CN113607591B - Device and method for testing contact wear of metal net for mariculture - Google Patents
Device and method for testing contact wear of metal net for mariculture Download PDFInfo
- Publication number
- CN113607591B CN113607591B CN202111174969.7A CN202111174969A CN113607591B CN 113607591 B CN113607591 B CN 113607591B CN 202111174969 A CN202111174969 A CN 202111174969A CN 113607591 B CN113607591 B CN 113607591B
- Authority
- CN
- China
- Prior art keywords
- netting
- test piece
- clamping
- sliding table
- water tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
Abstract
The invention belongs to the technical field of marine aquaculture engineering, and particularly relates to a device and a method for testing contact wear of a metal net for mariculture. A contact wear test device for a metal net for mariculture mainly comprises a water tank, a clamping module arranged in the water tank and a vibration excitation module connected with the clamping module; the clamping module is connected with the pretightening force module. The device and the method for testing the contact wear of the metal netting for mariculture can compare the sliding wear performance of the mesh staggered point of a small-size netting test piece in a seawater or freshwater environment, perform qualitative and quantitative test measurement, are simple and convenient to operate and are easy to realize.
Description
Technical Field
The invention belongs to the technical field of marine aquaculture engineering, and particularly relates to a device and a method for testing contact wear of a metal net for mariculture.
Background
In mariculture equipment, the metal netting has good corrosion resistance, adhesion resistance and antibacterial properties, and meanwhile, the high hardness of the metal material can reduce the deformation of the net cage and increase the culture volume through phase change, so that the metal netting has a very wide application prospect. However, the existing culture application process finds that the metal net cage has obvious abrasion defects, and the main reason is that the interlaced mode of the mesh metal wires is movable, so under the action of ocean currents, the net cage moves along with the currents to cause the deformation of the net, two metal wires at the mesh interlaced points are always in a sliding abrasion state, and finally, an oxidation protection film on the surfaces of the metal wires is abraded and corroded to cause the damage of the net.
The use of metal netting in mariculture has been started in the 80 th century in fisheries developed countries such as japan, norway, and the usa, and good benefits have been achieved. However, China has not been applied in a large range in the field of marine culture so far, and one reason is that the distribution of China in the north and south of the sea area is wide, and the offshore sea state is more complex than the countries, so that the abrasion of the metal netting is more serious. The disadvantage of the metal netting that is not wear-resistant severely restricts the application of the metal netting in mariculture in China.
In the stage of metal netting development, if the wear resistance of the metal netting can be measured, the wear resistance between test pieces and between different products in different stages of the metal netting can be measured from two angles of longitudinal development and transverse comparison, the defect that the metal netting is difficult to wear can be overcome, and the wide-range application of the metal netting in mariculture is promoted. In the prior art, no relevant device and method for measuring the wear performance of the netting are reported.
Disclosure of Invention
The invention aims to make up for the defects of the prior art, and provides a device and a method for testing contact wear of a metal netting for mariculture, which are used for simulating sliding contact wear of the metal netting at mesh staggered points in the using process and measuring the wear performance of the metal netting, are beneficial to follow-up research of corresponding measures and reduce adverse effects caused by wear.
In order to achieve the purpose, the invention firstly provides a metal netting contact wear test device for mariculture, which mainly comprises a water tank, a clamping module arranged in the water tank and a vibration excitation module connected with the clamping module; the clamping module is connected with the pretightening force module.
As a preferred mode of the invention, the clamping module comprises a sliding table, a lower clamping rod fixed on the sliding table, and an upper clamping rod connected with the pretightening force module; the upper clamping rod and the lower clamping rod are used for fixing a netting test piece; the sliding table is fixed at the bottom of the water tank.
Further preferably, the pretensioning force module comprises an upper fixing plate, a lower fixing plate and a bolt mounting plate; the lower end surface of the lower fixing plate is fixedly connected with the upper clamping rod; the bolt mounting plate is connected with the upper fixing plate through a clamping bolt; and a force sensor is fixed between the upper end surface of the lower fixing plate and the lower end surface of the bolt mounting plate.
Further preferably, the upper fixing plate is fixed on the floor stand; the floor stand is fixed on the ground.
Further preferably, the vibration excitation module comprises a linear motor sliding table and a driving shaft, and the linear motor sliding table is fixed on the ground outside the water tank; one end of the driving shaft is connected with the linear motor sliding table, the other end of the driving shaft is connected with the sliding table of the clamping module, and the middle of the driving shaft is connected with the water tank through a dynamic sealing device.
Further preferably, the vibration exciting module further comprises a central fixing bracket; one end of the central fixing support is connected with the driving shaft, and the other end of the central fixing support is used for being connected with the center of the netting test piece.
In order to achieve the above object, the present invention further provides a method for quantitatively testing contact wear of a metal netting for mariculture, which adopts the above test apparatus, and comprises the following steps:
(1) measuring wire diameters of two metal wires at each staggered point of netting test pieceD i j0（，）；i，jIs shown asiGo to the firstjStaggered dots of columns;
(2) carrying out a contact wear test on the netting test piece;
(3) measuring the wire diameters of two metal wires at each staggered point after the testD i j1（，）；
(4) Calculating to obtain the abrasion loss at each mesh staggered pointM （i j），：
(5) Calculating the abrasion loss of the whole netting test pieceM N ：
Wherein the content of the first and second substances,Nthe number of the staggered points on the netting test piece is shown.
Further, the contact wear test is to simulate the flow-following vibration of the netting test piece in the downstream direction and/or the incident flow direction by using the test device.
Further, when the following-flow vibration of the netting test piece in the downstream direction is simulated, the netting test piece adopts a mode of upper-side fixed and lower-side horizontal vibration, the clamping direction of the netting test piece is consistent with the displacement direction of the sliding table in the water tank, and the netting test piece is positioned in a vertical plane in a clamping state; the lower side of the net test piece vibrates along with the displacement of the sliding table.
Further, when the following flow vibration of the netting test piece in the incident flow direction is simulated, the netting test piece adopts a mode that the upper side and the lower side are fixed and the center is vibrated, the clamping direction of the netting test piece is vertical to the displacement direction of the sliding table in the water tank, and the netting test piece is positioned in a vertical plane in the clamping state; the center of the netting test piece vibrates along with the displacement of the central fixed support.
Compared with the prior art, the invention has the beneficial effects that:
1. the metal netting contact wear test device under the laboratory condition is provided, the comparison, qualitative and quantitative test measurement of the sliding wear performance of the mesh staggered point can be carried out on small-sized netting test pieces in the seawater or fresh water environment, the operation is simple and convenient, and the realization is easy;
2. by lengthening the sizes of the water tank and the internal sliding table thereof, the simultaneous abrasion test of a plurality of metal mesh test pieces can be realized, and the abrasion performance comparison among different test pieces is convenient;
3. the device can also be used for observing and checking the swing posture of the netting under the action of ocean current in real time;
4. the metal net contact wear test method can quantitatively measure the wear condition of the metal net for seawater cage culture caused by flow vibration in the upstream and downstream directions;
5. the test device and the method can also be used for testing the wear performance of the composite fiber and other material netting.
Drawings
FIG. 1 is a schematic structural diagram of a contact wear test device for netting in an embodiment of the present invention;
FIG. 2 is a schematic diagram of the pretensioning module and the clamping module according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a knitting and fixing manner of a netting test piece according to an embodiment of the present invention;
FIG. 4 shows the deformation of the netting mesh in the plane parallel to the direction of the ocean current in the net cage;
FIG. 5 shows the deformation of the netting mesh in the vertical plane to the direction of the ocean current in the net cage;
FIG. 6 is a schematic view of clamping and vibrating manner of a netting test piece along a downstream direction according to an embodiment of the present invention;
FIG. 7 is a schematic view of a clamping and vibration mode of a netting test piece in an embodiment of the invention along an incident flow direction;
FIG. 8 is a schematic view of a test of a contact wear test device for netting according to an embodiment of the present invention in a downstream direction (inside a water tank);
FIG. 9 is a schematic view of a net contact wear test device in the incident flow direction (inside a water tank) according to an embodiment of the invention;
FIG. 10 is a schematic view of a quantitative calculation method of the wear of the netting;
in the figure: 1. a water tank; 2. a pre-tightening force module; 3. a clamping module; 4. a vibration excitation module; 21. a watertight force sensor; 22. an upper fixing plate; 23. a lower fixing plate; 24. mounting a bolt plate; 25. clamping the bolt; 31. a sliding table; 32. an upper clamping rod; 33. a lower clamping rod; 34. a support; 35. a floor stand; 36. a netting test piece; 41. a linear motor sliding table; 42. a drive shaft; 43. a central fixed support; 44. and a dynamic sealing device.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The invention provides a contact wear test device for a metal net for mariculture, which mainly comprises a water tank 1, a pretightening force module 2, a clamping module 3 and a vibration excitation module 4 as shown in figure 1. The clamping module 3 is arranged inside the water tank 1 and used for clamping and fixing the netting test piece 36. The pretightening force module 2 is connected to the clamping module 3 and used for providing pretightening force. The vibration excitation module 4 is arranged outside the water tank 1, is connected with the clamping module 3 and is used for providing vibration excitation for the netting test piece.
Wherein, water tank 1 is fixed subaerial, and the box adopts transparent material, can look over the change gesture and the wearing and tearing condition of its inside etting in aqueous in wear test process in real time, can fill sea water or fresh water according to experimental requirement in water tank inside.
As shown in fig. 2, in the pretensioning module 2, the upper fixing plate 22 and the bolt mounting plate 24 are connected by a clamping bolt 25, and the distance between the upper fixing plate 22 and the bolt mounting plate 24 can be adjusted by adjusting the clamping bolt 25, so that pretensioning force is applied. The upper fixing plate 22 is fixed to the floor stand 35 by means of bolts. The watertight force sensor 21 is connected with the upper bolt mounting plate 24 and the lower fixing plate 23 through bolts, and can display the numerical value of pretightening force in real time; the upper fixing plate 22 is fixed to the floor stand 35 by bolts, and the floor stand 35 is fixed to the ground outside the water tank 1.
In the clamping module 3, the upper clamping rod 32 is fixed by bolts with the lower fixing plate 23 through the support 34, the lower clamping rod 33 is fixed by bolts with the sliding table 31 through the support 34, the base of the sliding table 31 is fixed at the bottom of the water tank 1, and the movable table surface of the sliding table 31 is connected with the driving shaft 42. The clamping direction of the mesh test piece 36 with the slide table 31 at the downstream is shown in fig. 8, and the clamping direction of the mesh test piece 36 with the slide table 31 at the upstream is shown in fig. 9.
The netting test piece 36 is woven on the upper clamping rod 32 and the lower clamping rod 33 by fiber ropes, in the vibration excitation module 4, the linear motor sliding table 41 is fixed on the ground outside the water tank 1, one end of the driving shaft 42 is connected with the linear motor sliding table 41 through the support 34, the other end of the driving shaft is connected with the sliding table 31 inside the water tank 1, and the middle part of the driving shaft penetrates through the dynamic sealing device 44 to realize dry and wet environment sealing in the linear motion process. The dynamic seal device 44 is fixed on the wall surface of the water tank 1 by bonding. The central fixing support 43 is mainly used for excitation transmission in a netting central excitation mode, and in the using process, one end of the central fixing support 43 is fixed with the driving shaft 42, and the other end of the central fixing support 43 is fixed with the central point of the netting test piece 36 through a bolt clamping piece.
When the pre-tightening force is loaded, it is firstly ensured that the net test piece 36 is fixed on the pre-tightening force module 2 and the sliding table 31 through the upper clamping rod 32 and the lower clamping rod 33, the pre-tightening force module 2 is fixed on the floor stand 35, the sliding table 31 is fixed in the water tank 1, and then the distance between the upper fixing plate 22 and the bolt mounting plate 24 is adjusted through the clamping bolt 25 to change the size of the pre-tightening force. Here, when the distance between the upper fixing plate 22 and the bolt mounting plate 24 is enlarged, the pretightening force is correspondingly reduced; when the distance between the upper fixing plate 22 and the bolt mounting plate 24 is reduced, the pretightening force is correspondingly increased.
When the netting test piece 36 is knitted and fixed with the upper clamping rod 32 and the lower clamping rod 33, as shown in fig. 3, a thin fiber rope is selected to sequentially pass through each mesh hole on the side to be fixed of the netting test piece 36, and then is wound and bound on the upper clamping rod 32 or the lower clamping rod 33.
The invention also provides a contact wear test method of the metal netting for mariculture, which comprises the simulation of the flow-following vibration generated by the netting in the flow-following direction and the flow-facing direction and the quantitative calculation of the wear loss.
When the netting is subjected to the action of sea current, the change conditions of the netting along the downstream direction and the upstream direction are different, as shown in fig. 4 and 5. In fig. 4, the netting exhibits a characteristic in which the mesh holes are changed from a square shape to a parallelogram shape, and in fig. 5, the netting exhibits a characteristic in which the central position is convexly deformed and the amount of deformation is gradually reduced from the central position to the upper and lower fixed boundaries. Therefore, the fixing mode of the net test piece 36 needs to be set according to two stress conditions of forward flow and incident flow, the fixing and vibration mode of the net test piece 36 is shown in fig. 6 when the forward flow acts, and the fixing and vibration mode of the net test piece 36 is shown in fig. 7 when the incident flow acts.
When the downstream direction flow-following vibration test is performed, as shown in fig. 8, the inside of the whole test device adopts a mode that the upper side of the net test piece 36 is fixed and the lower side of the net test piece horizontally vibrates, the clamping direction of the net test piece 36 is consistent with the displacement direction of the sliding table 31 in the water tank 1, and the net test piece 36 is ensured to be in a vertical plane in a clamping state. The horizontal vibration of the lower side of the net test piece 36 is realized by the linear motor sliding table 41 outside the water tank 1 through the driving shaft 42 driving the sliding table 31 in the water tank 1 to generate displacement. The test method is mainly used for simulating the wearing condition of the netting in the mariculture net cage in the plane parallel to the flow direction of ocean current.
When the flow-following vibration test is performed in the incident flow direction, as shown in fig. 9, the inside of the whole test device adopts a mode that the upper side and the lower side of the net test piece 36 are fixed and the center of the net test piece vibrates, the clamping direction of the net test piece 36 is perpendicular to the displacement direction of the sliding table 31 in the water tank 1, and the net test piece 36 is ensured to be in a vertical plane in a clamping state. The sliding table 31 in the water tank 1 is fixed in the measuring process so as to provide fixed clamping for the lower side of the net test piece 36, and the horizontal vibration of the center of the net is realized by driving the central fixed support 43 at the center of the net in the water tank 1 through the driving shaft 42 by the linear motor sliding table 41 outside the water tank 1. The test method is mainly used for simulating the wearing condition of the netting in the mariculture net cage in the plane vertical to the flow direction of ocean current.
After the abrasion test, the two metal wires at the mesh staggered point of the netting can generate the phenomenon of line diameter reduction due to mutual sliding contact abrasion, and the abrasion degree difference between different test pieces and different abrasion duration can be determined by measuring and counting the diameter change of the metal wires at each staggered point.
In this embodiment, the number of the mesh intersection points on the netting test piece 36 is recorded asNThe position of each interlaced point is denoted byi，j) As shown in fig. 10. The second staggered point from one corner of the netting test piece 36 to the inside is designated (1, 1), the last point in the corresponding same row is designated (1,j) The last interlaced point in the same column is denoted by (i，1）。
Before the test, the wire diameters of two metal wires at each staggered point need to be measuredD i j0（，）Here, theD i j0（，）Taking the average number of the wire diameters of the two metal wires, measuring the wire diameters of the two metal wires at each staggered point after the abrasion test is carried outD i j1（，）The abrasion loss at each mesh intersection point can be calculated by the formula (1)M i j（，）：
By the amount of wearM i j（，）The wear profile at different locations on the netting test piece 36 can be analyzed.
The abrasion loss of the whole netting test piece 36 can be calculated through the formula (2) in a statistical mannerM N ：
By the amount of wearM N The overall wear condition of the netting test piece 36 can be obtained to facilitate the wear performance comparison between different test pieces with different wear durations.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (4)
1. The utility model provides a mariculture is with metal mesh clothing contact wear test device which characterized in that: the device mainly comprises a water tank, a clamping module arranged in the water tank and a vibration excitation module connected with the clamping module; the clamping module is connected with the pretightening force module; the clamping module comprises a sliding table, a lower clamping rod fixed on the sliding table and an upper clamping rod connected with the pretightening force module; the upper clamping rod and the lower clamping rod are used for fixing a netting test piece; the sliding table is fixed at the bottom of the water tank; the vibration excitation module comprises a linear motor sliding table and a driving shaft, and the linear motor sliding table is fixed on the ground outside the water tank; one end of the driving shaft is connected with the linear motor sliding table, the other end of the driving shaft is connected with the sliding table of the clamping module, and the middle of the driving shaft is connected with the water tank through a dynamic sealing device; the vibration excitation module also comprises a central fixed bracket; one end of the central fixing bracket is connected with the driving shaft, and the other end of the central fixing bracket is used for connecting the center of the netting test piece; when the following-flow vibration of the netting test piece in the following-flow direction is simulated, the netting test piece adopts a mode of upper side fixed and lower side horizontal vibration, the clamping direction of the netting test piece is consistent with the displacement direction of a sliding table in a water tank, and the netting test piece is positioned in a vertical plane in a clamping state; the lower side of the netting test piece vibrates along with the displacement of the sliding table; or when the following-flow vibration of the netting test piece in the flow-meeting direction is simulated, the netting test piece adopts a mode that the upper side and the lower side are both fixed and the center position vibrates, the clamping direction of the netting test piece is vertical to the displacement direction of the sliding table in the water tank, and the netting test piece is positioned in the vertical plane in the clamping state; the center of the netting test piece vibrates along with the displacement of the central fixed support.
2. The device for testing contact wear of a metal netting for mariculture according to claim 1, characterized in that: the pre-tightening force module comprises an upper fixing plate, a lower fixing plate and a bolt mounting plate; the lower end surface of the lower fixing plate is fixedly connected with the upper clamping rod; the bolt mounting plate is connected with the upper fixing plate through a clamping bolt; and a force sensor is fixed between the upper end surface of the lower fixing plate and the lower end surface of the bolt mounting plate.
3. The device for testing contact wear of a metal netting for mariculture according to claim 2, characterized in that: the upper fixing plate is fixed on the floor stand; the floor stand is fixed on the ground.
4. A method for quantitatively measuring contact wear of a metallic mesh for mariculture using the test device according to any one of claims 1 to 3, comprising the steps of:
(1) measuring wire diameters of two metal wires at each staggered point of netting test pieceD i j0（，）；i，jIs shown asiGo to the firstjStaggered dots of columns;
(2) carrying out a contact wear test on the netting test piece;
(3) measuring the wire diameters of two metal wires at each staggered point after the testD i j1（，）；
(4) Calculating to obtain the abrasion loss at each mesh staggered pointM （i j），：
(5) Calculating the abrasion loss of the whole netting test pieceM N ：
Wherein the content of the first and second substances,Nthe number of the staggered points on the netting test piece is shown;
the contact wear test is to simulate the flow-following vibration of the netting test piece in the downstream direction and/or the upstream direction by adopting the test device;
when the following-flow vibration of the netting test piece in the following-flow direction is simulated, the netting test piece adopts a mode of upper side fixed and lower side horizontal vibration, the clamping direction of the netting test piece is consistent with the displacement direction of a sliding table in a water tank, and the netting test piece is positioned in a vertical plane in a clamping state; the lower side of the netting test piece vibrates along with the displacement of the sliding table; alternatively, the first and second electrodes may be,
when the following flow vibration of the netting test piece in the incident flow direction is simulated, the netting test piece adopts a mode that the upper side and the lower side are both fixed and the center position vibrates, the clamping direction of the netting test piece is vertical to the displacement direction of the sliding table in the water tank, and the netting test piece is positioned in the vertical plane in the clamping state; the center of the netting test piece vibrates along with the displacement of the central fixed support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111174969.7A CN113607591B (en) | 2021-10-09 | 2021-10-09 | Device and method for testing contact wear of metal net for mariculture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111174969.7A CN113607591B (en) | 2021-10-09 | 2021-10-09 | Device and method for testing contact wear of metal net for mariculture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113607591A CN113607591A (en) | 2021-11-05 |
| CN113607591B true CN113607591B (en) | 2022-02-01 |
Family
ID=78343367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111174969.7A Active CN113607591B (en) | 2021-10-09 | 2021-10-09 | Device and method for testing contact wear of metal net for mariculture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113607591B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854713A (en) * | 2005-04-21 | 2006-11-01 | 中国水产科学研究院东海水产研究所 | Method for testing fishing high-strength polythene filament abrasive resistance |
| CN103743584A (en) * | 2013-12-24 | 2014-04-23 | 河南理工大学 | Metal mesh mechanical property testing device |
| CN105891036A (en) * | 2016-05-23 | 2016-08-24 | 西南交通大学 | Impacting-sliding composite frictional wear testing device and method thereof |
| CN209327104U (en) * | 2018-11-07 | 2019-08-30 | 中国水产科学研究院南海水产研究所 | A kind of alloyed copper etting special fixture for experiment on fatigue properties |
| CN110326573A (en) * | 2019-08-19 | 2019-10-15 | 浙江海洋大学 | A kind of circular platform type wind wave-resisting net casing |
| CN209727671U (en) * | 2018-12-27 | 2019-12-03 | 山东中建西部建设有限公司 | Seawater resistance to erosion experimental simulation device |
| CN111758681A (en) * | 2020-06-15 | 2020-10-13 | 舟山天沐水产科技有限公司 | Device for detecting stress of net piece and purse seine using same |
| CN112414879A (en) * | 2020-11-11 | 2021-02-26 | 上海卫星装备研究所 | Spacecraft locking mechanism vibration friction wear performance test device and method |
| CN113125288A (en) * | 2021-04-20 | 2021-07-16 | 国网河北省电力有限公司电力科学研究院 | Wind-excited vibration wear simulation test device for composite insulation cross arm |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB212026A (en) * | 1923-01-09 | 1924-03-06 | Ernest Reuben Hasnip | Improvements in agitators or dashers for machines for washing clothes and like articles |
| GB665429A (en) * | 1949-11-28 | 1952-01-23 | Paul Grodzinski | Apparatus for testing the wear and abrasion resistance of hard materials |
| GB1308378A (en) * | 1970-07-18 | 1973-02-21 | Secr Defence | Testing apparatus |
| CN109916756A (en) * | 2019-02-28 | 2019-06-21 | 武汉理工大学 | A kind of experimental rig and its test method of test maritime concrete scour & wear resistance energy |
-
2021
- 2021-10-09 CN CN202111174969.7A patent/CN113607591B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854713A (en) * | 2005-04-21 | 2006-11-01 | 中国水产科学研究院东海水产研究所 | Method for testing fishing high-strength polythene filament abrasive resistance |
| CN103743584A (en) * | 2013-12-24 | 2014-04-23 | 河南理工大学 | Metal mesh mechanical property testing device |
| CN105891036A (en) * | 2016-05-23 | 2016-08-24 | 西南交通大学 | Impacting-sliding composite frictional wear testing device and method thereof |
| CN209327104U (en) * | 2018-11-07 | 2019-08-30 | 中国水产科学研究院南海水产研究所 | A kind of alloyed copper etting special fixture for experiment on fatigue properties |
| CN209727671U (en) * | 2018-12-27 | 2019-12-03 | 山东中建西部建设有限公司 | Seawater resistance to erosion experimental simulation device |
| CN110326573A (en) * | 2019-08-19 | 2019-10-15 | 浙江海洋大学 | A kind of circular platform type wind wave-resisting net casing |
| CN111758681A (en) * | 2020-06-15 | 2020-10-13 | 舟山天沐水产科技有限公司 | Device for detecting stress of net piece and purse seine using same |
| CN112414879A (en) * | 2020-11-11 | 2021-02-26 | 上海卫星装备研究所 | Spacecraft locking mechanism vibration friction wear performance test device and method |
| CN113125288A (en) * | 2021-04-20 | 2021-07-16 | 国网河北省电力有限公司电力科学研究院 | Wind-excited vibration wear simulation test device for composite insulation cross arm |
Non-Patent Citations (3)
| Title |
|---|
| 圆形网衣在水流作用下的运动变形特性;黄小华等;《中国水产科学》;20100315(第02期);第312-319页 * |
| 深水网箱箱体用超高强经编网的物理性能研究;石建高等;《渔业信息与战略》;20121125(第04期);第303-309页 * |
| 轴承零件的硬度对其耐磨性的影响;李秀菊;《辽阳石油化工高等专科学校学报》;20001231;第3节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113607591A (en) | 2021-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Loukogeorgaki et al. | 3D Experimental investigation of the structural response and the effectiveness of a moored floating breakwater with flexibly connected modules | |
| Lader et al. | Experimental investigation of forces and geometry of a net cage in uniform flow | |
| Qi et al. | Physical modeling of local scour development around a large-diameter monopile in combined waves and current | |
| CN106950138B (en) | Fiber composite submarine cable abrasion test system and working method thereof | |
| CN106442181A (en) | Fatigue test device for marine riser external corrosion | |
| CN103674479B (en) | Non-smooth surface fluid friction resistance measurement device and method of testing | |
| CN105438399A (en) | Physical model of mooring ship and test method of physical model | |
| CN106546529B (en) | Marine structure stress corrosion testing device under alternation of wetting and drying | |
| CN101526438A (en) | Closed mast strength measurement method and special measurement device | |
| CN107101885A (en) | Acoustic emission detection cable corrosion of coating fatigue crack initiation and the experimental rig of extension | |
| CN113607591B (en) | Device and method for testing contact wear of metal net for mariculture | |
| CN110203327A (en) | A kind of harbour is simultaneous to lean on ship mooring physical model test method | |
| CN106442176A (en) | Anchor smashing test system of submarine cable | |
| Dong et al. | Effects of wave forces on knotless polyethylene and chain-link wire netting panels for marine aquaculture cages | |
| Chuang et al. | Experimental study of force, pressure, and fluid velocity on a simplified coastal building under tsunami bore impact | |
| Maduka et al. | Hydrodynamic effects of biofouling-induced surface roughness–Review and research gaps for shallow water offshore wind energy structures | |
| CN210128930U (en) | Device for testing sea cable armor wire gap corrosion experiment | |
| CN110455704A (en) | A kind of concrete material sulphate-corrosion resistance energy detection method and system | |
| CN106568572A (en) | Ship model coupling acting force measurement apparatus and method thereof | |
| CN206095833U (en) | Testing system is pounded to submarine cable anchor | |
| CN104359700B (en) | FPSO (Floating Production Storage and Offloading System) crude oil transportation system coupling property testing method | |
| CN1587988A (en) | Sample for measuring fatigue crack expansion rate in corrosion liquid and test method | |
| CN112240854A (en) | Experimental system for measuring bending rigidity of metal mesh under pretension force | |
| CN203891027U (en) | Underwater compaction sand pile forming process dynamic testing device | |
| EP2566067A3 (en) | Method and apparatus for signal detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |