CN203643125U - Device used for analyzing force condition of test model in cycling water tank - Google Patents

Device used for analyzing force condition of test model in cycling water tank Download PDF

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Publication number
CN203643125U
CN203643125U CN201320802696.0U CN201320802696U CN203643125U CN 203643125 U CN203643125 U CN 203643125U CN 201320802696 U CN201320802696 U CN 201320802696U CN 203643125 U CN203643125 U CN 203643125U
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CN
China
Prior art keywords
component
test
balance
base
stressing conditions
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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.)
Withdrawn - After Issue
Application number
CN201320802696.0U
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Chinese (zh)
Inventor
马玉顺
匡俊
陆渊
郭建志
沈海钢
毛亦存
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Dongfang Marine Engineering Technology Co Ltd
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Shanghai Dongfang Marine Engineering Technology Co Ltd
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Priority to CN201320802696.0U priority Critical patent/CN203643125U/en
Application granted granted Critical
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Abstract

The utility model discloses a device used for analyzing force condition of a test model in a circulating water tank. The device comprises a hanging rack, a wiring box, a pair of guiding shafts, a bottom seat, and a five-component balance device, wherein the upper ends of the guiding shafts are mounted at a lower surface of the hanging rack through guiding shaft supporting seats, the lower ends of the guiding shafts are mounted at an upper surface of the bottom seat; the five-component balance device is mounted at an upper surface of the bottom seat, and is connected with the wring box; and the bottom part of the five-component balance device is equipped with a force transmission rod which goes through a bottom seat flow guiding cover connection disc. The device is light in weight, quick in response, easy to transmit an electrical signal, beneficial for water dynamic test measurement automation, small in size, and capable of measuring both the water-power and the moment applied on a full model, and the water-power and the moment applied on a part model or an external model.

Description

Be applied to the device of test model stressing conditions in analysis cycle tank
Technical field
The utility model relates to a kind of stressed analytical equipment under water, relates in particular to a kind of device that is applied to test model stressing conditions in analysis cycle tank.
Background technology
Hydrodynamics is the science of hydrodynamic(al) and object interaction, is one of most important theory of naval technology.Nowadays pleasure boat, cargo ship, passenger steamer profile are updated, and performance improves constantly, invariably closely related with the development of hydrodynamics.In Novel steamship design, hydrodynamics will play the effect of ever more important, and wherein hydrodynamic test is more crucial at this.
The hydrodynamic(al) balance history of existing more than 100 years, along with the development of hydrodynamic(al) and experimental technique thereof, particularly, over nearly 30 years, various types of strain balances are widely used in low speed and high speed hydrodynamic(al), and balance calibration equipment and calibration steps have also had very large improvement.
But existing mechanical balance is measured, the large quality of its volume is heavy, signal transmission is slow, and measurement range is comparatively narrow, and its design processed complex, and cost is higher.
Utility model content
The purpose of this utility model is to solve the problems of the prior art, and a kind of device that is applied to test model stressing conditions in analysis cycle tank is provided.
The technical solution of the utility model is: the device that is applied to test model stressing conditions in analysis cycle tank, comprise suspension bracket, terminal box, a pair of axis of guide, base and five-component balance device, the described axis of guide is arranged on the lower surface of suspension bracket by axis of guide bearing upper end, lower end is arranged on the upper surface of base; Described five-component balance device is arranged on base upper surface and joins with described terminal box, in the bottom of five-component balance device, one transmission rod through base kuppe terminal pad is installed.
Preferably, described suspension bracket two ends lower surface is along its length provided with a pair of clamping block, on described clamping block, is provided with compact heap.
Preferably, described axis of guide bearing comprises the first bearing and the second bearing, and the upper end of the described axis of guide is arranged on the lower surface of suspension bracket by the first bearing, and lower end is arranged on the upper surface of base by the second bearing.
Preferably, described the second bearing comprises upper bracket and sleeve, and described upper bracket is threaded in the top of sleeve, and described sleeve is arranged on the upper surface of base.
Preferably, the top of described base is provided with the sealed chamber of described five-component balance device sealing.
Preferably, described sealed chamber comprises horizontal organic glass and vertical organic glass, and described vertical organic glass circumferential arrangement is at the upper surface of base, and described horizontal organic glass sealing covers the top of described vertical organic glass.
Preferably, described five-component balance device comprises two component sensors, three component sensor and mount pads; Described two component installation of sensors are at the upper surface of mount pad, and described mount pad is arranged on axis of guide bearing; Described three component sensors and described transmission rod join, and described three component sensor settings are below two component sensors.
Preferably, described three component sensors join by joint flange and described transmission rod.
Preferably, described three component sensors are three beam types and four post beam types combination dynamometry, and wherein three beams mainly can be measured resistance and the side force of ship model in water; Four post beams can be measured the yawing of ship model in water.
Preferably, two component sensors are two main dynamometry of beam type, and wherein two beams can be measured raising force and the rolling moment of ship model in water.
The utlity model has following beneficial effect:
1) quality is light, response is fast, and electric signal easily transmits, and is convenient to the robotization of hydrodynamic(al) experimental measurement;
2) volume is little, not only can measure the hydrodynamic(al) wind tunnel acting on full model, and can measure the hydrodynamic(al) wind tunnel acting on partial model or plug-in model-free;
3) simply, cost is lower, can in circulating water chennel, configure many balance units, realizes the seriation of size and load, also can be according to the balance unit of different test model design specialized for design, processing;
4) applicable to various model supporting way such as tail support, abdominal support, back-supporteds, easy to use, strong adaptability, can meet the requirement of dissimilar water tunnel test.
Accompanying drawing explanation
Fig. 1 is front section view of the present utility model;
Fig. 1 a is side sectional view of the present utility model;
Fig. 1 b is vertical view of the present utility model;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B-B view of Fig. 1;
Fig. 4 is the C-C view of Fig. 1;
Fig. 5 is two beam type schematic diagram of the utility model two component sensors;
Fig. 6 is three beam type schematic diagram that the utility model three component pass.
Embodiment
For technological means, technical characterictic, utility model object and technique effect that the utility model is realized are easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Fig. 1,1a, 1b, for a kind of device that is applied to test model stressing conditions in analysis cycle tank of the present utility model, comprise suspension bracket 100, terminal box 200, a pair of axis of guide 300, base 400 and five-component balance device 500.Suspension bracket 100 of the present utility model two ends lower surface is along its length provided with two pairs of clamping blocks 101, and the vertical section of this clamping block 101 is inverted U, in the lower inside of clamping block 101, compact heap 1011 is set.
As shown in Fig. 1 a, 1b, two axis of guides 300 are arranged on the lower surface of suspension bracket by axis of guide bearing, axis of guide bearing of the present utility model comprises the first bearing 301 and the second bearing 302, the upper end of the described axis of guide 300 is arranged on the lower surface 102 of suspension bracket 100 by the first bearing 301, lower end is arranged on the upper surface 401 of base 400 by the second bearing 302.The second bearing 302 of the present utility model comprises upper bracket 3021 and sleeve 3022, and upper bracket 3021 is threaded on sleeve 3022, and sleeve 3022 is arranged on the upper surface 401 of base.
As shown in Figure 2,3, 4, five-component balance device 500 of the present utility model is arranged on base upper surface 401 and joins and carry out signal transmission with terminal box 200, terminal box 200 is arranged on the upper surface of suspension bracket 100 by installing plate 202, be provided with signal output 201 on the two ends of terminal box 200.In the bottom of five-component balance device 500, a transmission rod 403 through base kuppe terminal pad 402 is installed.The tail end joint test model 404 of this transmission rod 403, transmission rod 403 parts are above the water surface 405.Transmission rod 403 is that test model 404 is passed on moment and hydrodynamic most important approach with five-component balance device 500.
Above base 400, be provided with the sealed chamber 600 that five-component balance device 500 is sealed.Sealed chamber 600 comprises horizontal organic glass 601 and vertical organic glass 602, vertically organic glass 602 circumferential arrangement form a square or circular space at the upper surface of base 400, horizontal organic glass 601 sealings cover the top of vertical organic glass 602, have so just formed the cavity of a sealing.
Five-component balance device 500 of the present utility model comprises two component sensors 501, three component sensors 502 and mount pad 503; Two component sensors 501 are arranged on the upper surface of mount pad 503, and mount pad 503 is arranged on axis of guide bearing 3021, the rotation by axis of guide bearing 3021 at sleeve 3022, and the height that can realize this mount pad 503 regulates.Three component sensors 502 are arranged on the below of two component sensors 501, three component sensors 502 join by joint flange 4031 with transmission rod 403, two component sensors 501, three component sensors 502 are mainly the stressing conditions of water sensing drag, and this signal are sent to data acquisition.
In the time of design five-component balance device 500, need to consider several respects factor as:
1) balance measurement number of components and design range thereof;
2) static calibration of balance precision and accuracy;
3) the maximum set size that balance allows;
4) model quality, centroid position and moment reference center position;
5) balance operating ambient temperature, humidity and pressure range;
6) amplitude of hydrodynamic(al) flow fluctuation and frequency;
7) type of attachment of balance and model, balance and pole and size for connection.
The design range of five-component balance device 500 is to determine with the quality of model according to acting on flow dynamic load on model, given in balance axon is.The design range of five-component balance device 500 each components is wanted choose reasonable and is mated, if mate unreasonablely, can increase the design difficulty of strain balance, affects the performance of five-component balance device 500.
The accuracy Design index of five-component balance device 500 is: qualified index is 0.1%~0.2%, and advanced index is 0.03%~0.06%.The accuracy index of strain balance is: qualified index is 0.4%~0.5%, and advanced index is 0.1%~0.2%, and the precision of this utility model is better than 0.1%.
Five-component balance device 500 requires also very strict for sensitivity, the design strain value scope of general high speed five-component balance device 500 is at 150~500 μ ε, the design strain value scope of low speed five-component balance device 500 is at 300~1000 μ ε, and the sensitivity of this utility model is within 300~1000 μ ε scopes.
When five-component balance device 500 designs, guarantee that five-component balance device 500 systems have enough intensity, to guarantee the safety of hydrodynamic(al) test.Moreover, after ensuring sufficient intensity, rigidity is another important indicator that five-component balance device 500 designs.Insufficient rigidity has larger Nonlinear perturbations by causing between the each component of balance, also can cause model deformation, affects measuring precision and accuracy, and in the time of design, this utility model also carried out calculating check, met Rigidity and strength requirement.
Five-component balance device 500 will have larger strain deformation ratio, in the case of metering circuit for bridge voltage certain, the size of five-component balance device 500 output signals depends on the strain of day flat elements.But, concerning the sky flat elements of a certain ad hoc structure, improve the decline that strain just means balance rigidity.Therefore, strain and rigidity are two conflicting indexs, so just there has been the concept of strain deformation ratio.This utility model has been carried out check checking computations repeatedly in this respect, repeatedly in the situation that, has obtained higher strain deformation ratio in version and physical dimension adjustment.
Five-component balance device 500 will have less temperature effect, and the height of temperature causes the variation of balance zero drift and balance sensitivity, affects measuring precision and accuracy.Applicable temperature of the present utility model need be controlled within 0~40 °.
As shown in Figure 5 and Figure 6, according to the loudness size between the thickness of measuring sensor elastic beam and width, the version of composition element can be divided into sheet beam type and post beam type; Post beam type generally has single-column beam type, three post beam types, four post beam types and multicolumn beam type.Consider strain deformation than maximizing, in design when three component sensor 502 structural designs, adopted the composition element of three beam types 5021 and four post beam types 5022 to measure resistance, side force, yawing; And the composition element that two component sensor 501 structural designs are two beam types 5011 is measured raising force, rolling moment.Through optimization repeatedly, the utility model has higher strain deformation ratio now.
Next than obvious position, need to paste metal strain plate in strain deformation, utilizes strain-type shift theory can make resistance strain plate or strain film.It can experience the strain producing while measuring object receiving force or moment, and strain variation is converted to resistance variations, is further converted to the variation of voltage or electric current by electric bridge.In the time selecting metal strain plate, need to consider several respects factor: resistance value, insulation resistance, sensitivity coefficient, mechanical hysteresis, permission electric current, strain limit, drift and the creep of foil gauge.
Be only the utility model preferred embodiment in sum, be not used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modify, all should belong to technology category of the present utility model.

Claims (10)

1. be applied to the device of test model stressing conditions in analysis cycle tank, it is characterized in that: comprise suspension bracket, terminal box, a pair of axis of guide, base and five-component balance device, the described axis of guide is arranged on the lower surface of suspension bracket by axis of guide bearing upper end, lower end is arranged on the upper surface of base; Described five-component balance device is arranged on base upper surface and joins with described terminal box, in the bottom of five-component balance device, one transmission rod through base kuppe terminal pad is installed.
2. the device that is applied to test model stressing conditions in analysis cycle tank according to claim 1, is characterized in that: described suspension bracket two ends lower surface is along its length provided with a pair of clamping block, on described clamping block, is provided with compact heap.
3. the device that is applied to test model stressing conditions in analysis cycle tank according to claim 1, it is characterized in that: described axis of guide bearing comprises the first bearing and the second bearing, the upper end of the described axis of guide is arranged on the lower surface of suspension bracket by the first bearing, lower end is arranged on the upper surface of base by the second bearing.
4. the device that is applied to test model stressing conditions in analysis cycle tank according to claim 3, it is characterized in that: described the second bearing comprises upper bracket and sleeve, described upper bracket is threaded in the top of sleeve, and described sleeve is arranged on the upper surface of base.
5. the device that is applied to test model stressing conditions in analysis cycle tank according to claim 1, is characterized in that: the top of described base is provided with the sealed chamber of described five-component balance device sealing.
6. the device that is applied to test model stressing conditions in analysis cycle tank according to claim 5, it is characterized in that: described sealed chamber comprises horizontal organic glass and vertical organic glass, described vertical organic glass circumferential arrangement is at the upper surface of base, and described horizontal organic glass sealing covers the top of described vertical organic glass.
7. the device that is applied to test model stressing conditions in analysis cycle tank according to claim 1, is characterized in that: described five-component balance device comprises two component sensors, three component sensor and mount pads; Described two component installation of sensors are at the upper surface of mount pad, and described mount pad is arranged on axis of guide bearing; Described three component sensors and described transmission rod join, and described three component sensor settings are below two component sensors.
8. the device that is applied to test model stressing conditions in analysis cycle tank according to claim 7, is characterized in that: described three component sensors join by joint flange and described transmission rod.
9. according to the device that is applied to test model stressing conditions in analysis cycle tank described in claim 7 or 8, it is characterized in that: described three component sensors are three beam types and four post beam types combination dynamometry.
10. the device that is applied to test model stressing conditions in analysis cycle tank according to claim 7, is characterized in that: described two component sensors are two beam types.
CN201320802696.0U 2013-12-09 2013-12-09 Device used for analyzing force condition of test model in cycling water tank Withdrawn - After Issue CN203643125U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320802696.0U CN203643125U (en) 2013-12-09 2013-12-09 Device used for analyzing force condition of test model in cycling water tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320802696.0U CN203643125U (en) 2013-12-09 2013-12-09 Device used for analyzing force condition of test model in cycling water tank

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103630328A (en) * 2013-12-09 2014-03-12 上海市东方海事工程技术有限公司 Device for analyzing stress conditions of test model in circulating water channel
CN104374544A (en) * 2014-12-10 2015-02-25 中国人民解放军海军工程大学 Asymmetric measuring device for propeller pulsating pressure
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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103630328A (en) * 2013-12-09 2014-03-12 上海市东方海事工程技术有限公司 Device for analyzing stress conditions of test model in circulating water channel
CN103630328B (en) * 2013-12-09 2016-04-13 上海市东方海事工程技术有限公司 Be applied to the device of test model stressing conditions in analysis cycle tank
CN104374544A (en) * 2014-12-10 2015-02-25 中国人民解放军海军工程大学 Asymmetric measuring device for propeller pulsating pressure
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

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C14 Grant of patent or utility model
GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
AV01 Patent right actively abandoned

Granted publication date: 20140611

Effective date of abandoning: 20160413