CN200982888Y - Wring vibration test and analysis system - Google Patents
Wring vibration test and analysis system Download PDFInfo
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- CN200982888Y CN200982888Y CN 200620043471 CN200620043471U CN200982888Y CN 200982888 Y CN200982888 Y CN 200982888Y CN 200620043471 CN200620043471 CN 200620043471 CN 200620043471 U CN200620043471 U CN 200620043471U CN 200982888 Y CN200982888 Y CN 200982888Y
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Abstract
The utility model discloses a torsional vibration test and an analysis system, which comprises a testing system, a data gathering card communicated with the testing system, a signal conditioner communicated with the data gathering card and a torsional vibration sensor arranged on the shafting for inspecting with the outlet end communicated with the signal conditioner. The testing system includes a CPU, a storage connected with the CPU, a RAM, an interface of the gathering card and a testing and analyzing module. And the interface of the gathering card is connected with the data gathering card. The testing and analyzing module comprises a data-logging unit which obtains the dynamic time-domain torque signal, displays the data and saves the data as a data file, a data analyzing unit which reads and processes the dynamic time-domain torque signal in the data file to obtain the frequency spectrum of the dynamic torque signal and a result displaying unit which reads the result data file and displays a three-dimensional bit-diagram, a frequency spectrum diagram and a level diagram. The utility model is capable of being used for the on-site rapid torsional vibration recording and analyzing in kinds of environments.
Description
Technical field
The utility model relates to a kind of torsional oscillation test and analytic system, relates in particular to a kind of test of multi-channel digital torsional oscillation and analytic system based on virtual instrument platform.
Background technology
The test of present various boats and ships, vehicle and land-based power plant torsional vibration of shafting, extensively adopt electromagnetic type torsional oscillation tester, the sensor part of this tester is divided into an electromagnetic sensor and a fluted disc of fastening installation at axle, when axle system rotates, the magnetic force change that causes during by sensor according to the tooth of fluted disc is experienced change in rotational speed.By the electric signal process filtering that sensor transmits, elimination constant speed signal.The signal record of electromagnetic type torsiograph and analysis adopt magnetic tape station to note down.
Though electromagnetic type torsiograph working stability requires lowly to test environment, its record for signal depends on magnetic tape station, and analytic signal is by magnetic tape station output, and then carries out analyzing and processing.Use the electromagnetic type torsiograph to carry out the process of a torsional vibration measurement of system, record, frequency analysis, it is a process that tach signal is changed into electric signal, middle through many simulation links such as analog filtering, analog integration, DC converting, analog records, so have certain distortion and various interference, influence test and analysis precision, make also that simultaneously the speed of analyzing is slow, then and there display result.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of torsional oscillation test and the analytic system that can carry out on-the-spot twisting vibration test, record easily and quickly and analyze.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to provide a kind of torsional oscillation test and analytic system, comprise: a test macro, the data collecting card that is connected with this test macro, with the signal conditioner of this data acquisition card connection and be located at axle to be measured and fasten the torsional oscillation sensor that output terminal is connected with this signal conditioner;
Described test macro comprises CPU and the storer that is connected with this CPU, RAM, capture card interface and test and analysis module, and this capture card interface also is connected to described data collecting card, and this test and analysis module comprise:
Data record unit is used to be provided with the operational factor of described data collecting card, obtains the time domain dynamic torque signal, and the line data of going forward side by side shows and data are saved as data file;
Data analysis unit, read and the processing said data file in the time domain dynamic torque signal, obtaining the dynamic torque signal frequency spectrum, and show and the result saved as result data files;
Display unit reads described result data files as a result, shows three-dimensional the spectrum system of battle formations, spectrogram and order figure that should result data files.
Described torsional oscillation test and analytic system, wherein, described torsional oscillation sensor is made of contact photoelectric encoder or contactless passive revolution speed probe.
Described torsional oscillation test and analytic system, wherein, described data collecting card is the multi-channel data acquisition card.
Described torsional oscillation test and analytic system, wherein, described test and analysis module can be loaded among the described RAM, and are carried out by described CPU.
Described torsional oscillation test and analytic system, wherein, the operational factor of described data collecting card comprises sampling rate, sampling channel, device number, buffer size.
Described torsional oscillation test and analytic system, wherein, described data analysis unit utilizes digital filtering and fast fourier transform that described time domain dynamic torque signal is handled, to obtain the frequency spectrum of dynamic torque signal.
The test macro that torsional oscillation test of the present utility model is compared in the past with analytic system is compared, it can satisfy the on-the-spot test requirement of any occasion, fast, realize the nearly function of steady state test, unstable state test and the data recording of 16 passages easily, and the simulating signal analysis that its numerical analysis function is compared in the past is quick, accurate, the measurement of the torsional oscillation axle system of be suitable at a high speed, frequency is very complicated, and provide powerful on-the site analysis and result to show.Test macro part of the present utility model can adopt notebook computer, and volume is light and handy, and is easy to carry, is fit to various test environments.
Description of drawings
Below in conjunction with the drawings and specific embodiments feature and advantage of the present utility model are described, wherein:
Fig. 1 is the structured flowchart of test of the utility model torsional oscillation and analytic system embodiment;
Fig. 2 is the flow chart of steps of middle data record unit embodiment illustrated in fig. 1;
Fig. 3 is the flow chart of steps of middle data analysis unit embodiment illustrated in fig. 1;
Fig. 4 is the middle flow chart of steps of display unit as a result embodiment illustrated in fig. 1.
Embodiment
See also Fig. 1, an embodiment of test of the utility model torsional oscillation and analytic system comprises test macro 10, data collecting card 11, signal conditioner 12 and torsional oscillation sensor 13.Wherein torsional oscillation sensor 13 is located at axle to be measured and is fastened, and being used to obtain axle is tach signal, and is connected on the data collecting card 11 by signal conditioner 12, with the tach signal of output shaft system.Torsional oscillation sensor 13 can be made of contact photoelectric encoder or contactless passive revolution speed probe.Signal conditioner 12 is used for reducing interference.Data collecting card 11 is a multichannel high performance signal collection and sampling module, and it has nearly 16 sampling channels, and sample frequency is up to 500kHz, and data precision is the 16bit-24bit data bit, can carry out high speed, accurate data acquisition.Data collecting card 11 is connected with test macro 100, it is provided the digital tach signal after the sampling.
Test and analysis module 106 are stored in the storer 103, and can be loaded among the RAM 104, are carried out by CPU 102, in order to the tach signal of being gathered is analyzed.This test and analysis module 106 be based on a kind of virtual instrument platform, and LABVIEW for example, this virtual instrument platform be the specialized function of traditional instrument and panel control software implementation, and merge with computing machine, and patterned virtual instrument interface is provided.Test and analysis module 106 comprise data record unit 107, data analysis unit 108 and display unit 109 as a result.Wherein:
Now in conjunction with the workflow of flow chart of steps shown in Figure 3 explanation data analysis unit 108, in step S20, data analysis unit 108 is carried out the parameter setting, comprises the filename that data routing, data is set preserves, sensor resolution, sampling rate etc.Read designated data files (S21) subsequently, and video data file (step S22).According to the suitable data section of selecting (S23), data analysis unit 108 is carried out data analysis, promptly calculates rotating speed amplitude α
m, filtering, the FFT computing is also done 4-8 time on average, to obtain more accurate α
mAnd spectrum value (S24), on display device 111, show (S25), and preserve α
mAnd spectrum value (S26), withdraw from data analysis (S27) at last.
Now the workflow of display unit 109 as a result is described, in step S30, carries out the parameter setting, set the filename of result data path, result data, i.e. α in conjunction with flow chart of steps shown in Figure 4
mAnd the file at spectrum value place.Display unit 109 reads result data files (S31) in view of the above as a result, is used to show the three-dimensional spectrum system of battle formations, spectrogram, order figure (S32).By the three-dimensional spectrum system of battle formations, can tentatively determine the twisting vibration of measured axis system, calculate the maximum torsional angle of shaft system, the maximum stress of shaft part according to spectrogram, order figure etc. again, and with the calculated description of Theoretical Calculation relatively, confirm axle is whether parameter meets corresponding standard (S33), withdraws from display unit (S34) as a result at last.
By above design, torsional oscillation test of the present utility model and analytic system can satisfy the on-the-spot test requirement of any occasion, fast, realize the nearly function of steady state test, unstable state test and the data recording of 16 passages easily, and the simulating signal analysis that its numerical analysis function is compared in the past is quick, accurate, the measurement of the torsional oscillation axle system of be suitable at a high speed, frequency is very complicated, and provide powerful on-the site analysis and result to show.Its volume is light and handy, and is easy to carry, is fit to various test environments.
Claims (4)
1. a torsional oscillation is tested and analytic system, be used to test the twisting vibration of axle system, it is characterized in that, comprise: a test macro, the data collecting card that is connected with this test macro, with the signal conditioner of this data acquisition card connection and be located at axle to be measured and fasten the torsional oscillation sensor that output terminal is connected with this signal conditioner;
Described test macro comprises CPU and the storer that is connected with this CPU, RAM, capture card interface and test and analysis module, and this capture card interface also is connected to described data collecting card, and this test and analysis module comprise:
Data record unit is used to be provided with the operational factor of described data collecting card, obtains the time domain dynamic torque signal, and the line data of going forward side by side shows and data are saved as data file;
Data analysis unit, read and the processing said data file in the time domain dynamic torque signal, obtaining the dynamic torque signal frequency spectrum, and show and the result saved as result data files;
Display unit reads described result data files as a result, shows three-dimensional the spectrum system of battle formations, spectrogram and order figure that should result data files.
2. torsional oscillation test as claimed in claim 1 and analytic system is characterized in that, described torsional oscillation sensor is made of contact photoelectric encoder or contactless passive revolution speed probe.
3. torsional oscillation test as claimed in claim 1 and analytic system is characterized in that described data collecting card is the multi-channel data acquisition card.
4. torsional oscillation test as claimed in claim 1 and analytic system is characterized in that described test and analysis module can be loaded among the described RAM, and are carried out by described CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620043471 CN200982888Y (en) | 2006-06-30 | 2006-06-30 | Wring vibration test and analysis system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620043471 CN200982888Y (en) | 2006-06-30 | 2006-06-30 | Wring vibration test and analysis system |
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| CN200982888Y true CN200982888Y (en) | 2007-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620043471 Expired - Fee Related CN200982888Y (en) | 2006-06-30 | 2006-06-30 | Wring vibration test and analysis system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709994B (en) * | 2009-12-08 | 2011-04-20 | 哈尔滨工程大学 | Method for measuring low rotating speed shafting torsional vibration |
| CN103048105A (en) * | 2012-12-21 | 2013-04-17 | 湖南涉外经济学院 | Shaft system torsional vibration testing device for parallel hybrid power system of engineering machine |
| CN105092237A (en) * | 2015-09-16 | 2015-11-25 | 四川膨旭科技有限公司 | Automobile magneto-rheological damper detection system |
| CN109357745A (en) * | 2018-10-24 | 2019-02-19 | 重庆长安汽车股份有限公司 | A kind of automobile driving axle twisting vibration test macro and method |
| CN109974831A (en) * | 2019-04-10 | 2019-07-05 | 南京研旭电气科技有限公司 | A kind of torsional vibration signals generator of m-Acetyl chlorophosphonazo containing time-varying |
| CN111380603A (en) * | 2018-12-29 | 2020-07-07 | 上海齐耀系统工程有限公司 | Torsional vibration monitoring device for diesel engine |
| CN113532891A (en) * | 2021-06-16 | 2021-10-22 | 武汉理工大学 | Synchronous measurement method for rotating speed, torsional vibration and torque signals at two ends of wheel shaft |
-
2006
- 2006-06-30 CN CN 200620043471 patent/CN200982888Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709994B (en) * | 2009-12-08 | 2011-04-20 | 哈尔滨工程大学 | Method for measuring low rotating speed shafting torsional vibration |
| CN103048105A (en) * | 2012-12-21 | 2013-04-17 | 湖南涉外经济学院 | Shaft system torsional vibration testing device for parallel hybrid power system of engineering machine |
| CN103048105B (en) * | 2012-12-21 | 2015-10-28 | 湖南涉外经济学院 | Parallel engineering machinery hybrid power system shafting torsional oscillation proving installation |
| CN105092237A (en) * | 2015-09-16 | 2015-11-25 | 四川膨旭科技有限公司 | Automobile magneto-rheological damper detection system |
| CN109357745A (en) * | 2018-10-24 | 2019-02-19 | 重庆长安汽车股份有限公司 | A kind of automobile driving axle twisting vibration test macro and method |
| CN111380603A (en) * | 2018-12-29 | 2020-07-07 | 上海齐耀系统工程有限公司 | Torsional vibration monitoring device for diesel engine |
| CN109974831A (en) * | 2019-04-10 | 2019-07-05 | 南京研旭电气科技有限公司 | A kind of torsional vibration signals generator of m-Acetyl chlorophosphonazo containing time-varying |
| CN113532891A (en) * | 2021-06-16 | 2021-10-22 | 武汉理工大学 | Synchronous measurement method for rotating speed, torsional vibration and torque signals at two ends of wheel shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20120630 |