CN212321040U - Test device for measuring wave motion and load response of non-navigational-speed floating body - Google Patents
Test device for measuring wave motion and load response of non-navigational-speed floating body Download PDFInfo
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- CN212321040U CN212321040U CN202020511342.0U CN202020511342U CN212321040U CN 212321040 U CN212321040 U CN 212321040U CN 202020511342 U CN202020511342 U CN 202020511342U CN 212321040 U CN212321040 U CN 212321040U
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Abstract
The utility model discloses a measure test device that does not have navigation speed body wave motion and load response, include: the test platform, float and locate the body and at least one test component of awaiting measuring in the water environment, test platform is located one side of water environment, last supporting component and the under bracing subassembly of being equipped with of test platform, test component is including drawing the piece, sensing piece and data acquisition unit, the one end and the piece of drawing of sensing piece are connected, the other end is connected with last supporting component, after the under bracing subassembly was walked around to the other end of drawing the piece, and be connected with the body of awaiting measuring through the mounting, the data acquisition unit is connected with sensing piece electricity, in order to gather and save the test data of the body of awaiting measuring. The utility model discloses a test device structural design is simple, the independence is strong and rationally distributed, can effectively overcome because the measurement difficulty that the second order drift motion arouses to higher precision measurement does not have the motion response of navigational speed body in the wave, still can record the average drift force of second order wave simultaneously.
Description
Technical Field
The utility model relates to a boats and ships and the experimental technical field of ocean engineering, particularly, in particular to measure test device that does not have navigational speed body wave motion and load response.
Background
In the field of ship and ocean engineering, model tests play an increasingly important role. The test result can be used for testing the correctness of theoretical analysis, can also be used as a test basis of a numerical simulation method, and can also be used as a judgment standard for evaluating the superiority of a new technology, so that the model test becomes an indispensable important component in the fields of scientific research and engineering application.
Under the effect of wave force, the total motion of body can be regarded as the stack of average static displacement, wave frequency oscillatory motion and low frequency oscillatory motion three, wherein: the average drift force of the second-order waves causes the average static displacement, the first-order wave force causes the wave frequency oscillation motion, and the second-order slow drift wave force causes the low-frequency oscillation motion. In the test water pool, under the action of waves, the floating body generates drift motion due to the average drift force of the second-order waves, and the drift motion can enable the floating body to drift out of the measuring range of the test measuring instrument, so that the test cannot be carried out.
In order to test the normal operation, the average static displacement of the floating body needs to be limited, and the floating body is fixed in the measuring range of a test and measurement instrument. However, if the fixing method is not properly selected, the wave frequency oscillation motion and the low frequency oscillation motion are affected, so that the test data is distorted, and the test result is affected.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. In view of this, the utility model discloses need to provide a structural design is simple, the independence is strong and rationally distributed, can effectively overcome because the measurement difficulty that second order drift motion arouses to the motion response of the no navigational speed body of higher precision measurement in the wave, still can record the no navigational speed body wave motion of measurement of the average drift force of second order wave and load response's test device simultaneously.
The utility model provides a measure test device that does not have navigation speed body wave motion and load response, include: the testing device comprises a testing platform, a to-be-tested floating body and at least one testing component, wherein the to-be-tested floating body and the at least one testing component are arranged in a water environment in a floating mode, the testing platform is located on one side of the water environment, an upper supporting component and a lower supporting component are arranged on the testing platform, the testing component comprises a traction piece, a sensing piece and a data acquisition unit, one end of the sensing piece is connected with the traction piece, the other end of the sensing piece is connected with the upper supporting component, the other end of the traction piece bypasses behind the lower supporting component and is connected with the to-be-tested floating body through a fixing piece, and the data acquisition unit is arranged on the testing platform and is electrically connected with.
According to the utility model discloses an embodiment, test platform include horizontal test platform and with the vertical test platform that horizontal test platform is connected, wherein go up supporting component with the under bracing subassembly is established on the vertical test platform, the data acquisition unit is established on the horizontal test platform.
According to the utility model discloses an embodiment, go up the supporting component and include the upper bracket frame and establish go-between on the upper bracket frame.
According to the utility model discloses an embodiment, the under bracing subassembly includes the under bracing frame and establishes fixed pulley on the under bracing frame, the upper bracing frame with the line of under bracing frame with the horizontal plane mutually perpendicular setting of water environment.
According to an embodiment of the invention, the traction member comprises a spring connected with the sensing member, a wire rope connected with the spring.
According to an embodiment of the invention, the sensing element is a tension sensor.
According to the utility model discloses an embodiment, the data acquisition unit is the data acquisition appearance, be equipped with the wireless data transmission module with computer radio signal connection in the data acquisition appearance.
According to an embodiment of the present invention, the fixing member is a fixing ring provided on the floating body to be tested.
According to the utility model discloses an embodiment, solid fixed ring with the body threaded connection that awaits measuring.
According to the utility model discloses an embodiment, the test subassembly is the even number, and the symmetry is established on the body of awaiting measuring.
The test device for measuring wave motion and load response of the non-navigational-speed floating body has simple structural design and can be realized by utilizing the conventional instruments and equipment in the conventional laboratory; the independence is strong, no special requirements are required for equipment, tools, instruments and the like in a model test, and the model test is suitable for the model test needing to measure the motion response of the non-navigational-speed floating body; the layout in the test device is reasonable, the data acquisition instrument transmits data by adopting wireless signals, and complex connecting lines in the test are avoided.
Drawings
Fig. 1 is a schematic structural diagram of a test device for measuring wave motion and load response of a non-navigational-speed floating body according to the present invention.
Figure 2 is a partial top view of the general arrangement of a test apparatus for measuring the wave motion and load response of a non-navigational floating body according to the present invention.
Reference numerals: 1-a test platform; 2-water environment; 3-a floating body to be tested; 4-a test component; 5-an upper support assembly; 6-a lower support assembly; 7-a fixing member; 11-a horizontal test bench; 12-a vertical test stand; 41-a traction member; 42-a sensing member; 43-a data acquisition unit; 51-upper support frame; 52-connecting ring; 61-lower support frame; 62-a fixed pulley; 411-a spring; 412-steel rope.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 and 2, a test device for measuring wave motion and load response of a non-navigational-speed floating body comprises: the device comprises a testing platform 1, a floating body to be tested 3 floating in a water environment 2 and at least one testing component 4, wherein the testing platform 1 is positioned at one side of the water environment 2, wherein the water environment 2 can be a water pool or a water tank, the test platform 1 is provided with an upper support component 5 and a lower support component 6, the test component 4 comprises a traction part 41, a sensing part 42 and a data acquisition unit 43, one end of the sensing part 42 is connected with the traction part 41, the other end is connected with the upper support component 5, after the other end of the traction part 41 bypasses the lower support component 6, and is connected with the floating body 3 to be tested through a fixing piece 7, a data acquisition unit 43 is arranged on the test platform 1 and is electrically connected with a sensing piece 42, the test data of the floating body 3 to be tested is collected and stored, and it is understood that the test data is wave motion and load response data of the floating body in the water environment 2 without navigational speed.
The test device for measuring wave motion and load response of the non-navigational-speed floating body has simple structural design and can be realized by utilizing the conventional instruments and equipment in the conventional laboratory; the independence is strong, no special requirements are required for equipment, tools, instruments and the like in a model test, and the model test is suitable for the model test needing to measure the motion response of the non-navigational-speed floating body; the layout in the test device is reasonable, the data acquisition instrument transmits data by adopting wireless signals, and complex connecting lines in the test are avoided.
As shown in fig. 1, in the embodiment of the present invention, the test platform 1 includes a horizontal test platform 11 and a vertical test platform 12 connected to the horizontal test platform 11, wherein the upper support component 5 and the lower support component 6 are arranged on the vertical test bench 12, the data acquisition unit 43 is arranged on the horizontal test bench 11, the upper support assembly 5 comprises an upper support frame 51 and a connecting ring 52 arranged on the upper support frame 51, the lower support assembly 6 comprises a lower support frame 61 and a fixed pulley 62 arranged on the lower support frame 61, a connecting line of the upper support frame 51 and the lower support frame 61 is perpendicular to the horizontal plane of the water environment 2, the traction part 41 comprises a spring 411 connected with the sensing part 42 and a steel wire rope 412 connected with the spring 411, and the steel wire rope 412 is used for fixing the floating body 3 to be tested, so that the floating body can overcome the second-order drift force of waves in the waves, and the phenomenon that the floating body deviates from the initial position greatly to cause difficulty in motion.
As shown in fig. 1, the sensing member 42 is a tension sensor for measuring the average drift force of the floating body in the non-navigational water environment.
As shown in fig. 1, the data acquisition unit 43 is a data acquisition instrument, a wireless data transmission module connected with a computer by wireless signals is arranged in the data acquisition instrument, and data is transmitted by wireless signals, so that when a plurality of sets of test assemblies are used in a test, complex connecting lines in the test device are avoided, and the test device is reasonably arranged.
As shown in fig. 1, the fixing member 7 is a fixing ring provided on the floating body 3 to be tested, and the fixing ring is in threaded connection with the floating body 3 to be tested, so that the height of the fixing ring in the vertical direction can be conveniently adjusted to adjust the horizontal height of the steel wire rope 412.
As shown in fig. 1 and 2, it should be understood that in the simulation test, an even number of test assemblies 4 are generally used at the same time and are symmetrically arranged on the floating body 3 to be tested, so as to better fix the floating body 3 to be tested and improve the accuracy of the simulation data.
As shown in fig. 1 and 2, in a specific test structure, an upper support frame 51 and a lower support frame 61 are arranged on a vertical test platform 12 at intervals up and down along a direction vertical to a horizontal plane, the vertical test platform 12 can also be a vertical side wall of a water environment 3, a data acquisition analyzer is placed on a horizontal test platform 11, a connecting ring 52 is fixed on the upper support frame 51, a fixed pulley 62 is fixed on the lower support frame 61, according to the requirement of an actual model test, the length of a steel wire rope 412 and the rigidity and the number of springs 411 which accord with a similar law are selected, wherein one end of the steel wire rope 412 is connected with a floating body 3 to be tested through a fixed ring, the other end of the steel wire rope 412 is arranged parallel to the horizontal plane, bypasses the fixed pulley 62 and extends vertically upwards to be connected with the lower end of the spring 411, the upper end of the spring 411 is, the steel wire rope section with the tension sensor is vertical to the water environment 2, stress on the spring caused by the self weight of the tension sensor and a measurement result of the influence force are prevented, wherein the data acquisition instrument is electrically connected with the tension sensor and is in wireless signal transmission connection with a background computer, the data acquisition instrument sends the received tension value measured by the tension sensor to the computer through a wireless signal, the data are convenient to arrange and analyze, and the second-order wave average drift force of the floating body in the waves can be obtained by analyzing the value;
in a specific test, a target point can be installed on the floating body to be tested, the six-degree-of-freedom motion of the floating body to be tested is acquired through a non-contact motion acquisition system, and then the overall motion, the low-frequency motion component and the wave-frequency motion component of the floating body to be tested are obtained after data processing is calculated through computer simulation software.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A test device for measuring wave motion and load response of a non-navigational-speed floating body is characterized by comprising: the testing device comprises a testing platform, a to-be-tested floating body and at least one testing component, wherein the to-be-tested floating body and the at least one testing component are arranged in a water environment in a floating mode, the testing platform is located on one side of the water environment, an upper supporting component and a lower supporting component are arranged on the testing platform, the testing component comprises a traction piece, a sensing piece and a data acquisition unit, one end of the sensing piece is connected with the traction piece, the other end of the sensing piece is connected with the upper supporting component, the other end of the traction piece bypasses behind the lower supporting component and is connected with the to-be-tested floating body through a fixing piece, and the data acquisition unit is arranged on the testing platform and is electrically connected with.
2. The device of claim 1, wherein the test platform comprises a horizontal test platform and a vertical test platform connected to the horizontal test platform, wherein the upper support member and the lower support member are disposed on the vertical test platform, and the data acquisition unit is disposed on the horizontal test platform.
3. The test device of claim 1, wherein the upper support assembly comprises an upper support frame and an attachment ring disposed on the upper support frame.
4. The test device for measuring the wave motion and the load response of the non-navigational-speed floating body as claimed in claim 3, wherein the lower supporting assembly comprises a lower supporting frame and a fixed pulley arranged on the lower supporting frame, and a connecting line of the upper supporting frame and the lower supporting frame is perpendicular to the horizontal plane of the water environment.
5. The device of claim 1, wherein the traction member comprises a spring coupled to the sensing member and a wire rope coupled to the spring.
6. The device of claim 1, wherein the sensor is a tension sensor.
7. The test device for measuring wave motion and load response of the non-navigational-speed floating body as claimed in claim 1, wherein the data acquisition unit is a data acquisition instrument, and a wireless data transmission module connected with a computer through wireless signals is arranged in the data acquisition instrument.
8. The test device for measuring wave motion and load response of a non-navigational-speed floating body of claim 1, wherein the fixture is a fixed ring disposed on the floating body to be tested.
9. The test device for measuring wave motion and load response of a non-navigational floating body of claim 8, wherein the retainer ring is threadably connected to the floating body to be tested.
10. The test device for measuring wave motion and load response of the non-navigational-speed floating body according to claim 1, wherein an even number of the test assemblies are symmetrically arranged on the floating body to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020511342.0U CN212321040U (en) | 2020-04-09 | 2020-04-09 | Test device for measuring wave motion and load response of non-navigational-speed floating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020511342.0U CN212321040U (en) | 2020-04-09 | 2020-04-09 | Test device for measuring wave motion and load response of non-navigational-speed floating body |
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| CN212321040U true CN212321040U (en) | 2021-01-08 |
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| CN202020511342.0U Active CN212321040U (en) | 2020-04-09 | 2020-04-09 | Test device for measuring wave motion and load response of non-navigational-speed floating body |
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| CN (1) | CN212321040U (en) |
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