CN209589414U - Beam wind acts on lower vehicle moving model experiment brake apparatus - Google Patents
Beam wind acts on lower vehicle moving model experiment brake apparatus Download PDFInfo
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- CN209589414U CN209589414U CN201920493869.2U CN201920493869U CN209589414U CN 209589414 U CN209589414 U CN 209589414U CN 201920493869 U CN201920493869 U CN 201920493869U CN 209589414 U CN209589414 U CN 209589414U
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Abstract
The utility model belongs to aerodynamic characteristic wind-tunnel technique field, is related to a kind of lower vehicle moving model experiment brake apparatus of beam wind effect, including wind tunnel laboratory, guide rail, vehicle test model, vehicle test model base and braking section；Wind tunnel laboratory and braking section are then set gradually from preceding；The upper surface of wind tunnel laboratory and braking section is equipped with guide rail；Deceleration device is provided on braking section；Vehicle test model is arranged on guide rail by vehicle test model base；Vehicle test model base drives vehicle test model to move synchronously with vehicle test model base；Vehicle test model base enters braking section, the finally stop motion under the action of deceleration device on braking section after wind tunnel laboratory.The utility model provides a kind of lower vehicle moving model experiment brake apparatus of beam wind effect that can be realized fast and safely brake and can reduce design cost in a very short period of time.
Description
Technical field
The utility model belongs to aerodynamic characteristic wind-tunnel technique field, is related to a kind of brake apparatus, more particularly to a kind of
Beam wind acts on lower vehicle moving model experiment brake apparatus.
Background technique
The traffic safety stability of vehicle is always the major issue of people's extensive concern, high especially for current China
The quick and large-scale development of fast railway, speed are getting faster, and the comfort of operational safety and personnel for vehicle is also got over
Hair receives significant attention.And beam wind for hot-short operation there is major safety risks, at present except installation safeguard measure
Outside, when attacking for high wind, basic using the method stopped transport, this greatly affects the economic development of country and the trip of people
Need, and vehicle on bridge when driving by high wind attack probability it is high, so under strong wind atmosphere vehicle exist
Security study when bridge up train becomes very necessary.
It is mainly physical analogy that beam wind, which acts on lower high speed train-bridge system aerodynamic characteristic research method, at present, and the simulation is main
Dependent on wind tunnel test.For current train-bridge system wind- tunnel investigation, mostly using static method, and this is right
There are still certain deficiencies for actual Simulation of traffic.In order to solve this problem, vehicle moving model experiment is one
The analogy method of a relative efficiency, this method can be with aerodynamic characteristic of the authentic and valid accurate simulating vehicle under beam wind effect.
However vehicle moving model experiment mostly uses greatly the method slowed down over long distances or pulled to make vehicle static from being moved to now, but wind
Hole size is very limited, should guarantee test aerodynamic characteristic obtain suitable environment, guarantee train speed in test again, because
This, which is difficult to realize by these methods, quickly stops vehicle.Therefore how safety and stability by the auto model run at high speed in pole
Short distance completes to brake to become have important problem to be solved with the extremely fast time.
Utility model content
In order to solve the above technical problems in background technology, the utility model provides a kind of in the extremely short time
The interior beam wind that can be achieved fast and safely to brake and can reduce design cost acts on lower vehicle moving model experiment brake apparatus.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of lower vehicle moving model experiment brake apparatus of beam wind effect, the beam wind act on lower vehicle moving model experiment braking
Device includes wind tunnel laboratory, guide rail, vehicle test model, vehicle test model base and braking section；The wind tunnel experiment
Room and braking section are then set gradually from preceding；The upper surface of the wind tunnel laboratory and braking section is equipped with guide rail；Institute
It states and is provided with deceleration device on braking section；The vehicle test model is arranged on guide rail by vehicle test model base；Institute
Stating vehicle test model base drives vehicle test model to move synchronously with vehicle test model base；The vehicle test model
Pedestal enters braking section, the finally stop motion under the action of deceleration device on braking section after wind tunnel laboratory.
Preferably, deceleration device used by the utility model includes polyurethane brake shoes group；The polyurethane brake
Block group is arranged on the guide rail of braking section upper surface；The vehicle test model base and the group friction of polyurethane brake shoes cause vehicle
Test model pedestal is finally stuck on the guide rail of braking section upper surface.
Preferably, polyurethane brake shoes group used by the utility model is one or more groups of, every group of polyurethane brake
Block includes two pieces of polyurethane brake shoes in pairs and being symmetricly set on the guide rail of braking section upper surface；The vehicle test model
Pedestal and the friction of polyurethane brake shoes cause vehicle test model base to be finally stuck on the guide rail of braking section upper surface；It is described
It is discrete between two adjacent groups polyurethane brake shoes group when polyurethane brake shoes group is multiple groups.
Preferably, the surface that polyurethane brake shoes is in contact with vehicle test model base used by the utility model
It is wave-shaped.
Preferably, the outside of guide rail is arranged in by the mounting plate that brakes for polyurethane brake shoes used by the utility model
Edge.
Preferably, deceleration device used by the utility model further includes the guide rail end that braking section upper surface is arranged in
Tail portion buffer stopper；Axis is vertical with axis where guide rail where the tail portion buffer stopper；The tail portion buffer stopper includes by bullet
Property compression buffer board made of shell and filling macromolecule packing material inside housings.
Preferably, being provided on tail portion buffer stopper used by the utility model through air-flow through-hole.
Preferably, vehicle test model base used by the utility model includes longitudinal beam, vehicle bottom head
Baffle, high-strength brake block, derailing embrace rail device, movement idler wheel and vehicle frame bracing structure；The longitudinal beam with
And vehicle frame bracing structure constructs the braced frame to form vehicle test model；The vehicle test model is arranged in support frame
On frame；Vehicle bottom head baffle and high-strength brake block are then successively set on the bottom of braced frame before；Institute
It states derailing armful rail device and movement idler wheel is respectively set on the support frame；The derailing is embraced rail device and is circumferentially positioned at
There is spacing on the outer profile of guide rail and between guide rail；The movement idler wheel is placed in the axial movement on guide rail and along guide rail；Institute
After the vehicle bottom head baffle and high-strength brake block for stating braced frame bottom enter braking section, from it is preceding then successively with subtract
Deceleration device friction in fast section causes vehicle test model base to be finally stuck on the guide rail of braking section upper surface in turn.
Preferably, it further includes setting that beam wind provided by the utility model, which acts on lower vehicle moving model experiment brake apparatus,
Supporting support in the guide rail bottom of braking section upper surface.
Preferably, supporting support used by the utility model include longitudinal rigid support construction bracket and with longitudinal direction
Rigidity supporting structure bracket is connected and forms the vertical rigidity supporting structure branch of frame structure with longitudinal rigid support construction bracket
Frame.
The utility model has the advantages that:
The utility model provides a kind of beam wind and acts on lower vehicle moving model experiment brake apparatus, including wind tunnel laboratory,
Guide rail, vehicle test model, vehicle test model base and braking section；Wind tunnel laboratory and braking section from it is preceding then successively
Setting；The upper surface of wind tunnel laboratory and braking section is equipped with guide rail；Deceleration device is provided on braking section；Vehicle test
Model is arranged on guide rail by vehicle test model base；Vehicle test model base drives vehicle test model and vehicle to try
Model base is tested to move synchronously；Vehicle test model base enters braking section after wind tunnel laboratory, finally on braking section
Deceleration device under the action of stop motion.Beam wind provided by the utility model acts on lower vehicle moving model experiment brake apparatus
The brake block installed on auto model carriage and the braking brake friction material along vehicle forward direction tail end, can make
Auto model is decelerated to stopping by frictional force when travelling to braking section track.It is arranged on vehicle frame on auto model chassis and makes
Dynamic brake block, the braking brake block run through entire vehicle frame.When auto model drives into retaining segment, brake block and friction material phase
It connects, and passes through strong impact, the great decline down of speed is until stop.The utility model can make the auto model of multi-thread operation
Transfer to realize safety arrestment under high-speed case in extremely short distance under strong beam wind, vehicle safety can kept to stop
In the case where guarantee that each system is normal and effectively operating simultaneously, effectively realizing in such a way that high intensity brakes and increases resistance will be horizontal
The hot-short model safety effective brake run at high speed under wind effect, this mode can be conducive to short distance test tracks and set
It sets, design cost can be reduced effectively in conjunction with wind-tunnel by reducing in moment, improved braking safety, effectively successfully realized
Beam wind acts on lower move vehicle model train-bridge system test.The utility model can be such that vehicle transports at a high speed under beam wind effect
When row, fast and effective safety arrestment is realized within several seconds extremely short of the time and will not be to train-bridge system and its affiliated all kinds of
Equipment generates any destruction, and the beam wind of interference acts on lower vehicle aerodynamics characteristics simulation moving model experiment braking method and its braking dress
It sets, the hot-short model safety that beam wind is acted on down and is run at high speed effectively is realized by the method that high-intensitive braking increases resistance
Effective brake, this mode can be conducive to the setting of short distance test tracks.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of braking section used by the utility model；
Fig. 2 is the structural schematic diagram of vehicle test model base used by the utility model；
Fig. 3 is vehicle test model braking section+pedestal structural schematic diagram used by the utility model；
Fig. 4 is the schematic cross-sectional view of vehicle test model base used by the utility model；
Fig. 5 is the schematic cross-sectional view of polyurethane brake shoes used by the utility model；
Fig. 6 is the plan structure schematic illustration of braking section used by the utility model；
Wherein:
1- polyurethane brake shoes；2- longitudinal rigid support construction bracket；The vertical rigidity supporting structure bracket of 3-；4- guide rail；
5- brake mounting plate；The tail portion 6- buffer stopper；7- longitudinal beam；8- vehicle bottom head baffle；9- high-strength brake block；10- is anti-
Rail device is embraced in derailing；11- moves idler wheel；12- vehicle frame bracing structure；13- vehicle test model.
Specific embodiment
The utility model provides a kind of lower vehicle moving model experiment brake apparatus of beam wind effect, and it is dynamic that beam wind acts on lower vehicle
Model test brake apparatus includes wind tunnel laboratory, guide rail 4, vehicle test model 13, vehicle test model base and deceleration
Section；Wind tunnel laboratory and braking section are then set gradually from preceding；The upper surface of wind tunnel laboratory and braking section is equipped with
Guide rail 4；Deceleration device is provided on braking section；Vehicle test model 13 is arranged on guide rail 4 by vehicle test model base；
Vehicle test model base drives vehicle test model 13 to move synchronously with vehicle test model base；Vehicle test model base
Enter braking section, the finally stop motion under the action of deceleration device on braking section after wind tunnel laboratory.
Deceleration device includes polyurethane brake shoes group；Polyurethane brake shoes group is arranged on the guide rail 4 of braking section upper surface；
Vehicle test model base and the group friction of polyurethane brake shoes cause vehicle test model base to be finally stuck in table on braking section
On the guide rail 4 in face.Referring to Fig. 6, polyurethane brake shoes group be it is one or more groups of, every group of polyurethane brake shoes 1 includes pairs of and right
Claim two pieces of polyurethane brake shoes 1 being arranged on the guide rail 4 of braking section upper surface；Vehicle test model base and polyurethane brake
The friction of block 1 causes vehicle test model base to be finally stuck on the guide rail 4 of braking section upper surface；Polyurethane brake shoes group is more
It is discrete between two adjacent groups polyurethane brake shoes group when group.Referring to fig. 4, polyurethane brake shoes 1 and vehicle test model
The surface that pedestal is in contact is wave-shaped；Referring to Fig. 1, the outer of guide rail 4 is arranged in by the mounting plate 5 that brakes in polyurethane brake shoes 1
Edge, deceleration device further include the tail portion buffer stopper 6 that 4 end of guide rail of braking section upper surface is arranged in；Where tail portion buffer stopper 6
Axis is vertical with 4 place axis of guide rail；Tail portion buffer stopper 6 includes the shell made of elastic compression buffer board and is filled in shell
The macromolecule packing material in internal portion is provided with through air-flow through-hole on tail portion buffer stopper 6.
Referring to fig. 2 and Fig. 4, vehicle test model base used by the utility model includes longitudinal beam 7, vehicle bottom
Size portion baffle 8, high-strength brake block 9, derailing embrace rail device 10, movement idler wheel 11 and vehicle frame bracing structure 12；
Longitudinal beam 7 and vehicle frame bracing structure 12 construct the braced frame for forming vehicle test model 13；Vehicle test model
13 settings are on the support frame；Vehicle bottom head baffle 8 and high-strength brake block 9 are then successively set on support frame before
The bottom of frame；Derailing embraces rail device 10 and movement idler wheel 11 is respectively set on the support frame；Derailing embraces rail device 10
It is circumferentially positioned on the outer profile of guide rail 4 and has spacing between guide rail 4；Movement idler wheel 11 is placed on guide rail 4 and along guide rail 4
Axial movement；After the vehicle bottom head baffle 8 and high-strength brake block 9 of braced frame bottom enter braking section, before
Then successively vehicle test model base is caused finally to be stuck in table on braking section in turn with the deceleration device friction on braking section
On the guide rail 4 in face.
Referring to Fig. 1 and Fig. 3, it further includes being arranged in braking section upper surface that beam wind, which acts on lower vehicle moving model experiment brake apparatus,
4 bottom of guide rail supporting support；Supporting support includes longitudinal rigid support construction bracket 2 and supports knot with longitudinal rigid
Structure bracket 2 is connected and forms the vertical rigidity supporting structure bracket 3 of frame structure with longitudinal rigid support construction bracket 2.
Beam wind provided by the utility model acts on lower vehicle moving model experiment brake apparatus, for vehicle mould of running at high speed
The braking of type makes it within several seconds time from stopping is decreased up at a high speed, in the direction of the launch tail end of auto model running track
Retaining segment is set, and retaining segment combination track setting friction resistance material makes auto model when running to this section of track by frictional force
Effect generates enormous impact and stopping of slowing down.Braking brake block is set on the vehicle frame of auto model, and the braking brake module is solid
It is connected on floor underframe for vehicle, when auto model passes through retaining segment, is mutually moved between braking brake block and friction resistance material, generation rubs
It wipes, slow down after braking brake block and friction resistance material are subjected to enormous impact stops braking.In running track direction of the launch tail
Friction resistance material is respectively set on the inside of the retaining segment track of end, friction resistance material is to reach the high-quality barrier material of certain thickness wear-resistant macromolecule
Vehicle bottom head baffle 8, high-strength brake block 9, vehicle bottom head baffle 8 is arranged in the lower part of auto model chassis in material
Setting is in vehicle frame front end, and high-strength brake block 9 is mounted in contacting on chassis with friction resistance material, and friction catch causes model to drop
Speed stops.
Beam wind is acted on by the carried out simulation offer of Central South University's wind tunnel laboratory low speed segment, and brake apparatus is installed on wind-tunnel two
The outside at end is connected with the test section being installed in wind-tunnel.Side uses multiple groups, is spaced, is symmetrically installed frictional resistance retaining segment in orbit
Material, between brake shoes spacing according to the head baffle of carriage frame bottom and brake block impact force size and contact it is successively reasonable
Installation.Friction resistance material is polyurethane brake shoes 1.Friction resistance material is fixed on bottom by high-strength bolt by being installed on the inside of track
On portion's support frame.Vehicle bottom head baffle 8 and high-strength brake block 9 are integrally formed, firm impact resistance.
Beam wind provided by the utility model acts on lower vehicle moving model experiment brake apparatus, two-way split track and rail
The auto model run on road, generates the wind-tunnel of beam wind, the supporting steel frame of supporting track, the bridge mould of two sides on supporting steel frame
Type；Head baffle and brake block are set on auto model carriage, friction resistance material is set on the inside of track, auto model run to
When retaining segment, head baffle and brake block are successively contacted with friction resistance material, and reduction of speed is until stop.Test tracks include that two column are split
Accelerating sections, test section and retaining segment, the retaining segment for the position that is connected with test section, vehicle is arranged in outside wind-tunnel in friction resistance material
The tail end of traffic direction, head baffle and brake block contact after entering retaining segment with friction resistance material.
In the end of retaining segment using setting elastic compression buffer stopper, elastic compression buffer board includes macromolecule filling material
Material, and aperture is carried out to buffer stopper, it is able to carry out gas circulation.The transverse cross wind acts on lower vehicle moving model experiment brake apparatus master
Will using in a short time by impact, rub slow down step by step and brake by the way of stopping realize auto model in several seconds from
High-speed cruising reduction of speed is until stop.The beam wind acts on lower aerodynamic characteristic moving model experiment brake apparatus and is divided into two parts, vehicle bottom
Frame part and retaining segment part, two part phase mutual friction, which are realized, stops braking.The device be for from accelerating sections with pole
High speed drive-by test section enters retaining segment and realizes reduction of speed Brake stop.In the retaining segment track on the outside of the track of wind-tunnel exit
Side installation settings polyurethane brake shoes 1, and auto model bottom of frame leading portion setting head baffle is arranged at head baffle rear
Brake block, vehicle bottom head baffle 8 are in N-shaped, and high-strength brake block 9 is high-intensitive bloom, since the high speed of auto model is transported
Row, head baffle take the lead in contacting with polyurethane brake shoes 1, squeeze, generate powerful impact force and frictional force, make high-speed cruising
The speed of auto model decreases up to stopping.Retaining segment realizes multistage brake by changing polyurethane brake shoes 1, poly- using changing
Size, the spacing of urethane block, which are realized, slows down.Retaining segment starts setting up polyurethane brake shoes 1 outside test chamber, and polyurethane is stopped
Vehicle block 1 carries out spacing according to the pedestal of vehicle and size is arranged, and vehicle can be slided in the last period polyurethane brake shoes 1,
By pine to tightly.While support vehicles rub prevention sliding, rather than an enormous impact is generated, car body is caused to destroy.
Through overtesting, speed is up to several hundred kilometers auto model hourly can be in short distance after retaining segment
Secure parking, on the inside of retaining segment track between 1 group of polyurethane brake shoes between set up eight grades separately and keep suitable interval, reduction of speed with crossing
Parking.Under regular situation, above-mentioned multi-stage speed-reducing group can be completed to slow down and brake, and can be realized auto model and pass through at high speeds
Safe reduction of speed stopping brake after test section, while to prevent auto model from generating braking effect drop because of reasons such as brake shoes losses
When low, actual effect, to prevent the auto model generation that plunges off the tracks from destroying and generate safety accident, macromolecule is set in the tail end of retaining segment
Elastic compression buffer stopper, which will can be spat by setting outer framework cabinet inhales being filled to cabinet for function, and vehicle is high
When speed pours, while safety protection function can be played, the safety and stability of the buffer stopper itself is ensured.To be more convenient vehicle from braking
Section is detached from, and preferentially selection is with ripple glaze section for polyurethane brake shoes 1, since the gap of air causes to enable the vehicle to easily from braking
Section separation, improves conventional efficient.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of beam wind acts on lower vehicle moving model experiment brake apparatus, it is characterised in that: the beam wind acts on lower vehicle dynamic model
Type test brake apparatus includes wind tunnel laboratory, guide rail (4), vehicle test model (13), vehicle test model base and subtracts
Fast section；The wind tunnel laboratory and braking section are then set gradually from preceding；The upper table of the wind tunnel laboratory and braking section
Face is equipped with guide rail (4)；Deceleration device is provided on the braking section；The vehicle test model (13) passes through vehicle test
Model base is arranged on guide rail (4)；The vehicle test model base drives vehicle test model (13) and vehicle test mould
Type pedestal moves synchronously；The vehicle test model base enters braking section after wind tunnel laboratory, finally on braking section
Deceleration device under the action of stop motion.
2. beam wind according to claim 1 acts on lower vehicle moving model experiment brake apparatus, it is characterised in that: the deceleration
Device includes polyurethane brake shoes group；The polyurethane brake shoes group is arranged on the guide rail (4) of braking section upper surface；The vehicle
Test model pedestal and the group friction of polyurethane brake shoes cause vehicle test model base to be finally stuck in braking section upper surface
Guide rail (4) on.
3. beam wind according to claim 2 acts on lower vehicle moving model experiment brake apparatus, it is characterised in that: the poly- ammonia
Ester brake shoes group be it is one or more groups of, every group of polyurethane brake shoes (1) include in pairs and be symmetricly set on braking section upper surface
Two pieces of polyurethane brake shoes (1) on guide rail (4)；The vehicle test model base causes with polyurethane brake shoes (1) friction
Vehicle test model base is finally stuck on the guide rail (4) of braking section upper surface；When the polyurethane brake shoes group is multiple groups,
It is discrete between two adjacent groups polyurethane brake shoes group.
4. beam wind according to claim 3 acts on lower vehicle moving model experiment brake apparatus, it is characterised in that: the poly- ammonia
The surface that ester brake shoes (1) is in contact with vehicle test model base is wave-shaped.
5. beam wind according to claim 4 acts on lower vehicle moving model experiment brake apparatus, it is characterised in that: the poly- ammonia
Outer edge of the ester brake shoes (1) by brake mounting plate (5) setting in guide rail (4).
6. beam wind according to claim 5 acts on lower vehicle moving model experiment brake apparatus, it is characterised in that: the deceleration
Device further includes the tail portion buffer stopper (6) that guide rail (4) end of braking section upper surface is arranged in；Tail portion buffer stopper (6) institute
It is vertical with axis where guide rail (4) in axis；The tail portion buffer stopper (6) include the shell made of elastic compression buffer board with
And the macromolecule packing material of filling inside housings.
7. beam wind according to claim 6 acts on lower vehicle moving model experiment brake apparatus, it is characterised in that: the tail portion
Buffer stopper is provided on (6) through air-flow through-hole.
8. beam wind described in -7 any claims acts on lower vehicle moving model experiment brake apparatus according to claim 1, special
Sign is: the vehicle test model base includes longitudinal beam (7), vehicle bottom head baffle (8), high-strength brake block
(9), derailing embraces rail device (10), movement idler wheel (11) and vehicle frame bracing structure (12)；The longitudinal beam (7) with
And vehicle frame bracing structure (12) building forms the braced frame of vehicle test model (13)；The vehicle test model (13)
Setting is on the support frame；Vehicle bottom head baffle (8) and high-strength brake block (9) are then successively set on from preceding
The bottom of braced frame；The derailing embraces rail device (10) and movement idler wheel (11) is respectively set on the support frame；Institute
Derailing armful rail device (10) is stated to be circumferentially positioned on the outer profile of guide rail (4) and have spacing between guide rail (4)；The movement
Idler wheel (11) is placed on guide rail (4) and the axial movement along guide rail (4)；The vehicle bottom head baffle of the braced frame bottom
(8) and after high-strength brake block (9) enters braking section, from it is preceding then successively with the deceleration device friction on braking section and then cause
It is stuck in vehicle test model base finally on the guide rail (4) of braking section upper surface.
9. beam wind according to claim 8 acts on lower vehicle moving model experiment brake apparatus, it is characterised in that: the beam wind
Acting on lower vehicle moving model experiment brake apparatus further includes the supporting support that guide rail (4) bottom of braking section upper surface is arranged in.
10. beam wind according to claim 9 acts on lower vehicle moving model experiment brake apparatus, it is characterised in that: the branch
Support bracket include longitudinal rigid support construction bracket (2) and be connected with longitudinal rigid support construction bracket (2) and with it is longitudinal rigid
Property support construction bracket (2) formed frame structure vertical rigidity supporting structure bracket (3).
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| CN201920493869.2U CN209589414U (en) | 2019-04-12 | 2019-04-12 | Beam wind acts on lower vehicle moving model experiment brake apparatus |
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|---|---|---|---|
| CN201920493869.2U CN209589414U (en) | 2019-04-12 | 2019-04-12 | Beam wind acts on lower vehicle moving model experiment brake apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959497A (en) * | 2019-04-12 | 2019-07-02 | 中南大学 | Beam wind acts on lower vehicle moving model experiment brake apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959497A (en) * | 2019-04-12 | 2019-07-02 | 中南大学 | Beam wind acts on lower vehicle moving model experiment brake apparatus |
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