CN103090942A - Cantilever type moving train axle load test method and test device thereof - Google Patents
Cantilever type moving train axle load test method and test device thereof Download PDFInfo
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- CN103090942A CN103090942A CN2013100420855A CN201310042085A CN103090942A CN 103090942 A CN103090942 A CN 103090942A CN 2013100420855 A CN2013100420855 A CN 2013100420855A CN 201310042085 A CN201310042085 A CN 201310042085A CN 103090942 A CN103090942 A CN 103090942A
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Abstract
A cantilever type moving train axle load test method is characterized in that two middle axles of four axles on the bottom of a China Railway High Speed (CRH) high speed train model are fixed, one end of a special flat cantilever beam is fixed with the middle fixed axles, the other end of the special flat cantilever beam is connected with the other two axles, the magnitude of axial force can be reflected through a test for the deformation of the cantilever beam, the relative relationships are determined by calibration, the deformation of the cantilever beam is tested through arranging a strain meter, the strain meter is controlled wirelessly to conducts the test, and time travel curves of the moving train axle load is recorded in real time. Through the comparison between the time interval of a left wheel axle load and the time interval of a right wheel axle load, the anti-overturning performance of the CRH high speed train model when the CRH high speed train model moves can be analysed. The cantilever type moving train axle load test method and the test device of the cantilever type moving train axle load provide technical assurance for the experimental study for the aerodynamic performance of 'wind-train-bridge' system of high speed railways.
Description
Technical field
The present invention relates to a kind of running train axle load test system, be specifically related to a kind of cantilevered running train axle load test method and proving installation thereof.
Background technology
The fast development of high-speed railway is the important embodiment that the national economic development, national power strengthen.Though the research of complicated wind environment Train security of operation obtains extensive concern, but only be confined to theoretical analysis and numerical simulation, still lack verification experimental verification, and also rare for High Speed Railway Trains anti-overturning test under the high wind effect specially, and complicacy and the inconvenience of the interior wired test of running train power of wind-tunnel have seriously restricted relevant progress.
Therefore, a kind of novel cantilevered running train axle load test method and proving installation thereof of research become the technical matters that needs to be resolved hurrily.
Summary of the invention
Defective for the prior art existence, the objective of the invention is to propose a kind of cantilevered running train axle load test method and proving installation thereof, according to bullet train (model) characteristics, employing running train axle load test system, adopt wireless collection, transport module, realize wireless collection, transmission and the processing of running train kinetic parameter.
Technical scheme of the present invention is: a kind of cantilevered running train axle load test method, it is characterized in that step is as follows: (1) CRH High Speed Train Models bottom is provided with four axles that are parallel to each other, and two of the centres axle in four axles of CRH High Speed Train Models is fixed on CRH High Speed Train Models bottom; (2) stationary shaft of special flat semi-girder one end with the centre is fixedly connected with, the other end is connected with corresponding outboard shafts; (3) distortion by the test semi-girder reflects axle power size, and the strain deformation size determines by demarcating with axle series of fortified passes system; (4) distortion of semi-girder is tested by arranging strainometer, adopts wireless mode to control strainometer and tests, the heavy time-history curves of real time record running train axle; (5) by the comparison of the heavy time-histories size of left and right wheels axle, analysis and research CRH High Speed Train Models moves the antidumping performance.CRH(ChinaRailways High-speed), namely China Railway High-speed, be the brand name that the Chinese Ministry of Railways sets up Chinese high speed rail system.The CRH motor train unit refers to the new-type train that the compartment is self-powered, adopts the powered distributed design, and train number is front titled with letter " C ", " D ", " G ".The Main Function of demarcating is: (1) determines the input-output relation of instrument or measuring system, gives instrument or measuring system scale division value; (2) determine the static characteristics index of instrument or measuring system; (3) eliminate systematic error, improve together or the correctness of system.In scientific measurement, demarcation is an important step that can not be ignored.
another technical scheme of the present invention is: a kind of cantilevered running train axle load test device, comprise CRH High Speed Train Models and central PC, it is characterized in that, CRH High Speed Train Models bottom is provided with bogie semi-girder device for measuring force, CRH High Speed Train Models inside is provided with strain transducer, dynamic strain indicator, embedded computer and power-supply system, power-supply system is bogie semi-girder device for measuring force, strain transducer, dynamic strain indicator and embedded computer provide power supply, bogie semi-girder device for measuring force connects strain transducer, strain transducer connects dynamic strain indicator, dynamic strain indicator connects embedded computer, be provided with the wireless transmission receiver module on embedded computer, embedded computer is connected with wireless transmission receiver module in central PC by the wireless transmission receiver module, central authorities' PC is connected with timing system, triggering system, calibration system.The CRH High Speed Train Models: the dynamic test object provides mounting test system position and space; Bogie semi-girder device for measuring force: each axle of test train heavy (aerodynamic lift); Strain transducer: the microdeformation of induction dynamometry original paper; Dynamic strain indicator: the tiny signal of strain transducer induction is converted into voltage signal; Embedded computer: the collection storage of signal; Wireless sending module: the data wireless that gathers on train is transferred to wireless receiving module; Wireless sending module: the data of wireless receiving module are passed to central PC; Timing system: the synchronism of guaranteeing each measuring point; Triggering system: the sampling instruction is provided, and indication mechanism begins sampling; Calibration system: the dynamometry size is demarcated; Power-supply system: the power supply that unlimited proving installation on train is provided; Central authorities' PC: receive and the storage of collected signal, and carry out the Treatment Analysis in later stage.
Preferably, bogie semi-girder device for measuring force comprises flat semi-girder and strainometer, and strainometer is arranged on flat semi-girder.
Preferably, the base plate of CRH High Speed Train Models is arranged with four axles that are parallel to each other, two of the centres of four axles axle is fixed on bottom the CRH High Speed Train Models, and flat semi-girder one end is fixedly connected with the stationary shaft of centre, and the other end is connected with corresponding outboard shafts.
Preferably, lay measuring point on the flat semi-girder of CRH High Speed Train Models, be provided with strain transducer or measuring point on measuring point and connect strain transducer.
Preferably, be provided with four measuring points on the flat semi-girder of CRH High Speed Train Models.
Preferably, strain transducer, embedded computer and power-supply system all are arranged in the railway carriage of CRH High Speed Train Models.
Preferably, embedded computer is or/and be equipped with software systems in central PC, and software systems comprise that data acquisition module, data filtering module, data scaling module, data cache module, the same phase module of data, data transmission blocks, data accept module, data disaply moudle, data storage module, data query module, data analysis module, parameter module and operational administrative module are set.Software systems: realize collection, filtering, demarcation, buffer memory, homophase, transmission, reception, demonstration, storage, inquiry, analysis and the management of data.
Preferably, cantilevered running train axle load test device also is provided with debugging apparatus.
Preferably, the transmitting and receiving terminal of wireless transmission receiver module is provided with the hardware encipher device.
Preferably, Mobile portable equipment is connected to the hardware encipher device of cantilevered running train axle load test device by the wireless transmission receiver module, realizes being communicated with of Mobile portable equipment and cantilevered running train axle load test device internal data information.
Preferably, also be provided with switch in cantilevered running train axle load test device, share in order to wireless transmission and network to be provided.Switch: the network wireless transmission is provided.
Useful technique effect of the present invention is:
1, the heavy time-history curves of the axle of test running train, differentiate the security of train operation; According to bullet train (model) characteristics, developed special running train axle load test device.
2, wireless collection, transfer function have been realized the possibility of running train dynamic test; Because of the complicacy of the wired test of running train in wind-tunnel, the wireless collection of development, transport module are realized wireless collection, transmission and the processing of running train kinetic parameter.
Above characteristics are that the experimental study of high-speed railway " wind-Che-bridge " system's aeroperformance provides technique guarantee.
Apparatus and method also can expand to the wireless dynamic test of true train except carrying out " wind-Che-bridge " running train wind tunnel test.
Description of drawings
Fig. 1 is one of structural representation of embodiment of the present invention cantilevered running train axle load test device.
Fig. 2 be embodiment of the present invention cantilevered running train axle load test device structural representation two.
The object of the invention realization, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Concrete a kind of cantilevered running train axle load test method of implementing, step is as follows:
(1) CRH High Speed Train Models bottom is provided with four axles that are parallel to each other, and two of the centres axle in four axles of CRH High Speed Train Models is fixed on CRH High Speed Train Models bottom;
(2) stationary shaft of special flat semi-girder one end with the centre is fixedly connected with, the other end is connected with corresponding outboard shafts;
(3) distortion by the test semi-girder reflects axle power size, and correlationship determines (need to explain) by demarcating;
(4) distortion of semi-girder is tested by arranging strainometer, adopts wireless mode to control strainometer and tests, the heavy time-history curves of real time record running train axle;
(5) by the comparison of the heavy time-histories size of left and right wheels axle, analysis and research CRH High Speed Train Models moves the antidumping performance.
concrete a kind of cantilevered running train axle load test device of implementing, comprise CRH High Speed Train Models 1 and central PC 2, it is characterized in that, CRH High Speed Train Models 1 bottom is provided with bogie semi-girder device for measuring force 3, CRH High Speed Train Models 1 inside is provided with strain transducer 4, dynamic strain indicator 5, embedded computer 6 and power-supply system 7, power-supply system 7 is bogie semi-girder device for measuring force 3, strain transducer 4, dynamic strain indicator 5 and embedded computer 6 provide power supply, bogie semi-girder device for measuring force 3 connects strain transducer 4, strain transducer 4 connects dynamic strain indicator 5, dynamic strain indicator 5 connects embedded computer 6, be provided with wireless transmission receiver module 8 on embedded computer 6, embedded computer 6 is connected by the interior wireless transmission receiver module 8 of wireless transmission receiver module 8 and central PC 2, central authorities' PC 2 is connected with timing system 9, triggering system 10, calibration system 11.
It also is: bogie semi-girder device for measuring force 3 comprises flat semi-girder and strainometer, and strainometer is arranged on flat semi-girder.
It also is: the base plate of CRH High Speed Train Models 1 is arranged with four axles that are parallel to each other, two of the centres of four axles axle is fixed on bottom the CRH High Speed Train Models, flat semi-girder one end is fixedly connected with the stationary shaft of centre, and the other end is connected with corresponding outboard shafts.
It also is: lay measuring point on the flat semi-girder of CRH High Speed Train Models 1, be provided with strain transducer 4 or measuring point on measuring point and connect strain transducer 4.
It also is: be provided with four measuring points on the flat semi-girder of CRH High Speed Train Models 1.
It also is: strain transducer 4, dynamic strain indicator 5, embedded computer 6 and power-supply system 7 all are arranged in the railway carriage of CRH High Speed Train Models 1.
It also is: embedded computer 6 is or/and be equipped with software systems in central PC 2, and software systems comprise that data acquisition module, data filtering module, data scaling module, data cache module, the same phase module of data, data transmission blocks, data accept module, data disaply moudle, data storage module, data query module, data analysis module, parameter module and operational administrative module are set.
It also is: cantilevered running train axle load test device also is provided with debugging apparatus.
It also is: the transmitting and receiving terminal of wireless transmission receiver module 8 is provided with the hardware encipher device.
It also is: Mobile portable equipment is connected to the hardware encipher device of cantilevered running train axle load test device by wireless transmission receiver module 8, realizes being communicated with of Mobile portable equipment and cantilevered running train axle load test device internal data information.
It also is: also be provided with switch in cantilevered running train axle load test device, share in order to wireless transmission and network to be provided.
Fig. 1 is one of structural representation of embodiment of the present invention cantilevered running train axle load test device, Fig. 2 be embodiment of the present invention cantilevered running train axle load test device structural representation two, as Fig. 1, shown in 2, cantilevered running train axle load test device comprises CRH High Speed Train Models 1 and central PC 2, CRH High Speed Train Models 1 bottom is provided with bogie semi-girder device for measuring force 3, CRH High Speed Train Models 1 inside is provided with strain transducer 4, dynamic strain indicator 5, embedded computer 6 and power-supply system 7, power-supply system 7 is bogie semi-girder device for measuring force 3, strain transducer 4, dynamic strain indicator 5 and embedded computer 6 provide power supply, bogie semi-girder device for measuring force 3 connects strain transducer 4, strain transducer 4 connects dynamic strain indicator 5, dynamic strain indicator 5 connects embedded computer 6, be provided with wireless transmission receiver module 8 on embedded computer 6, embedded computer 6 is connected by the interior wireless transmission receiver module 8 of wireless transmission receiver module 8 and central PC 2, central authorities' PC 2 is connected with timing system 9, triggering system 10, calibration system 11, bogie semi-girder device for measuring force 3 comprises flat semi-girder and strainometer, strainometer is arranged on flat semi-girder, the base plate of CRH High Speed Train Models 1 is arranged with four axles that are parallel to each other, two of the centres of four axles axle is fixed on bottom the CRH High Speed Train Models, flat semi-girder one end is fixedly connected with the stationary shaft of centre, the other end is connected with corresponding outboard shafts, lay measuring point on the flat semi-girder of CRH High Speed Train Models 1, be provided with strain transducer 4 or measuring point on measuring point and connect strain transducer 4, be provided with four measuring points on the flat semi-girder of CRH High Speed Train Models 1, strain transducer 4, dynamic strain indicator 5, embedded computer 6 and power-supply system 7 all are arranged in the railway carriage of CRH High Speed Train Models 1, also be provided with switch in cantilevered running train axle load test device, in order to being provided, wireless transmission and network share.
Claims (10)
1. cantilevered running train axle load test method is characterized in that step is as follows:
(1) CRH High Speed Train Models bottom is provided with four axles that are parallel to each other, and two of the centres axle in four axles of CRH High Speed Train Models is fixed on CRH High Speed Train Models bottom;
(2) stationary shaft of special flat semi-girder one end with the centre is fixedly connected with, the other end is connected with corresponding outboard shafts;
(3) distortion by the test semi-girder reflects axle power size, and the strain deformation size determines by demarcating with axle series of fortified passes system;
(4) distortion of semi-girder is tested by arranging strainometer, adopts wireless mode to control strainometer and tests, the heavy time-history curves of real time record running train axle;
(5) by the comparison of the heavy time-histories size of left and right wheels axle, analysis and research CRH High Speed Train Models moves the antidumping performance.
2. cantilevered running train axle load test device, comprise CRH High Speed Train Models and central PC, it is characterized in that, CRH High Speed Train Models bottom is provided with bogie semi-girder device for measuring force, CRH High Speed Train Models inside is provided with strain transducer, dynamic strain indicator, embedded computer and power-supply system, power-supply system is bogie semi-girder device for measuring force, strain transducer, dynamic strain indicator and embedded computer provide power supply, bogie semi-girder device for measuring force connects strain transducer, strain transducer connects dynamic strain indicator, dynamic strain indicator connects embedded computer, be provided with the wireless transmission receiver module on embedded computer, embedded computer is connected with wireless transmission receiver module in central PC by the wireless transmission receiver module, central authorities' PC is connected with timing system, triggering system, calibration system.
3. cantilevered running train axle load test device according to claim 1, it is characterized in that: bogie semi-girder device for measuring force comprises flat semi-girder and strainometer, and strainometer is arranged on flat semi-girder.
4. cantilevered running train axle load test device according to claim 3, it is characterized in that: the base plate of CRH High Speed Train Models is arranged with four axles that are parallel to each other, two of the centres of four axles axle is fixed on bottom the CRH High Speed Train Models, flat semi-girder one end is fixedly connected with the stationary shaft of centre, and the other end is connected with corresponding outboard shafts.
5. cantilevered running train axle load test device according to claim 4, is characterized in that: lay measuring point on the flat semi-girder of CRH High Speed Train Models, be provided with strain transducer or measuring point on measuring point and connect strain transducer.
6. cantilevered running train axle load test device according to claim 4, is characterized in that: be provided with four measuring points on the flat semi-girder of CRH High Speed Train Models.
7. the described cantilevered running train of arbitrary claim axle load test device according to claim 2 to 6, it is characterized in that: strain transducer, embedded computer and power-supply system all are arranged in the railway carriage of CRH High Speed Train Models.
8. the described cantilevered running train of arbitrary claim axle load test device according to claim 2 to 6, it is characterized in that: embedded computer is or/and be equipped with software systems in central PC, and software systems comprise that data acquisition module, data filtering module, data scaling module, data cache module, the same phase module of data, data transmission blocks, data accept module, data disaply moudle, data storage module, data query module, data analysis module, parameter module and operational administrative module are set.
9. the described cantilevered running train of arbitrary claim axle load test device according to claim 2 to 6, it is characterized in that: cantilevered running train axle load test device also is provided with debugging apparatus.
10. the described cantilevered running train of arbitrary claim axle load test device according to claim 2 to 6, it is characterized in that: the transmitting and receiving terminal of wireless transmission receiver module is provided with the hardware encipher device; Perhaps Mobile portable equipment is connected to the hardware encipher device of cantilevered running train axle load test device by the wireless transmission receiver module, realizes being communicated with of Mobile portable equipment and cantilevered running train axle load test device internal data information; Perhaps also be provided with switch in cantilevered running train axle load test device, share in order to wireless transmission and network to be provided.
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| CN111022386A (en) * | 2019-12-24 | 2020-04-17 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Detection method of wound energy accumulator |
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Application publication date: 20130508 |