CN209513126U - A kind of three-dimensional total force measuring device of experiment - Google Patents
A kind of three-dimensional total force measuring device of experiment Download PDFInfo
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- CN209513126U CN209513126U CN201920586921.9U CN201920586921U CN209513126U CN 209513126 U CN209513126 U CN 209513126U CN 201920586921 U CN201920586921 U CN 201920586921U CN 209513126 U CN209513126 U CN 209513126U
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Abstract
The utility model provides a kind of three-dimensional total force measuring device of experiment, hoisting structure including support frame and on the support frame, the bottom of the hoisting structure is equipped with tested object fixed frame, and the fixed frame is for fixing tested object, and the fixed mount setting is below the water surface；The hoisting structure is equipped with six-component sensor, and the six-component sensor is used to measure the stress condition of hoisting structure, and the six-component sensor is arranged above the water surface；The signal output end of the six-component sensor connects data collecting instrument, and data collecting instrument is also connected with computer.The method that experiment described in the utility model uses aquatic measurement with three-dimensional total force measuring device, can greatly increase the service life of six-component sensor；It is applicable to the measured structural of different geometrical size in laboratory；Device monnolithic case is simple and beautiful, and intensity is high, and installation and removal are convenient, cheap and maintain easily repairing.
Description
Technical field
The utility model belongs to ocean engineering three-dimensional total power field of measuring technique, tests more particularly, to a kind of marine worker with three
Tie up total force measuring device.
Background technique
With the development of globalization process, " 21 century Maritime Silk Road " becomes China and promotes international cooperation and hair
The grand strategy of the Belt and Road of exhibition is laid out, and harbour plays vital in construction 21 century Maritime Silk Road process
Effect.It is related in external some ocean engineering field case histories, new port harbour and marine structure gradually outside seawater
Deep regional development, natural conditions locating for marine structure are increasingly complex compared with built engineering, and deep water, billow, long period gush
The severe natural conditions such as wave bring acid test to links such as the designs and construction of structures.
Carry out the unrestrained influence to offshore harbour to resist off-lying sea, often builds vertical type ocean in change off land deep water sea area and construct
Object maintains the stability of structure itself if gravity type upstanding bank resists the impact of wave by the weight of structure itself.Structure
Stress (such as by wave, water flow and wind external loads) is link important in marine structure design, is related to structures
Safety and reliability itself also directly affects the operational effect of port and pier.In field of ocean engineering, physics mould is commonly used
Type experiment measures engineering design, and experiment is using certain similarity criterion to the extraneous item of marine structure and place sea area
Part is simulated, research wave distribution, more unrestrained and structure stress etc..For structures stress, mainly there is the measurement of single-point wave pressure
Synthesis integral and total power measure two methods.The former is mainly used in two-dimensional flume experiment, and measurement object itself is often rule
Then continuous structure can measure positive stress and torque situation in structures unit length；The latter is mainly used in three-dimensional basin
In experiment, coming under unrestrained effect for different directions, power and moment information on structures three-dimensional space more can be really measured.
Currently, three-dimensional total force measuring device is mounted on the method for structural base frequently with pull pressure sensor to carry out, it is somebody's turn to do
Often there is sensor and closes the case where water layer corrosion leads to sensor degradation after multiple long period of experiments in method；Measuring instrument is straight
It connects and is placed on tested object, since the rigidity of instrument itself is inadequate, not so as to cause the rigidity connected between instrument and tested object
It is enough, influence the accuracy of measurement result；In addition, that there is also range accuracies is low for some measuring instruments, with laboratory dynamometry object without
It the problems such as method installation matching, needs to carry out secondary installing adaptation mostly.In view of the above-mentioned problems, in conjunction with ocean engineering laboratory inner harbor
The existing actual conditions of pond experiment, the three-dimensional total power of wave force suffered by marine structure in a kind of laboratory basin of independent research
Measuring device.
Summary of the invention
In view of this, the utility model is directed to a kind of three-dimensional total force measuring device of experiment, to solve existing three
Dimension total power measuring instrument rigidity is inadequate, and measuring device is easily damaged, the problem of measurement result inaccuracy.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of three-dimensional total force measuring device of experiment, hoisting structure including support frame and on the support frame are described to hang
The bottom of assembling structure is equipped with tested object fixed frame, and the fixed frame is for fixing tested object, and the fixed mount setting is in underwater
Side；
The hoisting structure is equipped with six-component sensor, and the six-component sensor is used to measure the stress of hoisting structure
Situation, the six-component sensor are arranged above the water surface；
The signal output end of the six-component sensor connects data collecting instrument, and data collecting instrument is also connected with computer.
Further, support frame as described above includes four supporting legs and the rectangle square steel frame being arranged at the top of supporting leg；
The supporting leg is column type steel pipe, and the rectangle square steel frame is that square steel welds the structural member to be formed；
The supporting leg is fixed with rectangle square steel frame welding；
The top of the hoisting structure is fixedly connected with rectangle square steel frame.
Further, the bottom of the supporting leg is equipped with leveling component, and the leveling component includes ring flange, thread bush
The bottom of supporting leg is arranged in cylinder, leveling nut, the ring flange, and the screw shell is weldingly fixed on ring flange upper surface
Center, the outside of the screw shell are equipped with external screw thread, and the supporting leg bottom inside is equipped with internal screw thread, the thread bush
Cylinder is threadedly coupled with supporting leg, and the leveling nut is fixedly mounted on the outside of screw shell, realizes method by rotation leveling nut
The lifting of blue disk.
Further, the supporting leg is weldingly fixed on the four corners of rectangle square steel frame, the supporting leg and adjacent
Inclined shore bar is additionally provided between square steel.
Further, the hoisting structure includes upper layer steel plate and lower layer's steel plate, sunpender, lower layer's Interal fixation installation
In the upper surface in rectangle square steel frame middle position；
The upper layer steel plate is located at the top of lower layer's steel plate, and the six-component sensor is arranged in upper layer steel plate and lower layer's steel
Between plate；
The top of the sunpender is fixedly connected with the middle position of upper layer steel plate；
The bottom of the sunpender is fixedly connected with fixed frame；
Circular hole is provided on lower layer's steel plate, the sunpender is arranged in circular hole.
Further, the upper layer steel plate is square steel plate, and the six-component sensor includes four three-dimensional force sensings
The distance of device, the four corners being separately positioned on the steel plate of upper layer, four three-dimensional force sensors to the midpoints of upper layer steel plate is all identical.
Further, the fixed frame includes fixation steel plate, angle steel, square tube, the top center of the fixation steel plate
It is welded and fixed with the bottom of sunpender, the fixation steel plate is square steel plate, and the angle steel is two, and two angle steel weld in parallel
In the lower surface two sides of fixation steel plate, towards outside, a line is fixedly connected the groove part of two angle steel with fixation steel plate, described
Square tube is four, and a square tube is welded and fixed in the both ends of every angle steel, and the square tube is vertically arranged, and the square tube is arranged two
The adjacent side of root angle steel；
The distance of the square steel to fixation steel plate is identical, and the distance at the angle steel both ends to fixation steel plate is also all identical.
Compared with the existing technology, experiment described in the utility model is had the advantage that with three-dimensional total force measuring device
The method that experiment described in the utility model uses aquatic measurement with three-dimensional total force measuring device, can greatly increase six
The service life of component sensor；It is applicable to the measured structural of different geometrical size in laboratory；Device monnolithic case is succinct
Beauty, intensity are high, and installation and removal are convenient, cheap and maintain easily repairing；It, should according to the practical effect in laboratory
Three-dimensional total force measuring device is stablized, operational excellence.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the three-dimensional total force measuring device overall structure figure of experiment described in the utility model embodiment；
Fig. 2 is the three-dimensional total power measuring device part structure chart of experiment described in the utility model embodiment；
Fig. 3 is fixed rack structure figure described in the utility model embodiment；
Fig. 4 is six square phase modular concept figure described in the utility model embodiment；
Fig. 5 is actual measurement stress statistical value result figure described in the utility model embodiment；
Fig. 6 is actual measurement loading process curve graph described in the utility model embodiment.
Description of symbols:
1, rectangle square steel frame；2, supporting leg；3, lower layer's steel plate；4, three-dimensional force sensor；5, upper layer steel plate；6, sunpender；
7, fixation steel plate；8, angle steel；9, square tube；10, ring flange；11, leveling nut；12, inclined shore bar.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, a kind of experiment three-dimensional total force measuring device, lifting including support frame and on the support frame
Structure, the bottom of the hoisting structure are equipped with tested object fixed frame, and the fixed frame is for fixing tested object, in use, fixed
Frame is arranged below the water surface, detects the power of water impact tested object；
Tested object is mainly the gravity type marine structure in physical experiments, such as gravity caisson.
The hoisting structure is equipped with six-component sensor, and the six-component sensor is used to measure the stress of hoisting structure
Situation, when in use, holder segment are that setting is below in the water surface, and six-component sensor is arranged under the support of supporting leg
Above the water surface, service life is effectively raised；
The signal output end of the six-component sensor connects data collecting instrument, and data collecting instrument is also connected with computer.
The six-component sensor vertical force range: 600N (1% of error less than full scale), horizontal longitudinal direction range:
200N (1% of error less than full scale), the above six-component sensor range is determined according to laboratory work environment；Horizontal cross
Strength journey: 200N (1% of error less than full scale)；Sensor output voltage are as follows: -10V~10V, operating temperature are as follows: -15 DEG C
~40 DEG C；The sample frequency 300Hz or more of the data collecting instrument, sampled data give computer, instrument work by USB interface
Make voltage are as follows:~220V (175~265V), operating temperature are as follows: -15 DEG C~40 DEG C.Three-dimensional force sensor and data collecting instrument are all
Existing equipment can be used, which is not described herein again.
Support frame as described above includes four supporting legs 2 and the rectangle square steel frame 1 that 2 top of supporting leg is arranged in；The branch
Support leg 2 is column type steel pipe, and the rectangle square steel frame 1 is that square steel welds the structural member to be formed；The supporting leg 2 and rectangle side
Steel frame 1 is welded and fixed；The top of the hoisting structure is fixedly connected with rectangle square steel frame 1.The use of supporting leg 2 cross section is
The circular hollow steel pipe of overall diameter 60mm, length 1000m.Rectangle square steel frame 1 is that outside is a length of using four sliver transvers sections
The hollow square steel of 60mm forms, and frame outside dimension length is 1600mm, width 800mm.
The bottom of the supporting leg 2 is equipped with leveling component, and the leveling component includes ring flange 10, screw shell, leveling
The bottom of supporting leg 2 is arranged in nut 11, the ring flange 10, and the screw shell is weldingly fixed on 10 upper surface of ring flange
Center, the outside of the screw shell are equipped with external screw thread, and 2 bottom inside of supporting leg is equipped with internal screw thread, the screw thread
Sleeve is threadedly coupled with supporting leg 2, and the leveling nut 11 is fixedly mounted on the outside of screw shell, by rotating leveling nut 11
Realize the lifting of ring flange 10.Change the connection length of screw shell and supporting leg 2 by rotation leveling nut 11, and then adjusts
The levelness for saving rectangle square steel frame 1, keeps testing result more accurate.
The supporting leg 2 is weldingly fixed on the four corners of rectangle square steel frame 1, the supporting leg 2 and adjacent square steel it
Between be additionally provided with inclined shore bar 12.Inclined shore bar 12 uses the circular hollow steel pipe of overall diameter 20mm.
As shown in Fig.1 and Fig.2, the hoisting structure includes upper layer steel plate 5 and lower layer's steel plate 3, sunpender 6, lower layer's steel plate
3 are fixedly mounted on the upper surface in 1 middle position of rectangle square steel frame；
The upper layer steel plate 5 is located at the top of lower layer's steel plate 3, and the six-component sensor setting is in upper layer steel plate 5 under
Between layer steel plate 3；The top of the sunpender 6 is fixedly connected with the middle position of upper layer steel plate 5；The bottom of the sunpender 6 and solid
Determine frame to be fixedly connected；Circular hole is provided on lower layer's steel plate 3, the sunpender 6 is arranged in circular hole.Steel plate 5 cross section in upper layer is
Side length is square of the 600mm with a thickness of 10mm, and sunpender 6 is the circular hollow steel pipe of overall diameter 60mm, and lower layer's steel plate 3 is transversal
Face is that side length is square of the 800mm with a thickness of 10mm.
The upper layer steel plate 5 is square steel plate, and the six-component sensor includes four three-dimensional force sensors 4, respectively
Four corners on upper layer steel plate 5 are set, and the distance at the midpoint of four three-dimensional force sensors 4 to upper layer steel plate 5 is all identical.
As shown in Figure 1 to Figure 3, the fixed frame includes fixation steel plate 7, angle steel 8, square tube 9, the top of the fixation steel plate 7
Portion center and the bottom of sunpender 6 are welded and fixed, and the fixation steel plate 7 is square steel plate, and the angle steel 8 is two, and two
Root angle steel 8 is welded on the lower surface two sides of fixation steel plate 7 in parallel, and the groove parts of two angle steel 8 is towards outside, a line and fixation
Steel plate 7 is fixedly connected, and the square tube 9 is four, and a square tube 9 is welded and fixed in the both ends of every angle steel 8, and the square tube 9 is perpendicular
To setting, two adjacent sides of angle steel 8 are arranged in the square tube 9；
The distance of the square steel to fixation steel plate 7 is identical, and the distance of 8 both ends of angle steel to the fixation steel plate 7 is also all identical,
Tested object is fixedly mounted between four square tubes 9, tested object can be made to be fixed on the underface of sunpender 6 in this way, measurement result is more
It is accurate to add.It is square steel plate of the side length for 450mm with a thickness of 10mm that fixed frame, which uses cross section, width be 45mm with a thickness of
Two angle steel 8 of 5mm and cross section are the hollow square steel compositions of a length of 40mm in outside.
Measurement method is specific as follows:
The data information that four three-dimensional force sensors detect is acquired by data collecting instrument, and is uploaded by transfer bus
To computer, six square phase three-dimensional coordinate model is pre-created in the data analysis and processing unit of computer-internal, according to six square phase three
Dimension coordinate model and calculation formula calculate three-dimensional total power；
Wherein six square phase three-dimensional coordinate model is four three-dimensional forces using the face where four three-dimensional force sensors as horizontal plane
The midpoint of sensor cross line is the three-dimensional system of coordinate that origin is established, the power in X-axis that each three-dimensional force sensor detects
Horizontal lateral force, the power in Y-axis are horizontal longitudinal force, are vertical force on Z axis, are detected according to each three-dimensional force sensor
Power on not coaxial brings calculation formula into and obtains three-dimensional total power.
In six square phase threedimensional model, six-component sensor can detect 3 component and 3 bending moments of generation, i.e., vertical force,
Horizontal longitudinal force, horizontal lateral force, the torque of X-axis, the torque of the torque of Y-axis and Z axis.Six square phase is strained using 12 350 Ω
Meter, forms 3 full-bridge circuits, measures vertical force, horizontal longitudinal force, horizontal lateral force respectively.Since three-dimensional force sensor is a little
Contact cannot support a model, so being arranged on 4 angles of model, group with 4 three-dimensional force sensors
At a complete six-component sensor.It one shares 12 power, first measures this 12 power, 6 required for then calculating again
A component, the relationship of these power and distribution are illustrated in fig. 4 shown below.
Calculation formula is as follows:
FZ=Z1+Z2+Z3+Z4；
FX=X1+X2+X3+X4；
FY=Y1+Y2+Y3+Y4；
In formula, FzFor vertical total power, FxFor horizontal cross total power, FyFor horizontal longitudinal total power.
Further include resultant couple calculation formula, formula is as follows:
MZ=[(Z3+Z4)-(Z1+Z2)]×LX/2；
MX=[(Z2+Z4)-(Z1+Z3)]×LY/2；
MY=[(Y3+Y4)-(Y1+Y2)]×LX/2+[(X1+X3)-(X2+X4)]×LY/2；
In formula, MxFor X-axis resultant couple, MyFor Y-axis resultant couple, MzFor Z axis resultant couple, LXIt is passed for two adjacent three-dimensional forces
Spacing between sensor X-axis, that is, the spacing in Fig. 4 between No. 1 and No. 2 three-dimensional force sensors, LYIt is adjacent two three
Spacing between dimensional force sensor Y-axis, that is, the spacing in Fig. 4 between No. 2 and No. 3 three-dimensional force sensors, No. 1 three-dimensional force pass
The vertical force of sensor, horizontal lateral force, horizontal longitudinal force are respectively with Z1、X1、Y1It indicates, other three-dimensional force sensors successively class
It pushes away.This measuring device is stable, and measurement accuracy is high, and actual measurement stress statistical value result is as shown in figure 5, actual measurement loading process is bent
Line is as shown in Figure 6.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (7)
1. a kind of three-dimensional total force measuring device of experiment, it is characterised in that: lifting knot including support frame and on the support frame
Structure, the bottom of the hoisting structure are equipped with tested object fixed frame, and the fixed frame is for fixing tested object；
The hoisting structure is equipped with six-component sensor, and the six-component sensor is used to measure the stress feelings of hoisting structure
Condition；
The signal output end of the six-component sensor connects data collecting instrument, and data collecting instrument is also connected with computer.
2. the three-dimensional total force measuring device of experiment according to claim 1, it is characterised in that: support frame as described above includes four
Supporting leg (2) and the rectangle square steel frame (1) being arranged at the top of supporting leg (2)；
The supporting leg (2) is column type steel pipe, and the rectangle square steel frame (1) is that square steel welds the structural member to be formed；
The supporting leg (2) is welded and fixed with rectangle square steel frame (1)；
The top of the hoisting structure is fixedly connected with rectangle square steel frame (1).
3. the three-dimensional total force measuring device of experiment according to claim 2, it is characterised in that: the bottom of the supporting leg (2)
Portion is equipped with leveling component, and the leveling component includes ring flange (10), screw shell, leveling nut (11), the ring flange
(10) it is arranged in the bottom of supporting leg (2), the screw shell is weldingly fixed on the center of ring flange (10) upper surface, institute
The outside for stating screw shell is equipped with external screw thread, and supporting leg (2) bottom inside is equipped with internal screw thread, the screw shell and support
Leg (2) is threadedly coupled, and the leveling nut (11) is fixedly mounted on the outside of screw shell, is realized by rotation leveling nut (11)
The lifting of ring flange (10).
4. the three-dimensional total force measuring device of experiment according to claim 2, it is characterised in that: supporting leg (2) welding
The four corners of rectangle square steel frame (1) are fixed on, are additionally provided with inclined shore bar between the supporting leg (2) and adjacent square steel
(12)。
5. the three-dimensional total force measuring device of experiment according to claim 2, it is characterised in that: the hoisting structure includes upper
Layer steel plate (5) and lower layer's steel plate (3), sunpender (6), lower layer's steel plate (3) are fixedly mounted on rectangle square steel frame (1) interposition
The upper surface set；
The upper layer steel plate (5) is located at the top of lower layer's steel plate (3), the six-component sensor setting in upper layer steel plate (5) and
Between lower layer's steel plate (3)；
The top of the sunpender (6) is fixedly connected with the middle position of upper layer steel plate (5)；
The bottom of the sunpender (6) is fixedly connected with fixed frame；
Circular hole is provided on lower layer's steel plate (3), the sunpender (6) is arranged in circular hole.
6. the three-dimensional total force measuring device of experiment according to claim 5, it is characterised in that: the upper layer steel plate (5) is
Square steel plate, the six-component sensor include four three-dimensional force sensors (4), are separately positioned on upper layer steel plate (5)
The distance of four corners, the midpoint of four three-dimensional force sensors (4) to upper layer steel plate (5) is all identical.
7. the three-dimensional total force measuring device of experiment according to claim 5, it is characterised in that: the fixed frame includes fixing
The bottom of steel plate (7), angle steel (8), square tube (9), the top center and sunpender (6) of the fixation steel plate (7) is welded and fixed,
The fixation steel plate (7) is square steel plate, and the angle steel (8) is two, and two angle steel (8) are welded on fixation steel plate in parallel
(7) lower surface two sides, towards outside, a line is fixedly connected the groove part of two angle steel (8) with fixation steel plate (7), described
Square tube (9) is four, and a square tube (9) is welded and fixed in the both ends of every angle steel (8), and the square tube (9) is vertically arranged, described
The side adjacent in two angle steel (8) is arranged in square tube (9)；
The distance of the square steel to fixation steel plate (7) is identical, the distance at angle steel (8) both ends to fixation steel plate (7) also all phase
Together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586921.9U CN209513126U (en) | 2019-04-26 | 2019-04-26 | A kind of three-dimensional total force measuring device of experiment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586921.9U CN209513126U (en) | 2019-04-26 | 2019-04-26 | A kind of three-dimensional total force measuring device of experiment |
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| Publication Number | Publication Date |
|---|---|
| CN209513126U true CN209513126U (en) | 2019-10-18 |
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ID=68188677
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| CN201920586921.9U Expired - Fee Related CN209513126U (en) | 2019-04-26 | 2019-04-26 | A kind of three-dimensional total force measuring device of experiment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174206A (en) * | 2019-04-26 | 2019-08-27 | 交通运输部天津水运工程科学研究所 | A kind of three-dimensional total power measuring device and measuring method of experiment |
| CN114166464A (en) * | 2021-11-12 | 2022-03-11 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Device and method for measuring wind wave and flow force |
-
2019
- 2019-04-26 CN CN201920586921.9U patent/CN209513126U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174206A (en) * | 2019-04-26 | 2019-08-27 | 交通运输部天津水运工程科学研究所 | A kind of three-dimensional total power measuring device and measuring method of experiment |
| CN110174206B (en) * | 2019-04-26 | 2024-02-02 | 交通运输部天津水运工程科学研究所 | Device and method for measuring three-dimensional total force for experiment |
| CN114166464A (en) * | 2021-11-12 | 2022-03-11 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Device and method for measuring wind wave and flow force |
| CN114166464B (en) * | 2021-11-12 | 2023-10-27 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Wind wave and current force measuring device and method |
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Granted publication date: 20191018 |