CN106289688A - Antiskid brake controls the method for testing of device vibratory response - Google Patents
Antiskid brake controls the method for testing of device vibratory response Download PDFInfo
- Publication number
- CN106289688A CN106289688A CN201610585004.XA CN201610585004A CN106289688A CN 106289688 A CN106289688 A CN 106289688A CN 201610585004 A CN201610585004 A CN 201610585004A CN 106289688 A CN106289688 A CN 106289688A
- Authority
- CN
- China
- Prior art keywords
- data
- angle
- vibration
- circuit board
- frequency response
- 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.)
- Granted
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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
A kind of antiskid brake controls the method for testing of device vibratory response, and the power that is respectively adopted hammers method into shape, the method for electric vibration table test is surveyed.When using electric vibration table test, test in the range of using maximum, minimum vibration value, use two horn cuppings, four horn cuppings, electric vibration table method of testing progressively to revise antiskid brake successively and control the vibration calculating model of device, meet antiskid brake and control the actually used situation of device, improve the precision of finite element vibration calculating model, make the computation model error after correction vibration calculating model less than 3%.
Description
Technical field
The present invention relates to the vibrating failure diagnosis field of civil aircraft electronic product, specifically a kind of collection antiskid brake control
The method of device vibratory response data processed, test data control the vibration calculating model of device for revising antiskid brake.
Background technology
Test electronic product under the conditions of given vibrational excitation mode of oscillation and response data, its objective is for repairing
The computation model of positron product, electronic product is sensitive to weak link the complete design of vibration to use the method calculated to determine
Improve, improve the ability of electronic product vibration resistance.
Revise vibration calculating model it is crucial that obtain modal measurement data accurately, vibration-mode analysis is divided into test mould
State is analyzed and computational modal analysis, and the former is the data obtained by test, and the latter is the data obtained according to finite element analysis.
Through the method frequently with Modal Test corrected Calculation mode in engineering.
Both at home and abroad the vibration test of electronic product is proved, during stepping up vibration value, electronic product meeting
Occur that vibration performance is defective, if continuing to improve vibration value to there will be the vibration damage of electronic product, after vibration damage occurs
Even if the performance of electronic product can not be recovered under conditions of eliminating vibration stress, here it is the destruction pole of this electronic product
Limit, U.S.'s GMW8287 standard is shown in the definition of the limit of rupture.Vibration damage is the most all in research, and carries out the broken of electronic product
The physical test of bad property, for analyzing the vibration fault mechanism of electronic product.
Owing to the vibration weak link required time using exemplar test test electronic product in kind is long, costly, domestic
The outer vibration fault using computer technology to analyze electronic product that all begins one's study, but use the model of vibration that computer is set up also
Need measured data correction, improve the accordance of computer model and measured data.
The vibration fault reason of common electronics product has:
1) solder joint ftractures under vibrating conditions；
2) pin fracture under vibrating conditions；
3) circuit board loosens under vibrating conditions；
4) device damage under vibrating conditions, causes cisco unity malfunction.
The most conventional electronic product vibration test standard has:
1) air standard HB5830.5 " airborne equipment environmental condition and test method vibration "；
2) GJB GJB150A.16 " military equipment laboratory environment test method vibration test "；
3) Unite States Standard MIL-STD-810F " environmental project considers and laboratory test 514.5 is vibrated "；
4) Unite States Standard GMW8287 " high accelerated aging/highly accelerated stress screen and sampling observation ".
Above-mentioned standard is applicable to antiskid brake and controls the vibration test of device.
It is the electronic product in airplane brake system that antiskid brake controls device, aircraft provide working power, receiver
The wheel rotation speed change signal of telecommunication of wheel speed sensor impression, antiskid brake controls device and carries out landing according to this signal of telecommunication anti-skidding
Brake pressure in brake process controls.This antiskid brake controls device can complete normal land antiskid brake control, takes off
Line brake controls, and protection among wheels controls, and ground protection controls, and the wheel spline brake after undercarriage stowage etc. controls function.
Foreign current situation:
In order to improve the vibration calculating model accuracy of electronic product, the following test of external employing is according to revising shaking of electronic product
Movable model:
Employing power hammer taps pcb board and gathers mode of oscillation response data.Pcb board elastic threads free suspension, on pcb board
Fixing acceleration signal collection point, is hammered into shape by power and taps four angles of pcb board respectively and carry out exciting, obtain the frequency of whole circuit board
Ring function curve and data；The using method of power hammer has the description that buying is worn.
According to surveying the pcb board obtained and the frequency response function curve of electronic product entirety and data, revise electronic product
Vibration calculating model.
Although above-mentioned measuring technology can effectively revise the vibration calculating model of electronic product, but there is following deficiency:
1) frequency response function curve and data, the frequency response letter of electronic product entirety of power hammer percussion method actual measurement pcb board are used
Number curve and data, revise data few, and the effect improving vibration calculating precision is little；
2) in use there is high magnitude vibration and the vibration of low value, the power hammer of employing taps the test data of circuit board, no
Be enough to the multiple vibration magnitude responses in using is carried out complete matching.
Present status in China:
The vibration data of the domestic electronic product following technical testing electronic product of employing:
It is also adopted by power hammer and taps the method collection signal of pcb board.Pcb board elastic threads free suspension, fixing acceleration letter
Number collection point, pastes an acceleration transducer on each collection point, is hammered into shape by power and taps four angles of pcb board respectively and carry out
Excitation, obtains frequency response function curve and the data of whole circuit board；
The above-mentioned technology of domestic employing carries out Vibration Analysis, although can effectively revise the vibration calculating mould of electronic product
Type, but there is following deficiency:
1) the frequency response function curve of employing power hammer percussion actual measurement pcb board is bent with the frequency response function of data, electronic product entirety
Line and data, revise data few, and the effect improving vibration calculating precision is little；
2) in use there is high magnitude vibration and the vibration of low value, prior art uses power hammer to tap the test of circuit board
Data, are not enough to the multiple vibration magnitude responses in using is carried out complete matching；
3) Xi'an Aviation Brake Technology Co., Ltd. discloses a kind of true in the patent of invention of ZL201110310884.7
The method determining the airplane antiskid braking control box vibration working stress limit.The method uses reliability enhancement testing equipment and stepping
The method applying vibration stress, it is 5Grms～15Grms that vibration starts value, and vibration step-length is 1Grms～5Grms, during holding
Between be 5min, the testing time is 5min, and the vibration working stress limit that obtains of test is 40Grms～60Grms.By first
The technical performance increasing on vibration performance underproof vibration value, reducing vibration stress test antiskid braking control box occurs,
Determine the vibration working stress limit of antiskid braking control box.The technical scheme of this invention determines that vibration value and antiskid brake
Control box performance and for the first time the underproof working stress limit occurs, do not test mode of oscillation, and technical solution of the present invention is unrelated.
4) Xi'an Aviation Brake Technology Co., Ltd. discloses a kind of anti-in the patent of invention of ZL 201310169895.7
The method of sliding brake-control box flutter failure limit test.The method uses electric vibrating system and stepping to apply vibration stress
Method, it is 4Grms～8Grms that vibration starts value, and vibration step-length is 2Grms, and vibration keeps and the testing time is 15min.Shake
Momentum value carries out the micro-of 4Grms～8Grms at the end of each vibration level after reaching 18Grms and shakes, micro-shake holding and test time
Between be also 15min.The flutter failure limiting range of stress that test obtains is 22Grms～26Grms.The flutter failure limiting range of stress is anti-skidding
The vibration value of brake-control box generation loss of function.The technical scheme of this invention determines that vibration value and antiskid brake control
The bursting stress limit of box loss of function, does not the most test mode of oscillation, and technical solution of the present invention is unrelated.
Summary of the invention
For overcoming the deficiency that prior art is low to electronic product model of vibration correction precision, the present invention proposes a kind of anti-skidding
The method of testing of braking control device vibratory response.
The detailed process of the present invention is:
Step 1, with elastic threads free vertical hanging in angle on circuit board two, uses power hammer percussion mode exciting, gathers every
The frequency response function curve of block circuit board and data.
The first step, the frequency response function curve of four angle excitings generations of acquisition controlling plate successively and data.In all matter of panel
Amount is more than on the components and parts of 3g, and 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all answered with dynamic
Become Acquisition Instrument to be connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts.Circuit board
Two on angle connect elastic threads, by this panel vertical hanging, after circuit board stably stops swinging, laboratory technician's firmly hammer successively
Tapping four angle excitings of circuit board, a position firmly hammer taps once.Gather the frequency response letter that four angle excitings produce successively
Number curve and data.
Second step, the frequency response function curve of four angle excitings generations of acquisition and recording plate successively and data.In all matter of data board
Amount is more than on the components and parts of 3g, and 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all answered with dynamic
Become Acquisition Instrument to be connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts.Data board
Two on angle connect elastic threads, by this data board vertical hanging, after plate to be recorded stably stops swinging, laboratory technician strikes with hammer successively
Hitting four angle excitings of data board, a position firmly hammer taps once.Gather the frequency response function that four angle excitings produce successively
Curve and data.
Step 2, horizontally suspends at four angles of circuit board by elastic threads, uses hammer mode exciting, gathers every piece of circuit board
Frequency response function curve and data.
Connect four elastic threads at four angles of circuit board, by elastic threads, circuit board level hung, carry out power hammer exciting,
Power hammer exciting, based on pulse testing principle and modal theory, signal test obtained input computer, tries to achieve the mould of circuit board
State parameter.Hammer mode exciting is used to gather frequency response function curve and the data of every piece of circuit board.One position firmly hammers percussion into shape
Once.
The vibrational state that the Free Modal simulated aircraft that corner horizontally suspends climbs, and test oneself when mushing flight
By modal information.
The frequency response function curve of described every piece of circuit board of collection with the detailed process of data is:
The first step, the frequency response function curve of four angle excitings generations of acquisition controlling plate successively and data.In all matter of panel
Amount is more than on the components and parts of 3g, and 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all answered with dynamic
Become Acquisition Instrument to be connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts.Controlling
Four angles of plate connect four elastic threads respectively, and the angle of each elastic threads and horizontal plane is 45 °, this panel level is hanged
Hang, after making sheet to be controlled stably stops swinging, laboratory technician use power hammer to tap four angle excitings of panel, a position successively
Firmly hammer taps once.Gather frequency response function curve and data that four angle excitings produce successively.
Second step, the frequency response function curve of four angle excitings generations of acquisition and recording plate successively and data.In all matter of data board
Amount is more than on the components and parts of 3g, and 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all answered with dynamic
Become Acquisition Instrument to be connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts.At record
Four angles of plate connect four elastic threads respectively, and the angle of each elastic threads and horizontal plane is 45 °, this data board level is hanged
Hang, after plate to be recorded stably stops swinging, laboratory technician use power hammer to tap four angle excitings of data board, a position successively
Firmly hammer taps once.Gather frequency response function curve and data that four angle excitings produce successively.
Step 3, collecting circuit board frequency response function curve and data.
Use electric vibration table method of testing collecting circuit board frequency response function curve and data, specifically:
The first step, determines that antiskid brake controls the vibration value scope during device uses
Determine vibration value test scope according to measured data, determine that the peak acceleration root-mean-square value of vibration-testing is
25Grms, minimum acceleration root-mean-square value is 5Grms.Absent variable vibration value does not list test scope in.
Second step, determines the test point of electric vibration table test collecting circuit board frequency response function curve and data
Multiple test point is determined in vibration measurement scope 5Grms～25Grms of antiskid brake control device.
The each test point determined in described vibration measurement scope 5Grms at antiskid brake control device～25Grms is respectively
Being: first test point is 5Grms, second test point is 10Grms, and the 3rd test point is 15Grms, the 4th test point
For 20Grms, the 5th test point is 25Grms.
3rd step, installs antiskid brake and controls device.
4th step, controls layout acceleration transducer on device in this antiskid brake.
Described control on device layout acceleration transducer respectively in this antiskid brake: each matter on described panel
Amount pastes 1 acceleration sensing respectively more than on the components and parts of 3g and on the data board each quality components and parts more than 3g
Device.The each acceleration transducer pasted all is connected with dynamic strain Acquisition Instrument and dynamic signal analyzer, is used for gathering each
The acceleration signal of components and parts and displacement signal.
5th step, gathers each test point antiskid brake the most successively and controls the vibratory response of device.Specifically,
The vibration value that electric vibration table controls computer sets gradually the vibration value into this test point；In each vibration
Vibrating 10min on value, wherein front 5min observes the stable situation of electric vibration table, and rear 5min tests all acceleration sensings
The acceleration information of device, respectively obtains this antiskid brake and controls device in the frequency response function curve of each test point and data.
The data gathered are as the foundation revising the model of vibration using finite element software to set up.
The present invention gathers antiskid brake control device and shakes under the conditions of proposing power hammer exciting and electric vibration table test two kinds
The method of dynamic response signal, and the test scope of electric vibration table include antiskid brake control device use in minimum and maximum
Vibration value.
Antiskid brake controls the vibration damage of device and belongs to mechanical damage, and mode is the natural vibration characteristic of frame for movement,
Each mode has the modal parameters such as specific natural frequency, damping ratio and Mode Shape；Modal parameter can by calculate or
Analysis of experiments obtains, and modal calculation or analysis of experiments process are model analysis.If this analysis process is obtained by FEM calculation
Arrive, be just computational modal analysis；If gathering vibration signal by test, just it is test modal analysis.The present invention uses test
Modal data correction FEM calculation mode, thus obtain vibration calculating model accurately, this model is used for determining antiskid brake
Control the vibration weak link of device, reduce the vibration test of exemplar in kind, reach energy-saving and cost-reducing purpose.
The present invention is respectively adopted power hammer method, the method for electric vibration table test is surveyed.Employing electric vibration table is tested
Time, test in the range of using maximum, minimum vibration value, revise antiskid brake successively according to test data and control shaking of device
Dynamic computation model, obtains high accuracy antiskid brake and controls the vibration calculating model of device.
For realizing described technical purpose, the present invention uses two horn cuppings, four horn cuppings, electric vibration table method of testing progressively to repair successively
Positive antiskid brake controls the vibration calculating model of device, improves the precision of finite element vibration calculating model.Technical scheme concrete
Inside have:
1) determine that antiskid brake controls the vibration value scope during device uses；
2) Free Modal data acquisition one: be connected to angle free suspension on circuit board two by two elastic threads, and use vertical
Straight position hangs, and uses corner hammering method to gather frequency response function curve and the data of this circuit board successively；
3) Free Modal data acquisition two: be connected in four angles of circuit board by four elastic threads, by diagonal horizontal level
Hanging aerial, the angle of each elastic threads and horizontal plane is 45 °, uses hammering method vertically to tap the corner of circuit board successively,
The frequency response function curve of collecting circuit board and data；
4) fixing modality data acquisition three: in the range of antiskid brake controls the use vibration value of device, use electronic
Vibration table controls device to antiskid brake to be tested, and gathers the frequency response function curve in each test point and data；
5) above-mentioned Free Modal test data and electric vibration table test data, control device for revising antiskid brake
Computation model, finally gives the model controlling device vibration weak link for calculating antiskid brake.
Present invention provide that: test job proceeds to survey mode and calculate compared with mode, and error is less than 5%, Modal Test
Test job proceeds to tie when this antiskid brake controls correction FEM (finite element) model and the Model Measured phase ratio error of device less than 5%
Bundle.
So far, the test job of antiskid brake control device vibratory response data terminates.
For proving the implementation result of the present invention, the present invention controls the limited element calculation model of device to this antiskid brake, depends on
Secondary employing two horn cupping correction, four horn cupping corrections, use electric vibration table to be fixed the data correction of mould measurement, it was demonstrated that this
The calculating process of obvious results fruit is:
The first step, the effect of the measured signal correction vibration calculating model of the free vertical hanging in angle circuit board on two
On two, the measured signal correction FEM (finite element) model effectiveness comparison of the free vertical hanging in angle circuit board is shown in Table 2.
The effectiveness comparison of table 2 two horn cupping test data correction circuit board finite element vibration calculating model
In table 2: single order, second order ... n rank are kinetics terms, first-order modal is driving frequency and the circuit board of external force
When natural frequency is equal, at this moment the vibration shape of circuit board is just a first order mode；Second-order modal be the driving frequency of external force be circuit board
During the twice of natural frequency, the vibration shape of circuit board is just second_mode；... n order mode state be the driving frequency of external force be circuit board
During n times of natural frequency, the vibration shape of circuit board is just n first order mode.
Second step, compares the effect of corner freely horizontal suspension circuit plate measured signal correction vibration calculating model
Continue to use corner freely horizontal suspension circuit plate measured signal correction FEM (finite element) model effectiveness comparison to be shown in Table 3.
The effectiveness comparison of table 3 four horn cupping test data correction circuit board finite element vibration calculating model
3rd step, compares the effect of the test data correction circuit board vibration calculating model of electric vibration table
Finally, the effectiveness comparison of electric vibration table measured data correction circuit board computation model is used to be shown in Table 4.
The comparison of table 4 electric vibration table measured data correction circuit board vibration calculating model
4th step, revises the error analysis after terminating
Table 4 is used finally to revise the data data as error analysis.
Error analysis formula: δ=(finite element correction mode-test mode)/test mode (1)
Calculate panel first-order error: δ=(215-212)/212=1.42%
Calculate data board first-order error: δ=(224-221)/221=1.35%
Calculate panel second order error: δ=(301-295)/295=2%
Calculate data board second order error: δ=(318-313)/313=1.59%
In 3% range of error that present invention provide that.
Prior art only with a modification method, the Error Calculation as a example by two horn cuppings is:
Calculate panel first-order error: δ=(236-216)/216=9.25%
Calculate data board first-order error: δ=(246-226)/226=8.8%
Calculate panel second order error: δ=(238-299)/221=13%
Calculate data board second order error: δ=(348-319)/319=9.1%
Existing method correction limited element calculation model, first-order error can be less than 10%, second order error be less than 20%, and
Prior art is compared, and the present invention tests data and significantly improves the computational accuracy of model of vibration.
The present invention and the Integrated comparative of prior art implementation result:
1) overall plan compares: the vibration calculating model of prior art electronic product uses repairing of a kind of power hammer exciting test
Correction method, this modification method is applicable to modal theory research, and precision is low should not be applied in engineering.The present invention uses vertical outstanding
Hang, horizontally suspend the modification method of two kinds of power hammer tests, use the multiple spot vibration-testing data correction of electric vibration table test to prevent
The vibration calculating model of sliding braking control device, meets antiskid brake and controls the actually used situation of device, and overall plan improves
The correction precision of vibration calculating model.
2) measuring accuracy compares；Prior art revised vibration calculating single order precision is 10%, and error is big；The present invention repaiies
Computation model error after positive vibration calculating model is less than 5%
Detailed description of the invention
The present embodiment is to control as a example by device by certain airplane antiskid braking, determines that this antiskid brake controls device vibration calculating
The modification method of model.
The present embodiment uses the method for employing power hammer exciting method of testing and electric vibration table test to step up anti-skidding
The correction precision of braking control device limited element calculation model, uses test modal data corrected Calculation mode, obtains high accuracy
Vibration calculating model.The mode testing method that wherein test of power hammer exciting is divided into again two jiaos to hang and corner hangs.
The present embodiment antiskid brake controls have panel and two pieces of circuit boards of data board in device.
In implementation process of the present invention, the test instrunment of employing, instrument and software are shown in Table 1.
Table 1 test instrunment, instrument and software
Step 1, with elastic threads free vertical hanging in angle on circuit board two, uses power hammer percussion mode exciting, gathers every
The frequency response function curve of block circuit board and data
On two of circuit board, angle connects two elastic threads respectively, by elastic threads by free for circuit board vertical hanging, adopts
Frequency response function curve and the data of every piece of circuit board are gathered with hammer mode.Power hammer is a kind of mould measurement exciting instrument, by trying
The person of testing operates.
Power hammer exciting, by means of modern test technology and the fourier transform of computer, is managed with pulse testing principle and mode
Opinion tries to achieve a kind of method of modal parameters.In power hammer method test, it is hammer force pumping signal to circuit board input, logical
Cross the acceleration responsive signal of measurement structure each point, the transmission function of circuit board can be calculated.Power hammer by hammer handle equipped with
The signal transmission jump bit of private cable, force transducer, impact base and one group of elastic impact pad composition.
The Free Modal simulated aircraft horizontal vibration state of two upper angle free suspension circuit boards, tests aircraft horizontal flight
Time Free Modal information.
The first step, the frequency response function curve of four angle excitings generations of acquisition controlling plate successively and data.In all matter of panel
Amount is more than on the components and parts of 3g, and 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all answered with dynamic
Become Acquisition Instrument to be connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts.Circuit board
Two on angle connect elastic threads, by this panel vertical hanging, after circuit board stably stops swinging, laboratory technician's firmly hammer successively
Tapping four angle excitings of circuit board, a position firmly hammer taps once.Gather the frequency response letter that four angle excitings produce successively
Number curve and data.
Second step, the frequency response function curve of four angle excitings generations of acquisition and recording plate successively and data.In all matter of data board
Amount is more than on the components and parts of 3g, and 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all answered with dynamic
Become Acquisition Instrument to be connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts.Data board
Two on angle connect elastic threads, by this data board vertical hanging, after plate to be recorded stably stops swinging, laboratory technician strikes with hammer successively
Hitting four angle excitings of data board, a position firmly hammer taps once.Gather the frequency response function that four angle excitings produce successively
Curve and data.
This step 2 horn cupping test mode and FEM calculation mode collect and are shown in Table 5.
Table 5 two horn cupping test mode and FEM calculation mode collect
In table 5: single order, second order ... n rank are kinetics terms, first-order modal is driving frequency and the circuit board of external force
When natural frequency is equal, at this moment the vibration shape of circuit board is just a first order mode；Second-order modal be the driving frequency of external force be circuit board
The twice of natural frequency time, the vibration shape of circuit board is just second_mode；... n order mode state be the driving frequency of external force be circuit
During n times of plate natural frequency, the vibration shape of circuit board is just n first order mode.
Step 2, horizontally suspends at four angles of circuit board by elastic threads, uses hammer mode exciting, gathers every piece of circuit board
Frequency response function curve and data
Connect four elastic threads at four angles of circuit board, by elastic threads, circuit board level hung, carry out power hammer exciting,
Power hammer exciting, based on pulse testing principle and modal theory, signal test obtained input computer, tries to achieve the mould of circuit board
State parameter.Hammer mode exciting is used to gather frequency response function curve and the data of every piece of circuit board by laboratory technician.One position is used
Power hammer taps once.The using method of power hammer hammers description into shape according to power.
The vibrational state that the Free Modal simulated aircraft that corner horizontally suspends climbs, tests freedom when mushing flight
Modal information.
The first step, the frequency response function curve of four angle excitings generations of acquisition controlling plate successively and data.In all matter of panel
Amount is more than on the components and parts of 3g, and 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all answered with dynamic
Become Acquisition Instrument to be connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts.Controlling
Four angles of plate connect four elastic threads respectively, and the angle of each elastic threads and horizontal plane is 45 °, this panel level is hanged
Hang, after making sheet to be controlled stably stops swinging, laboratory technician use power hammer to tap four angle excitings of panel, a position successively
Firmly hammer taps once.Gather frequency response function curve and data that four angle excitings produce successively.Described power hammer is a kind of special
Exciting instrument, firmly size presses operation instructions.
Second step, the frequency response function curve of four angle excitings generations of acquisition and recording plate successively and data.In all matter of data board
Amount is more than on the components and parts of 3g, and 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all answered with dynamic
Become Acquisition Instrument to be connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts.At record
Four angles of plate connect four elastic threads respectively, and the angle of each elastic threads and horizontal plane is 45 °, this data board level is hanged
Hang, after plate to be recorded stably stops swinging, laboratory technician use power hammer to tap four angle excitings of data board, a position successively
Firmly hammer taps once.The description that the using method of power hammer is worn according to buying.Gather the frequency that four angle excitings produce successively
Ring function curve and data.
This step 4 horn cupping test mode and FEM calculation mode collect and are shown in Table 6.
Table 6 four horn cupping test mode and FEM calculation mode collect
Step 3, uses electric vibration table method of testing collecting circuit board frequency response function curve and data
For testing mode of oscillation when antiskid brake controls device restrained condition, because antiskid brake controls device and installs
It is in restrained condition aboard, so frequency response function curve and the data of restrained condition need to be tested, it is further provided revise anti-
The information of sliding brake-control box model of vibration.
Owing to fixing mode is identical with installation restrained condition, therefore this step is iterative process, and iteration tests proceeds to meter
Count and terminate according to during with measured data phase ratio error less than 5%.
The first step, determines that antiskid brake controls the vibration value scope during device uses
Determining vibration value test scope according to measured data, the peak acceleration root-mean-square value in landing aircraft moment is
20Grms, the acceleration root-mean-square value in airport ground travels is 10Grms.In order to cover range, determine vibration-testing
Peak acceleration root-mean-square value be 25Grms, minimum acceleration root-mean-square value is 5Grms.Absent variable vibratory output
Value does not list test scope in.
Second step, determines the test point of electric vibration table test collecting circuit board frequency response function curve and data
In antiskid brake controls vibration measurement scope 5Grms～the 25Grms of device, determine that first test point is
5Grms, second test point is 10Grms, and the 3rd test point is 15Grms, and the 4th test point is 20Grms, the 5th survey
Pilot is 25Grms.
3rd step, is arranged on this antiskid brake control device on electric vibration table.Panel, data board are arranged on anti-
In the housing of sliding braking control device, this antiskid brake is controlled device and is arranged on the extension of electric vibration table according to installation position
On head.
4th step, controls layout acceleration transducer on device in this antiskid brake.Each quality on described panel
1 acceleration sensing is pasted respectively more than on the components and parts of 3g and on the data board each quality components and parts more than 3g
Device.The each acceleration transducer pasted all is connected with dynamic strain Acquisition Instrument and dynamic signal analyzer, is used for gathering each
The acceleration signal of components and parts and displacement signal.The signal collected is for revising the model of vibration using finite element to set up.
5th step, when gathering each test point the most successively, antiskid brake controls the vibratory response of device.Specifically:
Gather antiskid brake when vibration value is 5Grms and control the vibratory response of device.Control to calculate by electric vibration table
The vibration value of machine is set to 5Grms, opens electric vibration table, vibrates 10min on the value of 5Grms, and wherein front 5min sees
Examining the stable situation of electric vibration table, rear 5min tests the acceleration information of all acceleration transducers, and the data of collection are made
For revising the foundation of the model of vibration using finite element software to set up.
Gather antiskid brake when vibration value is 10Grms and control the vibratory response of device.Control to calculate by electric vibration table
The vibration value of machine is set to 10Grms, opens electric vibration table, vibrates 10min, wherein front 5min on the value of 10Grms
Observing the stable situation of electric vibration table, rear 5min tests the acceleration signal of all acceleration transducers, collects dynamic
State signal is as the foundation revising the model of vibration that finite element software is set up.
Gather antiskid brake when vibration value is 15Grms, 20Grms, 25Grms successively and control the vibratory response of device.Depend on
The secondary vibration value that electric vibration table controls computer is set to 15Grms, 20Grms, 25Grms, opens electric vibration table,
Vibrating 10min successively on the value of 15Grms, 20Grms, 25Grms respectively, wherein front 5min observes electric vibration table operation
Stable case, rear 5min tests the acceleration information of all acceleration transducers, as revising after the dynamic signal analysis of collection
The foundation of the model of vibration that finite element software is set up.
This step is fixed mould measurement data and FEM calculation mode and is collected and be shown in Table 7.
Table 7 is fixed mould measurement data and is collected with FEM calculation mode
Test data are imported the model of vibration that computer correction finite element is set up successively.
Panel first-order modal Error Calculation: (215-212)/215=1.4%；
Panel second-order modal Error Calculation: (301-295)/295=2%；
Data board first-order modal Error Calculation: (224-221)/224=1.3%；
Data board second-order modal Error Calculation: (318-313)/318=1.6%；
Calculate mode and actual measurement mode phase ratio error is less than 5%, no longer carry out successive iterations test, fixing mould measurement work
Work terminates.
So far, the work that test antiskid brake controls device mode of oscillation data is complete, has obtained this antiskid brake and has controlled
The frequency response function curve of device and data.
Claims (5)
1. the method for testing of an antiskid brake control device vibratory response, it is characterised in that detailed process is:
Step 1, with elastic threads free vertical hanging in angle on circuit board two, uses power hammer percussion mode exciting, gathers every block of electricity
The frequency response function curve of road plate and data；
The first step, the frequency response function curve of four angle excitings generations of acquisition controlling plate successively and data；Big in all quality of panel
On the components and parts of 3g, 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all adopted with dynamic strain
Collection instrument is connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts；The two of circuit board
Upper angle connects elastic threads, and by this panel vertical hanging, after circuit board stably stops swinging, laboratory technician the most firmly hammers percussion into shape
Four angle excitings of circuit board, a position firmly hammer taps once；Gather the frequency response function song that four angle excitings produce successively
Line and data；
Second step, the frequency response function curve of four angle excitings generations of acquisition and recording plate successively and data；Big in all quality of data board
On the components and parts of 3g, 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all adopted with dynamic strain
Collection instrument is connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts；The two of data board
Upper angle connects elastic threads, and by this data board vertical hanging, after plate to be recorded stably stops swinging, laboratory technician pounds with a hammer note successively
Four angle excitings of record plate, a position firmly hammer taps once；Gather the frequency response function curve that four angle excitings produce successively
With data；
Step 2, horizontally suspends at four angles of circuit board by elastic threads, uses hammer mode exciting, gathers the frequency of every piece of circuit board
Ring function curve and data；
Connecting four elastic threads at four angles of circuit board, circuit board level hung by elastic threads, carry out power hammer exciting, power is hammered into shape
Exciting, based on pulse testing principle and modal theory, signal test obtained input computer, tries to achieve the mode ginseng of circuit board
Number；Hammer mode exciting is used to gather frequency response function curve and the data of every piece of circuit board；One position firmly hammer taps once；
The vibrational state that the Free Modal simulated aircraft that corner horizontally suspends climbs, and test free module when mushing flight
State information；
Step 3, collecting circuit board frequency response function curve and data；
Use electric vibration table method of testing collecting circuit board frequency response function curve and data, specifically:
The first step, determines that antiskid brake controls the vibration value scope during device uses；
Determine vibration value test scope according to measured data, determine that the peak acceleration root-mean-square value of vibration-testing is
25Grms, minimum acceleration root-mean-square value is 5Grms；Absent variable vibration value does not list test scope in；
Second step, determines that the electric vibration table test collecting circuit board frequency response function curve test point with data is in antiskid brake control
Multiple test point is determined in vibration measurement scope 5Grms of device processed～25Grms；
3rd step, installs antiskid brake and controls device；
4th step, controls layout acceleration transducer on device in this antiskid brake；
5th step, when gathering each test point the most successively, antiskid brake controls the vibratory response of device；Specifically,
The vibration value that electric vibration table controls computer sets gradually the vibration value into this test point；At each vibration value
Upper vibration 10min, wherein front 5min observes the stable situation of electric vibration table, and rear 5min tests all acceleration transducers
Acceleration information, respectively obtains this antiskid brake and controls device in the frequency response function curve of each test point and data；
The data gathered are as the foundation revising the model of vibration using finite element software to set up；
This step is iterative process, and iteration tests proceeds to calculate modal data with actual measurement modal data phase ratio error less than 5%
Time terminate.
2. antiskid brake controls the method for testing of device vibratory response as claimed in claim 1, it is characterised in that
The frequency response function curve of described every piece of circuit board of collection with the detailed process of data is:
The first step, the frequency response function curve of four angle excitings generations of acquisition controlling plate successively and data；Big in all quality of panel
On the components and parts of 3g, 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all adopted with dynamic strain
Collection instrument is connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts；The two of circuit board
Upper angle connects elastic threads, and by this panel vertical hanging, after circuit board stably stops swinging, laboratory technician the most firmly hammers percussion into shape
Four angle excitings of circuit board, a position firmly hammer taps once；Gather the frequency response function song that four angle excitings produce successively
Line and data；
Second step, the frequency response function curve of four angle excitings generations of acquisition and recording plate successively and data；Big in all quality of data board
On the components and parts of 3g, 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all adopted with dynamic strain
Collection instrument is connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts；The two of data board
Upper angle connects elastic threads, and by this data board vertical hanging, after plate to be recorded stably stops swinging, laboratory technician pounds with a hammer note successively
Four angle excitings of record plate, a position firmly hammer taps once；Gather the frequency response function curve that four angle excitings produce successively
With data.
3. antiskid brake controls the method for testing of device vibratory response as claimed in claim 1, it is characterised in that described collection is every
The frequency response function curve of block circuit board with the detailed process of data is:
The first step, the frequency response function curve of four angle excitings generations of acquisition controlling plate successively and data；Big in all quality of panel
On the components and parts of 3g, 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all adopted with dynamic strain
Collection instrument is connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts；At panel
Four angles connect four elastic threads respectively, and the angle of each elastic threads and horizontal plane is 45 °, is horizontally suspended by this panel,
After making sheet to be controlled stably stops swinging, laboratory technician using power hammer to tap four angle excitings of panel successively, a position is used
Power hammer taps once；Gather frequency response function curve and data that four angle excitings produce successively；
Second step, the frequency response function curve of four angle excitings generations of acquisition and recording plate successively and data；Big in all quality of data board
On the components and parts of 3g, 1 acceleration transducer all pasted by each components and parts, and each acceleration transducer is all adopted with dynamic strain
Collection instrument is connected with dynamic signal analyzer, for gathering acceleration signal and the displacement signal of each components and parts；At data board
Four angles connect four elastic threads respectively, and the angle of each elastic threads and horizontal plane is 45 °, is horizontally suspended by this data board,
After plate to be recorded stably stops swinging, laboratory technician using power hammer to tap four angle excitings of data board successively, a position is used
Power hammer taps once；Gather frequency response function curve and data that four angle excitings produce successively.
4. antiskid brake controls the method for testing of device vibratory response as claimed in claim 1, it is characterised in that described anti-skidding
The each test point determined in vibration measurement scope 5Grms of braking control device～25Grms is respectively: first test point is
5Grms, second test point is 10Grms, and the 3rd test point is 15Grms, and the 4th test point is 20Grms, the 5th survey
Pilot is 25Grms.
5. antiskid brake controls the method for testing of device vibratory response as claimed in claim 1, it is characterised in that described anti-at this
On sliding braking control device, layout acceleration transducer is respectively: on described panel, each quality is more than on the components and parts of 3g
And paste 1 acceleration transducer respectively on the data board each quality components and parts more than 3g；The each acceleration pasted
Degree sensor is all connected with dynamic strain Acquisition Instrument and dynamic signal analyzer, for gathering the acceleration signal of each components and parts
And displacement signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585004.XA CN106289688B (en) | 2016-07-22 | 2016-07-22 | The test method of antiskid brake control device vibratory response |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585004.XA CN106289688B (en) | 2016-07-22 | 2016-07-22 | The test method of antiskid brake control device vibratory response |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106289688A true CN106289688A (en) | 2017-01-04 |
| CN106289688B CN106289688B (en) | 2018-12-11 |
Family
ID=57652376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610585004.XA Expired - Fee Related CN106289688B (en) | 2016-07-22 | 2016-07-22 | The test method of antiskid brake control device vibratory response |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106289688B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107291067A (en) * | 2016-11-23 | 2017-10-24 | 西安航空制动科技有限公司 | The method for eliminating antiskid brake control device vibration fault |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050066753A1 (en) * | 2003-09-30 | 2005-03-31 | Leger Gregory S. | Testing assembly for reducing noise emitted from a random vibration apparatus |
| CN1609578A (en) * | 2004-11-25 | 2005-04-27 | 上海交通大学 | Dynamic stiffness test system for large high-speed dynamic balancer oscillating frame |
| CN1955750A (en) * | 2005-10-24 | 2007-05-02 | 信息产业部电子第五研究所 | Modal checking method and system of vacuum electronic device |
| CN201945429U (en) * | 2011-01-14 | 2011-08-24 | 长沙理工大学 | Device for analyzing vibration characteristic of wind turbine blade |
| CN102507117A (en) * | 2011-10-13 | 2012-06-20 | 西安航空制动科技有限公司 | Method for determining vibration working stress limit of aircraft anti-skidding braking control box |
| CN102582718A (en) * | 2012-03-19 | 2012-07-18 | 潍柴动力股份有限公司 | Matching method for five-point suspension system of power assembly for engineering machinery |
| CN103868667A (en) * | 2012-12-12 | 2014-06-18 | 重庆长安汽车股份有限公司 | Automobile plate constraint mode test fixture and method |
-
2016
- 2016-07-22 CN CN201610585004.XA patent/CN106289688B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050066753A1 (en) * | 2003-09-30 | 2005-03-31 | Leger Gregory S. | Testing assembly for reducing noise emitted from a random vibration apparatus |
| CN1609578A (en) * | 2004-11-25 | 2005-04-27 | 上海交通大学 | Dynamic stiffness test system for large high-speed dynamic balancer oscillating frame |
| CN1955750A (en) * | 2005-10-24 | 2007-05-02 | 信息产业部电子第五研究所 | Modal checking method and system of vacuum electronic device |
| CN201945429U (en) * | 2011-01-14 | 2011-08-24 | 长沙理工大学 | Device for analyzing vibration characteristic of wind turbine blade |
| CN102507117A (en) * | 2011-10-13 | 2012-06-20 | 西安航空制动科技有限公司 | Method for determining vibration working stress limit of aircraft anti-skidding braking control box |
| CN102582718A (en) * | 2012-03-19 | 2012-07-18 | 潍柴动力股份有限公司 | Matching method for five-point suspension system of power assembly for engineering machinery |
| CN103868667A (en) * | 2012-12-12 | 2014-06-18 | 重庆长安汽车股份有限公司 | Automobile plate constraint mode test fixture and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107291067A (en) * | 2016-11-23 | 2017-10-24 | 西安航空制动科技有限公司 | The method for eliminating antiskid brake control device vibration fault |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106289688B (en) | 2018-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Larsen et al. | Modal analysis of wind turbine blades | |
| CN106441761A (en) | Engine blade fatigue testing device | |
| CN104198031A (en) | Torsional vibration signal detection method and device for engine crankshaft | |
| CN105043699A (en) | Vibration and impact test method of server chassis internal and external parameters and vibration and impact test device of server chassis internal and external parameters | |
| CN205228620U (en) | Probe -type sensing module of testing vibration | |
| CN106052743B (en) | A kind of sensor mass of assessing influences frequency response function the method for size | |
| CN103983412A (en) | Avionic device operating modal measuring method for vibration finite element model correction | |
| CN103234742B (en) | Fault diagnosis method for damping springs of vibrating screen | |
| CN103900826A (en) | Method for monitoring fatigue damage of automotive chassis structure in real time | |
| CN105115690A (en) | Test device and test method for testing multidirectional impedance matrix and rigidity of vibration isolator | |
| CN106441383B (en) | A kind of Active spurring formula filter press filter board health detecting system based on optical fiber grating sensing | |
| KR102032490B1 (en) | System for measuring resistance of model ship using active vibration control technology | |
| CN106840869A (en) | A kind of hole-edge crack diagnostic method for being based on fiber grating spectral image analysis under two kinds of cloth patch modes | |
| CN104296924A (en) | Inertial parameter test method of power assembly | |
| CN104154933B (en) | A kind of method based on vibrating fatigue theory analysis inertial measurement system failure mode | |
| CN206208528U (en) | Aero-engine vibration-testing apparatus | |
| CN106289688A (en) | Antiskid brake controls the method for testing of device vibratory response | |
| CN107144435A (en) | A kind of dynamic vibration absorber frequency test method | |
| CN104180823A (en) | Temperature compensation method and device | |
| CN105823549A (en) | Magnetic damping-based transmission line tower vibration sensor, monitoring system and monitoring method | |
| CN102901611B (en) | A kind of quick arrange distinguish method of satellite antenna structural damage based on modal test | |
| CN102914426A (en) | Device and method for testing vibration isolation performance of bellows | |
| CN109959709B (en) | Sealant damage identification method for boundary structure of full-hidden frame glass curtain wall | |
| CN106989880A (en) | Simulate ground seismic wave function lower member forces testing method and apparatus | |
| CN105651477B (en) | The anti-vibration performance analysis method flexibly supported in wind-driven generator |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20210722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |