CN105468879A - Method and system for processing vibration data - Google Patents
Method and system for processing vibration data Download PDFInfo
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- CN105468879A CN105468879A CN201610020394.6A CN201610020394A CN105468879A CN 105468879 A CN105468879 A CN 105468879A CN 201610020394 A CN201610020394 A CN 201610020394A CN 105468879 A CN105468879 A CN 105468879A
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Abstract
The invention provides a method and system for processing vibration data. The method comprises the steps that the vibration data of at least one test point on equipment is collected, and all the vibration data of each test point is stored in a single channel mode; data analysis is performed on the vibration data of each single channel to obtain a vibration amplitude value of one test point at characteristic frequency; pointer operation is performed on the vibration amplitude value to obtain a vibration characteristic value. According to the method and system, the vibration data of multiple channels of multiple test points is analyzed and postprocessed according to the related data requirements through the efficient calculation performance of a computer; related experimental analysis personnel are decreased, and the experimental analysis personnel are made to concentrate on fault position and fault diagnosis of vibration problems and related vibration reducing and noise lowering work.
Description
Technical field
The disclosure relates in general to technical field of data processing, in particular to a kind of method and system processing vibration data.
Background technology
In the machine operation process of high rotating speed high capacity, get more and more because vibrating the problem caused, the safety in production be subject to because of vibration problem also receives much concern.Enterprise, in safety in production process, needs to carry out vibration monitoring to ensure to manufacture and experimental safe to mechanical system usually.In vibration monitoring process, often can run into the data statistic analysis active redundancy complexity that vibration data amount causes especially being greatly correlated with, need at substantial time and efforts to win with in data interpretation process in the data of sequencing.
At present, in enterprise's production and process of the test, introduced numerous vibration transducers both domestic and external, vibrating data collection equipment, vibrating data analysis software, comprised B & K, Dewetron, LMS, domestic data acquisition equipment comprises hundred million perseverances, east China etc.The relevant vibration analysis software introduced, because consider versatility, generally only can provide the signal analysis method that versatility is very strong, and these relevant methods are enough when vibration analysis is just risen.Along with to the accumulation of relevant industries to the experience of vibration test, more and more deep to the understanding of mechanical system vibration, there is the height of higher deep layer to ask to the form of expression of the analytical parameters of vibration data, analytical approach, vibration data.
Existing test analysis software provides the preservation vibrated, format conversion, FFT (FastFourierTransformation, Fast Fourier Transform (FFT)) etc. function, but can not realize typical Mechanical Running Condition piecewise analysis, win the vibration values under corresponding characteristic frequency, and form corresponding data sheet function.And these functions often need the vibration analysis personnel be correlated with to spend a large amount of time and efforts.
Therefore, a kind of method and system processing vibration data is needed.
Disclosed in described background technology part, above-mentioned information is only for strengthening the understanding to background of the present disclosure, and therefore it can comprise the information do not formed prior art known to persons of ordinary skill in the art.
Summary of the invention
The disclosure provides a kind of method and system processing vibration data, to solve in prior art the technical matters processing and need the at substantial time in vibration data process.
Other characteristics of the present disclosure and advantage become obvious by by detailed description below, or the acquistion partially by practice of the present disclosure.
According to one side of the present disclosure, the disclosure provides a kind of method processing vibration data, comprising:
The vibration data of at least one test point on collecting device, and all vibration datas of each test point are stored with single pass form;
Data analysis is carried out to each single pass described vibration data, obtains the vibration amplitude of certain test point under characteristic frequency;
Index computing is carried out to described vibration amplitude, obtains vibration performance value.
In an embodiment of the present disclosure, after gathering described vibration data, before carrying out data analysis, described disposal route also comprises:
Format conversion is carried out to described vibration data, obtains the vibration data of general format, and the vibration data of described general format is preserved as raw data.
In an embodiment of the present disclosure, also comprise:
Certain test point described is carried out to the collection of the vibration data of full time history, and preserve carrying out the vibration amplitude that data analysis obtains as the vibration data of full time history.
In an embodiment of the present disclosure, also comprise:
Obtain the status information that described equipment runs, and the beginning and ending time of carrying out signal analysis is extracted according to described status information, and in conjunction with the described beginning and ending time, data analysis is carried out to described vibration data, obtain the described vibration performance value of described equipment under different conditions.
In an embodiment of the present disclosure, data analysis is carried out to described vibration data and comprises:
The time-domain analysis of full time history, frequency-domain analysis and time frequency analysis are carried out respectively to described vibration data.
According to one side of the present disclosure, the disclosure also provides a kind of system processing vibration data, comprising:
Data acquisition module, the vibration data of at least one test point on collecting device, and all vibration datas of each test point are stored with single pass form;
Analysis module, for carrying out data analysis to each single pass described vibration data, obtains the vibration amplitude of certain test point under characteristic frequency; And
Computing module, for carrying out index computing to described vibration amplitude, obtains vibration performance value.
In an embodiment of the present disclosure, also comprise:
Format converting module, for carrying out format conversion to described vibration data, obtains the vibration data of general format; And
First preserves module, for being preserved as raw data by the vibration data of described general format.
In an embodiment of the present disclosure, also comprise:
Second preserves module, for carrying out the collection of the vibration data of full time history to certain test point described, and preserves carrying out the vibration amplitude that data analysis obtains as the vibration data of full time history.
In an embodiment of the present disclosure, also comprise:
State acquisition module, for obtaining the status information that described equipment runs, and extracts the beginning and ending time of carrying out signal analysis according to described status information; And
Feature acquisition module, for carrying out data analysis in conjunction with the described beginning and ending time to described vibration data, obtains the described vibration performance value of described equipment under different conditions.
In an embodiment of the present disclosure, described analysis module carries out the time-domain analysis of full time history, frequency-domain analysis and time frequency analysis respectively to described vibration data.
The technical scheme that embodiment of the present disclosure provides can comprise following beneficial effect:
By utilizing the efficient calculation performance of computing machine, realize analyzing and aftertreatment according to relevant data demand the multichannel vibration data of multiple test point.Reduce relevant analysis of experiments personnel, make analysis of experiments personnel focus one's attention on to the localization of fault of vibration problem, fault diagnosis, and in relevant vibration and noise reducing work.
Should be understood that, it is only exemplary that above general description and details hereinafter describe, and can not limit the disclosure.
Accompanying drawing explanation
Describe its example embodiment in detail by referring to accompanying drawing, above-mentioned and other target, feature and advantage of the present disclosure will become more apparent.
Fig. 1-Fig. 3 illustrates a kind of process flow diagram processing the method for vibration data according to disclosure example embodiment.
Fig. 4 illustrate according in disclosure example enforcement side to the schematic diagram that vibration data stores according to the differentiation of date and state.
Fig. 5 illustrates according to time history vibrating data analysis result schematic diagram complete in disclosure example enforcement side.
Fig. 6 illustrates the data segment spectrogram according to there being abnormal vibration in disclosure example embodiment.
Fig. 7-Figure 11 illustrate according in disclosure example embodiment not each test point of same date vibration amplitude under corresponding frequencies data representation intention.
Figure 12 illustrates according to test point vibration amplitude variation tendency schematic diagram in disclosure example embodiment.
Figure 13 illustrates according to the correlation analysis comparison diagram of vibration amplitude in disclosure example embodiment with parameter.
Figure 14 illustrates flow chart of data processing figure disclosed in the present embodiment.
Figure 15 illustrates a kind of schematic diagram processing the system of vibration data according to disclosure example embodiment.
Embodiment
More fully example embodiment is described referring now to accompanying drawing.But example embodiment can be implemented in a variety of forms, and should not be understood to be limited to example set forth herein; On the contrary, these embodiments are provided to make the disclosure more comprehensively with complete, and the design of example embodiment will be conveyed to those skilled in the art all sidedly.Accompanying drawing is only schematic illustrations of the present disclosure, and not necessarily is drawn in proportion.Reference numeral identical in figure represents same or similar part, thus will omit the repeated description to them.
In addition, described feature, structure or characteristic can be combined in one or more embodiment in any suitable manner.In the following description, provide many details thus provide fully understanding embodiment of the present disclosure.But, one of skill in the art will appreciate that and can put into practice technical scheme of the present disclosure and to omit in described specific detail one or more, or other method, constituent element, device, step etc. can be adopted.In other cases, not being shown specifically or describing known features, method, device, realization, material or operation makes each side of the present disclosure thicken to avoid that a presumptuous guest usurps the role of the host.
Some block schemes shown in accompanying drawing are functional entitys, not necessarily must with physics or independently entity is corresponding in logic.Software form can be adopted to realize these functional entitys, or realize these functional entitys in one or more hardware module or integrated circuit, or realize these functional entitys in heterogeneous networks and/or processor device and/or microcontroller device.
Embodiment one
Fig. 1, Fig. 2 and Fig. 3 illustrate a kind of process flow diagram processing the method for vibration data according to disclosure example embodiment, the method may be used for monitoring the Vibration Condition of equipment, obtain vibration data, and further the vibration data collected is carried out computer programing process according to the analytical mathematics of general vibration analysis.
As shown in Figure 1, in step s 11, the vibration data of at least one test point on collecting device, and all vibration datas of each test point are stored with single pass form.
In step s 12, data analysis is carried out to each single pass vibration data, obtain the vibration amplitude of certain test point under characteristic frequency.
In step s 13, index computing is carried out to vibration amplitude, obtain vibration performance value.Wherein index computing comprises maximal value, minimum value, mean value and the effective value etc. of trying to achieve vibration amplitude.
The method is by setting up a kind of algorithm flow of automatic business processing vibration data, and the computing method of integrated effective vibration index in the algorithm of automatic business processing, are applicable to the vibration data process of large data.
As shown in Figure 2, in the present embodiment, after step S11 gathers vibration data, before step S12 carries out data analysis, disposal route also comprises:
Step S14: carry out format conversion to vibration data, obtains the vibration data of general format, and is preserved as raw data by the vibration data of general format.
In the present embodiment, gathered the vibration data of corresponding test point by the sensor being arranged on each test point, and all vibration datas are divided according to test point, store with single channel form.Each single channel stores the data of the full time history of this test point, due to the form of vibration data gathered may have multiple in dissimilar, therefore need to carry out format conversion to vibration data, vibration data in each passage is converted to unified general format, be generally and be convenient to subsequent calculations, vibration data is converted to decimal data by unification.Wherein full time history refers to collection and the analysis of a certain test point all being carried out to vibration data at different time, and the concrete time needs to set according to actual conditions.
In addition, see Fig. 2, in step S11, certain test point is carried out to the collection of the vibration data of full time history, and after step S12 obtains vibration amplitude, also comprises:
Step S15: preserve carrying out the vibration amplitude that data analysis obtains as the vibration data of full time history.
In the present embodiment, after format conversion obtains the vibration data of general format, according to the state for time point data analysis of being correlated with to each single pass vibration data arranged, data analysis comprises: carry out the time-domain analysis of full time history, frequency-domain analysis and time frequency analysis respectively to vibration data.In the present embodiment, fft analysis can be carried out to the typical characteristic frequency comprised in the vibration data under the current state time, in the hope of the vibration amplitude under this characteristic frequency of this test point.
As shown in Figure 3, the method, while carrying out analyzing and processing to vibration data, also comprises record running state information and carries out data analysis according to status information, obtaining the vibration performance value under different conditions
As shown in Figure 3, in the step s 21, the status information that equipment runs is obtained.
In step S22, extract the beginning and ending time of carrying out signal analysis according to status information.
In step S23, data analysis is carried out to each single pass vibration data.
In step s 24 which, in conjunction with the beginning and ending time, data analysis is carried out to vibration data, the vibration performance value of the equipment that obtains under different conditions.
In step s 25, organization and administration are carried out to vibration performance value.
It should be noted that Fig. 1-Fig. 3 is only schematically illustrating of process included by the method for disclosure example embodiment, instead of restriction object.Easy to understand, the process shown in Fig. 1-Fig. 3 does not show or limits the time sequencing of these process.In addition, also easy to understand, these process can be such as synchronous in multiple module or asynchronous executions.
In order to carry out vibration analysis for specific vibration problem, need to divide different states to contrast by equipment running status to data, the analysis result obtained is as shown in table 1 below.Table 1 illustrates the vibration performance value of equipment in certain test period (date-time is 20141027) under different conditions.
As can be seen from Table 1, for no test point, the vibration data gathered is also different, such as all that all acquisition and processing is done to the vibration data in X, Y, Z tri-directions for test point A, B, C, F, G, namely test point D, E, H, I are then only cooked the vibration data of Y and Z-direction and are processed, namely will carry out the collection of the vibration data of different azimuth and subsequent treatment and analysis depending on its concrete condition for different test points.
Table 1
According to the date of vibration test, organization and administration are carried out to the vibration data of general format, namely store according to the vibration data of date-time to each test point, also can preserve according to the beginning and ending time of data signal analysis simultaneously, and typical data is backed up, carry out supplement Analysis as required so that follow-up.As shown in Figure 4, the vibration data on corresponding date is stored in each file, also according to same date different conditions vibration data distinguish, the data storage method of this differentiation stage and state is convenient to follow-up data processing and inversion very much, such as comprising the date altogether is at present 20150706, 20150707, 20150709, 20150724, the vibration data of 20151027 and 20151107, the data being wherein 20150707 and 20150709 for the date also distinguish two states, namely represent with 20150707f1 and 20150707f2 and 20150709f1 and 20150709f2 respectively.
If carry out the time-domain analysis of full time history, frequency-domain analysis and time frequency analysis to the vibration data of general format.Fig. 5 illustrates full time history vibrating data analysis result schematic diagram, as can be seen from Figure 5, has the vibration data in a moment to occur abnormal at time point in the scope of 0 ~ 50s.If exceed restriction for the vibration performance value under certain vibration frequency under certain test point in table 1, computational analysis program can record the vibration figure frequently under this time point of this measuring point, be convenient to further analyze signal, be illustrated in fig. 6 shown below, as can be seen from Figure 6, the vibration data of 20141027 records, the frequency spectrum of test point A under frequency 533Hz, wherein occurs it being a situation for comparatively obvious abnormal vibration.
Meanwhile, the result data of the analysis shown in table 1 is preserved with Excel, and such organizational form can so that carry out the process of time history to result.As illustrated in figures 7-11, illustrate that the date is 20141027,20141107,20150630,20150706 and 20150724 each test points vibration amplitudes under corresponding frequencies respectively, thus a complete database is formed to specific testing equipment, store by date, be convenient to analysis of experiments personnel and check data at any time.
To the database shown in Fig. 7-11, analyst can select the parameter of being correlated with to carry out drawing expression by date to the vibration data under a certain state, is convenient to the variation tendency analyzing vibration, to understand the operation conditions of equipment, as shown in figure 12.From the vibration change of full time history, the impact of certain equipment operational factor on vibration can also be analyzed, be illustrated in fig. 13 shown below.
It should be noted that, Figure 12 and Figure 13 is the data obtained in Algorithm Analysis actual signal used, and these two cases are that the safety test of testpieces provides guarantee.The algorithm of this patent can obtain analyzing the data wanted in practice really, is convenient to analysis and focuses one's attention in localization of fault exclusion process.
Based on above-mentioned, Figure 14 illustrates flow chart of data processing figure disclosed in the present embodiment, roughly comprises data input, data processing and data result three part.
Part I, data input phase, the vibration data of each test point of collecting device and equipment running status information.
Part II, data processing stage, only illustrates the data processing of two passages in Figure 14, before carrying out data analysis, first format conversion is carried out to vibration data, to obtain the vibration data of general format, carry out time-domain analysis, frequency-domain analysis and time frequency analysis more afterwards; The signal analysis beginning and ending time that the vibration data combination of another passage obtains based on equipment running status information also carries out time-domain analysis, frequency-domain analysis and time frequency analysis.
Part III, the data result stage, the vibration data of the general format through format conversion is preserved, also comprise and full time history vibrating data analysis result is obtained to first passage preserve, vibration data under the equipment different conditions obtain second channel stores, but also carries out further organization and administration to vibration performance value.The further expression of result is convenient in organized data management, as the trend analysis that can follow the trail of by date.
In sum, the vibration data automatic processing method that the disclosure provides, by utilizing the efficient calculation performance of computing machine, realizes analyzing and aftertreatment according to relevant data demand the multichannel vibration data of multiple test point.Because the method has automatic search, auto report feature, saves the working time of redundancy.Utilize computer disposal experimental data relatively more objective by artificial treatment, reliably simultaneously.And the method can reduce the quantity of required relevant analysis of experiments personnel, liberation manpower, makes analysis of experiments personnel focus one's attention on to the localization of fault of vibration problem, fault diagnosis, and in relevant vibration and noise reducing work.
Embodiment two
Figure 15 illustrates a kind of system processing vibration data according to disclosure example embodiment, and this system 100 comprises: data acquisition module 110, analysis module 120, computing module 130, format converting module 140, first are preserved module 150, second and preserved module 160, state acquisition module 170 and feature acquisition module 180.
The vibration data of data acquisition module 110 at least one test point on collecting device, and all vibration datas of each test point are stored with single pass form.In the present embodiment, in order to be arranged on equipment, each needs in the test point of monitoring vibration situation data acquisition module 110, to obtain vibration data.
Format converting module 140 is carried out format conversion to vibration data, is obtained the vibration data of general format after gathering for the vibration data of each test point at data acquisition module 110 pairs of equipment.First preserves module 150 is used for carrying out data analysis to each single pass vibration data for the vibration data of general format is carried out preservation analysis module 120 as raw data, obtains the vibration amplitude of certain test point under characteristic frequency.Analysis module 120 pairs of vibration datas carry out the time-domain analysis of full time history, frequency-domain analysis and time frequency analysis respectively.Second preserves module 160 for carrying out the collection of the vibration data of full time history to certain test point, and preserves carrying out the vibration amplitude that data analysis obtains as the vibration data of full time history.Computing module 130, for carrying out index computing to vibration amplitude, obtains vibration performance value, and wherein computing module 130 pairs of vibration amplitudes carry out index computing, try to achieve the maximal value of vibration amplitude, minimum value, mean value and effective value.
The status information that state acquisition module 170 is run for obtaining equipment, and the beginning and ending time of carrying out signal analysis is extracted according to status information.Afterwards, feature acquisition module 180 for carrying out data analysis in conjunction with the beginning and ending time to vibration data, the vibration performance value of the equipment that obtains under different conditions.
The operational scheme that in this system, each module is concrete, see described in embodiment one, can realize identical technique effect, repeat no more herein.
Through the above description of the embodiments, those skilled in the art's easy to understand, example embodiment described herein can pass through software simulating, also can be realized by the mode of the hardware of software combination necessity.Therefore, technical scheme according to disclosure embodiment can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in or on network, comprise some instructions and perform according to the method for disclosure embodiment to make a computing equipment (can be personal computer, server, mobile terminal or the network equipment etc.).
Below illustrative embodiments of the present disclosure is illustrate and described particularly.Should will be understood that, the disclosure is not limited to detailed construction described herein, set-up mode or implementation method; On the contrary, disclosure intention contains and is included in various amendment in the spirit and scope of claims and equivalence is arranged.
Claims (10)
1. process a method for vibration data, it is characterized in that, comprising:
The vibration data of at least one test point on collecting device, and all vibration datas of each test point are stored with single pass form;
Data analysis is carried out to each single pass described vibration data, obtains the vibration amplitude of certain test point under characteristic frequency;
Index computing is carried out to described vibration amplitude, obtains vibration performance value.
2. method according to claim 1, is characterized in that, after gathering described vibration data, before carrying out data analysis, described disposal route also comprises:
Format conversion is carried out to described vibration data, obtains the vibration data of general format, and the vibration data of described general format is preserved as raw data.
3. method according to claim 1, is characterized in that, also comprises:
Certain test point described is carried out to the collection of the vibration data of full time history, and preserve carrying out the vibration amplitude that data analysis obtains as the vibration data of full time history.
4. method according to claim 1, is characterized in that, also comprises:
Obtain the status information that described equipment runs, and the beginning and ending time of carrying out signal analysis is extracted according to described status information, and in conjunction with the described beginning and ending time, data analysis is carried out to described vibration data, obtain the described vibration performance value of described equipment under different conditions.
5. method according to claim 1, is characterized in that, carries out data analysis comprise described vibration data:
The time-domain analysis of full time history, frequency-domain analysis and time frequency analysis are carried out respectively to described vibration data.
6. process a system for vibration data, it is characterized in that, comprising:
Data acquisition module, the vibration data of at least one test point on collecting device, and all vibration datas of each test point are stored with single pass form;
Analysis module, for carrying out data analysis to each single pass described vibration data, obtains the vibration amplitude of certain test point under characteristic frequency; And
Computing module, for carrying out index computing to described vibration amplitude, obtains vibration performance value.
7. system according to claim 6, is characterized in that, also comprises:
Format converting module, for carrying out format conversion to described vibration data, obtains the vibration data of general format; And
First preserves module, for being preserved as raw data by the vibration data of described general format.
8. system according to claim 6, is characterized in that, also comprises:
Second preserves module, for carrying out the collection of the vibration data of full time history to certain test point described, and preserves carrying out the vibration amplitude that data analysis obtains as the vibration data of full time history.
9. system according to claim 6, is characterized in that, also comprises:
State acquisition module, for obtaining the status information that described equipment runs, and extracts the beginning and ending time of carrying out signal analysis according to described status information; And
Feature acquisition module, for carrying out data analysis in conjunction with the described beginning and ending time to described vibration data, obtains the described vibration performance value of described equipment under different conditions.
10. system according to claim 6, is characterized in that, described analysis module carries out the time-domain analysis of full time history, frequency-domain analysis and time frequency analysis respectively to described vibration data.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108692805A (en) * | 2018-05-29 | 2018-10-23 | 中国航发湖南动力机械研究所 | The processing method and system of vibration signal |
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