CN108760358A - A kind of ice and snow wind tunnel system for rail vehicle truck - Google Patents

A kind of ice and snow wind tunnel system for rail vehicle truck Download PDF

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Publication number
CN108760358A
CN108760358A CN201810885182.3A CN201810885182A CN108760358A CN 108760358 A CN108760358 A CN 108760358A CN 201810885182 A CN201810885182 A CN 201810885182A CN 108760358 A CN108760358 A CN 108760358A
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China
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snow
ice
air duct
bogie
recycling
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CN201810885182.3A
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CN108760358B (en
Inventor
高广军
梁习锋
刘堂红
杨明智
伍钒
王家斌
张琰
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Central South University
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Central South University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/08Railway vehicles
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M9/00Aerodynamic testing; Arrangements in or on wind tunnels
    • G01M9/02Wind tunnels
    • G01M9/04Details

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  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Abstract

The invention discloses a kind of ice and snow wind tunnel systems for rail vehicle truck, include the experimental system of refrigeration storage system and setting in the inner, experimental system includes the roadbed model for placement vehicle body Model, the ice and snow conveying device for driving the driving device of the wheel of bogie on car body model and for blowing ice and snow to bogie, and the output end of ice and snow conveying device blows ice and snow along roadbed model to bogie.The present invention can be used for studying the high-speed low temperature flow field characteristic in rail traffic vehicles bogie region, under the rotation operating mode that the air velocity of bogie and front mixing snow grain matches, winter sports, the phase transition process for simulating bogie region, specify the mechanism of bogie region accumulated snow ice formation issues.

Description

A kind of ice and snow wind tunnel system for rail vehicle truck
Technical field
It is turned to the present invention relates to rail vehicle technical field more particularly to a kind of high-speed low temperature, for studying rail vehicle The ice and snow wind tunnel system of frame region low temperature fluid field characteristic.
Background technology
Bullet train when snowy day is run, accumulated snow on circuit since the influence of bogie region flow-disturbing can be rolled-up, into Enter train bogie region and forms accumulated snow, accumulated ice.The components such as bogie region traction electric machine, gear-box, brake apparatus For heat generating components, heat melts rapidly accumulated snow, and the flash freeze in strong cold air of the liquid water after thawing is attached to bogie Other equipment surface causes to make wherein the accumulated snow for being deposited in bogie region melts on heat generating components such as brake apparatus, freezes Dynamic or alleviation action failure, causes to seriously affect to safe train operation, and gently then train is forced fall-back or stoppage in transit, it is heavy then Train may be caused the safety accidents such as to derail, topple, therefore the research that freezes of the anti-accumulated snow of high-speed train bogie is extremely urgent.For Snow dritf problem is currently available that research method is wind and snow two phase flow wind tunnel test.Since snow particle does not follow similarity criterion, wind Full-scale bogie must be used in the experiment of hole, and cryonetic wind tunnel size cannot meet full-scale bogie wind both at home and abroad at present Requirement of experiment is avenged, existing cryonetic wind tunnel lacks the driving device of rail vehicle truck wheel pair in addition, cannot simulate wheel to rotation Influence to bogie region flow field, snow Particles Moving track and brake pad water dumping track.Therefore, it is suitable for rail traffic The research and development of bogie of car low temperature accumulated snow icing experiment porch are urgently carried out.
Invention content
Present invention aims at provide a kind of high-speed low temperature flow field characteristic can be used for studying rail traffic vehicles bogie Wind tunnel test system, to solve the above problems.
To achieve the above object, the invention discloses a kind of ice and snow wind tunnel systems for rail vehicle truck, including Refrigeration storage system and setting experimental system in the inner, the experimental system include for placement vehicle body Model roadbed model, use It is defeated in the driving device of the wheel of bogie on the driving car body model and the ice and snow for blowing ice and snow to the bogie Device, the output end of the ice and snow conveying device is sent to blow ice and snow to the bogie along the roadbed model.
Further, the ice and snow conveying device includes ice and snow conveying air duct and artificial snow-making system, and the ice and snow conveys air duct It is inside provided with eruption wind turbine, the artificial snow-making system includes snowmaker, and the ice and snow that the snowmaker is manufactured is transported to the ice The front of the eruption wind turbine in snow conveying air duct.
Further, the junction in the snowmaker and the ice and snow conveying air duct be provided with penetrate into from the top down it is described Ice and snow conveys multiple transmission worm screws in air duct, and the transmission worm screw is along vertical equal with the ice and snow conveying conveying direction in air duct The ice and snow that the snowmaker generates is evenly supplied to the front end of the eruption wind turbine by cloth, the transmission worm screw.
Further, the ice and snow conveying device further includes recycling air duct for recycling the ice and snow of ice and snow, and the ice and snow returns It calls prisoners in after letting them out for exercise and the both ends of the car body model is interconnected and be respectively arranged at ice and snow conveying air duct, in ice and snow recycling air duct It is provided with the recycling wind turbine for aspirating recycling ice and snow.
Further, the delivery outlet in ice and snow conveying air duct is to cover gap between the car body model and roadbed model Rectangular output orifice, and ice and snow conveying air duct to its delivery outlet in outer diameter reduce necking setting.
Further, the company in refrigeration storage system inner top is arranged by one with ice and snow conveying air duct for the ice and snow recycling air duct It gives a dinner for a visitor from afar connection, ice and snow recycling is additionally provided with below the ice and snow recycling air duct and the corner of connection air duct connection Storehouse, the recycling wind turbine are set between the ice and snow recovery bin and connection air duct, and the ice and snow recovery bin passes through a cleaning snail Bar is connect with the artificial snow-making system.
Further, the driving device includes two groups of driving wheels pair, the rail of the driving wheel pair and the roadbed model Road is aligned, and the wheel of the car body model is set to driving wheel to upper, so that the driving wheel rotates synchronously band motor car wheel.
Further, the roadbed model and driving device are arranged at one can pass in and out the movement of the refrigeration storage system automatically On platform, the refrigeration storage system is provided with the mobile library door for mobile platform disengaging, is arranged on the mobile library door useful In being provided with observation window on the maintenance library door of experimenter's disengaging, the maintenance library door, the observation window is provided with double-deck organic Glass is coated with low temperature anti misting materials layer on the organic glass on the inside of refrigeration storage system.
Further, the car body model and the practical car body of roadbed model reference, practical roadbed 1:1 setting.
Further, the output wind speed in ice and snow conveying air duct is up to 56m/s, the minimum set of the refrigeration storage system Temperature is -25 DEG C, and the eruption wind turbine and recycling wind turbine start to rotate before refrigeration storage system refrigeration.
Compared with the prior art, the advantages of the present invention are as follows:
The present invention can be used for studying the high-speed low temperature flow field characteristic in rail traffic vehicles bogie region, in bogie with before The rotation operating mode that the air velocity of side's mixing snow grain matches is descended, and the winter sports in simulation bogie region, phase transition process are clear The mechanism of bogie region accumulated snow ice formation issues, meanwhile, high-speed low temperature ice and snow wind tunnel system of the invention, can partial simulation it is true Flow field characteristic of the full scale bogie model under high-speed low temperature environment is regulating and controlling temperature, wet by the refrigeration of low-temperature cold store The experimental enviroments such as degree, while high-speed fan is run in test section front and rear sides, manufacture recycles high-speed flow, and outside external freezer Ice and snow is conveyed, is mixed into high-speed flow, the wind and snow environment in simulation bogie region.
Below with reference to accompanying drawings, the present invention is described in further detail.
Description of the drawings
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the overall plan of the disclosed ice and snow wind tunnel system for rail vehicle truck of the preferred embodiment of the present invention Axonometric schematic diagram;
Fig. 2 is the test principle of the disclosed ice and snow wind tunnel system for rail vehicle truck of the preferred embodiment of the present invention Schematic diagram;
Fig. 3 is the pilot system of the disclosed ice and snow wind tunnel system for rail vehicle truck of the preferred embodiment of the present invention The axonometric schematic diagram of (being free of artificial snow-making system);
Fig. 4 is the mobile platform of the disclosed ice and snow wind tunnel system for rail vehicle truck of the preferred embodiment of the present invention Pass in and out wind-tunnel schematic diagram;
Fig. 5 is the bogie mould of the disclosed ice and snow wind tunnel system for rail vehicle truck of the preferred embodiment of the present invention Quasi- region axonometric schematic diagram;
Fig. 6 is the pilot system of the disclosed ice and snow wind tunnel system for rail vehicle truck of the preferred embodiment of the present invention The axonometric schematic diagram of (including artificial snow-making system).
Marginal data:
1, refrigeration storage system;2, car body model;3, roadbed model;4, bogie;5, ice and snow conveys air duct;6, artificial snow-making system; 7, wind turbine is erupted;8, snowmaker;9, worm screw is transmitted;10, ice and snow recycles air duct;11, wind turbine is recycled;12, rectangular output orifice;13, Connect air duct;14, ice and snow recovery bin;15, worm screw is cleared up;16, driving wheel pair;17, track;18, mobile platform;19, mobile library Door;20, observation window;22, hatch door is safeguarded;23, clear the snow hatch door;24, control room;25, compressor;26, maintenance library door;27, it drains Pipe;28, wind-tunnel bearing;29, wheel;30, ice and snow is sent into mouth;31, ice and snow delivery outlet.
Specific implementation mode
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims Implement with the multitude of different ways of covering.
As shown in figs 1 to 6, the invention discloses a kind of ice and snow wind tunnel system for rail vehicle truck, including it is cold Library system 1 (has both refrigeration, adjusts the multiple functions such as humidity, illumination, cooling compressor 25 is mounted on the outer of refrigeration storage system 1 On wall) and setting experimental system (control that each test parameters is completed by control room 24) in the inner, wherein refrigeration storage system 1 is the running environment construction main body of entire wind tunnel test system, on the one hand the place as experiment, main experimental instrument and equipment Be placed in wherein be entire pilot system carrier;On the other hand, by refrigeration equipment, simulation test environment temperature need to have It is preferable to cool and heat insulation effect, so that 1 inside of refrigeration storage system is formed low temperature environment body that be isolated from external environment, independent System.Wherein, the library main structure body of refrigeration storage system 1 is library plate, selects the additional thermal insulation material of polyurethane material, can form-25-0 DEG C heat-retaining condition, have the characteristics that corrosion-resistant, anti-aging, fire-retardant, nontoxic, lightweight is inexpensive, firm pressure-resistant, reliable beautiful.It is real Check system includes for the roadbed model 3 of placement vehicle body Model 2 (including bogie 4), for driving bogie on car body model 2 The driving device of 4 wheel 29 and ice and snow conveying device for blowing from ice and snow to bogie 4, the output end of ice and snow conveying device Ice and snow is blowed along roadbed model 3 to bogie 4, the snowy day to simulate bullet train runs external environment.Ice and snow conveys Device includes ice and snow conveying air duct 5 and artificial snow-making system 6, and ice and snow conveying is provided with eruption wind turbine 7 in air duct 5, and artificial snow-making system 6 includes Snowmaker 8, snowmaker 8 are arranged in the outside of refrigeration storage system 1, are sent into mouth 30 by the ice and snow on refrigeration storage system 1 and are sent into inside, make The ice and snow that snow machine 8 is manufactured is transported to the front of eruption wind turbine 7 in ice and snow conveying air duct 5.In the present embodiment, snowmaker 8 The junction that air duct 5 is conveyed with ice and snow is provided with the multiple transmission worm screws 9 penetrated into from the top down in ice and snow conveying air duct 5, passes It send the width direction that worm screw 9 conveys air duct 5 along ice and snow to be evenly arranged, when transmitting the startup of worm screw 9, snowmaker 8 can be produced Raw ice and snow is evenly supplied to the top that ice and snow conveys air duct 5 by conveyance conduit, is then conveyed downwards by transmitting worm screw 9, In transmission process, ice and snow is adhered in the gap of the tooth of transmission worm screw 9 and moves downward wherein transmission worm screw 9 first, then sprays The high-pressure blast impact transmission worm screw 9 that wind turbine 7 sprays is sent out, to which it breaks up into uniform wind and snow two-phase by the ice and snow in the gap of tooth Stream avoids passing through easy blocking that conveyance conduit directly transports and the problem of the agglomerating eruption wind turbine of ice and snow 7 can not dispel, works as transmission When worm screw 9 stops, snowmaker 8 and the junction in ice and snow conveying air duct 5 are closed, and the switch for having not only acted as conveying ice and snow is made With, while can also play the role of uniformly conveying.
In the present embodiment, in order to realize that air-flow, ice and snow recycle in the 1 limited space of refrigeration storage system, ice and snow Conveying device further includes recycling air duct 10 for recycling the ice and snow of ice and snow, and ice and snow recycles air duct 10 and ice and snow conveying air duct 5 is mutual The both ends of car body model 2 are connected to and are respectively arranged at, the recycling for aspirating recycling ice and snow is provided in ice and snow recycling air duct 10 Wind turbine 11.
Further, in order to realize ice and snow convey air duct 5 delivery outlet wind and snow can be formed it is steady as actual condition Fixed ice and snow air-flow, the rectangle that ice and snow conveys delivery outlet gap between covering body model 2 and roadbed model 3 in air duct 5 are defeated Outlet 12, is avoided to enable ice and snow air-flow smooth transition inside output gas flow by the rectified action of rectangular output orifice 12 Disorder, and ice and snow conveying air duct 5 to its delivery outlet in outer diameter reduce necking setting, further increase air-flow to play The effect of speed.Meanwhile in the removal process of ice and snow air-flow, ice and snow recycles air duct 10 and is set by one with ice and snow conveying air duct 5 It sets in the connection of the connection air duct 13 of 1 inner top of refrigeration storage system, meanwhile, larger in the ice and snow flowed out in order to avoid bogie 4 (heat generating components of bogie 4 will be changed into the larger ice cube of volume, quality to grain in cold air after ice dissolution, not meet ice Requirement to ice and snow in snow conveying air duct 5) interference, ice and snow recycling air duct 10 and the lower section for connecting the corner that air duct 13 connects It is additionally provided with ice and snow recovery bin 14, ice and snow recovery bin 14 is connect with artificial snow-making system 6 by a cleaning worm screw 15 (from refrigeration storage system 1 Ice and snow delivery outlet 31 export), fall into the bottom of ice and snow recovery bin 14 after the collision of larger ice and snow particle ice and snow recovery bin 14, so Afterwards recycling is realized by clearing up worm screw 15 (part for flood dragon conveying mechanism), meanwhile, pay special attention to, recycling wind turbine 11 is set It sets between ice and snow recovery bin 14 and connection air duct 13, and is not arranged in ice and snow recycling air duct 10, avoid flowing out from bogie 4 Ice cube impact damage recycles the blade of wind turbine 11, for the ease of clearing up ice and snow everywhere, connection air duct 13,14 and of ice and snow recovery bin The hatch door 23 that clears the snow is both provided in ice and snow recycling air duct 10, and by the support of wind-tunnel bearing 28 mounted on the bottom of refrigeration storage system 1 On face.
In the present embodiment, driving device includes two groups of driving wheels pair 16, the track 17 of driving wheel pair 16 and roadbed model 3 To simulate the actual motion situation of bogie 4, the wheel 29 of car body model 2 is set on driving wheel pair 16 for alignment, so as to drive 16 band motor car wheel 29 of driving wheel pair rotates synchronously, to simulate the rotation of wheel 29 of bogie 4 to bogie region flow field, snow particle The influence of movement locus and brake pad water dumping track, you can the actual condition being blown into simulating wheel rotation-ice and snow.
In the present embodiment, roadbed model 3 and driving device are arranged at the movement that one can pass in and out refrigeration storage system 1 automatically and put down On platform 18, refrigeration storage system 1 is provided with the mobile library door 19 passed in and out for mobile platform 18, in the present embodiment, due to testing process The short-term opening and closing of middle mobile library door 19 can cause the destruction of simulated environment in refrigeration storage system 1, so, it is arranged on mobile library door 19 One small-sized maintenance library door 26, convenient for the entrance in the case of not parking during processing experiment.And for convenience of car body model 2 Transport, move, mobile platform 18 be an air cushion conveying device (air cushion conveying device is efficient, at low cost, load capacity is big, Can precise positioning, rotate along any direction, the gentle indoor air pressure of air bag is continuously replenished enough generally up to 0.1~0.35MPa Compressed air air-cushion unit can be made to be kept for 0.025~0.25 millimeter of road clearance), car body model 2 passes in and out refrigeration storage system 1 When, 19 whole lateral translation of mobile library door is opened, and car body model 2, roadbed model 3 are admitted to refrigeration storage system 1 and are tested, together When, safeguard hatch door 22 and drainpipe 27 for being additionally provided on mobile platform 18, the roadbed model of drainpipe 27 and 4 lower section of bogie 3 surface connection, is used for the discharge of 4 ice dissolution water of experimentation trailing bogie.
Meanwhile for the ease of dynamically observing the test result of entire wind tunnel test, observation window is provided on mobile library door 19 20, observation window 20 is provided with the double-deck organic glass, and low temperature anti misting materials are coated on the organic glass of 1 inside of refrigeration storage system Layer, wherein anti misting materials can be the house coating or special anti misting materials coating of routine on the market.
In the present embodiment, since snow particle does not follow similarity criterion, full-scale setting, vehicle must be used in wind tunnel experiment Body Model 2 is with roadbed model 3 with reference to practical car body, practical roadbed 1:1 setting.
In order to be matched with actual condition, the output wind speed in ice and snow conveying air duct 5 is up to 56m/s, refrigeration storage system 1 it is minimum It is -25 DEG C that temperature, which is arranged, and erupts wind turbine 7 and recycling wind turbine 11 and start to rotate before the refrigeration of refrigeration storage system 1, so as to cover Most limit external conditions, in the present embodiment, eruption wind turbine 7 and recycling wind turbine 11 use axial fan, wherein spray Hair wind turbine 7 and the blade attachment for recycling wind turbine 11 are provided with liquid nitrogen cooling system, and the fan blade prevented is in high-speed rotation It is middle to generate big calorimetric, lead to the temperature rise in ice and snow conveying air duct 5 and ice and snow recycling air duct 10.
When the work of the ice and snow wind tunnel system of the present invention, eruption wind turbine 7, recycling wind turbine 11 and driving wheel pair 16 are previously given Original operating state.Control room 24 cools down to entire ice and snow wind tunnel system by control system, eruption wind turbine 7, recycling wind Machine 11 and driving wheel pair 16 cannot stop.When the temperature of refrigeration storage system 1 reaches the rings such as temperature, humidity set by experiment demand After the condition of border, gradually adjustment eruption wind turbine 7, recycling wind turbine 11 and 16 rotating speed of driving wheel pair extremely test demand rotating speed.At this point, turning to Heat generating device on associated components on frame 4 is started to work.After the completion of preparation, transmission worm screw 9 starts rotation work, uniformly The ice and snow that continuously snowmaker 8 is generated is sent into ice and snow conveying air duct 5, at this point, ice and snow is blowed to bogie 4 by eruption wind turbine 7 L-G simulation test is proceeded by, the recycling wind turbine 11 at rear recycles the ice and snow for flowing out bogie 4, the ice and snow of a part of larger particles It is fallen after colliding the avoiding of ice and snow recovery bin 14, another part is recycled, lighter weight ice and snow passes through connection Air duct 13 is transmitted back to ice and snow conveying air duct 5, and realization recycles, and has saved the energy of entire wind tunnel system.Meanwhile operating personnel Test situation can be observed by the antifog glass of mobile library door 19, until completing the total Test mistake of high-speed low temperature ice and snow stream Journey.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of ice and snow wind tunnel system for rail vehicle truck, which is characterized in that including refrigeration storage system (1) and be set to Experimental system in it, the experimental system include for the roadbed model (3) of placement vehicle body Model (2), described for driving The driving device of the wheel (29) of bogie (4) and the ice and snow for blowing ice and snow to the bogie (4) on car body model (2) The output end of conveying device, the ice and snow conveying device blows ice and snow along the roadbed model (3) to the bogie (4) It send.
2. the ice and snow wind tunnel system according to claim 1 for rail vehicle truck, which is characterized in that the ice and snow Conveying device includes ice and snow conveying air duct (5) and artificial snow-making system (6), and eruption wind turbine is provided in ice and snow conveying air duct (5) (7), the artificial snow-making system (6) includes snowmaker (8), and it is defeated that the ice and snow that the snowmaker (8) is manufactured is transported to the ice and snow The front of the eruption wind turbine (7) in air delivery duct (5).
3. the ice and snow wind tunnel system according to claim 2 for rail vehicle truck, which is characterized in that the artificial snow-making The junction of machine (8) and ice and snow conveying air duct (5), which is provided with, to be penetrated into from the top down in ice and snow conveying air duct (5) Multiple transmission worm screws (9), the transmission worm screw (9) is along vertical with the ice and snow conveying conveying direction of air duct (5) uniformly distributed, institute State the front end that the ice and snow that the snowmaker (8) generates is evenly supplied to the eruption wind turbine (7) by transmission worm screw (9).
4. the ice and snow wind tunnel system according to claim 2 for rail vehicle truck, which is characterized in that the ice and snow Conveying device further includes recycling air duct (10) for recycling the ice and snow of ice and snow, and ice and snow recycling air duct (10) conveys wind with ice and snow Road (5) is interconnected and is respectively arranged at the both ends of the car body model (2), and setting is useful in ice and snow recycling air duct (10) In the recycling wind turbine (11) of suction recycling ice and snow.
5. the ice and snow wind tunnel system according to claim 2 for rail vehicle truck, which is characterized in that the ice and snow The delivery outlet of conveying air duct (5) is the rectangular output orifice in gap between the covering car body model (2) and roadbed model (3) (12), and ice and snow conveying air duct (5) is arranged to its delivery outlet in the necking that outer diameter reduces.
6. the ice and snow wind tunnel system according to claim 4 for rail vehicle truck, which is characterized in that the ice and snow Air duct (10) are recycled to connect in the connection air duct (13) of refrigeration storage system (1) inner top by a setting with ice and snow conveying air duct (5), It is additionally provided with ice and snow recovery bin below ice and snow recycling air duct (10) and the corner of connection air duct (13) connection (14), the recycling wind turbine (11) is set between the ice and snow recovery bin (14) and connection air duct (13), the ice and snow recycling Storehouse (14) is connect by a cleaning worm screw (15) with the artificial snow-making system (6).
7. according to any ice and snow wind tunnel systems for rail vehicle truck of claim 1-5, which is characterized in that institute Driving device is stated including two groups of driving wheels to (16), the driving wheel is right to (16) and the track (17) of the roadbed model (3) Together, the wheel (29) of the car body model (2) is set to driving wheel on (16), so that the driving wheel is to (16) band motor car wheel (29) it rotates synchronously.
8. the ice and snow wind tunnel system according to claim 7 for rail vehicle truck, which is characterized in that the roadbed Model (3) and driving device are arranged at one and can pass in and out automatically on the mobile platform (18) of the refrigeration storage system (1), the freezer System (1) is provided with the mobile library door (19) passed in and out for the mobile platform (18), is arranged on the mobile library door (19) useful In being provided with observation window (20), the observation window on the maintenance library door (26) of experimenter's disengaging, the maintenance library (26) (20) it is provided with the double-deck organic glass, low temperature anti misting materials layer is coated on the organic glass on the inside of refrigeration storage system (1).
9. the ice and snow wind tunnel system according to claim 1 for rail vehicle truck, which is characterized in that the car body Model (2) is with roadbed model (3) with reference to practical car body, practical roadbed 1:1 setting.
10. the ice and snow wind tunnel system for rail vehicle truck according to claim 4 or 6, which is characterized in that described The output wind speed that ice and snow conveys air duct (5) is up to 56m/s, and the minimum set temperature of the refrigeration storage system (1) is -25 DEG C, and The eruption wind turbine (7) and recycling wind turbine (11) start to rotate before the refrigeration storage system (1) refrigeration.
CN201810885182.3A 2018-08-06 2018-08-06 Ice and snow wind tunnel system for railway vehicle bogie Active CN108760358B (en)

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CN110108436A (en) * 2019-03-22 2019-08-09 上海渤元信息科技有限公司 A kind of automobile frame aerodynamics pilot system and test method
CN111307476A (en) * 2018-12-12 2020-06-19 中车唐山机车车辆有限公司 Railway vehicle bogie area ice and snow test device
CN112880965A (en) * 2021-04-14 2021-06-01 中南大学 Wind and snow separating device of bogie snow icing wind tunnel test system
CN113029612A (en) * 2021-04-14 2021-06-25 中南大学 Bogie rotation test bed of bogie snow icing wind tunnel test system
CN113029610A (en) * 2021-04-14 2021-06-25 中南大学 Snow accumulation and icing wind tunnel test system and test method for railway train bogie
CN113916554A (en) * 2021-10-14 2022-01-11 安徽江淮汽车集团股份有限公司 Snow raising test method and system for vehicle
RU211193U1 (en) * 2021-11-18 2022-05-25 Федеральное автономное учреждение "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФАУ "ЦАГИ") Device for creating a snow-air flow in an aero-cooling tube

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CN113029612A (en) * 2021-04-14 2021-06-25 中南大学 Bogie rotation test bed of bogie snow icing wind tunnel test system
CN113029610A (en) * 2021-04-14 2021-06-25 中南大学 Snow accumulation and icing wind tunnel test system and test method for railway train bogie
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