CN109182728A - A kind of green intelligent oscillating aging system and method - Google Patents
A kind of green intelligent oscillating aging system and method Download PDFInfo
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- CN109182728A CN109182728A CN201811050251.5A CN201811050251A CN109182728A CN 109182728 A CN109182728 A CN 109182728A CN 201811050251 A CN201811050251 A CN 201811050251A CN 109182728 A CN109182728 A CN 109182728A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
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Abstract
Green intelligent oscillating aging system, including master system, signal generator, driver, vibration excitor, strain transducer, dynamic strain indicator, acceleration transducer, charge amplifier, oscillograph, data collecting card, support device；Vibration excitor is fixed on component surface, and component is supported using flexible support device；Master system includes that strain waveform obtains module, strains peak extraction module, dynamic stress conversion module, component elasticity modulus setup module, voltage waveform acquisition module and voltage peak extraction module.Green intelligent oscillation time-effect method includes numerical simulation analysis；Determine effective vibration shape and reference frequency；Component is fixedly connected with vibration excitor, component is flexibly supported；Obtain excited vibration stress transmission method；Determine excited frequency；Determine exciting dynamic stress；Determine the exciting time.The advantages of present invention has the effect of the intelligent level that can be improved oscillating aging system and obtains ideal Relieving Residual Stress in Libration.
Description
Technical field
The present invention relates to vibration aging technology field, a kind of green intelligent oscillating aging system and method are refered in particular to.
Technical background
How to eliminate the residual stress during component processing and manufacturing and be one in machine building industry field and important grinds
Study carefully project.Traditional method for removing residual stress is mainly heat aging technology, however heat aging technology application when it is existing not
Foot mainly includes that energy consumption is high, aging time is long, Equipment for Heating Processing is expensive, be not easy to execute-in-place, be easy to cause environment dirty
Dye.Vibration aging technology have high treating effect, short processing time, environmental pollution is small, low energy consumption, is easy to the spies such as execute-in-place
Point belongs to the ageing treatment technology of efficient energy-saving green environment protection；Has substitution tradition in 21st century vibration aging technology
The possibility of heat aging technology.Therefore, it conducts a research vibration aging technology with important theory significance and engineering application value.
However oscillating aging system intelligent level is low at present, reduces the efficiency of vibration stress relief treatment.In addition, applying currently on the market
Oscillating aging system the excited frequency of oscillating aging is determined using traditional frequency sweep method, consider that the remnants of component are answered
Power distribution, so determining oscillating aging excited frequency, are unfavorable for obtaining ideal Relieving Residual Stress in Libration
Effect.Determination for exciting dynamic stress is mainly to be unfolded according to Macro Mechanism, i.e. the vibration excitor dynamic stress that generates
The sum of amplitude and residual stress should be greater than the yield strength of timeliness component, and the amplitude of dynamic stress should be less than the tired pole of component
Limit.When carrying out oscillating aging experiment, the acceleration vibration level for generalling use component is answered to assess the excited vibration acted on component
Power.Although acceleration vibration level can be used to characterize the size for acting on the vibrational energy on component, acceleration can not be passed through
Vibration level immediately arrives at the exciting dynamic stress acted on component.Determination for the exciting time is mainly to press the weight of timeliness component
Or by the vibratory response during timeliness component vibration stress relief treatment, after flattening, rising after accelerating curve rises
In sustained vibration 3~5min of ageing treatment, the time of general accumulative vibration stress relief treatment after phenomena such as decline is then leveled off
40min is not to be exceeded.
In conclusion when carrying out vibration stress relief treatment to component using existing oscillating aging system, for technological parameter
Formulation there is also biggish subjectivities, mainly determine specific process parameter value by experience, will necessarily lead in this way
It causes vibration aging technology in the application, often will appear the undesirable situation of residual stress eradicating efficacy, it is therefore necessary to vibration
Dynamic aging system and method carry out further research.For current oscillating aging system application when intelligent level it is low and
The undesirable deficiency of timeliness effect, the present invention propose a kind of green intelligent oscillating aging system and method.
Summary of the invention
For the current oscillating aging system deficiency that intelligent level is low and timeliness effect is undesirable in application, this hair
It is bright to propose a kind of green intelligent oscillating aging system and method, it is intended in order to improve oscillating aging system intelligent level and
Obtain the effect of ideal Relieving Residual Stress in Libration.
Green intelligent oscillating aging system, including master system, signal generator, driver, vibration excitor, strain sensing
Device, dynamic strain indicator, acceleration transducer, charge amplifier, oscillograph, data collecting card, support device；Vibration excitor is fixed on
Component surface, component are supported using flexible support device；Master system control signal generator output amplitude
The independent and continuously adjustable sine excitation signal with frequency；The sine excitation signal of signal generator output is defeated via driver
Enter to vibration excitor, vibration excitor is driven to generate vibration；Acceleration transducer is mounted on component, the output end of acceleration transducer with
The input terminal of charge amplifier connects, and the output end of charge amplifier and the input terminal of oscillograph connect, the output end of oscillograph
It is connect with the input terminal of data collecting card；Strain transducer is pasted on component, and the lead-out wire of strain transducer is answered with dynamic
Become the input terminal connection of instrument, the output end of dynamic strain indicator and the input terminal of data collecting card connect；The output of data collecting card
End is connect with master system.
Master system includes the strain waveform acquisition module for obtaining the collected strain waveform of dynamic strain indicator, from strain
The strain peak extraction module that strain peak value ε (μ ε) is extracted in waveform, is converted to exciting dynamic stress for the strain peak value extracted
Dynamic stress conversion module, component elasticity modulus setup module, obtain the voltage waveform of oscilloscope display voltage waveform obtain
Module extracts the voltage peak extraction module of voltage peak U (V) from voltage waveform.
The elastic modulus E (GPa) of component is preset in component elasticity modulus setup module；Excited vibration stress and strain peak value
Transformational relation beWherein σdFor exciting dynamic stress, exciting dynamic stress passes through the display in master system
Interface display is to user.
Further, support device is elastic element.
Further, acceleration transducer is piezoelectric acceleration transducer.
Green intelligent oscillation time-effect method the following steps are included:
(1), finite element numerical simulation software is installed in master system in advance, is built using finite element numerical simulation software
The three-dimensional finite element model of vertical component, simulates the actual processing manufacturing process of component, obtains the surface residual stress distribution of component
State；Numerical value model analysis is carried out to component, obtains each rank strain vibration shape and intrinsic frequency of component；
(2), the component surface residual stress distribution state obtained according to numerical simulation analysis determines that the larger remnants of component are answered
Region where power；Each rank strain vibration shape of component obtained according to numerical value model analysis, determines each rank strain vibration shape large strain
The region at place；Strain when region where choosing strain vibration shape large strain is consistent with the region where larger residual stress
The vibration shape, effective vibration shape when as vibration stress relief treatment, ginseng when the corresponding intrinsic frequency of the strain vibration shape is as frequency sweep processing
Frequency is examined, and is denoted as fr(Hz)；
(3), the effective vibration shape determined according to step (2), the vibration peak for determining component and the position where vibration nodal point；
Vibration excitor is fixed at the vibration peak position of component；Flexible support device pair is used at the vibration nodal point of component
Component is supported, so that vibration excitor carries out exciting to component；Acceleration transducer is mounted on the larger residual stress institute of component
Region；Strain transducer is pasted onto the region where the larger residual stress of component；Connect signal link；Power on；
(4), the elastic modulus E (GPa) of component is set in component elasticity modulus setup module；Strain waveform obtains module
Obtain the collected strain waveform of dynamic strain indicator；Strain peak extraction module extracts strain peak value ε (μ ε) from strain waveform；
The transformational relation of the excited vibration stress and strain peak value exported in the dynamic stress conversion module of exciting dynamic stress isAnd user is shown to by the display interface in master system；
(5), the reference frequency f determined according to step (2)r(Hz), 0.8f is determinedr(Hz) swash as the initial of frequency sweep vibration
Vibration frequency starts to carry out frequency sweep vibration to component, when obtaining the maximum frequency of component vibration amplitude as vibration stress relief treatment
Excited frequency f；
(6), component is carried out determining frequency vibration ageing treatment at determining excited frequency f, according to step (1) numerical simulation
The excited vibration acted on component that obtained component surface residual stress distribution state is obtained with step (4) test is analyzed to answer
Power determines exciting dynamic stress when component vibration stress relief treatment；
(7), when determine frequency vibration ageing treatment at determining excited frequency f to component, using the Δ t time as interval,
The peak value for obtaining strain signal is cut off the power when the peak holding of strain signal is constant, stops carrying out oscillating aging to component
Processing.
Further, the finite element numerical simulation software is ANSYS finite element software.
Further, the signal link includes the signal link between master system and signal generator；Signal hair
Signal link between raw device and driver；Signal link between driver and vibration excitor；Strain transducer and dynamic strain
Signal link between instrument；Signal link between dynamic strain indicator and data collecting card；Acceleration transducer and charge amplify
Signal link between device；Signal link between charge amplifier and oscillograph；Letter between oscillograph and data collecting card
Number line；Signal link between data collecting card and master system；The power supply includes master system, signal generation
Device, driver, vibration excitor, dynamic strain indicator, charge amplifier, oscillograph and data collecting card power supply.
Further, the reference frequency f determined in step (5) according to step (2)r(Hz), 0.8f is determinedr(Hz) it is used as frequency sweep
The initial excited frequency of vibration starts to carry out frequency sweep vibration to component, obtains the maximum frequency of component vibration amplitude as vibration
Excited frequency f when ageing treatment the following steps are included:
(5.1), the initial excited frequency f of frequency sweep vibration1It is set as 0.8fr(Hz), it is then stepped up by step-length of 10Hz
The frequency of frequency sweep vibration；It is aobvious that voltage waveform in master system obtains oscillograph when module records each excited frequency respectively
The voltage waveform shown, while oscilloscope display when the voltage peak extraction module in master system extracts each excited frequency
Voltage waveform peak value, obtain frequency when voltage peak maximum, and be denoted as f11；
(5.2), the initial excited frequency of frequency sweep vibration is set as (f11- 10) Hz is stepped up frequency sweep vibration by step-length of 1Hz
Dynamic frequency；Then the process for repeating step (5.1), obtains frequency when voltage peak maximum, and be denoted as f12, when as vibrating
Excited frequency f when effect processing.
Further, the voltage peak is for characterizing the vibration amplitude acted on component.
The Sensitirity va1ue of the acceleration transducer is s (pC/ms-2), the sensitivity coefficient of charge amplifier input terminal
For S (pC/Unit), amplification coefficient is F (Unit/V), then acts on the acceleration vibration level on component and turn between voltage peak
The relationship of changing isWherein a is the acceleration vibration level acted on component, therefore voltage peak can be used in
Characterization acts on the vibration amplitude on component, and acts on the vibration amplitude on component using the voltage peak characterization, can
To reduce the processing workload of master system, the operational efficiency of entire green intelligent oscillating aging system is improved.
Further, the excited vibration for determining foundation and being generated for the vibration excitor of exciting dynamic stress described in step (6)
The sum of peak value residual stress that the amplitude of stress and the numerical simulation analysis obtain is greater than the yield strength of component, while institute
The amplitude for the exciting dynamic stress that the vibration excitor stated generates is less than the fatigue limit of component.
Further, interval time Δ t described in step (7) is 1min.
Technical concept of the invention is: by master system, signal generator, driver, vibration excitor, acceleration sensing
Device, strain transducer, dynamic strain indicator, charge amplifier, oscillograph, data collecting card and support device form green intelligent
Oscillating aging system, whole system are controlled using master system, improve the intelligent level of oscillating aging system, together
The means that Shi Caiyong virtual emulation and dynamic strain measuring technology combine determine technological parameter when vibration stress relief treatment, can
Obtain the effect of ideal Relieving Residual Stress in Libration.
Beneficial effects of the present invention are as follows:
It 1, is to pass through when carrying out vibration stress relief treatment to component using green intelligent oscillating aging system proposed by the present invention
Master system is controlled, and workload is reduced, and improves work efficiency the intelligent level with oscillating aging system.
2, technological parameter of the green intelligent oscillating aging system proposed by the present invention when determining component vibration stress relief treatment
When, virtual emulation and dynamic strain measuring technology are used, the effect of ideal Relieving Residual Stress in Libration is help to obtain
Fruit.
3, when carrying out vibration stress relief treatment to component using green intelligent oscillating aging system proposed by the present invention, using structure
The strain vibration shape of part determines technological parameter when vibration stress relief treatment, is because straining the vibration shape relative to the displacement vibration shape to component
Microdefect is more sensitive, thus Vibration Aging Process parameter determining on this basis is more advantageous to when obtaining ideal vibration
Effect eliminates the effect of residual stress, while determining component vibration stress relief treatment using the changing rule of monitoring component strain waveform
Time it is also more meaningful.
Detailed description of the invention
Fig. 1 green intelligent oscillating aging system schematic diagram.
Specific embodiment
Referring to attached drawing, the present invention is further illustrated:
Green intelligent oscillating aging system, including master system, signal generator, driver, vibration excitor, strain sensing
Device, dynamic strain indicator, acceleration transducer, charge amplifier, oscillograph, data collecting card, support device；Vibration excitor is fixed on
Component surface, component are supported using flexible support device；Master system control signal generator output amplitude
The independent and continuously adjustable sine excitation signal with frequency；The sine excitation signal of signal generator output is defeated via driver
Enter to vibration excitor, vibration excitor is driven to generate vibration；Acceleration transducer is mounted on component, the output end of acceleration transducer with
The input terminal of charge amplifier connects, and the output end of charge amplifier and the input terminal of oscillograph connect, the output end of oscillograph
It is connect with the input terminal of data collecting card；Strain transducer is pasted on component, and the lead-out wire of strain transducer is answered with dynamic
Become the input terminal connection of instrument, the output end of dynamic strain indicator and the input terminal of data collecting card connect；The output of data collecting card
End is connect with master system.
Master system includes the strain waveform acquisition module for obtaining the collected strain waveform of dynamic strain indicator, from strain
The strain peak extraction module that strain peak value ε (μ ε) is extracted in waveform, is converted to exciting dynamic stress for the strain peak value extracted
Dynamic stress conversion module, component elasticity modulus setup module, obtain the voltage waveform of oscilloscope display voltage waveform obtain
Module extracts the voltage peak extraction module of voltage peak U (V) from voltage waveform.
The elastic modulus E (GPa) of component is preset in component elasticity modulus setup module；Excited vibration stress and strain peak value
Transformational relation beWherein σdFor exciting dynamic stress, exciting dynamic stress passes through the display in master system
Interface display is to user.
Further, support device is elastic element.
Further, acceleration transducer is piezoelectric acceleration transducer.
Green intelligent oscillation time-effect method the following steps are included:
(1), finite element numerical simulation software is installed in master system in advance, is built using finite element numerical simulation software
The three-dimensional finite element model of vertical component, simulates the actual processing manufacturing process of component, obtains the surface residual stress distribution of component
State；Numerical value model analysis is carried out to component, obtains each rank strain vibration shape and intrinsic frequency of component；
(2), the component surface residual stress distribution state obtained according to numerical simulation analysis determines that the larger remnants of component are answered
Region where power；Each rank strain vibration shape of component obtained according to numerical value model analysis, determines each rank strain vibration shape large strain
The region at place；Strain when region where choosing strain vibration shape large strain is consistent with the region where larger residual stress
The vibration shape, effective vibration shape when as vibration stress relief treatment, ginseng when the corresponding intrinsic frequency of the strain vibration shape is as frequency sweep processing
Frequency is examined, and is denoted as fr(Hz)；
(3), the effective vibration shape determined according to step (2), the vibration peak for determining component and the position where vibration nodal point；
Vibration excitor is fixed at the vibration peak position of component；Flexible support device pair is used at the vibration nodal point of component
Component is supported, so that vibration excitor carries out exciting to component；Acceleration transducer is mounted on the larger residual stress institute of component
Region；Strain transducer is pasted onto the region where the larger residual stress of component；Connect signal link；Power on；
(4), the elastic modulus E (GPa) of component is set in component elasticity modulus setup module；Strain waveform obtains module
Obtain the collected strain waveform of dynamic strain indicator；Strain peak extraction module extracts strain peak value ε (μ ε) from strain waveform；
The transformational relation of the excited vibration stress and strain peak value exported in the dynamic stress conversion module of exciting dynamic stress isAnd user is shown to by the display interface in master system；
(5), the reference frequency f determined according to step (2)r(Hz), 0.8f is determinedr(Hz) swash as the initial of frequency sweep vibration
Vibration frequency starts to carry out frequency sweep vibration to component, when obtaining the maximum frequency of component vibration amplitude as vibration stress relief treatment
Excited frequency f；
(6), component is carried out determining frequency vibration ageing treatment at determining excited frequency f, according to step (1) numerical simulation
The excited vibration acted on component that obtained component surface residual stress distribution state is obtained with step (4) test is analyzed to answer
Power determines exciting dynamic stress when component vibration stress relief treatment；
(7), when determine frequency vibration ageing treatment at determining excited frequency f to component, using the Δ t time as interval,
The peak value for obtaining strain signal is cut off the power when the peak holding of strain signal is constant, stops carrying out oscillating aging to component
Processing.
Further, the finite element numerical simulation software is ANSYS finite element software.
Further, the signal link includes the signal link between master system and signal generator；Signal hair
Signal link between raw device and driver；Signal link between driver and vibration excitor；Strain transducer and dynamic strain
Signal link between instrument；Signal link between dynamic strain indicator and data collecting card；Acceleration transducer and charge amplify
Signal link between device；Signal link between charge amplifier and oscillograph；Letter between oscillograph and data collecting card
Number line；Signal link between data collecting card and master system；The power supply includes master system, signal generation
Device, driver, vibration excitor, dynamic strain indicator, charge amplifier, oscillograph and data collecting card power supply.
Further, the reference frequency f determined in step (5) according to step (2)r(Hz), 0.8f is determinedr(Hz) it is used as frequency sweep
The initial excited frequency of vibration starts to carry out frequency sweep vibration to component, obtains the maximum frequency of component vibration amplitude as vibration
Excited frequency f when ageing treatment the following steps are included:
(5.1), the initial excited frequency f of frequency sweep vibration1It is set as 0.8fr(Hz), it is then stepped up by step-length of 10Hz
The frequency of frequency sweep vibration；It is aobvious that voltage waveform in master system obtains oscillograph when module records each excited frequency respectively
The voltage waveform shown, while oscilloscope display when the voltage peak extraction module in master system extracts each excited frequency
Voltage waveform peak value, obtain frequency when voltage peak maximum, and be denoted as f11；
(5.2), the initial excited frequency of frequency sweep vibration is set as (f11- 10) Hz is stepped up frequency sweep vibration by step-length of 1Hz
Dynamic frequency；Then the process for repeating step (5.1), obtains frequency when voltage peak maximum, and be denoted as f12, when as vibrating
Excited frequency f when effect processing.
Further, the voltage peak is for characterizing the vibration amplitude acted on component.
The Sensitirity va1ue of the acceleration transducer is s (pC/ms-2), the sensitivity coefficient of charge amplifier input terminal
For S (pC/Unit), amplification coefficient is F (Unit/V), then acts on the acceleration vibration level on component and turn between voltage peak
The relationship of changing isWherein a is the acceleration vibration level acted on component, therefore voltage peak can be used in
Characterization acts on the vibration amplitude on component, and acts on the vibration amplitude on component using the voltage peak characterization, can
To reduce the processing workload of master system, the operational efficiency of entire green intelligent oscillating aging system is improved.
Further, the excited vibration for determining foundation and being generated for the vibration excitor of exciting dynamic stress described in step (6)
The sum of peak value residual stress that the amplitude of stress and the numerical simulation analysis obtain is greater than the yield strength of component, while institute
The amplitude for the exciting dynamic stress that the vibration excitor stated generates is less than the fatigue limit of component.
Further, interval time Δ t described in step (7) is 1min.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range should not be construed as being limited to the specific forms stated in the embodiments, and protection scope of the present invention is also and in art technology
Personnel conceive according to the present invention it is conceivable that equivalent technologies mean.
Claims (11)
1. a kind of method for carrying out vibration stress relief treatment using green intelligent oscillating aging system, when the green intelligent vibrates
Effect system includes master system, signal generator, driver, vibration excitor, strain transducer, dynamic strain indicator, acceleration biography
Sensor, charge amplifier, oscillograph, data collecting card, support device；Vibration excitor is fixed on component surface, and component, which uses, to be had
The support device of elasticity is supported；Master system control signal generator output amplitude and frequency are independent and continuously adjustable
Sine excitation signal；The sine excitation signal of signal generator output is input to vibration excitor via driver, drives vibration excitor
Generate vibration；Acceleration transducer is mounted on component, and the output end of acceleration transducer and the input terminal of charge amplifier connect
It connects, the output end of charge amplifier and the input terminal of oscillograph connect, the output end of oscillograph and the input terminal of data collecting card
Connection；Strain transducer is pasted on component, and the input terminal of the lead-out wire of strain transducer and dynamic strain indicator connects, dynamic
The output end of deformeter and the input terminal of data collecting card connect；The output end of data collecting card is connect with master system,
It is characterized in that method carries out in accordance with the following steps:
(1), finite element numerical simulation software is installed in master system in advance, structure is established using finite element numerical simulation software
The three-dimensional finite element model of part simulates the actual processing manufacturing process of component, obtains the surface residual stress distribution of component；
Numerical value model analysis is carried out to component, obtains each rank strain vibration shape and intrinsic frequency of component；
(2), the component surface residual stress distribution state obtained according to numerical simulation analysis determines the larger residual stress institute of component
Region；Each rank strain vibration shape of component obtained according to numerical value model analysis, determines each rank strain vibration shape large strain place
Region；Strain vibration when region where choosing strain vibration shape large strain is consistent with the region where larger residual stress
Type, effective vibration shape when as vibration stress relief treatment, reference when the corresponding intrinsic frequency of the strain vibration shape is as frequency sweep processing
Frequency, and it is denoted as fr(Hz)；
(3), the effective vibration shape determined according to step (2), the vibration peak for determining component and the position where vibration nodal point；It will swash
Vibration device is fixed at the vibration peak position of component；Using flexible support device to component at the vibration nodal point of component
It is supported, so that vibration excitor carries out exciting to component；Acceleration transducer is mounted on where the larger residual stress of component
Region；Strain transducer is pasted onto the region where the larger residual stress of component；Connect signal link；Power on；
(4), the elastic modulus E (GPa) of component is set in component elasticity modulus setup module；Strain waveform obtains module and obtains
The collected strain waveform of dynamic strain indicator；Strain peak extraction module extracts strain peak value ε (μ ε) from strain waveform；Exciting
The transformational relation of the excited vibration stress and strain peak value exported in the dynamic stress conversion module of dynamic stress is
And user is shown to by the display interface in master system；
(5), the reference frequency f determined according to step (2)r(Hz), 0.8f is determinedr(Hz) as the initial exciting frequency of frequency sweep vibration
Rate starts to carry out frequency sweep vibration to component, obtains exciting of the maximum frequency of component vibration amplitude as vibration stress relief treatment when
Frequency f；
(6), component is carried out determining frequency vibration ageing treatment at determining excited frequency f, according to step (1) numerical simulation analysis
The obtained exciting dynamic stress acted on component is tested in obtained component surface residual stress distribution state and step (4), really
Determine exciting dynamic stress when component vibration stress relief treatment；
(7), it when determine frequency vibration ageing treatment at determining excited frequency f to component, using the Δ t time as interval, obtains
The peak value of strain signal is cut off the power when the peak holding of strain signal is constant, stops carrying out at oscillating aging component
Reason.
2. the method as described in claim 1, it is characterised in that: including obtaining, dynamic strain indicator is collected to answer master system
The strain waveform for becoming waveform obtains module, and the strain peak extraction module of strain peak value ε (μ ε) is extracted from strain waveform, will be mentioned
The strain peak value got is converted to the dynamic stress conversion module of exciting dynamic stress, and component elasticity modulus setup module obtains oscillography
The voltage waveform for the voltage waveform that device is shown obtains module, and the voltage peak that voltage peak U (V) is extracted from voltage waveform extracts
Module.
3. the method as described in claim 1, it is characterised in that: be preset with the elasticity of component in component elasticity modulus setup module
Modulus E (GPa)；The transformational relation of excited vibration stress and strain peak value isWherein σdFor exciting dynamic stress,
Exciting dynamic stress is shown to user by the display interface in master system.
4. the method as described in claim 1, it is characterised in that: support device is elastic element.
5. the method as described in claim 1, it is characterised in that: acceleration transducer is piezoelectric acceleration transducer.
6. the method as described in claim 1, it is characterised in that: the finite element numerical simulation software is ANSYS finite element
Software.
7. the method as described in claim 1, it is characterised in that: the signal link includes that master system and signal occur
Signal link between device；Signal link between signal generator and driver；Signal between driver and vibration excitor connects
Line；Signal link between strain transducer and dynamic strain indicator；Signal link between dynamic strain indicator and data collecting card；
Signal link between acceleration transducer and charge amplifier；Signal link between charge amplifier and oscillograph；Oscillography
Signal link between device and data collecting card；Signal link between data collecting card and master system；The power supply
It is adopted including master system, signal generator, driver, vibration excitor, dynamic strain indicator, charge amplifier, oscillograph and data
The power supply of truck.
8. the method as described in claim 1, it is characterised in that: the reference frequency f determined in step (5) according to step (2)r
(Hz), 0.8f is determinedr(Hz) the initial excited frequency as frequency sweep vibration starts to carry out frequency sweep vibration to component, obtains component
Excited frequency f when the maximum frequency of vibration amplitude is as vibration stress relief treatment the following steps are included:
(5.1), the initial excited frequency f of frequency sweep vibration1It is set as 0.8fr(Hz), frequency sweep then is stepped up by step-length of 10Hz
The frequency of vibration；Voltage waveform in master system obtains oscilloscope display when module records each excited frequency respectively
Voltage waveform, at the same when the voltage peak extraction module in master system extracts each excited frequency oscilloscope display electricity
The peak value of corrugating obtains frequency when voltage peak maximum, and is denoted as f11；
(5.2), the initial excited frequency of frequency sweep vibration is set as (f11- 10) Hz is stepped up frequency sweep vibration by step-length of 1Hz
Frequency；Then the process for repeating step (5.1), obtains frequency when voltage peak maximum, and be denoted as f12, as at oscillating aging
Excited frequency f when reason.
9. the method as described in claim 1, it is characterised in that: the voltage peak is for characterizing the vibration acted on component
Dynamic amplitude.
10. the method as described in claim 1, it is characterised in that: exciting dynamic stress described in step (6) is determined according to being
The sum of the peak value residual stress that the amplitude for the exciting dynamic stress that the vibration excitor generates and the numerical simulation analysis obtain
Greater than the fatigue limit that the amplitude of the yield strength of component, while the exciting dynamic stress of the vibration excitor generation is less than component.
11. the method as described in claim 1, it is characterised in that: interval time Δ t described in step (7) is 1min.
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| CN201811050251.5A CN109182728B (en) | 2018-09-10 | 2018-09-10 | Green intelligent vibration aging system and method |
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| CN109182728B CN109182728B (en) | 2023-08-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111460700A (en) * | 2020-02-27 | 2020-07-28 | 扬州大学 | Structural vibration aging frequency obtaining method based on transfer dissipation correction |
| CN111552375A (en) * | 2020-02-19 | 2020-08-18 | 瑞声科技(新加坡)有限公司 | System residual vibration eliminating method, equipment and storage medium |
| CN111737838A (en) * | 2020-07-06 | 2020-10-02 | 上海海事大学 | Method for determining bionic crawling type ultrahigh frequency vibration aging bionic crawling interval |
| CN113867205A (en) * | 2021-09-27 | 2021-12-31 | 徐工集团工程机械股份有限公司道路机械分公司 | Vibration auxiliary control method and control system for vibratory roller and vibratory roller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1421784A1 (en) * | 1987-03-25 | 1988-09-07 | Каунасский Политехнический Институт Им.Антанаса Снечкуса | Method and apparatus for vibration treatment for reducing residual strain in structure |
| CN105506267A (en) * | 2015-12-25 | 2016-04-20 | 常州大学 | Multiple-frequency coupling vibration aging system and method thereof |
| CN105543469A (en) * | 2015-12-25 | 2016-05-04 | 常州大学 | System and method for determining vibration aging excitation frequency |
| CN108004388A (en) * | 2017-12-22 | 2018-05-08 | 上海海事大学 | A kind of method of definite ultrasonic vibration timeliness excited frequency |
-
2018
- 2018-09-10 CN CN201811050251.5A patent/CN109182728B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1421784A1 (en) * | 1987-03-25 | 1988-09-07 | Каунасский Политехнический Институт Им.Антанаса Снечкуса | Method and apparatus for vibration treatment for reducing residual strain in structure |
| CN105506267A (en) * | 2015-12-25 | 2016-04-20 | 常州大学 | Multiple-frequency coupling vibration aging system and method thereof |
| CN105543469A (en) * | 2015-12-25 | 2016-05-04 | 常州大学 | System and method for determining vibration aging excitation frequency |
| CN108004388A (en) * | 2017-12-22 | 2018-05-08 | 上海海事大学 | A kind of method of definite ultrasonic vibration timeliness excited frequency |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111552375A (en) * | 2020-02-19 | 2020-08-18 | 瑞声科技(新加坡)有限公司 | System residual vibration eliminating method, equipment and storage medium |
| CN111552375B (en) * | 2020-02-19 | 2023-08-04 | 瑞声科技(新加坡)有限公司 | System residual vibration elimination method, device and storage medium |
| CN111460700A (en) * | 2020-02-27 | 2020-07-28 | 扬州大学 | Structural vibration aging frequency obtaining method based on transfer dissipation correction |
| CN111460700B (en) * | 2020-02-27 | 2023-05-23 | 扬州大学 | Structure vibration aging frequency acquisition method based on transmission dissipation correction |
| CN111737838A (en) * | 2020-07-06 | 2020-10-02 | 上海海事大学 | Method for determining bionic crawling type ultrahigh frequency vibration aging bionic crawling interval |
| CN111737838B (en) * | 2020-07-06 | 2024-01-30 | 上海海事大学 | Method for determining bionic crawling distance of bionic crawling type ultrahigh-frequency vibration aging bionic crawling |
| CN113867205A (en) * | 2021-09-27 | 2021-12-31 | 徐工集团工程机械股份有限公司道路机械分公司 | Vibration auxiliary control method and control system for vibratory roller and vibratory roller |
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