CN201285344Y - Rotary disc type fluid friction resistance tester - Google Patents
Rotary disc type fluid friction resistance tester Download PDFInfo
- Publication number
- CN201285344Y CN201285344Y CNU200820186442XU CN200820186442U CN201285344Y CN 201285344 Y CN201285344 Y CN 201285344Y CN U200820186442X U CNU200820186442X U CN U200820186442XU CN 200820186442 U CN200820186442 U CN 200820186442U CN 201285344 Y CN201285344 Y CN 201285344Y
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- drag reduction
- friction resistance
- support
- rotating
- type fluid
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Abstract
The utility model discloses a rotating disk type fluid frictional resistance testing instrument which has a structure that a variable-frequency motor rotating shaft positioned on a support is connected with a rotating shaft of a rotating speed and torque sensor, the other rotating shaft of the rotating speed and torque sensor is connected with a rotating disk shaft, a rotating disk is positioned in a container arranged on the bottom of the support, the signal output end of a frequency converter is connected with a variable-frequency motor, and a load bearing is arranged on a testing table positioned in the middle of the support and is used for supporting and fixing the moment of the rotating disk. The utility model has simple structure, easy sampling and convenient test, can reliably measure the friction resistance of a circular disk surface in the fluid when a circular disk sample rotates, can accurately and reliably estimate the drag reduction property of polymer dilute solution, drag reduction coating, elastic materials, drag reduction compounding materials, and the like, and studies the drag reduction regulation of the polymer dilute solution, the drag reduction coating, the elastic materials, the drag reduction compounding materials, and the like in different fluid states and under the constraint condition.
Description
Technical field
The utility model relates to a kind of fluid friction resistance measurement instrument, particularly a kind of rotating disc type fluid friction resistance measurement instrument.
Background technology
In fields such as industry, military affairs, urban construction, the long distance of liquid (water, oil etc.) is carried, and the motion of the military device (submarine, torpedo etc.) of diving owing to the existence of resistance causes a large amount of energy loss, significantly reduces its efficient.Therefore, fluid resistance analysis of being correlated with and minimizing fluid resistance, movement velocity and task performance for reducing energy dissipation, improvement and optimization working condition, raising underwater sailing body, boats and ships have extremely important strategy and practical significance.
At present, domestic many colleges and universities or research institute adopt the water hole experimental system usually for the fluid resistance test, and such experimental system design is complicated, needs multiple precision components, and it is big to take up room, and builds, safeguards and use the costly of this type systematic.People such as Wang of Tsing-Hua University family financial situation have designed a kind of detector for round cross section sample wall surface fluid friction resistance, this experimental provision can be used for measuring the wall fluid frictional resistance in the fluid resistance, but this experimental provision structure is complicated, specimen is round cross section, processing inconvenient (Chinese patent application, publication number: CN101050995A).
Summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, sample is easily made, convenient test, can reliable measurements disc surfaces suffered frictional resistance in fluid during the rotation of disk sample, estimate the rotating disc type fluid friction resistance measurement instrument of various drag reduction technology drag-reduction effects.
The technical solution that realizes the utility model purpose is: the variable-frequency motor rotation axis that is positioned at support top in this testing tool is connected with the rotating shaft of torque and speed sensors, another rotating shaft of torque and speed sensors links to each other with turntable shaft, rotating disk is positioned at the container of frame bottom, the signal output part of frequency converter links to each other with variable-frequency motor, the load bearing is placed on the test board of mid-stent, is used for the motion of support fixation rotating disk.
The present invention compared with prior art, its remarkable advantage: 1, simple in structure, mechanism stable, negative effects such as mechanical vibration are little, sample is easily made, and are convenient to production and processing; 2, measuring accuracy height, selected high precision moment of torsion rotating speed torque value that power measuring is surveyed can be as accurate as ± 0.001N.m; , trial stretch is wide, can be used for the research of the drag reduction rule of multiple material; Thereby 4, adopt the frequency conversion instrument can regulate disc rotation speed control fluid Reynolds number easily in the experimentation, can increase according to customer requirements and join other devices, the function of this tester is further expanded.
Description of drawings
Accompanying drawing is a sectional structure chart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
The rotating disc type fluid friction resistance measurement instrument that the utility model is announced, variable-frequency motor 1 rotation axis that is positioned at support 6 tops in this tester is connected with the rotating shaft of torque and speed sensors 8, another rotating shaft of torque and speed sensors 8 links to each other with turntable shaft 4, rotating disk 5 is positioned at the container 10 of support 6 bottoms, the signal output part of frequency converter 7 links to each other with variable-frequency motor 1, load bearing 3 is placed on the test board 9 at support 6 middle parts, is used for the motion of support fixation rotating disk 5.Support 6 can be steelframe, be fixed with corrosion resistant plate on the steelframe, variable-frequency motor 1 links to each other by connector 2 with torque and speed sensors 8, and torque and speed sensors 8 links to each other by connector 11 with turntable shaft 4, rotating disk 5 is a round turntable, and rotating disk 5 surfaces are provided with groove or through hole.After in container 10, injecting fluid, closed container.Rotating speed size by frequency converter 7 controls and adjusting variable-frequency motor 1, when disk 5 rotates in fluid, its wall interacts because of the existence of frictional resistance and fluid in the container 10, promptly produce the surface shear resistance, thereby react on turntable shaft 4 and form certain moment of resistance, measure the torque value of rotating disk 5 under certain rotating speed by torque and speed sensors 8 and obtain this fluid resistance size and variation thereof.Be transferred on moment of torsion/rotating speed/power torque gauge by the electric signal of data line torque and speed sensors 8 moment of torsion of surveying; Or use the computer system that moment of torsion card program is housed to gather moment of torsion, rotating speed and performance number, and can be by the change curve of this testing software real-time rendering moment of resistance value.The utility model can produce the turbulent fluid of high reynolds number and accurately measure the fluid friction resistance by the high-speed rotation of disk 5 when work, Reynolds number can be up to 1.23 * 10 under the experiment condition
6, the torque value of surveying can be as accurate as ± 0.001N.m when torque and speed sensors 8 is selected high precision moment of torsion rotating speed power measuring for use, makes measured value reach higher precision.Thereby the rotating speed that can regulate rotating disk 5 by frequency converter 7 is easily controlled the fluid Reynolds number, increases RS232, RS485 serial communication interface, CAN industrial field bus interface or the USB USB (universal serial bus) of joining standard according to customer requirements.RS232, USB can carry out communication easily with the PC computing machine, realized that computing machine gathers automatically to the digital control and experiment value of rotating speed, can also pass through RS485, CAN bus interface instrument and other equipment and constitute network, realize further expansion this tester function.Material by changing rotating disk and size and shape can obtain the test figure of various materials in different fluid easily, make this tester can estimate the resistance reducing performance of dilute polymer, drag reduction coating, resilient material and drag reduction compound substance etc. accurately, reliably, study their drag reduction rules under different fluid state and constraint condition.
Claims (6)
1, a kind of rotating disc type fluid friction resistance measurement instrument, it is characterized in that: variable-frequency motor [1] rotation axis that is positioned at support [6] top in this tester is connected with the input end of torque and speed sensors [8], another input end of torque and speed sensors [8] links to each other with turntable shaft [4], rotating disk [5] is positioned at the container [10] of support [6] bottom, the signal output part of frequency converter [7] links to each other with variable-frequency motor [1], load bearing [3] is placed on the test board [9] at support [6] middle part, is used for the motion of support fixation rotating disk [5].
2, rotating disc type fluid friction resistance measurement instrument according to claim 1, it is characterized in that: described support [6] is a steelframe, is fixed with corrosion resistant plate on the steelframe.
3, rotating disc type fluid friction resistance measurement instrument according to claim 1 is characterized in that described variable-frequency motor [1] links to each other by connector [2] with torque and speed sensors [8].
4, rotating disc type fluid friction resistance measurement instrument according to claim 1 is characterized in that described torque and speed sensors [8] links to each other by connector [11] with turntable shaft [4].
5, rotating disc type fluid friction resistance measurement instrument according to claim 1 is characterized in that described rotating disk [5] is for circular.
6, rotating disc type fluid friction resistance measurement instrument according to claim 1 is characterized in that described rotating disk [5] surface is provided with groove or through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820186442XU CN201285344Y (en) | 2008-11-13 | 2008-11-13 | Rotary disc type fluid friction resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820186442XU CN201285344Y (en) | 2008-11-13 | 2008-11-13 | Rotary disc type fluid friction resistance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201285344Y true CN201285344Y (en) | 2009-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820186442XU Expired - Fee Related CN201285344Y (en) | 2008-11-13 | 2008-11-13 | Rotary disc type fluid friction resistance tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN201285344Y (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858840A (en) * | 2010-06-02 | 2010-10-13 | 大连海事大学 | Insertion type hull-bottom antifouling coating dynamic test rotating disc |
| CN102162766A (en) * | 2010-12-15 | 2011-08-24 | 中国船舶重工集团公司第七一○研究所 | Durability test device of contrary rotating propulsion system in long underwater voyage |
| CN102226736A (en) * | 2011-04-11 | 2011-10-26 | 哈尔滨工程大学 | Testing apparatus for evaluating drag-reduction effects of bionic non-smooth surface and bionic jet surface |
| CN102564939A (en) * | 2011-12-23 | 2012-07-11 | 中国矿业大学 | Gasket sliding friction testing machine for mine friction hoisting machine |
| CN103471806A (en) * | 2013-09-03 | 2013-12-25 | 武汉理工大学 | Rotary drum type fluid friction resistance tester |
| CN103512844A (en) * | 2013-10-09 | 2014-01-15 | 哈尔滨工程大学 | Nonsmooth surface fluid friction resistance testing device and nonsmooth surface anti-drag effect evaluating method |
| CN103674480A (en) * | 2013-12-18 | 2014-03-26 | 哈尔滨工程大学 | Test device and method for evaluating resistance reduction effect of bionic non-smooth surface rotating disc |
| CN103759919A (en) * | 2014-01-21 | 2014-04-30 | 哈尔滨工程大学 | Device and method for testing biomimetic jet surface fluid frictional resistance |
| CN103776613A (en) * | 2014-01-13 | 2014-05-07 | 哈尔滨工程大学 | Testing device and method for assessing drag reduction performance of bionic jet-flow surface |
| CN105181196A (en) * | 2015-09-08 | 2015-12-23 | 中国人民解放军国防科学技术大学 | Fluid friction moment measuring device |
| CN107036937A (en) * | 2017-05-25 | 2017-08-11 | 江苏大学 | Sand apparent viscosity measurement apparatus and measuring method after one kind liquefaction |
| CN108168865A (en) * | 2017-12-25 | 2018-06-15 | 河北科技大学 | A kind of changing load rotary shaft testing machine |
| CN109282964A (en) * | 2018-10-16 | 2019-01-29 | 浙江工业大学 | A kind of achievable bionic non-smooth surface is solid/solid-liquid wall surface between frictional resistance test device |
| CN110118626A (en) * | 2019-05-14 | 2019-08-13 | 大连海事大学 | Bottom-sitting type turns round hydrodynamic measurement system and its measurement method |
| CN111721496A (en) * | 2019-03-18 | 2020-09-29 | 中国科学院宁波材料技术与工程研究所 | Resistance testing device and method under high Reynolds number in fluid |
| CN112858586A (en) * | 2021-01-13 | 2021-05-28 | 青岛卓润智能科技有限公司 | Rapid testing device for resistance reduction performance of large Reynolds number and detection method thereof |
| CN114878054A (en) * | 2022-06-16 | 2022-08-09 | 中国船舶科学研究中心 | Torque measuring device and method applied to material resistance reduction performance test |
| CN116642825A (en) * | 2023-03-17 | 2023-08-25 | 清华大学 | System and method for measuring friction resistance of solid-liquid interface |
-
2008
- 2008-11-13 CN CNU200820186442XU patent/CN201285344Y/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858840A (en) * | 2010-06-02 | 2010-10-13 | 大连海事大学 | Insertion type hull-bottom antifouling coating dynamic test rotating disc |
| CN102162766A (en) * | 2010-12-15 | 2011-08-24 | 中国船舶重工集团公司第七一○研究所 | Durability test device of contrary rotating propulsion system in long underwater voyage |
| CN102226736A (en) * | 2011-04-11 | 2011-10-26 | 哈尔滨工程大学 | Testing apparatus for evaluating drag-reduction effects of bionic non-smooth surface and bionic jet surface |
| CN102564939B (en) * | 2011-12-23 | 2014-07-16 | 中国矿业大学 | Gasket sliding friction testing machine for mine friction hoisting machine |
| CN102564939A (en) * | 2011-12-23 | 2012-07-11 | 中国矿业大学 | Gasket sliding friction testing machine for mine friction hoisting machine |
| CN103471806A (en) * | 2013-09-03 | 2013-12-25 | 武汉理工大学 | Rotary drum type fluid friction resistance tester |
| CN103471806B (en) * | 2013-09-03 | 2016-05-11 | 武汉理工大学 | A kind of drum-type fluid friction resistance tester |
| CN103512844A (en) * | 2013-10-09 | 2014-01-15 | 哈尔滨工程大学 | Nonsmooth surface fluid friction resistance testing device and nonsmooth surface anti-drag effect evaluating method |
| CN103674480B (en) * | 2013-12-18 | 2016-01-27 | 哈尔滨工程大学 | The test method of assessment bionic non-smooth surface rotating circular disk drag-reduction effect |
| CN103674480A (en) * | 2013-12-18 | 2014-03-26 | 哈尔滨工程大学 | Test device and method for evaluating resistance reduction effect of bionic non-smooth surface rotating disc |
| CN103776613A (en) * | 2014-01-13 | 2014-05-07 | 哈尔滨工程大学 | Testing device and method for assessing drag reduction performance of bionic jet-flow surface |
| CN103759919B (en) * | 2014-01-21 | 2016-01-27 | 哈尔滨工程大学 | Biomimetic jet surface fluid frictional resistance method of testing |
| CN103759919A (en) * | 2014-01-21 | 2014-04-30 | 哈尔滨工程大学 | Device and method for testing biomimetic jet surface fluid frictional resistance |
| CN105181196B (en) * | 2015-09-08 | 2018-01-16 | 中国人民解放军国防科学技术大学 | The measurement apparatus of fluid friction torque |
| CN105181196A (en) * | 2015-09-08 | 2015-12-23 | 中国人民解放军国防科学技术大学 | Fluid friction moment measuring device |
| CN107036937A (en) * | 2017-05-25 | 2017-08-11 | 江苏大学 | Sand apparent viscosity measurement apparatus and measuring method after one kind liquefaction |
| CN108168865A (en) * | 2017-12-25 | 2018-06-15 | 河北科技大学 | A kind of changing load rotary shaft testing machine |
| CN108168865B (en) * | 2017-12-25 | 2023-07-04 | 河北科技大学 | Variable load rotation axis testing machine |
| CN109282964A (en) * | 2018-10-16 | 2019-01-29 | 浙江工业大学 | A kind of achievable bionic non-smooth surface is solid/solid-liquid wall surface between frictional resistance test device |
| CN111721496A (en) * | 2019-03-18 | 2020-09-29 | 中国科学院宁波材料技术与工程研究所 | Resistance testing device and method under high Reynolds number in fluid |
| CN110118626A (en) * | 2019-05-14 | 2019-08-13 | 大连海事大学 | Bottom-sitting type turns round hydrodynamic measurement system and its measurement method |
| CN112858586A (en) * | 2021-01-13 | 2021-05-28 | 青岛卓润智能科技有限公司 | Rapid testing device for resistance reduction performance of large Reynolds number and detection method thereof |
| CN114878054A (en) * | 2022-06-16 | 2022-08-09 | 中国船舶科学研究中心 | Torque measuring device and method applied to material resistance reduction performance test |
| CN116642825A (en) * | 2023-03-17 | 2023-08-25 | 清华大学 | System and method for measuring friction resistance of solid-liquid interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20111113 |