CN105300678B - A kind of net cage model test platform - Google Patents
A kind of net cage model test platform Download PDFInfo
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- CN105300678B CN105300678B CN201510762663.1A CN201510762663A CN105300678B CN 105300678 B CN105300678 B CN 105300678B CN 201510762663 A CN201510762663 A CN 201510762663A CN 105300678 B CN105300678 B CN 105300678B
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- pulling force
- net cage
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Abstract
A kind of net cage model test platform, it is characterized in that two platform girders are across track, moved by trailer traction, platform girder passes through longitudinally connected bar, transverse connecting rod connection composition platform framework, the centre of platform framework supports for connection, for installing capacity measurer, the corner of platform framework and anterior installation clamping plate, to install shooting bar and draw bar, side camera operation bar is installed in the side of platform framework, camera uses water-proof CCD camera, carry LED illumination lamp, it is fixed on camera operation bar bottom, pulling force sensor support is installed and places pulling force sensor in the top of draw bar, draw bar bottom is installed by pulley, it is used as the conduction device of model test pulling force rete cord, multi-angle phantom images are transferred to display end by the camera device of platform corner and side, pulling force data is measured by pulling force sensor and is transferred to computer display end, reading data in real-time is simultaneously preserved, whole platform structure is connected by the attachment means of front end with trailer afterbody.
Description
Technical field
The present invention relates to net cage model test equipment.
Background technology
Cage culture particularly seawater cage culture turns into the important component of China's culture fishery, net cage conduct
Carrier is cultivated, its structural behaviour is directly connected to industrial benefit, and the structure of net cage mainly includes buoyancy framework and etting, to keep
Etting shape, it will usually equipped with sinker.Net cage can be deformed upon in water by the effect of current, the mooring system of fixed cage
Need to be designed through overtesting and measuring and calculating, these are difficult in actual environment, by water trough model experimental study with changing
The structural behaviour of kind net cage is one of main path.Net cage model flume test is that aquaculture net cage according to the theory of similarity is made mould
Type net cage is tested in the sink, to study hydrodynamic performance of the net cage in water, includes stress and the volume change of net cage
Deng.
In the prior art, it is usually in the dynamic water tank net cage model test similar with being carried out in hydrostatic vater tand, due to moving water
Groove is size-limited, adds the large scale ratio of model net cage, increases the error of result of the test, the reliability of data is difficult to
To guarantee.Although hydrostatic vater tand size is enterprising than larger, current experiment or in the platform base of original trawlnet model test
OK, the simulated experiment of two point mooring system can only be carried out, the precision and acquisition method of its data are all relatively backward, in addition, net
The image collection of box model experiment and volumetric measurement can not all be completed in current testing equipment, it is difficult to reach that net cage model is tried
The test requirements document tested, therefore, designs and produces the test platform of new suitable net cage model test and develops a sets of data and adopt
Diversity method turns into the technical problem for being currently needed for solving.
The content of the invention
The purpose of the present invention is to design a set of and hydrostatic vater tand, the experiment of trailer and the suitable net cage model test of track cooperation
Platform.
Technical scheme is supported by platform girder, rail wheel, longitudinally connected bar, transverse connecting rod, centre connection,
Clamping plate, capacity measurer images bar, draw bar, side camera operation bar, camera, pulling force sensor support, pull sensing
Device, bottom pulley, Image Terminal is integrated under water, and pulling force data is shown, platform front end connection composition, it is characterized in that platform girder is
Two aluminum alloy square tubes are across track, and platform girder two ends stand on the tethered sliding on track by trailer, two for rail wheel
Bar platform girder is by longitudinally connected bar, and transverse connecting rod is attached composition platform framework, and the centre of platform framework is centre
Connection support, for installing capacity measurer, the corner of platform framework and anterior installation clamping plate, clamping plate is single page bascule,
Height adjustable to install shooting bar and draw bar, shooting bar and draw bar, side shooting is installed in the side of platform framework
Action bars, this action bars height adjustable, and position can be moved along longitudinally connected bar, and camera uses water-proof CCD camera, carries LED
Illuminating lamp, is fixed on camera operation bar bottom, pulling force sensor support is installed at the top of draw bar, for placing pull sensing
Device, draw bar bottom is installed by pulley, as the conduction device of model test pulling force rete cord, the camera device of platform corner and side
Multi-angle phantom images are transferred to display end, can be by scene viewing to adjust the trystate of net cage model, and can preserve
Image data is tested, pulling force data is measured by pulling force sensor and is transferred to computer display end, and reading data in real-time is simultaneously preserved,
Whole platform structure is connected by the attachment means of front end with trailer afterbody.
Beneficial effects of the present invention are：Test platform is assembled using aluminum alloy square tube material, and such a material is firmly steady
Surely corrosion is difficult, and it is light compared with steel construction, easy to disassemble and assembling, experiment completes detachable preservation, is not take up flume experiment room
Space and resource.The global design Stability Analysis of Structures of platform, can carry out the model test of larger towing speed, 3 tractions of Platform Designing
Bar, can simulate the hydrodynamic test of single-point, two point and multiple spot mooring system net cage model.The medium design of platform has net cage volume
Measuring system, the volume change for measuring net cage is calculated by infrared distance measuring and real time image data transmission principle.This platform can
Experiment is provided for large-sized net cage model, the error influence that model dimension Comparability test is caused is reduced, makes experimental data more
Plus it is true and reliable, meanwhile, platform can also carry out the flume test of polytype net cage model, such as circular net cage, square net
Case and Composite-type Sea Cage.Test platform is integrated with net cage volumetric measurement system, the acquisition system of image observation under water, tensile test
System, comprehensive net cage model-test data can be obtained simultaneously in once experiment.Designing and producing for this platform will be net cage mould
Type experiment provides brand-new test method, the test data of acquisition more fully with accurately, be water trough model experiment important side
Method.
Brief description of the drawings
Fig. 1 is net cage model test platform structural representation.
Fig. 2 is rail wheel structural representation.
Fig. 3 is clamp region schematic diagram.
Fig. 4 is side camera operation bar structural representation.
Fig. 5 is pulling force sensor supporting structure schematic diagram.
Fig. 6 is bottom pulley structural representation.
Fig. 7 is camera structure schematic diagram.
Embodiment
Net cage model test platform is designed and produced to be carried out based on existing hydrostatic vater tand acting trailer system, quiet with reference to application test
The size of tank can be adjusted to the size of framework, below so that hydrostatic vater tand size is 6m × 90m × 3m as an example, i.e. tank width
6m, length 90m, depth 3m；Trailer speed scope 0-2m/s, the specific reality of rail wheel spacing 6.45m net cage model test platforms
Apply mode (referring to Fig. 1-Fig. 7).
The aluminum alloy square length of tube 6.8m of platform girder 1, the specification of single square tube is chosen can be according to this span (6.8m) load-bearing
More than 100kg, using M types connection support 22 is welded between two aluminum alloy square tubes, constitutes 1 girder, platform totally 2 girders,
Load-bearing >=200kg of every girder.
The longitudinally connected material of bar 3 is aluminum alloy square tube, and length is 4.2m, and this square tube specification is chosen can be according to this span
The weight (40kg) of (4.2m) load-bearing capacity measurer 4, the quantity of longitudinally connected bar 4 is divided into up and down each 2 in platform both sides
Root, top 2, which is bolted, fixes 2 girders, it is ensured that the spacing of 2 girders is 4m, following 2 connections transverse connecting rod
7, form the main frame structure of platform.
Capacity measurer 4 is fixed in the middle of 2 in the middle of platform in connection support 6, is extended by rotatable action bars
Enter in water, the bottom of bar is fixed with infrared laser ranging device and real-time photography head device, the data output of two devices to electricity
Brain, the volume for obtaining net cage model by later stage software analysis and data processing changes numerical value.
The aluminium alloy shaped-tube that bar 5 is section ellipse is imaged, length is 2m, totally 4, is fixed on four angles of platform,
Fixed by clamping plate 9, can control to image the height of bar by ambulatory splint 26, image the bottom welding image head bracket 31 of bar,
Place underwater camera 11.
The material of centre connection support 6 is identical with longitudinally connected bar, and length is 4.2m, is bolted and is fixed on girder
Centre position, its role is to support fixed volume measuring instrument 4.
The material of transverse connecting rod 7 is aluminum alloy square tube, and length is 4.1m, and specification, which is chosen, refers to longitudinally connected bar 3, with putting down
Platform girder 1, clamping plate 9 and the composition platform framework of longitudinally connected bar 3.
Clamping plate 9 be steel design, finish coatings antirust, by central rotating shaft 25, ambulatory splint 26, strap 27 is constituted,
Wherein ambulatory splint can be rotated around central rotating shaft 25, and draw bar 13 or shooting bar 5 can be adjusted height by opening, then clamped and used
Bolt is fixed.
Rail wheel 10 totally 4, is fixed on the two ends of platform girder, is made up of central roller 23 and both sides locating wheel 24, two
The effect of side locating wheel 24 is that centre of location roller 23 is rolled at the center of track 2.
Underwater camera 11 totally 5, is made up of, camera 32 carries LED illumination lamp camera bracket 31 and camera 32,
The image of experimental model can clearly be shot.5 underwater cameras are respectively arranged in 4 shooting bars 5 and 1 side camera operation
The bottom of bar 12, while the image data of collection model difference angle, can be real by cable transmission to Image Terminal under water integrated 16
When observational network box model 8 state and can record a video.
Side camera operation bar 12 is made up of aluminium alloy lath with movable fixture 28, stave lengths 2m, wide 50mm, thickness
10mm, is connected by bolt with movable fixture 28, and lath top half reserves several bolt fixing holes every 100mm, can be passed through
Bolt adjusts the height of camera operation bar.Movable fixture 28 is the framework being welded by aluminium alloy lath, can by bolt with
The longitudinally connected clamping of bar 3 is fixed, and the bolt that comes loose can reach traversing operation of the side camera operation bar 12 in longitudinally connected bar 3,
The bottom welding image head bracket 31 of action bars, places underwater camera 11.
The material of draw bar 13 is identical with shooting bar 5, and this Platform Designing has 3 draw bars, and middle draw bar is fixed, and two
The draw bar on side can be moved by mobile clamping plate on girder, adjustment position.Pulling force sensor support is fixed with the top of draw bar
20, pulling force sensor 21 is installed by the suspension of suspension ring 29, pulley 14 is installed in bottom, for the conduction of pulling force rete cord 30, pulling force guiding principle
The two ends connection net cage model 8 and pulling force sensor 21 of rope, the numerical value of pulling force can be shown 17 observations and recorded by pulling force data.
Experiment needs the net cage mooring system simulated to reach requirement of experiment by adjusting the quantity and spacing of draw bar.
Trailer afterbody connection 18 is connected 19 with platform front end to be connected platform with trailer by bolt, and control trailer 15 can
With the movement of control platform, the model test of friction speed is carried out.
Acquisition and the data precision of the above-mentioned test platform to test data have larger lifting.
Claims (1)
1. a kind of net cage model test platform, by platform girder, rail wheel, longitudinally connected bar, transverse connecting rod, centre connection branch
Support, clamping plate, capacity measurer images bar, and draw bar, side camera operation bar, camera, pulling force sensor support, pulling force is passed
Sensor, bottom pulley, Image Terminal is integrated under water, and pulling force data is shown, platform front end connection composition, it is characterized in that platform girder
Track is across for two aluminum alloy square tubes, the tethered sliding on track by trailer is stood at platform girder two ends for rail wheel,
Two platform girders are by longitudinally connected bar, and transverse connecting rod is attached composition platform framework, and the centre of platform framework is company
Support is connect, for installing capacity measurer, the corner of platform framework and anterior installation clamping plate, clamping plate is single page bascule, is used
To install the height adjustable of shooting bar and draw bar, shooting bar and draw bar, shooting behaviour in side is installed in the side of platform framework
Make bar, this action bars height adjustable, and position can move along longitudinally connected bar, camera uses water-proof CCD camera, carries LED photographs
Bright lamp, is fixed on shooting bar and side camera operation bar bottom, pulling force sensor support is installed at the top of draw bar, for putting
Pulling force sensor is put, bottom pulley is installed in draw bar bottom, and as the conduction device of model test pulling force rete cord, 5 are taken the photograph under water
, can be by scene viewing to adjust the trystate of net cage model as multi-angle phantom images are transferred to display end by head, and can
Food preservation test image data, pulling force data is measured by pulling force sensor and is transferred to computer display end, and reading data in real-time is simultaneously
Preserve, whole platform structure is connected by the attachment means of front end with trailer afterbody.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510762663.1A CN105300678B (en) | 2015-11-11 | 2015-11-11 | A kind of net cage model test platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510762663.1A CN105300678B (en) | 2015-11-11 | 2015-11-11 | A kind of net cage model test platform |
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| CN105300678A CN105300678A (en) | 2016-02-03 |
| CN105300678B true CN105300678B (en) | 2017-11-07 |
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| CN106768854B (en) * | 2017-04-06 | 2023-10-03 | 大连海事大学 | Portable laboratory bench of simulation sunken ship salvage process |
| CN107101877B (en) * | 2017-06-22 | 2019-07-16 | 长安大学 | A kind of comprehensive geotechnical engineering test platform of complex slopes geologic model test |
| CN108362478A (en) * | 2018-04-23 | 2018-08-03 | 中国水产科学研究院东海水产研究所 | A kind of water trough model experiment angle rotation control device |
| CN110132532B (en) * | 2019-04-30 | 2020-11-03 | 浙江大学宁波理工学院 | Tension leg net cage model test device |
| CN110146245B (en) * | 2019-04-30 | 2020-10-09 | 宁波大学 | Model testing device for preventing horizontal current impact of bottom-sitting type culture platform |
| CN114894437B (en) * | 2022-06-07 | 2023-03-17 | 上海交通大学 | Test device for researching coupling hydrodynamic characteristics of stand column-netting structure |
| CN115326355A (en) * | 2022-08-22 | 2022-11-11 | 烟台哈尔滨工程大学研究院 | Experimental device and experimental method for measuring wave current hydrodynamic force of deep-sea net cage |
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| JP2004150982A (en) * | 2002-10-31 | 2004-05-27 | Nichimo Co Ltd | Wave-generating towing type water tank |
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