of pond basis steelframe
(5)；Servo drive system (4) is placed in seal box (3), including servomotor and double shaft-protruding type reductors, two rocker balance staffs
(12) it is connected respectively by shaft coupling (14) with the output shaft of double shaft-protruding type reductors；Rocker balance staff (12) is through dynamic sealing interface
(13) seal box is stretched out, is connected with the bearing (21) being fixed on basic steelframe, servo drive system (4) is driven by balance staff (12)
Shake plate (2) swing.
It is fixedly connected between the bottom of pond basis steelframe (5) of adjacent wave maker (1), it is ensured that the concentricity of each wave maker (1) balance staff；
Both sides are respectively fixedly connected with described vertical support close to the basic steelframe (5) of the wave maker (1) of ice model tank pool wall (7) position
(6) described track (20) and track support base (9), vertical support, are respectively fixed with both sides ice model tank pool wall (7) top
(6) track support base (9) is connected to by described horizontal stand (8).
2. the dismantled and assembled flap type wave generator (1) according to claim (1), it is characterised in that bottom of pond basis steelframe (5) is put
Put on the rubber spacer (17) of bottom of pond is laid on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710615689.2A CN107478406A (en) | 2017-07-26 | 2017-07-26 | A kind of dismantled and assembled rocking plate type wave making system that can be applied to low temperature towing ice model tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710615689.2A CN107478406A (en) | 2017-07-26 | 2017-07-26 | A kind of dismantled and assembled rocking plate type wave making system that can be applied to low temperature towing ice model tank |
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| CN107478406A true CN107478406A (en) | 2017-12-15 |
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| CN201710615689.2A Pending CN107478406A (en) | 2017-07-26 | 2017-07-26 | A kind of dismantled and assembled rocking plate type wave making system that can be applied to low temperature towing ice model tank |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717017A (en) * | 2018-08-07 | 2018-10-30 | 上海海事大学 | Arctic navigation Marine Materials low temperature environment frictional impact performance testing device |
| CN109029911A (en) * | 2018-06-26 | 2018-12-18 | 江苏科技大学 | Rail circle oscillation level cylinder deep water ice test tank, which is made, involves combination attenuating shock wave system |
| CN109342016A (en) * | 2018-11-06 | 2019-02-15 | 哈尔滨工程大学 | Pool wall and bottom of pond simulator in a kind of towing basin |
| CN109946040A (en) * | 2019-03-25 | 2019-06-28 | 天津大学 | A kind of liftable wave making system |
| CN110346112A (en) * | 2019-08-09 | 2019-10-18 | 交通运输部天津水运工程科学研究所 | A kind of easy-to-mount adjustable wave maker for making wave width |
| CN110823508A (en) * | 2019-11-07 | 2020-02-21 | 哈尔滨工程大学 | Experimental device for simulating pie-shaped ice drifting accumulation on wind-driven waves |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029911A (en) * | 2018-06-26 | 2018-12-18 | 江苏科技大学 | Rail circle oscillation level cylinder deep water ice test tank, which is made, involves combination attenuating shock wave system |
| CN108717017A (en) * | 2018-08-07 | 2018-10-30 | 上海海事大学 | Arctic navigation Marine Materials low temperature environment frictional impact performance testing device |
| CN109342016A (en) * | 2018-11-06 | 2019-02-15 | 哈尔滨工程大学 | Pool wall and bottom of pond simulator in a kind of towing basin |
| CN109946040A (en) * | 2019-03-25 | 2019-06-28 | 天津大学 | A kind of liftable wave making system |
| CN109946040B (en) * | 2019-03-25 | 2024-02-09 | 天津大学 | Liftable wave generation system |
| CN110346112A (en) * | 2019-08-09 | 2019-10-18 | 交通运输部天津水运工程科学研究所 | A kind of easy-to-mount adjustable wave maker for making wave width |
| CN110346112B (en) * | 2019-08-09 | 2024-01-26 | 交通运输部天津水运工程科学研究所 | Wave generator with adjustable wave generating width and convenient to assemble and disassemble |
| CN110823508A (en) * | 2019-11-07 | 2020-02-21 | 哈尔滨工程大学 | Experimental device for simulating pie-shaped ice drifting accumulation on wind-driven waves |
| CN110823508B (en) * | 2019-11-07 | 2021-10-19 | 哈尔滨工程大学 | Experimental device for simulating pie-shaped ice drifting accumulation on wind-driven waves |
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Application publication date: 20171215 |