CN204330280U - Train parting flow field on-site testing device - Google Patents
Train parting flow field on-site testing device Download PDFInfo
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- CN204330280U CN204330280U CN201520041266.0U CN201520041266U CN204330280U CN 204330280 U CN204330280 U CN 204330280U CN 201520041266 U CN201520041266 U CN 201520041266U CN 204330280 U CN204330280 U CN 204330280U
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Abstract
The utility model is a kind of train parting flow field on-site testing device, comprise be laid in high speed rail train operation track peripheral space and train for testing high speed rail train operation track periphery stream mechanism for testing, for obtain from mechanism for testing blast information electronic type scanning valve system, for receiving information from electronic type scanning valve system and the data acquisition mechanism received and sent messages by wireless signal and the remote control mechanism by wireless signal control data collecting mechanism.According to proving installation feature, assembled good proving installation in advance, and can regulate, ensure the accuracy of on-the-spot location; Solve because of collection in worksite restriction, the wireless operated of development, collection, transport module, realize the wireless collection of teledata, transmission and process.
Description
Technical field
The utility model relates to the technical field of measurement and test of High Speed Railway Trains wind flow field, is specifically related to a kind of train parting flow field on-site testing device.
Background technology
When train parting refers to that train navigates within ground layer at a high speed along ground trapped orbit, drive train ambient atmosphere to move thereupon, form a kind of specific unsteady flo w three-dimensional flow field, also can be described as train and stream.Train Characteristics of Flow Around affects by factors such as train shape, train speed and surrounding natural winds, very complicated.On the one hand, aerodynamic effect makes train parting have a negative impact to train operation itself, as train acts on train body by the pressure wave produced when circuit neighboring buildings or meeting, affects stationarity and the security of train operation; On the other hand, train parting load has a negative impact as wind barrier, contact net etc. or operating personnel to circuit Accessory Members, jeopardizes the personal safety of traffic safety or operating personnel.
For ensureing traffic safety, be necessary to further investigate High-Speed Trains Flow Field Distribution feature.In view of train parting is that complicated three-dimensional non-steady is streamed, very difficult theoretical analysis method is studied, and the research method be comparatively suitable for is field measurement.Minority scholar is tested general fast train parting by anemoscope, but anemoscope volume is comparatively large, and instrument itself can disturb train parting flow field, affects test result precision.In addition, during high-speed railway operational management relevant regulatory requirements train operation, line must not there is people's operation, need to develop a kind of remote controlled collecting method for this reason.
Therefore a kind of train parting flow field on-site testing device is studied for needing the problem of solution badly.
Utility model content
For the defect that prior art exists, the purpose of this utility model is to provide a kind of applied widely, test result train parting flow field on-site testing device accurately.By in advance at track side arrangement train parting measuring point, high-precision wind pressure sensor obtains the wind force distribution of probe by the blast measuring point of the porous probe tails at measuring point place, long-range control method is adopted to carry out remote control measurement to computing machine, and by wirelessly transmitting data, the exclusive data handling procedure of application establishment can be obtained the wind speed profile of measuring point by wind pressure data.Because porous probe to have carried out the demarcation of wind speed and wind angle on a large scale in laboratory, the precision of test result can be ensured.
In order to realize above-mentioned technical purpose, the technical scheme of the utility model patent is: a kind of train parting flow field on-site testing device, comprise be laid in high speed rail train operation track peripheral space and train for testing high speed rail train operation track periphery stream mechanism for testing, for obtain from mechanism for testing blast information electronic type scanning valve system, for receiving information from electronic type scanning valve system and the data acquisition mechanism received and sent messages by wireless signal and the remote control mechanism by wireless signal control data collecting mechanism.Mechanism for testing is distributed in the periphery of the wheelpath of High Speed Railway Trains, and can not have influence on the operation of bullet train, the train can experiencing bullet train periphery in time and accurately streams, and can improve testing precision simultaneously.
Preferably, mechanism for testing comprise the support structure for mechanism for testing support bar, be located on support bar and the reference test bar that streams of train for testing high speed rail train operation track periphery and to be located on reference test bar and for the porous probe of induction air pressure, the afterbody of porous probe is connected to electronic type scanning valve system by piezometric tube.
Preferably, support bar comprises perpendicular strut and hound, and hound skewed horizontal load is on perpendicular strut, and hound and perpendicular strut fix on the ground jointly; Reference test bar is cross bar, and cross bar is connected to perpendicular strut by the level(l)ing mechanism of the horizontal direction for regulating cross bar.
Preferably, level(l)ing mechanism comprises cushion block and trimming bolt.
Preferably, porous probe adopts five-hole probe.
Preferably, cross bar is provided with many, and many cross bars are vertically arranged in parallel, and every root cross bar is provided with multiple porous probe.
Preferably, porous probe is fixed on cross bar by the aluminium block be anchored on cross bar.
Preferably, electronic type scanning valve system comprise for providing the source nitrogen of stable air pressure, be connected to the output terminal of source nitrogen and for the pressure controller controlling output pressure, the gas circuit distribution module of carrying out gas circuit distribution for the gas exported by pressure controller, be used for providing image data, process data and transmit the main frame of data and be used for mechanism for testing, interconnective electronic scanner between main frame and gas circuit distribution module three; Electronic scanner is by piezometric tube connecting test mechanism; Gas circuit distribution module connects main frame; Main frame connection data collecting mechanism.
Preferably, wireless signal adopts 3G wireless signal or 4G wireless signal.
In order to realize above-mentioned technical purpose, another technical scheme of the utility model patent is: a kind of train parting flow field on-the-spot test method, lays the five-hole probe of the blast for receiving blast measuring point place at each blast measuring point place at scene, train shunt field; The afterbody of five-hole probe is connected with piezometric tube, by piezometric tube, the blast that five-hole probe obtains from each blast measuring point is transferred to electronic scanner; Wind pressure data is transferred to data acquisition mechanism by main frame by electronic scanner; Remote control mechanism receives image data and storage data by 3G wireless signal control data collecting mechanism; By data acquisition mechanism, the data gathered are processed and changed, thus obtain the Flow Field Distribution at scene, train parting flow field.
Train parting Flow Field Distribution on-site testing device, comprise the mechanism for testing being directly used in train parting flow-field test, what be connected with mechanism for testing by piezometric tube scans valve system for the electronic type obtaining blast information, in order to the data acquisition mechanism from electronic type scanning valve system obtaining information, in order to the remote control mechanism through 3G network control data collecting mechanism.
Mechanism for testing comprises with thinking that train parting Flow Field Distribution on-site testing device provides the perpendicular strut installing supporting, and each root is erected strut and all fixed on the ground by two hound expansion bolts.Mechanism for testing also comprises the cross bar be connected on perpendicular strut, erects and is connected by iron cushion block between strut with cross bar, regulates the position of iron cushion block thus regulate the level of cross bar by bolt.Mechanism for testing also comprises the five-hole probe be arranged on four cross bars, and five-hole probe is fixed mainly through the aluminium block be anchored on cross bar, and five-hole probe afterbody is connected to electron scanning valve system by piezometric tube.
Electronic type scanning valve system comprises the source nitrogen providing stable air pressure, source nitrogen connects the pressure controller in order to regulate whole system gaseous tension, pressure controller connects the gas circuit distribution module (CPM) playing the effect that gas circuit is distributed, in order to provide collection, process, transmission data main frame and connect all pressure measurement pipelines and the electronic scanner that is connected with main frame with gas circuit distribution module respectively, main frame sends data to data acquisition mechanism.
Train parting testing tool adopts five-hole probe, and instrument small volume, can effectively reduce the interference effect of instrument to air-flow itself, is conducive to the precision improving test result.
Data acquisition mechanism is gathered data by PC, and sends data to remote control mechanism by wireless transmission function.
Remote control mechanism comprises the PC carrying out Long-distance Control, and can carry out the wireless network card of wireless transmission, in order to realize long-range connection, control and operation.
Data acquisition mechanism and remote control mechanism need to carry out network and are connected, and wireless network card is inserted on data acquisition PC, and remote control PC is connected with netting twine.
The quantity of blast measuring point is according to the quantity set of porous probe, and the quantity of pressure transmission pipeline sets accordingly according to blast measuring point quantity, and determines the number of active lanes be connected on electronic scanner.
Mechanism for testing is provided with the movable cushion block of adjustment level, and in conjunction with inclinometer fine adjustment.
The aluminium block of fixing porous probe location has movable bolt, regulates probe location by turning bolt.
Train parting flow field on-the-spot test method, step is as follows:
(1) five-hole probe is fixed on the on-site testing device of train parting flow field, and its afterbody is connected by piezometric tube;
(2) by piezometric tube, the blast at blast measuring point place is transferred to electronic scanner, electronic scanner connects main frame, and main frame sends data to data acquisition mechanism;
(3) remote control mechanism receives image data by 3G wireless signal control data collecting mechanism, realizes the wireless receiving of collection signal, storage;
(4) based on the calibrating parameters of five-hole probe, by the organized data mechanism in data acquisition mechanism, image data is processed, obtain the Flow Field Distribution of train parting.
Advantageous Effects of the present utility model is:
According to proving installation feature, assembled good proving installation in advance, and can regulate, ensure the accuracy of on-the-spot location; Solve because of collection in worksite restriction, the wireless operated of development, collection, transport module, realize the wireless collection of teledata, transmission and process.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the train parting flow field on-site testing device of the utility model embodiment;
Fig. 2 is one of structural representation of the mechanism for testing of the utility model embodiment;
Fig. 3 is the structural representation two of the mechanism for testing of the utility model embodiment;
Fig. 4 is one of the porous probe of the utility model embodiment and the syndeton schematic diagram of cross bar;
Fig. 5 is the porous probe of the utility model embodiment and the syndeton schematic diagram two of cross bar;
Fig. 6 is the porous probe of the utility model embodiment and the syndeton schematic diagram three of cross bar.
Wherein, 1, mechanism for testing; 2, electronic type scanning valve system; 3, data acquisition mechanism; 4, remote control mechanism; 5, porous probe; 6, cross bar; 7, perpendicular strut; 8, electronic scanner; 9, source nitrogen; 10, pressure controller; 11, gas circuit distribution module; 12, main frame; 13, hound; 14, cushion block; 15, aluminium block.
Embodiment
Further illustrating below to the utility model technology contents, but the restriction not to the utility model flesh and blood.
Fig. 1 is the structural representation of the train parting flow field on-site testing device of the utility model embodiment; Fig. 2 is one of structural representation of the mechanism for testing of the utility model embodiment; Fig. 3 is the structural representation two of the mechanism for testing of the utility model embodiment; Fig. 4 is one of the porous probe of the utility model embodiment and the syndeton schematic diagram of cross bar; Fig. 5 is the porous probe of the utility model embodiment and the syndeton schematic diagram two of cross bar; Fig. 6 is the porous probe of the utility model embodiment and the syndeton schematic diagram three of cross bar.
As shown in Figure 1, a kind of train parting flow field on-site testing device of the utility model embodiment, comprise be laid in high speed rail train operation track peripheral space and train for testing high speed rail train operation track periphery stream mechanism for testing 1, for obtain from mechanism for testing 1 blast information electronic type scanning valve system 2, for receiving information from electronic type scanning valve system and the data acquisition mechanism 3 received and sent messages by wireless signal and the remote control mechanism 4 by wireless signal control data collecting mechanism 3.
As shown in Figure 1, Figure 2 and Figure 3, it is also, mechanism for testing 1 comprise the support structure for mechanism for testing 1 support bar, be located on support bar and the reference test bar that streams of train for testing high speed rail train operation track periphery and to be located on reference test bar and for the porous probe 5 of induction air pressure, the afterbody of porous probe 5 is connected to electronic type scanning valve system 2 by piezometric tube.
As shown in Figure 1, Figure 2 and Figure 3, it is also, support bar comprises perpendicular strut 7 and hound 13, and hound 13 skewed horizontal load is on perpendicular strut 7, and hound 13 and perpendicular strut 7 fix on the ground jointly.Reference test bar is cross bar 6, and cross bar 6 is connected to perpendicular strut 7 by the level(l)ing mechanism of the horizontal direction for regulating cross bar 6.
As shown in Figure 1, Figure 2 and Figure 3, it is also, level(l)ing mechanism comprises cushion block 14 and trimming bolt.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, it is also, porous probe 5 adopts five-hole probe.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, it is also, cross bar 6 is provided with many, and many cross bars 6 are vertically arranged in parallel.Every root cross bar 6 is provided with multiple porous probe 5.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, it is also, porous probe 5 is fixed on cross bar 6 by the aluminium block 15 be anchored on cross bar 6.
As shown in Figure 1, it is also, electronic type scanning valve system 2 comprises for providing the source nitrogen 9 of stable air pressure, be connected to the output terminal of source nitrogen 9 and for the pressure controller 10 controlling output pressure, the gas circuit distribution module 11 of carrying out gas circuit distribution for the gas exported by pressure controller 10, be used for providing the main frame 12 of image data, process data and transmission data and be used for mechanism for testing 1, interconnective electronic scanner 8 between main frame 12 and gas circuit distribution module 11 three.Electronic scanner 8 is by piezometric tube connecting test mechanism 1.Gas circuit distribution module 11 connects main frame 12; Main frame 12 connection data collecting mechanism 3.
As shown in Figure 1, it is also, wireless signal adopts 3G wireless signal or 4G wireless signal.
A kind of train parting flow field on-the-spot test method of the utility model embodiment, lays the five-hole probe of the blast for receiving blast measuring point place at each blast measuring point place at scene, train shunt field; The afterbody of five-hole probe is connected with piezometric tube, by piezometric tube, the blast that five-hole probe obtains from each blast measuring point is transferred to electronic scanner 8; Wind pressure data is transferred to data acquisition mechanism 3 by main frame 12 by electronic scanner 8; Remote control mechanism 4 receives image data and storage data by 3G wireless signal control data collecting mechanism 3; By data acquisition mechanism 3, the data gathered are processed and changed, thus obtain the Flow Field Distribution at scene, train parting flow field.
Advantageous Effects of the present utility model is:
1, the detachable adjustment of high-accuracy device, achieves field device Position location accuracy.
According to proving installation feature, assembled good proving installation in advance, and can regulate, ensure the accuracy of on-the-spot location.
2, the small volume of testing tool porous probe, the interference of the stream field of porous probe own is little, can ensure the precision of test result.
Five-hole probe external diameter is generally 34mm, and the external diameter of miniature probe even only has 0.035mm, and small size testing tool can reduce the interference effect of instrument to air-flow itself, is conducive to improving measuring accuracy.
3, wireless operated, collection, transfer function, achieves the possibility of remote collection data.
Because of collection in worksite restriction, the wireless operated of development, collection, transport module, realize the wireless collection of teledata, transmission and process.
During enforcement, a kind of train parting flow field on-site testing device is provided, comprise directly measuring train parting flow field mechanism for testing 1, to be connected with the blast measuring point on mechanism for testing 1 by pressure measurement pipeline and electronic type in order to obtain aerodynamic characteristic information scans valve system 2, connects electronic type scan the data acquisition mechanism 3 of valve system 2, the remote control mechanism 4 in order to remote control data collecting mechanism 3 image data in order to gather aerodynamic information.Receive network interface card by wireless transmission between data acquisition mechanism 3 and remote control mechanism 4 to be interconnected.High-precision test train wind flow field distribution, accurately obtain the flow rate information of each distributed points, according to device characteristic, the utility model proving installation is fixed by angle steel, and there is adjustable cushion block 14, adopt iron block to fix porous probe 5, adopt totally enclosed pressure measurement pipeline, the aerodynamic information recorded can avoid external force to the interference of test result effectively, ensures the measuring accuracy of aerodynamic information.Wireless collection, transfer function, achieve the possibility that remote control test gathers, because of the limitation of site activity scope, the wireless collection of employing, transmission system, realize the wireless collection of blast, transmission and process.
The mechanism for testing 1 in train parting flow field comprises the perpendicular strut 7 for providing supporting for mechanism for testing 1, and each root is erected strut 7 and all fixed on the ground with expansion bolt by two hounds 13.Mechanism for testing 1 also comprises the cross bar 6 be connected on perpendicular strut 7, and the perpendicular iron cushion block (cushion block 14) that passes through between strut 7 with cross bar 6 is connected, and regulates the position of iron cushion block (cushion block 14) thus regulate the level of cross bar 6 by bolt.Mechanism for testing 1 also comprises five-hole probe (porous probe 5) and is arranged on four cross bars 6, it is fixed mainly through the aluminium block 15 be anchored on cross bar 6, and five-hole probe (porous probe 5) afterbody is connected to electronic type scanning valve system 2 by piezometric tube.
Electronic type scanning valve system 2 comprises providing the source nitrogen 9 of stable air pressure, be connected with source nitrogen 9 and in order to regulating the pressure controller 10 of whole system gaseous tension, be connected with pressure controller 10 and the gas circuit distribution module 11 of distributing for gas circuit, the main frame 12 gathering, process, transmit data in order to provide and connect the electronic scanner 8 that all pressure measurement pipelines are also connected with main frame 12 with gas circuit distribution module 11 respectively, main frame 12 sends data to data acquisition mechanism 3.
Data acquisition mechanism 3 is gathered data by PC, and sends data to remote control mechanism 4 by wireless transmission function.
Remote control mechanism 4 comprises PC and carries out Long-distance Control, and can carry out the wireless network card of wireless transmission, in order to realize long-range connection, control, operation.
Remote control mechanism 4 comprises word administration module, screen control module, video communication module, text chat and system control module.
Data acquisition mechanism 3 and remote control mechanism 4 need to carry out network and are connected, and wireless network card is inserted on data acquisition PC, and remote control PC is connected with netting twine.
The quantity of blast measuring point is according to the quantity set of probe, and the quantity of pressure transmission pipeline sets accordingly according to blast measuring point quantity, and determines the number of active lanes be connected on electronic scanner 8.
Mechanism for testing 1 is provided with the movable cushion block 14 of regulating device level, and in conjunction with inclinometer fine adjustment.
The aluminium block 15 of fixing porous probe 5 position has movable bolt, regulates porous probe 5 position by turning bolt.
A kind of method of testing of surveying train parting Flow Field Distribution of concrete enforcement, step is as follows:
(1) five-hole probe (porous probe 5) is fixed on the mechanism for testing 1 in train parting flow field, and its afterbody is connected by piezometric tube;
(2) by piezometric tube, the blast at blast measuring point place is transferred to electronic scanner 8, electronic scanner 8 connects main frame 12, and main frame 12 sends data to data acquisition mechanism 3;
(3) remote control mechanism 4 receives image data by 3G wireless signal control data collecting mechanism 3, realizes the wireless receiving of collection signal, storage;
(4) by the program of special establishment, image data is processed, obtain the Flow Field Distribution of train parting.
As Fig. 1,2, shown in 3, train parting Flow Field Distribution on-the-spot test method, comprises for proving installation provides the perpendicular strut 7 of supporting, cross bar 6 and hound 13, is perpendicularly connected by cushion block 14 between strut 7 with cross bar 6.Five-hole probe is arranged on four cross bars 6, and the aluminium block 15 be anchored on cross bar 6 is fixed.Five-hole probe 5 afterbody is connected to electronic scanner 8 by piezometric tube, what be connected with electronic scanner 8 has gas circuit distribution module 11 and main frame 12, be connected in gas circuit distribution module 11 after the air pressure control that source nitrogen 9 provides by pressure controller 10 is stable, main frame 12 to data acquisition mechanism 3, remote control mechanism 4 is connected with data acquisition mechanism 3 by wireless signal.By data acquisition mechanism 3, the collection signal stored is processed, the speed of each measuring point train parting can be obtained, and then the Flow Field Distribution of whole train parting can be obtained.
The utility model belongs to one of primary study content of project of national nature science fund project (51178471,51322808), for running train aeroperformance and safety traffic provide more accurate wind tunnel test means, thus provide technical support for what guarantee bullet train safe operation.
The foregoing is only preferred embodiment of the present utility model; not thereby protection domain of the present utility model is limited; every equivalent structure transformation utilizing the utility model description to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. a train parting flow field on-site testing device, it is characterized in that, comprise be laid in high speed rail train operation track peripheral space and train for testing high speed rail train operation track periphery stream mechanism for testing (1), for obtain from mechanism for testing (1) blast information electronic type scanning valve system (2), for receiving information from electronic type scanning valve system and the data acquisition mechanism (3) received and sent messages by wireless signal and the remote control mechanism (4) by wireless signal control data collecting mechanism (3).
2. train parting flow field according to claim 1 on-site testing device, it is characterized in that, mechanism for testing (1) comprise the support structure for mechanism for testing (1) support bar, be located on support bar and the reference test bar that streams of train for testing high speed rail train operation track periphery and to be located on reference test bar and for the porous probe (5) of induction air pressure, the afterbody of porous probe (5) is connected to electronic type scanning valve system (2) by piezometric tube.
3. train parting flow field according to claim 2 on-site testing device, it is characterized in that, support bar comprises perpendicular strut (7) and hound (13), hound (13) skewed horizontal load is on perpendicular strut (7), and hound (13) and perpendicular strut (7) fix on the ground jointly; Reference test bar is cross bar (6), and cross bar (6) is connected to perpendicular strut (7) by the level(l)ing mechanism of the horizontal direction for regulating cross bar (6).
4. train parting flow field according to claim 3 on-site testing device, is characterized in that, level(l)ing mechanism comprises cushion block (14) and trimming bolt.
5. train parting flow field according to claim 3 on-site testing device, is characterized in that, porous probe (5) adopts five-hole probe.
6. train parting flow field according to claim 3 on-site testing device, it is characterized in that, cross bar (6) is provided with many, and many cross bars (6) are vertically arranged in parallel, and every root cross bar (6) is provided with multiple porous probe (5).
7. train parting flow field according to claim 3 on-site testing device, is characterized in that, porous probe (5) is fixed on cross bar (6) by the aluminium block (15) be anchored on cross bar (6).
8. train parting flow field according to claim 1 on-site testing device, it is characterized in that, electronic type scanning valve system (2) comprises the source nitrogen (9) for providing stable air pressure, be connected to the output terminal of source nitrogen (9) and the pressure controller (10) for controlling output pressure, gas for being exported by pressure controller (10) carries out the gas circuit distribution module (11) of gas circuit distribution, for providing image data, process data are with the main frame (12) of transmission data and for mechanism for testing (1), interconnective electronic scanner (8) between main frame (12) and gas circuit distribution module (11) three, electronic scanner (8) is by piezometric tube connecting test mechanism (1), gas circuit distribution module (11) connects main frame (12), main frame (12) connection data collecting mechanism (3).
9. train parting flow field according to any one of claim 1 to 8 on-site testing device, is characterized in that, wireless signal adopts 3G wireless signal or 4G wireless signal.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483091A (en) * | 2015-01-18 | 2015-04-01 | 中南大学 | Train airflow field site testing device and method |
| CN105466663A (en) * | 2015-12-09 | 2016-04-06 | 中国航天空气动力技术研究院 | An apparatus for accurately measuring a local air-flow offset angle in a wind tunnel transonic speed test section |
| CN106779148A (en) * | 2016-11-14 | 2017-05-31 | 中南大学 | A kind of method for forecasting wind speed of high speed railway line of multi-model multiple features fusion |
| CN106885683A (en) * | 2017-03-08 | 2017-06-23 | 北京航空航天大学 | A kind of hole steady state pressure probe of hemispherical head 12 for measuring 3 D complex flow field |
| CN109269759A (en) * | 2018-09-11 | 2019-01-25 | 中国空气动力研究与发展中心低速空气动力研究所 | A kind of more equipment synchronization continuous scanning pressure testing method based on udp protocol |
| CN113804397A (en) * | 2021-11-18 | 2021-12-17 | 中国飞机强度研究所 | Open type wind tunnel test flow field uniformity and stability calibration system in closed laboratory |
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2015
- 2015-01-18 CN CN201520041266.0U patent/CN204330280U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483091A (en) * | 2015-01-18 | 2015-04-01 | 中南大学 | Train airflow field site testing device and method |
| CN105466663A (en) * | 2015-12-09 | 2016-04-06 | 中国航天空气动力技术研究院 | An apparatus for accurately measuring a local air-flow offset angle in a wind tunnel transonic speed test section |
| CN105466663B (en) * | 2015-12-09 | 2018-08-07 | 中国航天空气动力技术研究院 | The accurate device for measuring wind-tunnel Transonic Test section local air flow angle of deviation |
| CN106779148A (en) * | 2016-11-14 | 2017-05-31 | 中南大学 | A kind of method for forecasting wind speed of high speed railway line of multi-model multiple features fusion |
| CN106779148B (en) * | 2016-11-14 | 2017-10-13 | 中南大学 | A kind of method for forecasting wind speed of high speed railway line of multi-model multiple features fusion |
| CN106885683A (en) * | 2017-03-08 | 2017-06-23 | 北京航空航天大学 | A kind of hole steady state pressure probe of hemispherical head 12 for measuring 3 D complex flow field |
| CN109269759A (en) * | 2018-09-11 | 2019-01-25 | 中国空气动力研究与发展中心低速空气动力研究所 | A kind of more equipment synchronization continuous scanning pressure testing method based on udp protocol |
| CN113804397A (en) * | 2021-11-18 | 2021-12-17 | 中国飞机强度研究所 | Open type wind tunnel test flow field uniformity and stability calibration system in closed laboratory |
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