CN114414205A - Load and flow field integrated and measuring device - Google Patents
Load and flow field integrated and measuring device Download PDFInfo
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- CN114414205A CN114414205A CN202210069792.2A CN202210069792A CN114414205A CN 114414205 A CN114414205 A CN 114414205A CN 202210069792 A CN202210069792 A CN 202210069792A CN 114414205 A CN114414205 A CN 114414205A
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- 230000006872 improvement Effects 0.000 description 10
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- 239000007788 liquid Substances 0.000 description 6
- 230000000737 periodic effect Effects 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
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- 238000007405 data analysis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 238000012067 mathematical method Methods 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
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Classifications
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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
Abstract
The invention is used in the technical field of fluid mechanics, in particular to a load and flow field comprehensive and measuring device, which comprises a container, wherein the container is of an open structure; the track surrounds the container, the camera shooting device is arranged in the track and can move along the track, and the camera shooting device can lift along the height direction of the container; the laser emitting device is arranged below the container and can move transversely; the cantilever is arranged above the open end of the container and is used for mounting a tested model; and the computer is used for counting and analyzing the information of the laser emitting device and the camera device. The measured model is fixed at the end part of the cantilever, the laser emitting device releases trace particles, so that the vertical sections of the whole flow field are measured by the PIV method, the camera device moves around the track, the camera device can be lifted by a certain height every time the camera device moves around a circle, so that the cross sections of the whole flow field are completely captured, and the captured result is fed back to the computer to obtain the information of the three-dimensional fine flow field.
Description
Technical Field
The invention is used in the technical field of fluid mechanics, and particularly relates to a load and flow field comprehensive and measuring device.
Background
The information of the fine flow field of the marine aircraft has important significance for scientific research of mechanical properties of the marine aircraft, is always an important means for promoting a new mathematical method and a numerical model, and the new mathematical method and the numerical model are power sources for promoting the optimal design of the aircraft.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art, and provides a load and flow field comprehensive and measuring device which can carry out three-dimensional measurement on a fine flow field, thereby forming a three-dimensional holographic result, measuring load information such as force, moment and the like of a measured model, and effectively promoting the optimization design, upgrading and improvement of an aircraft.
The technical scheme adopted by the invention for solving the technical problems is as follows: a load and flow field integrating and measuring device comprises
A container, the container being of an open structure;
the track surrounds the container, a camera device is arranged in the track and can move along the track, and the camera device can be lifted along the height direction of the container;
the laser emitting device is arranged below the container and can move transversely, and the laser emitting device is used for releasing the trace particles;
the cantilever is arranged above the open end of the container, a driving device is arranged on the cantilever, a model fixing device is arranged at the power output end of the driving device, a torque measuring device is arranged on the model fixing device, and the torque measuring device is connected with the power output end of the driving device;
and the computer is used for statistically analyzing the information of the laser emitting device and the camera shooting device.
The technical scheme at least has the following advantages or beneficial effects: during the measurement, the container is filled with liquid medium, the measured model is fixed on the cantilever, the measured model can float on the liquid medium or be submerged in the liquid medium according to the measurement requirement, the laser emitting device releases the trace particles and moves transversely on the horizontal plane, so as to realize the measurement of each vertical section of the whole flow field by the PIV method, simultaneously, the camera device moves around the track, and the camera device can be lifted by a certain height every time the camera device moves around a circle, thereby realizing the complete capture of each cross section of the whole flow field, feeding the captured result back to the computer for data analysis and processing, obtaining the information of the three-dimensional fine flow field, therefore, a three-dimensional holographic result is formed, and the driving device can drive the moment measuring device, so that the moment measuring device can measure load information such as force, moment and the like of the measured model, and the optimal design, upgrading and improvement of the aircraft are effectively promoted.
Further as an improvement of the technical scheme of the invention, the cantilever is of a telescopic arm structure.
As a further improvement of the technical solution of the present invention, the driving device is mounted at the telescopic end of the cantilever.
As a further improvement of the technical scheme of the invention, the driving device comprises a motor, a driving wheel and a bevel gear, the driving wheel is mounted at the power output end of the motor, the driving wheel is meshed with the bevel gear, and the torque measuring device is fixedly connected with the bevel gear.
As a further improvement of the technical scheme of the invention, the container is supported and fixed by a supporting frame.
Further as an improvement of the technical scheme of the invention, a sliding groove is transversely arranged at the bottom of the supporting frame, a sliding rod is assembled in the sliding groove, the sliding groove is vertical to the length direction of the sliding rod, and the laser emitting device is installed on the sliding rod.
As a further improvement of the technical scheme of the invention, the laser emitting device can slide along the length direction of the sliding rod.
As a further improvement of the technical solution of the present invention, the present invention further comprises a control device, wherein the cantilever is mounted on the control device, and the control device can control the cantilever, the image pickup device, the laser emitting device, and the driving device.
Further as an improvement of the technical scheme of the invention, the device also comprises a motion generating device, wherein the motion generating device is used for receiving the signal of the computer and sending a command to the control device.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic diagram of another perspective of an embodiment of the present invention;
fig. 4 is a partially enlarged view at B in fig. 3.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention.
In the invention, the meaning of "a plurality" is one or more, the meaning of "a plurality" is more than two, and the terms of "more than", "less than", "more than" and the like are understood to exclude the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.
Referring to fig. 1, 2, 3 and 4, the invention provides a load and flow field integrating and measuring device, which comprises a container 1, a track 2, a laser emitting device 3, a cantilever 4 and a computer 5.
The container 1 is a glass cylinder body formed by bonding high-strength glass through an adhesive, and the top of the container 1 is of an open structure.
The track 2 surrounds the container 1, the image pickup device 6 is installed in the track 2, the image pickup device 6 can move along the track 2, and the image pickup device 6 can be lifted along the height direction of the container 1.
In some embodiments, the track 2 is an annular track 2 surrounding the container 1 in a closed loop, the track 2 is provided with a moving device 7, the image capturing device 6 is mounted on the moving device 7 through a lifting mechanism 8, and the moving device 7 can slide along the track 2 to drive the image capturing device 6 to move around the container 1.
In addition, every time the camera device 6 winds the track 2 for one circle, the lifting mechanism 8 can lift the camera device 6 for a certain height, so that the camera device 6 can capture and shoot in an increasing mode in sequence in the process of winding the container 1.
Specifically, the laser emitting device 3 is used for releasing trace particles to perform PIV method measurement.
A cantilever 4 is arranged above the open end of the container 1, and the cantilever 4 is used for mounting a model to be tested.
Specifically, the end of the cantilever 4 is provided with a U-shaped frame 9, the opening of the U-shaped frame 9 faces downwards, the opening end of the U-shaped frame 9 is provided with a fixing rod 10, and the model to be tested is fixed on the fixing rod 10.
The computer 5 is used for statistically analyzing the information of the laser emitting device 3 and the camera device 6.
In the measuring process, the container 1 is filled with a liquid medium, the measured model is fixed on a fixing rod 10 at the end part of the cantilever 4, the measured model can float on the liquid medium or be submerged in the liquid medium according to the measurement requirement, the laser emitting device 3 releases tracer particles and transversely moves on the horizontal plane, so that the measurement of the PIV method is carried out on each vertical section of the whole flow field, meanwhile, the camera device 6 moves around the track 2, and each round of the round.
In order to support the container 1, the container 1 is supported and fixed by a support frame 11, specifically, the support frame 11 is a rectangular parallelepiped frame structure made of aluminum alloy, and the container 1 is installed in the support frame 11.
Referring to fig. 2, in some embodiments, a sliding groove 12 is formed at the bottom of the supporting frame 11, the sliding groove 12 extends along a horizontal direction, the extending direction of the sliding groove 12 is perpendicular to the length direction of a sliding rod 13, the laser emitting device 3 is mounted on the sliding rod 13, two ends of the sliding rod 13 are respectively slidably mounted in the sliding groove 12, and the sliding rod 13 slides in the sliding groove 12 to drive the laser emitting device 3 to horizontally move on a plane, so as to perform PIV tracing measurement on each vertical section of the model to be measured.
Further, the laser emitting device 3 is slidably mounted on the sliding rod 13, the laser emitting device 3 can slide on the sliding rod 13, so that the laser emitting device 3 can move in two directions, namely the direction of the sliding groove 12 and the direction of the sliding rod 13, the sliding groove 12 and the sliding rod 13 are equivalent to the X axis and the Y axis of a coordinate system structure, and the laser emitting device 3 can move to any position of a horizontal plane for tracing measurement, so that PIV tracing measurement is more precise.
In some embodiments, the cantilever 4 is a telescopic arm structure, so that the cantilever 4 can realize the translation of the measured model in the horizontal plane through stretching, further adjust the position of the measured model, and realize the simulation effect under the working conditions of different positions.
Furthermore, a driving device 14 is installed at the telescopic end of the cantilever 4, a model fixing device is installed at the power output end of the driving device 14, and the model fixing device can be driven to rotate through the driving device 14, so that the measured model can be driven to rotate in the measuring process, the position of the measured model can be changed, and the effect of simulating different working conditions can be realized.
Specifically, drive arrangement 14 installs in one side of U type frame 9, and dead lever 10 rotates and installs the open end at U type frame 9, and the power take off end at drive arrangement 14 is connected to the one end of dead lever 10, can drive dead lever 10 rotatory through drive arrangement 14 to make and fix the measured model on dead lever 10 and can rotate, realize the simulation effect of different position operating modes.
Referring to fig. 4, in some embodiments, a torque measuring device 15 is mounted on the mold fixture, and the torque measuring device 15 is connected to the power output end of the driving device 14.
In the measurement process, the driving device 14 can drive the moment measuring device 15, so that the moment measuring device 15 can measure load information such as force and moment of the measured model.
In the present invention, the driving device 14 includes a motor 140, a driving wheel 141 and a bevel gear 142, the driving wheel 141 is installed at the power output end of the motor 140, the driving wheel 141 is meshed with the bevel gear 142, and the torque measuring device 15 is fixedly connected with the bevel gear 142.
One end of the fixing rod 10 is fixed on the moment measuring device 15, the moment measuring device 15 is fixedly connected with the bevel gear 142, the motor 140 drives the driving wheel 141 to rotate, so that the driving wheel 141 and the bevel gear 142 are in meshing transmission, and the bevel gear 142 drives the fixing rod 10 and the tested model to rotate together.
In the measuring process, the movement working conditions of the measured model under unidirectional non-periodic load, unidirectional periodic load, direction-changing non-periodic load and direction-changing periodic load can be realized by adjusting the rotation mode, the rotation frequency and the rotation speed of the motor 140, and the simulation of different movement working conditions of the measured model is realized.
In some embodiments, the present invention further comprises a control device 16, the cantilever 4 is mounted on the control device 16, and the control device 16 is capable of controlling the cantilever 4, the image pickup device 6, the laser emitting device 3, and the driving device 14.
Further, the present invention also includes a motion generating device 17, and the motion generating device 17 is used for receiving signals of the computer 5 and sending commands to the control device 16.
In the measuring process, a signal is issued to the motion generating device 17 through the computer 5, the motion generating device 17 transmits the signal to the control device 16, the cantilever 4 is controlled by the control device 16 to perform telescopic motion in a horizontal plane, the position of the measured model is further adjusted, simulation of working conditions at different positions is realized, after the measured model is adjusted to the working condition at the corresponding position, the computer 5 issues the signal to the motion generating device 17, the motion generating device 17 transmits the signal to the control device 16, the control device 16 controls the motor 140 of the driving device 14 to rotate, the motor 140 drives the driving wheel 141, the driving wheel 141 is in meshing transmission with the bevel gear 142, so that the bevel gear 142 drives the measured model to rotate, wherein the control device 16 adjusts the measured model to perform unidirectional and direction-changing periodic load and aperiodic load motion by controlling the rotation mode, the rotation frequency and the rotation speed of the motor 140, therefore, the simulation of different motion working conditions of the tested model is realized, when the driving device 14 drives the tested model to move, the computer 5 issues a signal to the motion generating device 17, the motion generating device 17 transmits the signal to the control device 16, the control device 16 controls the laser emitting device 3 to move and simultaneously release PIV particles for tracing, the laser emitting device 3 controls the sliding rod 13 to move in the sliding chute 12, and after each translation of one position, the laser emitting device 3 moves once along the length direction of the sliding rod 13, so that the PIV method measurement is realized for each vertical section of the whole flow field, meanwhile, the computer 5 issues a signal to the motion generating device 17, the motion generating device 17 transmits the signal to the control device 16, the control device 16 controls the camera device 6 to move around the track 2, and each time the camera device 6 moves around the track 2 for one circle, the lifting mechanism 8 drives the camera device 6 to rise to a certain height, and then, the complete capture of each cross section of the whole flow field is realized, the final capture result can be fed back to the computer 5, the computer 5 obtains a corresponding three-dimensional fine flow field through data analysis and processing, and the fine flow field measurement under different working conditions can be realized, so that high-precision holographic data is provided for scientific research.
In addition, in the analysis process of the computer 5, if there is capture unclear or an analysis display error, the computer 5 will feed back the error information to the motion generating device 17 again, the motion generating device 17 will transmit to the control device 16, and the control device 16 will control the laser emitting device 3 and the camera device 6 to move to the corresponding positions for capturing again until the flow field is clear and no error information exists.
Of course, the present invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (9)
1. A load and flow field are synthesized and measuring device which characterized in that: comprises that
A container, the container being of an open structure;
the track surrounds the container, a camera device is arranged in the track and can move along the track, and the camera device can be lifted along the height direction of the container;
the laser emitting device is arranged below the container and can move transversely, and the laser emitting device is used for releasing the trace particles;
the cantilever is arranged above the open end of the container, a driving device is arranged on the cantilever, a model fixing device is arranged at the power output end of the driving device, a torque measuring device is arranged on the model fixing device, and the torque measuring device is connected with the power output end of the driving device;
and the computer is used for statistically analyzing the information of the laser emitting device and the camera shooting device.
2. The load and flow field integrating and measuring device of claim 1 wherein: the cantilever is of a telescopic arm structure.
3. The load and flow field integrating and measuring device of claim 2 wherein: the driving device is arranged at the telescopic end of the cantilever.
4. The load and flow field integrating and measuring device of claim 1 wherein: the driving device comprises a motor, a driving wheel and a bevel gear, the driving wheel is installed at the power output end of the motor, the driving wheel is meshed with the bevel gear, and the torque measuring device is fixedly connected with the bevel gear.
5. The load and flow field integrating and measuring device of claim 1 wherein: the container is supported and fixed by a support frame.
6. The load and flow field integrating and measuring device of claim 5 wherein: the laser emitter is characterized in that a sliding groove is transversely formed in the bottom of the supporting frame, a sliding rod is assembled in the sliding groove, the sliding groove is perpendicular to the length direction of the sliding rod, and the laser emitter is installed on the sliding rod.
7. The load and flow field integrating and measuring device of claim 6 wherein: the laser emitting device can slide along the length direction of the sliding rod.
8. The load and flow field integrating and measuring device of claim 1 wherein: the cantilever, the camera shooting device, the laser emitting device and the driving device can be controlled by the control device.
9. The load and flow field integrating and measuring device of claim 8 wherein: the device also comprises a motion generating device which is used for receiving signals of the computer and sending commands to the control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210069792.2A CN114414205A (en) | 2022-01-21 | 2022-01-21 | Load and flow field integrated and measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210069792.2A CN114414205A (en) | 2022-01-21 | 2022-01-21 | Load and flow field integrated and measuring device |
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| Publication Number | Publication Date |
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| CN114414205A true CN114414205A (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210069792.2A Pending CN114414205A (en) | 2022-01-21 | 2022-01-21 | Load and flow field integrated and measuring device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101453213B1 (en) * | 2013-10-15 | 2014-10-23 | 한국해양과학기술원 | Method for Measuring Propeller Wake at Specific Angular Position using PIV in Towing Tank |
| CN104777164A (en) * | 2015-03-30 | 2015-07-15 | 天津大学 | Large-size measuring experimental apparatus and method for air flow in cabin based on PIV |
| CN107870079A (en) * | 2017-11-06 | 2018-04-03 | 哈尔滨工程大学 | Flow field survey system and measuring method under a kind of model elevating movement |
| CN108918080A (en) * | 2018-03-08 | 2018-11-30 | 哈尔滨工程大学 | Propeller wake field measuring system under a kind of multi-state |
| CN109580167A (en) * | 2018-12-24 | 2019-04-05 | 北京理工大学 | A kind of high-speed camera suitable for moving boundary flow field and PIV synchronized measurement system |
| CN109612682A (en) * | 2018-12-24 | 2019-04-12 | 上海理工大学 | A kind of jet stream movement measuring device in scaled model based on PIV |
| CN112146837A (en) * | 2020-09-22 | 2020-12-29 | 西南石油大学 | Experimental device and method for simulating vibration slapping coupling response of submarine suspended span pipe |
| CN113804398A (en) * | 2021-08-23 | 2021-12-17 | 西北工业大学 | Cluster large-scale three-dimensional flow field and hydrodynamic force synchronous measurement system and test method |
-
2022
- 2022-01-21 CN CN202210069792.2A patent/CN114414205A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101453213B1 (en) * | 2013-10-15 | 2014-10-23 | 한국해양과학기술원 | Method for Measuring Propeller Wake at Specific Angular Position using PIV in Towing Tank |
| CN104777164A (en) * | 2015-03-30 | 2015-07-15 | 天津大学 | Large-size measuring experimental apparatus and method for air flow in cabin based on PIV |
| CN107870079A (en) * | 2017-11-06 | 2018-04-03 | 哈尔滨工程大学 | Flow field survey system and measuring method under a kind of model elevating movement |
| CN108918080A (en) * | 2018-03-08 | 2018-11-30 | 哈尔滨工程大学 | Propeller wake field measuring system under a kind of multi-state |
| CN109580167A (en) * | 2018-12-24 | 2019-04-05 | 北京理工大学 | A kind of high-speed camera suitable for moving boundary flow field and PIV synchronized measurement system |
| CN109612682A (en) * | 2018-12-24 | 2019-04-12 | 上海理工大学 | A kind of jet stream movement measuring device in scaled model based on PIV |
| CN112146837A (en) * | 2020-09-22 | 2020-12-29 | 西南石油大学 | Experimental device and method for simulating vibration slapping coupling response of submarine suspended span pipe |
| CN113804398A (en) * | 2021-08-23 | 2021-12-17 | 西北工业大学 | Cluster large-scale three-dimensional flow field and hydrodynamic force synchronous measurement system and test method |
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Application publication date: 20220429 |