CN105973566B - A kind of measuring system and its measurement method of fluid structurecoupling parameter - Google Patents
A kind of measuring system and its measurement method of fluid structurecoupling parameter Download PDFInfo
- Publication number
- CN105973566B CN105973566B CN201610351473.5A CN201610351473A CN105973566B CN 105973566 B CN105973566 B CN 105973566B CN 201610351473 A CN201610351473 A CN 201610351473A CN 105973566 B CN105973566 B CN 105973566B
- Authority
- CN
- China
- Prior art keywords
- upper plate
- parameter
- data
- lower plate
- plate
- Prior art date
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of measuring systems of fluid structurecoupling parameter, the measuring system includes measuring device main body, control subsystem and data acquisition and processing subsystem, wherein, the measuring device main body includes supporting rack and pond, it is disposed with electromagnetic exciter, upper plate, lower plate and stabilizer blade from top to bottom between supporting rack and pond, it is provided with accelerometer and displacement sensor on upper plate, force sensor is set below lower plate and on stabilizer blade；The invention also discloses a kind of methods measuring fluid structurecoupling parameter using above-mentioned measuring system, wherein can measure additional mass and additional damping, i.e. fluid-solid coupling parameter using this method.Simple in measurement system structure provided by the present invention, it is easy to use；The fluid structurecoupling parameter that the measuring system can not only measure tablet can also measure the fluid structurecoupling parameter of orifice plate, offer precise data for aseismic analysis or Aseismic Design.
Description
Technical field
The present invention relates to technical field of nuclear power energy, and in particular to spent fuel storage rack field is particularly related to one kind
Between spent fuel storage rack between screen work and pond fluid structurecoupling parameter measuring system.
Background technology
Spent fuel storage rack is the irradiated fuel assembly for having for storing very hot, since irradiated fuel assembly is transported outward
The complexity of fuel treatment factory arranges irradiated fuel assembly as much as possible in limited pond space, therefore, general to use
Intensity storage screen work.But which increases the danger of irradiated fuel assembly storage.In order to ensure the safety of storage, really
It protects irradiated fuel assembly and is not up to critical condition in storage, remain to keep storage function, therefore, spentnuclear fuel under seismic (seismal
Storage screen work is designed to antidetonation I class equipment, should meet in design and keep its storage function under seismic (seismal, do not fall apart, no
It tumbles, big deformation does not occur for screen work, it is ensured that fuel assembly is not up to critical condition during storage.Therefore, it is designed in screen work
When, it needs to carry out the analysis of earthquake operating mode lower structure.
In earthquake, the state of spent fuel storage rack needs to consider the active force of fluid (water), under normal circumstances, plaid matching
When frame carries out the analysis of earthquake operating mode lower structure, fluid force is reduced to additional mass and attached by generally use Transient Analysis
The solid coupling parameter of the two streams of damping is added the program of finite element of screen work to be attached to, using the two parameters as input to ask
The maximum load of solution structure carries out stress evaluation to structure.So the two fluid structurecoupling parameters are to spent fuel storage rack
Seismic safety has extremely important effect.
Foreign countries' fluid structurecoupling characteristic research between spent fuel storage rack and pond is more comprehensive, it is proposed that three-dimensional spentnuclear fuel
Screen work dynamic Fluid structure interaction model.And more screen work fluid coupling models are verified by experiment and CFD software simulation
Correctness, but the selection of its parameter also has uncertainty.And domestic correlative study is deficienter, mainly business software mould
Quasi-, Coupling effect of seepage rock deformation uses hydrodynamic mass to consider, the kinetic characteristics such as obtained additional mass and additional damping
Parameter lacks experimental data than more conservative.
Invention content
In order to overcome the above problem, present inventor has performed sharp studies, design a kind of measurement of fluid structurecoupling parameter
System carries out specific experiment, data sequence is obtained, then to data sequence using the measuring system by controlling parameters
It carries out least square method nonlinear fitting and obtains additional mass and additional damping, i.e. fluid structurecoupling parameter, thereby completing the present invention.
It is an aspect of the invention to provide a kind of measuring system of fluid structurecoupling parameter, the fluid structurecoupling parameter is weary
Fluid structurecoupling parameter between bunkering screen work or between screen work and pond, it is specific as follows：
(1) a kind of measuring system of fluid structurecoupling parameter, wherein the measuring system includes measuring device main body 1, described
Measuring device main body 1 includes supporting rack 11 and pond 12, and electricity is disposed with from top to bottom between supporting rack 11 and pond 12
Magnet exciter 13, upper plate 15, lower plate 16 and stabilizer blade 17；
(2) measuring system according to above-mentioned (1), wherein
The electromagnetic exciter 13 is used to generate exciting force to water, and exciting force is then acted on upper plate 15,
The upper plate 15 is used to simulate practical spent fuel storage rack,
The lower plate 16 is used to simulate practical neighbouring screen work or practical adjacent pool,
The stabilizer blade 17 is for making lower plate 16 stand on pond 12；
(3) measuring system according to above-mentioned (2), wherein
The upper plate 15 and the respectively rectangular slab of lower plate 16, preferably rectangular steel plate, and/or
The electromagnetic exciter 13 is fixed on the upper end of supporting rack 11, and/or
The upper plate 15 is connect by drive rod 14 with electromagnetic exciter 13, and/or
The stabilizer blade 17 is 3 or more, and the stabilizer blade 17 is symmetrically distributed in the lower section of lower plate 16, it is preferable that the branch
Foot 17 is 4, and is distributed evenly in respectively on four angles of lower plate 16；
(4) measuring system according to above-mentioned (3), wherein
The electromagnetic exciter 13 carries out exciting using sine wave, and the amplitude and frequency of the sine wave are controllable, and/or
Upper plate 15 can be moved up and down along drive rod 14, described initial for controlling different primary clearance sizes
Primary clearance size of the gap size between upper plate and lower plate；
(5) measuring system according to above-mentioned (4), wherein
Accelerometer 18 is provided on upper plate 15, for calculate upper plate 15 move up and down when acceleration, and/or
Displacement sensor 19 is provided on upper plate 15, it is big for detecting the primary clearance between upper plate 15 and lower plate 16
It is small, and/or
The setting force sensor 20 below lower plate 16 and on stabilizer blade 17, the active force being subject to for detecting lower plate,
In, the active force is the adduction of the gravity of fluid structure interaction power and plate；
(6) measuring system according to one of above-mentioned (1) to (5), wherein the measuring system further includes control subsystem
System 2 and data acquisition and processing subsystem 3, wherein the measuring device main body 1 is acquired with control subsystem 2 and data respectively
It is connect with processing subsystem 3；
(7) measuring system according to above-mentioned (6), wherein
The control subsystem 2 includes controller 21 and power amplifier 22；Wherein, the controller 21 is for passing through electricity
Magnet exciter 13 controls the parameters of upper plate 15, such as primary clearance size, vibration frequency and vibration amplitude, wherein described
Primary clearance size of the primary clearance size between upper plate 15 and lower plate 16, the vibration frequency are the vibration frequency of upper plate,
The vibration amplitude is the vibration amplitude of upper plate, and/or
The data acquisition and procession subsystem 3 includes data acquisition module 31 and data processing module 32, wherein described
Data acquisition module 31 is for acquiring the data that displacement sensor 19 and force snesor 20 are transmitted, the data processing module 32
For carrying out data processing, experimental result is obtained.
Another aspect of the present invention is to provide a kind of measuring system measurement screen work using described in one of above-mentioned (1) to (6)
Between or screen work and pond between fluid structurecoupling parameter method, it is specific as follows：
(8) a kind of method measuring fluid structurecoupling parameter, it is preferred to use the measurement system described in one of above-mentioned (1) to (7)
System is between fluid structurecoupling parameter measures measuring screen work or between screen work and pond, wherein the described method comprises the following steps：
Step 1 starts measuring system,
Step 2 carries out parameter setting to upper plate 15 by control subsystem 2, and starts to test,
Step 3 carries out data acquisition by data acquisition and procession subsystem 3, and line number of going forward side by side Data preprocess obtains preliminary
Data,
Step 4 carries out data processing eventually by data acquisition and procession subsystem 3 to preliminary data, obtains different parameters
Under additional mass and additional damping, i.e. fluid structurecoupling parameter；
(9) method according to above-mentioned (8), wherein in step 2, the parameter includes primary clearance size, vibration
Frequency and vibration amplitude, wherein primary clearance size of the primary clearance size between upper plate 15 and lower plate 16；It is described to shake
Dynamic frequency is the vibration frequency of upper plate 15, is equal to the vibration frequency of electromagnetic exciter 13；The vibration amplitude is upper plate 15
Vibration amplitude is equal to the vibration amplitude of electromagnetic exciter 13, and/or
In step 3, the preliminary data is included in the number of the fluid structure interaction power and time that are obtained under different parameters
According to sequence；
(10) method according to above-mentioned (9), wherein
In step 4, processing carries out nonlinear fitting using least square method eventually for the data, obtains additional mass and attached
Add damping,
Preferably, according to formula (3), nonlinear fitting is carried out to data sequence using least square method, is obtained in different ginsengs
The additional mass and additional damping obtained under number setting,
Wherein, formula (3) is as follows：
F (t)=- madAω2sin(ωt)+cadA ω cos (ω t) formula (3)
In formula (3), F (t) indicates fluid structure interaction power, madIndicate additional mass, cadIndicate that additional damping, A indicate
The vibration amplitude of upper plate, ω indicate that the vibration frequency of upper plate, t indicate the time of vibration of upper plate.
Description of the drawings
Fig. 1 shows the structural schematic diagram of measuring device main body；
Fig. 2 shows the structural schematic diagrams of measuring system.
Drawing reference numeral explanation：
1- measuring device main bodys
11- supporting racks
The ponds 12-
13- electromagnetic exciters
14- drive rods
15- upper plates
16- lower plates
17- stabilizer blades
18- accelerometers
19- displacement sensors
20- force snesors
2- control subsystems
21- controllers
22- power amplifiers
3- data acquisition and procession subsystems
31- data acquisition modules
32- data processing modules
Specific implementation mode
Below by attached drawing, the present invention is described in more detail.By these explanations, the features and advantages of the invention will
It becomes more apparent from clear.
Wherein, although the various aspects of embodiment are shown in the accompanying drawings, unless otherwise indicated, it is not necessary in proportion
Draw attached drawing.
A kind of measuring system for fluid structurecoupling parameter that one aspect of the present invention provides, as shown in Figure 1 and Figure 2, the measurement
System includes measuring device main body 1, and the measuring device main body 1 includes supporting rack 11 and pond 12, in supporting rack 11 and pond
Electromagnetic exciter 13, upper plate 15, lower plate 16 and stabilizer blade 17 are disposed between 12 from lower to upper, wherein the fluid structurecoupling
Fluid structurecoupling parameter of the parameter between spent fuel storage rack or between screen work and pond, further, the solid coupling of stream
It refers to additional mass and additional damping to close parameter.
Wherein, for the upper plate 15 for simulating practical spent fuel storage rack, the lower plate 16 is practical neighbouring for simulating
Screen work or practical adjacent pool, the electromagnetic exciter 13 are used to generate exciting force to water, and the exciting force can then act on
Upper plate 15.
According to a kind of preferred embodiment of the present invention, water is marked in pond 12.
In further preferred embodiment, the water in pond 12 will not have upper plate 15.
According to a kind of preferred embodiment of the present invention, the upper plate 15 and lower plate 16 are respectively rectangular slab.
In further preferred embodiment, the upper plate 15 and lower plate 16 are respectively rectangular steel plates.
In embodiment still more preferably, the rectangular steel plates be practical spent fuel storage rack 1/10 greatly
It is small.
Wherein, it may be orifice plate that the upper plate 15, which can be tablet,.
According to a kind of preferred embodiment of the present invention, as shown in Figure 1, the electromagnetic exciter 13 is fixed on supporting rack 11
Upper end.
In further preferred embodiment, the electromagnetic exciter 13 carries out exciting, the sine using sine wave
The amplitude and frequency of wave are controllable.
Wherein, the frequency and amplitude of the electromagnetic exciter 13 can control, since the electromagnetic exciter 13 is to aquatic products
Raw exciting force acts on upper plate 15, and therefore, the vibration frequency of electromagnetic exciter 13 is the vibration frequency of upper plate 15, and electromagnetism swashs
Shake device 13 vibration amplitude be upper plate 15 vibration amplitude, therefore, by control electromagnetic exciter 13 vibration frequency and shake
Dynamic amplitude is the vibration frequency and vibration amplitude of controllable upper plate 15, and the vibration frequency of upper plate 15 and vibration amplitude are to influence stream
Gu an important factor for coupling parameter (additional mass and additional damping).
According to a kind of preferred embodiment of the present invention, as shown in Figure 1, the upper plate 15 is swashed by drive rod 14 and electromagnetism
The device 13 that shakes connects.
In further preferred embodiment, upper plate 15 can be moved up and down along drive rod 14, for controlling not
Same primary clearance size, primary clearance size of the primary clearance size between upper plate and lower plate.
Wherein, with the up and down motion of upper plate 15, the primary clearance size between upper plate 15 and lower plate 16 changes, and
Primary clearance size between upper plate 15 and lower plate 16 is also to influence the key factor of fluid structurecoupling parameter.
According to a kind of preferred embodiment of the present invention, as shown in Figure 1, being provided with stabilizer blade in the lower section of the lower plate 16
17, for making lower plate 16 stand on pond 12.
In further preferred embodiment, the stabilizer blade 17 is 3 or more, and is uniformly distributed under lower plate 16
Side.
In embodiment still more preferably, the stabilizer blade 17 is 4, and is distributed evenly in four of lower plate 16
On angle.
Wherein, the number of stabilizer blade is not particularly limited, as long as lower plate stabilization can be made to stand in pond.The stabilizer blade
Height can be adjusted, therefore by adjusting the height that the height of stabilizer blade is adjustable lower plate.Preferably, the lower plate 16 with
It is to be fixedly connected between stabilizer blade 17.
The top of upper plate 15 is provided with acceleration as shown in Figure 1 and Figure 2 according to a kind of preferred embodiment of the present invention
Meter 18.
Wherein, the accelerometer is used to calculate acceleration of the upper plate 15 when moving up and down.The accelerometer is set
Seated position is not strict with, as long as being set on upper plate 15, can accurately calculate the acceleration of motion of upper plate.
According to a kind of preferred embodiment of the present invention displacement sensor is provided on upper plate 15 as shown in Figure 1 and Figure 2
19。
Wherein, the installation position of institute's displacement sensors 19 does not limit strictly, if it is set on upper plate 15, and can be accurate
The moving displacement for really measuring upper plate, obtains primary clearance size.
According to a kind of preferred embodiment of the present invention, force sensor is set in the lower section of lower plate 16 and on stabilizer blade 17
20。
Wherein, it is respectively provided on each stabilizer blade there are one force snesor, the active force being subject to for detecting lower plate is described
Active force is summing it up for the gravity of fluid structure interaction power and lower plate that lower plate is subject to, so, the fluid structurecoupling that lower plate is subject to is made
It is firmly that the adduction for the power that each force snesor detects subtracts the intrinsic gravity of lower plate.
According in a kind of preferred embodiment of the present invention, as shown in Fig. 2, the detecting system further includes control subsystem
2 and data acquisition with processing subsystem 3.
In further preferred embodiment, the measuring device main body 1 is acquired with control subsystem 2 and data respectively
It is connect with processing subsystem 3.
Wherein, the control subsystem 2 is used for the operation of control and measure device main body 1, mainly controls shaking for upper plate 15
It moves and moves up and down；The data acquisition and procession subsystem 3 is used to carry out data acquisition to measuring device main body 1, and right
The data of acquisition are handled.
According to a kind of preferred embodiment of the present invention, as shown in Fig. 2, the control subsystem 2 includes 21 He of controller
Power amplifier 22.
Wherein, controller 21 is used to control primary clearance size, vibration frequency and the vibration amplitude of upper plate, wherein described
Primary clearance size of the primary clearance size between upper plate 15 and lower plate 16, the vibration frequency are the vibration frequency of upper plate,
The vibration amplitude is the vibration amplitude of upper plate.Specifically：Controller 21 can control upper plate by controlling electromagnetic exciter
It moves up and down, then realizes the primary clearance size between control upper plate and lower plate；Controller can control electromagnetic exciter
Vibration frequency and vibration amplitude, and the vibration frequency of electromagnetic exciter and vibration amplitude are vibration frequency and the vibration of upper plate
Amplitude, therefore, controller can control the vibration of upper plate by controlling the vibration frequency and vibration amplitude of electromagnetic exciter
Frequency and vibration amplitude, i.e. controller can control the vibration frequency and vibration amplitude of upper plate by electromagnetic exciter.
In further preferred embodiment, the controller 21 receives the signal that accelerometer 18 transmits, to upper plate
Displacement accurately controlled.
According to a kind of preferred embodiment of the present invention, as shown in Fig. 2, the data acquisition and procession subsystem 3 includes
Data acquisition module 31 and data processing module 32.
Wherein, data acquisition module 31 is described for acquiring the data that displacement sensor 19 and force snesor 20 are transmitted
Data processing module 32 obtains test result for carrying out data processing.
Another aspect of the present invention provides a kind of measurement method of fluid structurecoupling parameter, it is preferable that utilizes above-mentioned measurement system
Fluid structurecoupling parameter between screen work and between screen work and pond of uniting measures, wherein the described method comprises the following steps：
Step 1 starts electromagnetic exciter 13；
Step 2, control subsystem 2 carry out parameter setting to upper plate 15, and start to test；
Step 3, data acquisition and procession subsystem 3 carry out data acquisition, and line number of going forward side by side Data preprocess obtains just step number
According to；
Step 4, data acquisition and procession subsystem 3 carry out data to preliminary data and handle eventually, obtain under different parameters
Additional mass and additional damping, i.e. fluid structurecoupling parameter.
According to a kind of preferred embodiment of the present invention, in step 2, the parameters include primary clearance size,
Vibration frequency and vibration amplitude.
Wherein, primary clearance size of the primary clearance size between upper plate 15 and lower plate 16, the vibration frequency
For the vibration frequency of upper plate 15, it is equal to the vibration frequency of electromagnetic exciter 13, the vibration amplitude is the vibration width of upper plate 15
Value is equal to the vibration amplitude of electromagnetic exciter 13.
According to a kind of preferred embodiment of the present invention, in step 3, the preliminary data, which is included under different parameters, to be obtained
The data sequence of the fluid structure interaction power and time that arrive.
According to a kind of preferred embodiment of the present invention, in step 4, processing is to use least square method to the data eventually
Nonlinear fitting is carried out to object function, obtains additional mass and additional damping.
It is known that fluid force F and additional mass mad, additional damping cadAnd the relationship of actual gap size h is such as
Shown in formula (I)：
And when lower plate is fixed, upper plate does sinusoidal motion, therefore, shown in the expression formula such as formula (2) of actual gap size h：
H=H0+ A sin (ω t) formula (2)；
Wherein, in formula (2), H0For primary clearance size, A sin (ω t) indicate the gap size under the vibration of upper plate
Float value, h then indicates the actual gap size under different time in actual experiment.
Formula (2), which is substituted into formula (1), can obtain the function that fluid structure interaction power changes over time, should as shown in formula (3)
Formula (3) is object function.
F (t)=- madAω2sin(ωt)+cadA ω cos (ω t) formula (3)
Wherein, in formula (3), F (t) indicates fluid structure interaction power, madIndicate additional mass, cadIndicate additional damping,
A indicates that the vibration amplitude of upper plate, ω indicate the vibration frequency of upper plate, and t indicates the time of vibration of upper plate, and wherein, A and ω are
Experimental setup value, as constant, therefore, formula (3) are the function of F (t)-t.
In the present invention, the fluid structure interaction power F (t) under different time can be obtained by force sensor measuring,
Upper plate carries out sinusoidal motion under the control of electromagnetic exciter, by deriving, the expression formula such as formula of fluid structure interaction power F (t)
(3) shown in.According to formula (3), nonlinear fitting is carried out using least square method, additional mass m can be obtainedadAnd additional damping
cad。
According to a kind of preferred embodiment of the present invention, in formula (3), if-madAω2For constant a, cadA ω are constant b,
Sin (ω t) is x, and cos (ω t) is y, then formula (3) can be expressed as shown in formula (3-1)：
F (x, y)=ax+by formulas (3-1)
Wherein, in formula (3-1), a and b is undetermined coefficient, and x and y is that the function of t therefore can be according to the serial number of t
According to the series data for respectively obtaining x and y, therefore, the data sequence of F (t)-t can be converted into the data sequence of F (x, y)-(x, y)
Row.
In further preferred embodiment, with formula (3-1) for object function, according to the data sequence of F (x, y)-(x, y)
Row carry out nonlinear fitting using least square method, obtain the value of undetermined coefficient a and b.
In embodiment still more preferably, due to a=-madAω2, b=cadA ω, and A and ω are known solid
Definite value, therefore m can be obtainedadAnd cadTo get to additional mass and additional damping.
Wherein, least square method is a kind of mathematical optimization techniques.Generally according to data the characteristics of, construction meet data characteristic
Object function, wherein object function contains one or more undetermined coefficients, least square method by minimize real data with
The error of object function, to determine undetermined coefficient, wherein it is assumed that F (t) is object function, Fdata(t) it is real data sequence,
Then nonlinear fitting is the undetermined coefficient found when meeting formula (4) minimum.
In invention, specifically, object function is function shown in formula (3) or formula (3-1), also, a and b is formula (3-1) institute
Show the undetermined coefficient of function, and then additional mass m is acquired according to the value of undetermined coefficientadWith additional damping cad。
According to a kind of preferred embodiment of the present invention, with formula (3-1) for object function, a and b is undetermined coefficient, is carried out
Nonlinear fitting finds undetermined coefficient a and b when meeting formula (4-1) minimum.
In embodiment still more preferably, found out in different primary clearance sizes from the value of b according to undetermined coefficient a
Under additional mass (mad) and additional damping (cad)。
Therefore, the measuring system through the invention, can obtain the additional mass under different parameters and additional damping, and
And it can respectively obtain that primary clearance is of different sizes, vibration frequency is different different to additional with vibration amplitude by reductive analysis
Quality (mad) and additional damping (cad) influence.
According to a kind of preferred embodiment of the present invention, vibration frequency, vibration width can be respectively obtained by data analysis
The influence of coupling parameter is consolidated in value and primary clearance size convection current.
In further preferred embodiment, vibration frequency, vibration are respectively obtained by the method for controlling independent variable
The influence of coupling parameter is consolidated in amplitude and primary clearance size convection current.
In embodiment still more preferably：
(1) identical vibration frequency, the First Series data of identical vibration amplitude, different primary clearance sizes are chosen, wherein
The First Series data are not both that it is big can to obtain different primary clearances since the difference of primary clearance size causes
The influence of coupling parameter is consolidated in small convection current；
(2) choose identical vibration amplitude, identical primary clearance size, different vibration frequencies second series data, wherein
The second series data are not both that it is solid can to obtain different vibration frequency convection current since the difference of vibration frequency causes
The influence of coupling parameter；
(3) the third series data of identical vibration frequency, identical primary clearance size, different vibration amplitudes is chosen, wherein
The third series data is not both that it is solid can to obtain different vibration amplitude convection current since the difference of vibration amplitude causes
The influence of coupling parameter.
In conclusion according to the method that measuring system provided by the present invention measures fluid structurecoupling parameter, can obtain not
Additional mass under same parameter and additional damping, and respectively obtain primary clearance size, vibration frequency and vibration amplitude convection current
Gu the influence of coupling parameter provides sufficient experimental data for later stage Seismic Design.
In the present invention, the screen work is the abbreviation of spent fuel storage rack.
Advantageous effect possessed by the present invention includes：
(1) simple in measurement system structure provided by the present invention, it is easy to use；
(2) it may be orifice plate that upper plate, which can be tablet, in the measuring device main body of measuring system of the present invention, therefore,
The fluid structurecoupling parameter that measuring system provided by the present invention can not only measure tablet can also measure the fluid structurecoupling of orifice plate
Parameter；
(3) method provided through the invention can obtain the fluid structurecoupling parameter under different parameters setting, Neng Gougeng
Actual Coupling effect of seepage rock deformation is accurately reflected, is offered precise data for earthquake analysis or Aseismic Design.
Embodiment
Step 1 starts measuring system.
Wherein, in this embodiment, using tool, there are four the measuring device main bodys of stabilizer blade, therefore, in measuring device master
Force snesor there are four being respectively set on four stabilizer blades of body.
Step 2 carries out parameter setting by control subsystem：Primary clearance size is 0.035mm, vibration amplitude
0.002m, vibration frequency 5Hz, start to test.
Step 3 carries out data acquisition by data acquisition and procession subsystem 3, obtains the power on four stabilizer blades and time
Relationship (referring to table 1), line number of going forward side by side Data preprocess obtains fluid structure interaction power and the data sequence of time (referring to table 2).
The data that table 1 acquires
| t | F1 | F2 | F3 | F4 | F |
| 0 | -2.83738 | -3.12111 | -2.97924 | -2.69551 | -11.6332 |
| 0.01 | -1.49967 | -1.64964 | -1.57465 | -1.42469 | -6.14865 |
| 0.02 | -0.01532 | -0.01685 | -0.01608 | -0.01455 | -0.06279 |
| 0.03 | 1.470537 | 1.617591 | 1.544064 | 1.397011 | 6.029203 |
| 0.04 | 2.812589 | 3.093848 | 2.953218 | 2.671959 | 11.53161 |
| 0.05 | 3.879601 | 4.267562 | 4.073581 | 3.685621 | 15.90637 |
| … | … | … | … | … | … |
Wherein, in table 1, F1~F4The size for the power that the force snesor on four stabilizer blades is experienced is indicated respectively (automatically
Subtract the weight of lower plate), F F1~F4Resultant force, i.e. fluid structure interaction power.In data processing, first resultant force F is chosen
The data of 2 sinusoidal cycles are intercepted as new equalization point closest to 0 data, form data sequence as shown in Table 2 (just
Step data).
2 preliminary data of table
Step 4, by data acquisition and procession subsystem to preliminary data carry out data eventually handle, obtain additional mass and
Additional damping is respectively 6.8 and 0.2.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "up" and "down" is
Based on the orientation or positional relationship under working condition of the present invention, it is merely for convenience of description of the present invention and simplification of the description, rather than
Indicate or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as limitation of the present invention.
Above in association with preferred embodiment, the present invention is described, but these embodiments are only exemplary
, only play the role of illustrative.On this basis, a variety of replacements and improvement can be carried out to the present invention, these each fall within this
In the protection domain of invention.
Claims (8)
1. a kind of fluid structurecoupling parameter progress between screen work or between screen work and pond of measuring system using fluid structurecoupling parameter
The method of measurement,
Fluid structurecoupling parameter of the fluid structurecoupling parameter between spent fuel storage rack or between screen work and pond,
The measuring system includes measuring device main body (1), and the measuring device main body (1) includes supporting rack (11) and pond
(12), electromagnetic exciter (13), upper plate (15), lower plate are disposed with from top to bottom between supporting rack (11) and pond (12)
(16) and stabilizer blade (17),
The measuring system further includes control subsystem (2) and data acquisition and processing subsystem (3), wherein the measurement dress
Main body (1) is set to connect with processing subsystem (3) with control subsystem (2) and data acquisition respectively,
It is characterized in that,
It the described method comprises the following steps：
Step 1 starts measuring system；
Step 2 carries out parameter setting to upper plate (15) by control subsystem (2), and starts to test；
Step 3 carries out data acquisition by data acquisition and procession subsystem (3), and line number of going forward side by side Data preprocess obtains just step number
According to；
Step 4 carries out data processing eventually by data acquisition and procession subsystem (3) to preliminary data, obtains under different parameters
Additional mass and additional damping, i.e. fluid structurecoupling parameter,
In step 4, processing carries out nonlinear fitting to the data using least square method eventually, obtains additional mass and additional resistance
Buddhist nun,
In step 4, according to formula (3), nonlinear fitting is carried out to data sequence using least square method, is obtained in different parameters
The additional mass and additional damping obtained under setting；
Wherein, formula (3) is as follows：
F (t)=- madAω2sin(ωt)+cadA ω cos (ω t) formula (3)
In formula (3), F (t) indicates fluid structure interaction power, madIndicate additional mass, cadIndicate that additional damping, A indicate upper plate
Vibration amplitude, ω indicate upper plate vibration frequency, t indicate upper plate time of vibration.
2. according to the method described in claim 1, it is characterized in that,
The electromagnetic exciter (13) is used to generate exciting force to water, and exciting force is then acted on upper plate (15)；
The upper plate (15) is for simulating practical spent fuel storage rack；
The lower plate (16) is for simulating practical neighbouring screen work or practical adjacent pool；
The stabilizer blade (17) is for making lower plate (16) stand on pond (12).
3. according to the method described in claim 2, it is characterized in that,
The upper plate (15) and lower plate (16) are respectively rectangular slab；And/or
The electromagnetic exciter (13) is fixed on the upper end of supporting rack (11)；And/or
The upper plate (15) is connect by drive rod (14) with electromagnetic exciter (13)；And/or
The stabilizer blade (17) is 3 or more, and the stabilizer blade (17) is symmetrically distributed in the lower section of lower plate (16).
4. according to the method described in claim 3, it is characterized in that,
The upper plate (15) and lower plate (16) are respectively rectangular steel plates；And/or
The electromagnetic exciter (13) is fixed on the upper end of supporting rack (11)；And/or
The upper plate (15) is connect by drive rod (14) with electromagnetic exciter (13)；And/or
The stabilizer blade (17) is 4, and is distributed evenly in respectively on four angles of lower plate (16).
5. according to the method described in claim 3, it is characterized in that,
The electromagnetic exciter (13) carries out exciting using sine wave, and the amplitude and frequency of the sine wave are controllable；And/or
Upper plate (15) can be moved up and down along drive rod (14), described initial for controlling different primary clearance sizes
Primary clearance size of the gap size between upper plate and lower plate.
6. according to the method described in claim 5, it is characterized in that,
Accelerometer (18) is provided on upper plate (15), for calculating acceleration of the upper plate (15) when moving up and down；And/or
Displacement sensor (19) is provided on upper plate (15), for detecting the primary clearance between upper plate (15) and lower plate (16)
Size；And/or
The setting force sensor (20) below lower plate (16) and on stabilizer blade (17), the active force being subject to for detecting lower plate,
Wherein, the active force is the adduction of the gravity of fluid structure interaction power and plate.
7. according to the method described in claim 1, it is characterized in that,
The control subsystem (2) includes controller (21) and power amplifier (22)；Wherein, the controller (21) is for leading to
Cross primary clearance size, vibration frequency and the vibration amplitude of electromagnetic exciter (13) control upper plate (15), wherein it is described it is initial between
Primary clearance size of the gap size between upper plate (15) and lower plate (16), the vibration frequency are the vibration frequency of upper plate, institute
State the vibration amplitude that vibration amplitude is upper plate；And/or
The data acquisition and procession subsystem (3) includes data acquisition module (31) and data processing module (32), wherein institute
Data acquisition module (31) is stated for acquiring the data that displacement sensor (19) and force snesor (20) are transmitted, at the data
Reason module (32) obtains experimental result for carrying out data processing.
8. according to the method described in claim 1, wherein,
In step 2, the parameter includes primary clearance size, vibration frequency and vibration amplitude, wherein the primary clearance is big
The small primary clearance size between upper plate (15) and lower plate (16)；The vibration frequency is the vibration frequency of upper plate (15),
Equal to the vibration frequency of electromagnetic exciter (13)；The vibration amplitude is the vibration amplitude of upper plate (15), is equal to electromagnetic exciting
The vibration amplitude of device (13)；And/or
In step 3, the preliminary data is included in the data sequence of the fluid structure interaction power and time that are obtained under different parameters
Row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351473.5A CN105973566B (en) | 2016-05-25 | 2016-05-25 | A kind of measuring system and its measurement method of fluid structurecoupling parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351473.5A CN105973566B (en) | 2016-05-25 | 2016-05-25 | A kind of measuring system and its measurement method of fluid structurecoupling parameter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105973566A CN105973566A (en) | 2016-09-28 |
| CN105973566B true CN105973566B (en) | 2018-11-06 |
Family
ID=56955800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610351473.5A Active CN105973566B (en) | 2016-05-25 | 2016-05-25 | A kind of measuring system and its measurement method of fluid structurecoupling parameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105973566B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768765B (en) * | 2017-01-19 | 2023-04-11 | 中国石油大学(华东) | Experimental device for be used for studying riser system fluid-structure interaction vibration characteristic |
| CN106932161B (en) * | 2017-03-23 | 2023-07-14 | 华北电力大学 | Device and method for measuring fluid-solid coupling parameter vibrating table of spent fuel storage grillwork |
| CN107356406A (en) * | 2017-08-15 | 2017-11-17 | 华北电力大学 | A kind of measuring method and device of the fluid structurecoupling parameter of multiple spent fuel storage racks |
| CN108304616B (en) * | 2018-01-05 | 2021-09-28 | 华北电力大学 | Fast reactor body seismic test modeling method considering fluid-solid coupling effect |
| CN108362459A (en) * | 2018-05-17 | 2018-08-03 | 上海核工程研究设计院有限公司 | A kind of 1x9 types spent fuel storage rack shock test part |
| CN113324720B (en) * | 2021-06-04 | 2022-12-16 | 华北电力大学 | Coaxial double-layer cylinder additional mass test measuring device and measuring method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945686A (en) * | 2012-11-02 | 2013-02-27 | 中国核电工程有限公司 | Spent fuel pool state continuous monitoring method and system |
| CN203659445U (en) * | 2013-12-31 | 2014-06-18 | 中核武汉核电运行技术股份有限公司 | Fuel assembly deformation measuring device |
| CN205679375U (en) * | 2016-05-25 | 2016-11-09 | 华北电力大学 | A kind of measurement system of fluid structurecoupling parameter |
-
2016
- 2016-05-25 CN CN201610351473.5A patent/CN105973566B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945686A (en) * | 2012-11-02 | 2013-02-27 | 中国核电工程有限公司 | Spent fuel pool state continuous monitoring method and system |
| CN203659445U (en) * | 2013-12-31 | 2014-06-18 | 中核武汉核电运行技术股份有限公司 | Fuel assembly deformation measuring device |
| CN205679375U (en) * | 2016-05-25 | 2016-11-09 | 华北电力大学 | A kind of measurement system of fluid structurecoupling parameter |
Non-Patent Citations (3)
| Title |
|---|
| A theoretical model and experiments on the nonlinear dynamics of parallel plates subjected to laminar/turbulent squeeze-film forces;P. Piteau, J.Antunes;《Journal of Fluids and Structures》;20120613;第1-11页，图1-6 * |
| Experimental investigation on fluid–structure-coupled dynamic characteristics of the double fuel assemblies in a fast reactor;Lu Daogang et al;《Nuclear Engineering and Design》;20131231;第180-184页，图1-8 * |
| 快堆燃料组件抗震分析二维流固耦合理论与试验研究;刘爱国;《CNKI中国优秀硕士论文全文数据库(电子期刊)》;20100930;正文第22-25页，图3.2.1-3.2.2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105973566A (en) | 2016-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105973566B (en) | A kind of measuring system and its measurement method of fluid structurecoupling parameter | |
| CN107389267A (en) | A kind of rotor-support-foundation system dynamic balancing encourages recognition methods | |
| CN102853989B (en) | Swing aeroelastic model and shock-test wind tunnel test method thereby | |
| CN105571775B (en) | Dynamic force calibration method | |
| CN108105039B (en) | A kind of deformation test device and application thereof that wind-driven generator tower is connect with basis | |
| CN205679375U (en) | A kind of measurement system of fluid structurecoupling parameter | |
| CN105421172B (en) | Measuring method for one-sided operating double track railway track control net | |
| CN105893665B (en) | It is a kind of using combination weighting-grey correlation machine tool beam optimization design appraisal procedure | |
| CN204807173U (en) | Former coal bunker metering device that weighs on line | |
| CN111238729A (en) | Precise static balance balancing method for pitching shaft of large-size photoelectric theodolite | |
| CN104100674A (en) | Earthquake preventing method for floating cultural relic | |
| Jiang et al. | Earthquake response analysis of tall reinforced concrete chimneys considering eccentricity | |
| Dashti et al. | Centrifuge modeling of seismic soil-structure-interaction and lateral earth pressures for large near-surface underground structures | |
| CN108279714A (en) | A kind of distribution line traffic control pressure feedback offset-type air supporting vibration control system | |
| CN208902571U (en) | A kind of device measuring lateral stress and strain in discrete particles motion process | |
| CN104483085A (en) | Design method of special test base for force transmissibility of vibration equipment | |
| Spanos et al. | Computational stochastic mechanics | |
| CN207197759U (en) | A kind of spent fuel storage rack fluid structurecoupling parametric vibration platform measurement apparatus | |
| Calì et al. | Vibration testing and system identification of a monumental building in Sabbioneta, Italy | |
| Abratowski et al. | The overview of construction and selected aspects of testing mounting frames of aircraft machine guns | |
| El-Shafee et al. | Analysis of the response of a centrifuge model of a level site subjected to biaxial base excitation | |
| RUBIN et al. | TECHNICAL REALIZATION OF THE HARDWARE-SOFTWARE COMPLEX FOR MONITORING THE CONDITION AND FORECASTING SAFETY OF HYDRAULIC ENGINEERING STRUCTURES AND THEIR FOUNDATIONS | |
| Liu et al. | Design on the Shaking Table Test for Ground Crack Dynamic Response under Earthquake | |
| King et al. | Laboratory-scale distributed pressure measurements of blade interaction with JSC-1A lunar simulant | |
| CN111044139A (en) | Method and system for testing inherent frequency of shielding ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |