CN109932151A - A kind of lower integral blade disk pitch diameter exercise test device and method of wave-passage excitation effect - Google Patents
A kind of lower integral blade disk pitch diameter exercise test device and method of wave-passage excitation effect Download PDFInfo
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- CN109932151A CN109932151A CN201910243417.3A CN201910243417A CN109932151A CN 109932151 A CN109932151 A CN 109932151A CN 201910243417 A CN201910243417 A CN 201910243417A CN 109932151 A CN109932151 A CN 109932151A
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Abstract
A kind of lower integral blade disk pitch diameter exercise test device of wave-passage excitation effect, including industrial personal computer, analog output boards, board cabinet, power amplifier, contactless magnetic field vibration excitor, modal forces hammer, acceleration transducer, data collection and analysis instrument and host computer, integral blade disk, by the cooperation of device, modal vibration test is carried out to integral blade disk；Travelling wave signal controls program self-developing in industrial personal computer in whole device, it is flexibly controllable, analog output boards and board cabinet efficiently integrate, it is easy to operate, it can also be used in the integral blade disk vibratory response characteristic that research is in resonance state by the vibratory response data that acceleration transducer acquires, using contactless magnetic field vibration excitor, compared with conventional flexible bar vibration excitor, the vibration excitor will not introduce additional mass and additional stiffness to system, improve the accuracy of test.
Description
Technical field
The present invention relates to vibration test technology field, specifically a kind of wave-passage excitation acts on lower integral blade disk pitch diameter movement and surveys
Try device and method.
Background technique
The lightweight of aero-engine bladed-disk assemblies and high speed, so that this new structure of integral blade disk has obtained extensively
Application, compared with traditional joggle leaf dish, the blade and wheel disc of integral blade disk are made into one, disk by advanced manufacturing process
Body structure is simple, weight, and performance is more superior.
Stress condition is extremely complex when integral blade disk is in rotary work state, therefore usually will be true suffered by integral blade disk
Excitation is known as wave-passage excitation, and wave-passage excitation is suffered when being normally defined rotor rotation by pressure disturbance with equal intervals
Excitation, wave-passage excitation in laboratory can by each blade order of integral blade disk apply equiphase difference sinusoidal excitation come mould
It is quasi-, while obtaining the Mode Shape of integral blade disk and the pitch diameter characteristics of motion under wave-passage excitation and the dynamics of such structural member is set
Meter and vibration suppression have important meaning.
Currently, the method for identification integral blade disk Mode Shape mainly passes through the method that experimental modal analysis theory provides,
Mode Shape is recognized by testing the frequency response function of each response point, wherein being using power hammer or electromagnetic exciter exciting test
Most common method, however, since the usual intrinsic frequency interval of integral blade disk is intensive, coupling is serious between mode, thus tradition
Test Mode Shape method, measuring accuracy is not high, as a result unreliable, meanwhile, operation skill of the mould measurement to experimenter
There can be higher requirement, in addition, mould measurement experiment can only merely provide Mode Shape figure, not can reflect pitch diameter
Changing rule.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of wave-passage excitations to act on lower integral blade disk pitch diameter
Exercise test device and method can be improved Mode Shape and survey identification precision and efficiency, technical solution:
A kind of lower integral blade disk pitch diameter exercise test device of wave-passage excitation effect, including industrial personal computer, analog output boards, plate
Card machine case, power amplifier, contactless magnetic field vibration excitor, modal forces hammer, acceleration transducer, data collection and analysis instrument and on
Position machine, integral blade disk；
The Ethernet input end of the Ethernet output end connecting plate card machine case of the industrial personal computer, the analog output boards are set
In in the slot of board cabinet, the input terminal of the output end connection power amplifier of the analog output boards, the power is put
The output end of big device connects the input terminal of contactless magnetic field vibration excitor, and the contactless magnetic field vibration excitor is fixedly installed in whole
Below body leaf dish, the acceleration transducer is pasted on the blade upper surface of integral blade disk, the output of the acceleration transducer
The input terminal of end connection data acquisition and analysis instrument, the Ethernet output end of the data collection and analysis instrument connects host computer, described
Modal forces hammer is placed in above integral blade disk, and the impact end of the modal forces hammer contacts integral blade disk upper surface, the modal forces hammer
Automatically controlled input terminal be electrically connected data collection and analysis instrument.
LabVIEW program editor built in the industrial personal computer, the industrial personal computer self-developing program are sent out as travelling wave signal
Raw device, generates and controls wave-passage excitation signal.
The analog output boards and board cabinet switch to analog signal output to the wave-passage excitation signal that industrial personal computer exports,
The analog signal transmission of the board cabinet output goes out to power amplifier.
The power amplifier amplifies the analog signal of input for high voltage pumping signal, the high voltage excitation
Signal loading is to contactless magnetic field vibration excitor.
The contactless magnetic field vibration excitor generates alternating magnetic field, the alternating magnetic field excitation according to high voltage pumping signal
Integral blade disk brings it about steady-state vibration.
The modal forces hammer is placed in above integral blade disk, and the modal forces hammer hammering integral blade disk carries out mould measurement.
The acceleration transducer is used to acquire the vibration response signal of integral blade disk.
The vibration that the data collection and analysis instrument obtains integral blade disk for recording and analyzing acceleration transducer in real time is rung
Induction signal.
The host computer recognizes the Mode Shape of integral blade disk for handling the vibration response signal of integral blade disk
With the pitch diameter characteristics of motion.
Lower integral blade disk pitch diameter exercise test device is acted on using a kind of wave-passage excitation above-mentioned to save integral blade disk
The method of diameter exercise test, includes the following steps:
Step 1: industrial personal computer writes signal generator program, allows to generate and control multichannel wave-passage excitation signal；
Step 2: regulation power amplifier keeps each channel gain identical, while by contactless magnetic field vibration excitor by dedicated
Fixture is fixed on integral blade disk blade tip measuring point following distance；
Step 3: each channel accumulation signal parameter is set in the signal generator program that industrial personal computer is write；
Step 4: mould measurement being carried out to integral blade disk, obtains each rank intrinsic frequency of integral blade disk, then host computer is to whole
Body leaf dish carries out finite element modal analysis, finite element model is corrected according to mode test result, until mode test result and mould
State analyzes result and coincide；
Step 5: sweep check range being determined according to each rank natural frequency value of integral blade disk, frequency sweep is carried out to integral blade disk and is swashed
Test is encouraged, each rank resonant frequency of integral blade disk is obtained:
Step 5.1: each channel signal parameter and swept frequency excitation parameter are set in industrial personal computer signal generator；
Step 5.2: startup power amplifier and contactless magnetic field vibration excitor carry out swept frequency excitation test to integral blade disk；
Step 5.3: acceleration transducer acquires the vibration response signal of integral blade disk in real time and exports to data acquisition point
Analyzer；
Step 5.4: data collection and analysis instrument records in real time and handles the vibration response signal of integral blade disk, and exports supreme
Position machine；
Step 5.5: host computer obtains each rank resonant frequency of integral blade disk according to the vibration response signal of integral blade disk；
Step 6: each rank resonant frequency of integral blade disk obtained according to step 5 carries out integral blade disk to determine the excitation of frequency order
Test:
Step 6.1: each channel accumulation signal parameter is set in industrial personal computer signal generator, it is each according to excitation order setting
Phase difference between accumulation signal；
Step 6.2: startup power amplifier and contactless magnetic field vibration excitor motivate the fixed frequency of integral blade disk, are at
Steady-state vibration state；
Step 6.3: blade being numbered, tests since two measuring points of No. 1 No. 2 blade tips, is numbered according to blade
12 tests are successively carried out, complete the vibratory response test of one week measuring point, while acceleration transducer obtains integral blade disk one week
The vibration response signal of measuring point is simultaneously uploaded to host computer by data collection and analysis instrument；
Step 6.4: moving radially inwardly two acceleration transducers, picked up to complete more all measuring point vibration response signals
It takes, while acceleration transducer obtains the vibration response signal of the more all measuring points of integral blade disk and real-time by data collection and analysis instrument
It is transmitted to host computer；
Step 6.5: changing excitation order, repeat step 6.1~step 6.4, complete integral blade disk under multiple wave-passage excitations
More week measuring point vibration response signals pick up；
Step 7: according to the vibratory response data of measuring point all more than integral blade disk surface, host computer draws out integral blade disk and is expert at
Mode Shape under wave excitation effect, and recognize the pitch diameter characteristics of motion；
Step 7.1: host computer carries out time domain response signal drop to the vibratory response data of measuring point all more than integral blade disk surface
It makes an uproar processing and windowing process；
Step 7.2: treated that data extract processing to time domain response signal de-noising for host computer；
Step 7.3: drawing out whole according to the dimensional parameters of integral blade disk, measuring point quantity and point layout situation, host computer
The wire-frame model of body leaf dish measuring point；
Step 7.4: each measuring point vibratory response data are loaded into corresponding wire-frame model measuring point coordinate by host computer,
The Mode Shape for drawing out integral blade disk passes through the comparison Mode Shape pitch diameter variation identification pitch diameter characteristics of motion.
Compared with prior art, the beneficial effects of the present invention are:
(1) travelling wave signal controls program self-developing in industrial personal computer, flexibly controllable, and analog output boards and board cabinet are high
Effect is integrated, easy to operate；
(2) it can also be used in the whole leaf that research is in resonance state by the vibratory response data that acceleration transducer acquires
Disc vibration response characteristic；
(3) contactless magnetic field vibration excitor is used, compared with conventional flexible bar vibration excitor, which will not draw to system
Enter additional mass and additional stiffness, improves the accuracy of test.
Detailed description of the invention
Fig. 1 is that the electric signal under the wave-passage excitation effect of one embodiment of the present invention connects block diagram；
Fig. 2 is the dress of the integral blade disk pitch diameter exercise test device under the wave-passage excitation effect of one embodiment of the present invention
Composition diagram is set to be intended to；
Fig. 3 is the integral blade disk pitch diameter exercise test flow chart under the wave-passage excitation effect of one embodiment of the present invention；
Fig. 4 is the integral blade disk obtained by finite element analysis under the wave-passage excitation effect of one embodiment of the present invention
Mode Shape figure；
Fig. 5 is the signal generator front panel under the wave-passage excitation effect of one embodiment of the present invention；
Fig. 6 is the signal generator first part workflow frame under the wave-passage excitation effect of one embodiment of the present invention
Figure；
Fig. 7 is the signal generator second part engineering process frame under the wave-passage excitation effect of one embodiment of the present invention
Figure；
Fig. 8 is the signal generator Part III engineering process frame under the wave-passage excitation effect of one embodiment of the present invention
Figure；
Fig. 9 is the three-dimensional using 192Hz as the fixed frequency excitation integral blade disk of excited frequency zeroth order time of one embodiment of the present invention
Waterfall plot；
Figure 10 is one embodiment of the present invention using 192Hz as the fixed frequency excitation integral blade disk vibration of excited frequency zeroth order time
Time-domain signal figure；
Figure 11 is one embodiment of the present invention using 192Hz as the fixed frequency excitation integral blade disk test of excited frequency zeroth order time
The Mode Shape figure of acquisition.
In figure: 1, host computer, 2, data collection and analysis instrument, 3, industrial personal computer, 4, integral blade disk, 5, power amplifier, 6, mould
Quasi- output board card, 7, board cabinet, 8, contactless magnetic field vibration excitor, 9, acceleration transducer, 10, modal forces hammer.
Specific embodiment
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
For the present embodiment using integral blade disk as objective for implementation, dimensional parameters are as shown in table 1:
Table 1Integral blade disk sizeParameter (unit: m)
If Fig. 1 to Figure 11 shows, the present invention provides a kind of wave-passage excitations to act on lower integral blade disk pitch diameter exercise test device,
Including industrial personal computer 3, analog output boards 6, board cabinet 7, power amplifier 5, contactless magnetic field vibration excitor 8, modal forces hammer
10, acceleration transducer 9, data collection and analysis instrument 2 and host computer 1, wherein industrial personal computer 3 uses high-performance laptop, mould
Quasi- output board card 6 uses NI-9263 output board card, is a kind of synchronized update analog output module, and board cabinet 7 uses NI
CDAQ-9189 cabinet is the bus-powered Ethernet cabinet of Miniature Sensor design of measuring system, in use directly
Board insertion cabinet is constituted into analog output module, power amplifier 5 uses model YE5876 power amplifier, passes through
BNC input/output interface is connect with contactless magnetic field vibration excitor 8 and analog output boards 6, maximum power 800W, totally 12 tunnel
I/O channel, it is possible to provide stable signal gain, contactless magnetic field vibration excitor 8 are non-contact using model YE15401
Formula magnetic field vibration excitor, peak-peak exciting force 20N, carries out contactless exciting to integral blade disk 4 in the form of applying magnetic field force,
Modal forces hammer 10 using model PCB 086D05 impact forces hammer into shape, test scope be 1Hz~22kHz, sensitivity 0.23mV/N,
For carrying out mould measurement to integral blade disk 4 using hammering method, acceleration transducer 9 is passed using 4517 acceleration of model B&K
Sensor is connect by the cable with UNF with data collection and analysis instrument 2, sensitivity 1.02mV/ms-2, pass through gluing
Agent is mounted on test specimen, and test frequency range is 1Hz~20kHz, only 0.65 gram of quality, is hardly caused to test result
Influence, data collection and analysis instrument 2 using model LMS SCADAS Mobile Front-End data collection and analysis instrument
2, which is connect by ethernet line with host computer 1, and totally 16 data acquisition channels, can carry out 24
Also the ICP modulation input pickup of standard and analog voltage input pickup, host computer 1 can be used to use high-performance for A/D conversion
Laptop, built-in finite element analysis software and data processing software；
The Ethernet input end of the Ethernet output end connecting plate card machine case 7 of the industrial personal computer 3, by the wave-passage excitation of generation
Signal is transmitted, and the analog output boards 6 are placed in the slot of board cabinet 7, and peace is fixed to analog output boards 6
Dress, while simulated processing, the analog output boards 6 are carried out by the wave-passage excitation signal of 6 pairs of analog output boards inputs
Output end connection power amplifier 5 input terminal, simulated signal is exported into power amplifier 5, the function
The output end of rate amplifier 5 connects the input terminal of contactless magnetic field vibration excitor 8, the analog signal of 5 pairs of power amplifier inputs
It amplifies, guarantees that contactless magnetic field vibration excitor 8 generates enough alternating magnetic fields, the contactless magnetic field vibration excitor 8 is solid
It is pasted loaded on 4 lower section of integral blade disk, the blade tip of contactless close integral blade disk 4, the acceleration transducer 9 Dingan County
In the blade upper surface of integral blade disk 4, the acceleration in the vibration place of production of blade is detected, and the signal transduction that will test is extremely
Data collection and analysis instrument 2, the input terminal of the output end connection data acquisition and analysis instrument 2 of the acceleration transducer 9, to input
Signal is acquired and analyzes, and the Ethernet output end of the data collection and analysis instrument 2 connects host computer 1, by the number after analysis
According to carrying out integration processing, the modal forces hammer 10 is placed in 4 top of integral blade disk, and the impact end contact of the modal forces hammer 10 is whole
The automatically controlled input terminal of 4 upper surface of body leaf dish, the modal forces hammer 10 is electrically connected data collection and analysis instrument 2, carries out mould measurement.
LabVIEW program editor built in the industrial personal computer 3 is the basis for writing travelling wave signal generator, the work
3 self-developing program of control machine is used as travelling wave signal generator, generates and controls wave-passage excitation signal.
It is defeated that the analog output boards 6 with the wave-passage excitation signal that board cabinet 7 exports industrial personal computer 3 switch to analog signal
Out, the analog signal transmission that the board cabinet 7 exports goes out to power amplifier 5.
The power amplifier 5 amplifies the analog signal of input for high voltage pumping signal, and the high voltage swashs
Signal loading is encouraged to contactless magnetic field vibration excitor 8.
The contactless magnetic field vibration excitor 8 generates alternating magnetic field according to high voltage pumping signal, and the alternating magnetic field swashs
It encourages integral blade disk 4 and brings it about steady-state vibration.
The modal forces hammer 10 is placed in 4 top of integral blade disk, and the 10 hammering integral blade disk 4 of modal forces hammer carries out mode survey
Examination.
The acceleration transducer 9 is used to acquire the vibration response signal of integral blade disk 4.
The vibration that the data collection and analysis instrument 2 obtains integral blade disk 4 for recording and analyzing in real time acceleration transducer 9
Response signal.
The host computer 1 recognizes the mode of integral blade disk 4 for handling the vibration response signal of integral blade disk 4
The vibration shape and the pitch diameter characteristics of motion.
Lower integral blade disk pitch diameter exercise test device is acted on using a kind of wave-passage excitation above-mentioned to save integral blade disk 4
The method of diameter exercise test, includes the following steps:
Step 1: industrial personal computer 3 writes signal generator program, allows to generate and control multichannel wave-passage excitation signal；
Step 2: regulation power amplifier 5 keeps each channel gain identical, while contactless magnetic field vibration excitor 8 being passed through specially
4 blade tip measuring point following distance of integral blade disk is fixed on fixture；
Step 3: each channel accumulation signal parameter is set in the signal generator program that industrial personal computer 3 is write；
Step 4: mould measurement being carried out to integral blade disk 4, obtains each rank intrinsic frequency of integral blade disk 4, then host computer 1 is right
Integral blade disk 4 carry out finite element modal analysis, according to mode test result correct finite element model, until mode test result and
Modal analysis result is coincide；
Step 5: sweep check range being determined according to each rank natural frequency value of integral blade disk 4, frequency sweep is carried out to integral blade disk 4
Exciting test obtains each rank resonant frequency of integral blade disk 4:
Step 5.1: each channel signal parameter and swept frequency excitation parameter are set in 3 signal generator of industrial personal computer；
Step 5.2: startup power amplifier 5 and contactless magnetic field vibration excitor 8 carry out swept frequency excitation survey to integral blade disk 4
Examination；
Step 5.3: acceleration transducer 9 acquires the vibration response signal of integral blade disk 4 in real time and exports to data and acquires
Analyzer 2；
Step 5.4: data collection and analysis instrument 2 records and handles in real time the vibration response signal of integral blade disk 4, and exports extremely
Host computer 1；
Step 5.5: host computer 1 obtains each rank resonant frequency of integral blade disk 4 according to the vibration response signal of integral blade disk 4；
Step 6: it is sharp determine frequency order to integral blade disk 4 for each rank resonant frequency of integral blade disk 4 obtained according to step 5
Encourage test:
Step 6.1: each channel accumulation signal parameter is set in 3 signal generator of industrial personal computer, according to excitation order setting
Phase difference between each accumulation signal；
Step 6.2: startup power amplifier 5 and contactless magnetic field vibration excitor 8 motivate the fixed frequency of integral blade disk 4, make it
In steady-state vibration state；
Step 6.3: blade being numbered, tests since two measuring points of No. 1 No. 2 blade tips, is numbered according to blade
12 tests are successively carried out, complete the vibratory response test of one week measuring point, while acceleration transducer 9 obtains integral blade disk 4 one
The vibration response signal of all measuring points is simultaneously uploaded to host computer 1 by data collection and analysis instrument 2；
Step 6.4: moving radially inwardly two acceleration transducers 9, picked up to complete more all measuring point vibration response signals
It takes, while acceleration transducer 9 obtains the vibration response signal of all measuring points of integral blade disk more than 4 and passes through data collection and analysis instrument 2
It is transmitted to host computer 1 in real time；
Step 6.5: changing excitation order, repeat step 6.1~step 6.4, complete integral blade disk 4 under multiple wave-passage excitations
More week measuring point vibration response signals pick up；
Step 7: according to the vibratory response data of measuring point all more than 4 surface of integral blade disk, host computer 1 draws out integral blade disk 4
Mode Shape under wave-passage excitation effect, and recognize the pitch diameter characteristics of motion；
Step 7.1: host computer 1 carries out time domain response signal to the vibratory response data of measuring point all more than 4 surface of integral blade disk
Noise reduction process and windowing process；
Step 7.2: treated that data extract processing to time domain response signal de-noising for host computer 1；
Step 7.3: according to the dimensional parameters of integral blade disk 4, measuring point quantity and point layout situation, host computer 1 is drawn out
The wire-frame model of 4 measuring point of integral blade disk；
Step 7.4: each measuring point vibratory response data are loaded into corresponding wire-frame model measuring point coordinate by host computer 1
On, the Mode Shape of integral blade disk 4 is drawn out, the comparison Mode Shape pitch diameter variation identification pitch diameter characteristics of motion is passed through.
The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, although referring to above-described embodiment pair
The present invention is described in detail, and the those of ordinary skill in field is it is understood that still can be to specific embodiment party of the invention
Formula is modified or replaced equivalently, and without departing from any modification of spirit and scope of the invention or equivalent replacement, it should all
Cover in present claims range.
Claims (10)
1. a kind of wave-passage excitation acts on lower integral blade disk pitch diameter exercise test device, including industrial personal computer, analog output boards, board
Cabinet, power amplifier, contactless magnetic field vibration excitor, modal forces hammer, acceleration transducer, data collection and analysis instrument and upper
Machine, integral blade disk；
The Ethernet input end of the Ethernet output end connecting plate card machine case of the industrial personal computer, the analog output boards are placed in plate
In the slot of card machine case, the input terminal of the output end connection power amplifier of the analog output boards, the power amplifier
Output end connect the input terminal of contactless magnetic field vibration excitor, the contactless magnetic field vibration excitor is fixedly installed in whole leaf
Below disk, the acceleration transducer is pasted on the blade upper surface of integral blade disk, and the output end of the acceleration transducer connects
The input terminal of data collection and analysis instrument is connect, the Ethernet output end of the data collection and analysis instrument connects host computer, the mode
Power hammer is placed in above integral blade disk inner ring, and the impact end of the modal forces hammer contacts integral blade disk upper surface, the modal forces hammer
Automatically controlled input terminal be electrically connected data collection and analysis instrument.
2. a kind of wave-passage excitation according to claim 1 acts on lower integral blade disk pitch diameter exercise test device, feature exists
In, LabVIEW program editor built in the industrial personal computer, the industrial personal computer self-developing program is used as travelling wave signal generator,
It generates and controls wave-passage excitation signal.
3. a kind of wave-passage excitation according to claim 1 acts on lower integral blade disk pitch diameter exercise test device, feature exists
In the analog output boards and board cabinet switch to analog signal output to the wave-passage excitation signal that industrial personal computer exports, described
The analog signal transmission of board cabinet output goes out to power amplifier.
4. a kind of wave-passage excitation according to claim 1 acts on lower integral blade disk pitch diameter exercise test device, feature exists
In the power amplifier amplifies the analog signal of input for high voltage pumping signal, the high voltage pumping signal
It is loaded into contactless magnetic field vibration excitor.
5. a kind of wave-passage excitation according to claim 1 acts on lower integral blade disk pitch diameter exercise test device, feature exists
In the contactless magnetic field vibration excitor generates alternating magnetic field according to high voltage pumping signal, and the oscillating magnetic field excitation is whole
Leaf dish brings it about steady-state vibration.
6. a kind of wave-passage excitation according to claim 1 acts on lower integral blade disk pitch diameter exercise test device, feature exists
In the modal forces hammer is placed in above integral blade disk, and the modal forces hammer hammering integral blade disk carries out mould measurement.
7. a kind of wave-passage excitation according to claim 1 acts on lower integral blade disk pitch diameter exercise test device, feature exists
In the acceleration transducer is used to acquire the vibration response signal of integral blade disk.
8. a kind of wave-passage excitation according to claim 1 acts on lower integral blade disk pitch diameter exercise test device, feature exists
In the data collection and analysis instrument obtains the vibratory response letter of integral blade disk for recording and analyzing acceleration transducer in real time
Number.
9. a kind of wave-passage excitation according to claim 1 acts on lower integral blade disk pitch diameter exercise test device, feature exists
In the host computer recognizes the Mode Shape and section of integral blade disk for handling the vibration response signal of integral blade disk
The diameter characteristics of motion.
10. a kind of wave-passage excitation described in claim 1 act on lower integral blade disk pitch diameter exercise test device to integral blade disk into
The method of row pitch diameter exercise test, includes the following steps:
Step 1: industrial personal computer writes signal generator program, allows to generate and control multichannel wave-passage excitation signal；
Step 2: regulation power amplifier keeps each channel gain identical, while contactless magnetic field vibration excitor is passed through special fixture
It is fixed on integral blade disk blade tip measuring point following distance；
Step 3: each channel accumulation signal parameter is set in the signal generator program that industrial personal computer is write；
Step 4: mould measurement being carried out to integral blade disk, obtains each rank intrinsic frequency of integral blade disk, then host computer is to whole leaf
Disk carries out finite element modal analysis, corrects finite element model according to mode test result, until mode test result and mode point
Result is analysed to coincide；
Step 5: sweep check range being determined according to each rank natural frequency value of integral blade disk, swept frequency excitation survey is carried out to integral blade disk
Examination, obtains each rank resonant frequency of integral blade disk:
Step 5.1: each channel signal parameter and swept frequency excitation parameter are set in industrial personal computer signal generator；
Step 5.2: startup power amplifier and contactless magnetic field vibration excitor carry out swept frequency excitation test to integral blade disk；
Step 5.3: acceleration transducer acquires the vibration response signal of integral blade disk in real time and exports to data collection and analysis instrument；
Step 5.4: data collection and analysis instrument records in real time and handles the vibration response signal of integral blade disk, and exports to upper
Machine；
Step 5.5: host computer obtains each rank resonant frequency of integral blade disk according to the vibration response signal of integral blade disk；
Step 6: each rank resonant frequency of integral blade disk obtained according to step 5 carries out integral blade disk to determine frequency order exciting test:
Step 6.1: each channel accumulation signal parameter being set in industrial personal computer signal generator, each exciting is arranged according to excitation order
Phase difference between signal；
Step 6.2: startup power amplifier and contactless magnetic field vibration excitor motivate the fixed frequency of integral blade disk, are at stable state
Vibrational state；
Step 6.3: blade being numbered, is tested since two measuring points of No. 1 No. 2 blade tips, successively according to blade number
12 tests are carried out, complete the vibratory response test of one week measuring point, while acceleration transducer obtains one week measuring point of integral blade disk
Vibration response signal and host computer is uploaded to by data collection and analysis instrument；
Step 6.4: moving radially inwardly two acceleration transducers, picked up to complete more all measuring point vibration response signals, together
Brief acceleration sensor obtains the vibration response signal of the more all measuring points of integral blade disk and is transmitted in real time by data collection and analysis instrument
Host computer；
Step 6.5: changing excitation order, repeat step 6.1~step 6.4, how all complete integral blade disk under multiple wave-passage excitations
Measuring point vibration response signal picks up；
Step 7: according to the vibratory response data of measuring point all more than integral blade disk surface, host computer is drawn out integral blade disk and is swashed in traveling wave
Mode Shape under the effect of encouraging, and recognize the pitch diameter characteristics of motion；
Step 7.1: host computer carries out at time domain response signal de-noising the vibratory response data of measuring point all more than integral blade disk surface
Reason and windowing process；
Step 7.2: treated that data extract processing to time domain response signal de-noising for host computer；
Step 7.3: according to the dimensional parameters of integral blade disk, measuring point quantity and point layout situation, host computer draws out whole leaf
The wire-frame model of disk measuring point；
Step 7.4: each measuring point vibratory response data are loaded into corresponding wire-frame model measuring point coordinate by host computer, are drawn
The Mode Shape of integral blade disk out passes through the comparison Mode Shape pitch diameter variation identification pitch diameter characteristics of motion.
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| CN112378998A (en) * | 2020-10-26 | 2021-02-19 | 北京中科泛华测控技术有限公司 | Engine blade natural frequency testing method |
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| CN114295465A (en) * | 2021-11-22 | 2022-04-08 | 北京机电工程研究所 | Modal test preload applying device, modal test system and preload applying method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU988359A1 (en) * | 1981-07-13 | 1983-01-15 | Куйбышевский Ордена Трудового Красного Знамени Авиационный Институт Им.Акад.С.П.Королева | Oscillation exciter |
| CN101561342A (en) * | 2009-05-15 | 2009-10-21 | 北京工业大学 | System and method for measuring time-sharing quick steady-state sine sweep excitation frequency response function |
| CN103528667A (en) * | 2013-10-23 | 2014-01-22 | 东北大学 | Laser scanning based cylindrical shell modal shape testing device and method |
| CN203479487U (en) * | 2013-07-31 | 2014-03-12 | 沈阳工程学院 | Experiment device for testing vibration modes of steam turbine simulated impeller |
| CN104458176A (en) * | 2014-12-15 | 2015-03-25 | 中国飞机强度研究所 | Noise and vibration combined test device for blade of rotor |
| CN105808829A (en) * | 2016-03-02 | 2016-07-27 | 西安交通大学 | CPU+GPU heterogeneous parallel computing based natural frequency characteristic analysis method for turbomachinery blade |
| CN106596011A (en) * | 2016-11-21 | 2017-04-26 | 中国船舶重工集团公司第七0五研究所 | Small impeller mode testing method based on exciting point optimization and vibration measurement with laser |
| CN107063612A (en) * | 2017-04-18 | 2017-08-18 | 东北大学 | A kind of blisk kinematic similarity is test bed |
| CN107991080A (en) * | 2017-12-05 | 2018-05-04 | 中国人民解放军总参谋部第六十研究所 | A kind of high frequency Modal Analysis on Blade method based on non-contact vibration measuring and simulation calculation |
| CN108760020A (en) * | 2018-06-01 | 2018-11-06 | 东北大学 | Fiber composite thin plate Non-Linear Vibration characterization test method based on vibration measurement with laser |
| CN108918064A (en) * | 2018-06-19 | 2018-11-30 | 东北大学 | A kind of tenon connects blade inherent characteristic non-contact testing experimental provision and test method |
| CN109359392A (en) * | 2018-10-19 | 2019-02-19 | 北京化工大学 | A kind of turbo blade Stress Calculation method using non-cpntact measurement |
-
2019
- 2019-03-28 CN CN201910243417.3A patent/CN109932151B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU988359A1 (en) * | 1981-07-13 | 1983-01-15 | Куйбышевский Ордена Трудового Красного Знамени Авиационный Институт Им.Акад.С.П.Королева | Oscillation exciter |
| CN101561342A (en) * | 2009-05-15 | 2009-10-21 | 北京工业大学 | System and method for measuring time-sharing quick steady-state sine sweep excitation frequency response function |
| CN203479487U (en) * | 2013-07-31 | 2014-03-12 | 沈阳工程学院 | Experiment device for testing vibration modes of steam turbine simulated impeller |
| CN103528667A (en) * | 2013-10-23 | 2014-01-22 | 东北大学 | Laser scanning based cylindrical shell modal shape testing device and method |
| CN104458176A (en) * | 2014-12-15 | 2015-03-25 | 中国飞机强度研究所 | Noise and vibration combined test device for blade of rotor |
| CN105808829A (en) * | 2016-03-02 | 2016-07-27 | 西安交通大学 | CPU+GPU heterogeneous parallel computing based natural frequency characteristic analysis method for turbomachinery blade |
| CN106596011A (en) * | 2016-11-21 | 2017-04-26 | 中国船舶重工集团公司第七0五研究所 | Small impeller mode testing method based on exciting point optimization and vibration measurement with laser |
| CN107063612A (en) * | 2017-04-18 | 2017-08-18 | 东北大学 | A kind of blisk kinematic similarity is test bed |
| CN107991080A (en) * | 2017-12-05 | 2018-05-04 | 中国人民解放军总参谋部第六十研究所 | A kind of high frequency Modal Analysis on Blade method based on non-contact vibration measuring and simulation calculation |
| CN108760020A (en) * | 2018-06-01 | 2018-11-06 | 东北大学 | Fiber composite thin plate Non-Linear Vibration characterization test method based on vibration measurement with laser |
| CN108918064A (en) * | 2018-06-19 | 2018-11-30 | 东北大学 | A kind of tenon connects blade inherent characteristic non-contact testing experimental provision and test method |
| CN109359392A (en) * | 2018-10-19 | 2019-02-19 | 北京化工大学 | A kind of turbo blade Stress Calculation method using non-cpntact measurement |
Non-Patent Citations (3)
| Title |
|---|
| KEITH W.JONES、CHARLES J. CROSS: "Traveling Wave Excitation System for Bladed Disks", 《JOURNAL OF PROPULSION AND POWER》 * |
| TERESA BERRUTI: "A Test Rig for Noncontact Traveling Wave Excitation of a Bladed Disk With Underplatform Dampers", 《JOURNAL OF ENGINEERING FOR GAS TURBINE AND POWER》 * |
| 陈熠: "失谐叶盘振动实验虚拟行波信号发生器的设计", 《机械科学与技术》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375971A (en) * | 2019-07-11 | 2019-10-25 | 北京理工大学 | The accelerated life test device and method of radial flow turbine wheel and compressor impeller |
| CN110375971B (en) * | 2019-07-11 | 2020-08-14 | 北京理工大学 | Accelerated life test device and method for radial flow type turbine impeller and gas compressor impeller |
| CN110672292A (en) * | 2019-10-11 | 2020-01-10 | 西安交通大学 | Rotary damping blade vibration magnetic excitation vibration modeling test device |
| CN111504585A (en) * | 2020-05-06 | 2020-08-07 | 大连理工大学 | Blisk multi-load vibration experiment device and method |
| CN112378998A (en) * | 2020-10-26 | 2021-02-19 | 北京中科泛华测控技术有限公司 | Engine blade natural frequency testing method |
| CN112415899A (en) * | 2021-01-25 | 2021-02-26 | 南京航空航天大学 | Real-time active vibration reduction system and vibration reduction method based on compact RIO |
| CN113432818A (en) * | 2021-06-25 | 2021-09-24 | 上海交通大学 | Programmable force-excited blade vibration testing device |
| CN113865814A (en) * | 2021-09-08 | 2021-12-31 | 北京强度环境研究所 | Modal test device and method under high-speed rotation of metal turntable |
| CN113865814B (en) * | 2021-09-08 | 2023-12-01 | 北京强度环境研究所 | Modal test device and modal test method for metal turntable under high-speed rotation |
| CN114295465A (en) * | 2021-11-22 | 2022-04-08 | 北京机电工程研究所 | Modal test preload applying device, modal test system and preload applying method |
| CN114295465B (en) * | 2021-11-22 | 2024-06-07 | 北京机电工程研究所 | Modal test preload applying device, modal test system and preload applying method |
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