CN104458196B - Shutter type mechanism for generating horizontal shear airflow in conventional wind tunnel in simulation mode and method - Google Patents
Shutter type mechanism for generating horizontal shear airflow in conventional wind tunnel in simulation mode and method Download PDFInfo
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- CN104458196B CN104458196B CN201410605649.6A CN201410605649A CN104458196B CN 104458196 B CN104458196 B CN 104458196B CN 201410605649 A CN201410605649 A CN 201410605649A CN 104458196 B CN104458196 B CN 104458196B
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Abstract
The invention relates to a shutter type mechanism for generating horizontal shear airflow in a conventional wind tunnel in a simulation mode and a method. The shutter type mechanism for generating the horizontal shear airflow in the conventional wind tunnel in the simulation mode comprises a fixed support fixedly connected to the ground and a windward plate body which is installed on the fixed support in the vertical direction and used for converting horizontal airflow into the horizontal shear airflow, the windward plate body is arranged on the windward face of a high-speed railway bridge and provided with a plurality of ventilating holes used for ventilation, and a driving mechanism is arranged on the side of the windward plate body and used for driving the windward plate body to move in the vertical direction and controlling the moving speed of the windward plate body. The horizontal shear airflow different in flow rate is achieved, and therefore the simulation requirements under various conditions are met.
Description
Technical field
The present invention relates to shear simulation of air flow technical field is and in particular to one kind is in conventional wind-tunnel middle mold in conventional wind-tunnel
Intend producing the shutter mechanism that horizontal cutting becomes air-flow；Also relate to produce by shutter mechanism analog in a kind of routine wind-tunnel
The method that horizontal cutting becomes air-flow.
Background technology
Shear air-flow refers to a kind of air-flow phenomenon of air speed or direction suddenly change, can be divided into hanging down of horizontal wind
3 kinds of main Types such as vertical cut change, the horizontal shear of horizontal wind and vertical wind shear.Train is mainly subject to horizontal cutting to become air-flow
Impact, this shear wind is the one of the main reasons leading to train charming appearance and behaviour to be toppled.For example, the South Sinkiang train occurring for 2007 topples
Accident investigation result shows, the unexpected shear of air-flow plays key player；The charming appearance and behaviour that Japan occurs for nearly more than 20 years is inclined
Cover in accident, portion's bridge accident of 1986, Hokkaido root room line accident of 1994, three Lu Tiedao accidents, build in 1998
Fertile line accident etc., is all regarded as shear wind-induced train capsizing case by accident investigation board.Sending out with high-speed railway
Exhibition, aerodynamic characteristic under shear wind effect for the bullet train causes the very big concern of people.
Wind tunnel test is one of main effective means of research train pneumatic characteristic, and it is that acquisition can that accurate simulation carrys out properties of flow
By the premise of result of the test, but conventional wind-tunnel generation is all smooth air it is impossible to direct generation has wind speed, wind direction changes suddenly
Become the shear air-flow of characteristic.Therefore, act on the aerodynamic characteristic of Train for research shear wind, need to research and develop in a kind of routine wind-tunnel
Horizontal cutting changing the flow of QI-blood stream generating method.
Content of the invention
The technical problem to be solved in the present invention is can not directly to produce the problem of shear air-flow for conventional wind-tunnel, provide
A kind of tunnel simulation of routine produces horizontal cutting and becomes the shutter mechanism of air-flow and conventional tunnel simulation generation horizontal cutting changing the flow of QI-blood
The method of stream, by setting energy automatic lifting and the shutter mechanism with perforate at a certain distance from model upstream, by this
The horizontal shear of air-flow at test model is realized in the unexpected lifting of mechanism, and when the method can easily adjust air-flow shear, speed becomes
The duration changed and magnitude range, with the shear air-flow of the various characteristic of accurate simulation.
For achieving the above object, the technical solution adopted in the present invention is: shutter mechanism is arranged on model upstream one
At set a distance, mechanism height should be greater than the height of test model；Rotary shaft is inserted the rotary shaft hole of shutter mechanism and meets
The hole of aerofoil body, installs and fixes；By motor drive rotary shaft around different directions rotate, realize shutter mechanism rise or
Landing, the wherein unexpected decline of shutter mechanism can achieve the unexpected increase of wind speed at test model, rise suddenly and can achieve wind
The unexpected reduction of speed, rising or falling speed can control the length of Wind Speed Shear time；Uniform air-permeating hole, hole area in shutter mechanism
Ratio with the mechanism gross area is percent opening, big by adjusting wind speed at percent opening size scalable shutter mechanism downstream model
Little, to control velocity magnitude amplitude of variation before and after air-flow shear.
Preferentially, the lifting of shutter mechanism controls the rotation of shutter mechanism rotating shaft real by a set of automation control system
Existing, automation control system includes DC source, programmable logic controller (PLC), DC relay, power switch box, minisize dc
Reducing motor and rotary shaft, drive rotary shaft to rotate around different directions by miniature DC geared motor, realize the rise of mechanism
Or landing, and different two-way rocking bar on and off switch controls are set.
Preferentially, the axis of rotation speed of shutter mechanism can be controlled by automation control system, and energy side
Just different rotating speeds are obtained, thus controlling the rising or falling speed of shutter mechanism, and then velocity variations when controlling air-flow shear
Duration.
Preferentially, shutter mechanism uniformly lays some holes, can by adjust the quantity of via holes and size with
Change the size of percent opening, thus the wind speed size at model before controlling shutter mechanism to rise or landing, realize different size
Shear between wind speed.
For achieving the above object, the technical solution adopted in the present invention is: a kind of tunnel simulation of routine produces horizontal cutting
Become air-flow shutter mechanism, include the fixed support being fixed in ground and be vertically mounted on fixed support and be used for general
Horizontal gas flow is changed into the plate body windward that horizontal cutting becomes air-flow, and plate body is located at the windward side of high-speed railway bridge, plate windward windward
Offer on body multiple for ventilative air-permeating hole, the plate side of plate body is provided with and vertically moves for ordering about plate body windward windward
And control the drive mechanism of plate body translational speed windward.
Preferably, drive mechanism include being rotatably connected to windward the rotary shaft of plate body plate side, located at rotary shaft two ends
And for guiding the fixing groove of rotary shaft moving direction and being used for driving rotary shaft power source in rotary moving in fixing groove；
Fixing groove is vertically fixed on fixed support, and, along perpendicular to the direction of fixing groove arrangement, rotary shaft two ends respectively can for rotary shaft
Rollably fix in the fixing groove at rotary shaft two ends.
Preferably, drive mechanism includes being arranged at the cylinder of plate body plate side windward, and the outbound course of cylinder is along plate body windward
Moving direction arrangement；Plate body is mounted in gathering sill windward, and gathering sill is along the moving direction arrangement of plate body windward.
Preferably, air-permeating hole is provided with the perforate governor motion for adjusting bore size.
Preferably, the orifice plate that perforate governor motion is matched using the air-permeating hole with plate body surface windward, by adjustment hole
Plate makes the air-permeating hole of plate body and the hole on orifice plate windward misplace thus adjusting air-permeating hole with the relative position relation of plate body windward
Pore size.
Preferably, perforate governor motion adopts stopple, adjusts air-permeating hole by adjusting stopple with the relative distance of air-permeating hole
Pore size.
For achieving the above object, of the present invention another solution is that in a kind of routine wind-tunnel produces horizontal cutting
The method becoming air-flow, shutter mechanism is arranged on the upstream of train model, and the windward side of shutter mechanism has been evenly arranged ventilative
Hole, adjusts ventilative rate by the size and number changing air-permeating hole, for controlling velocity magnitude excursion before and after air-flow shear；
The lower end of shutter mechanism and ground are fixed, and are connected with the plate body windward of shutter mechanism by rotary shaft, shutter mechanism
Driving rotary shaft to rotate by drive mechanism controls plate body windward vertically to lift, by programmable logic controller (PLC) control
Drive mechanism processed changes the velocity of rotation of rotary shaft, thus changing the rising or falling speed of shutter mechanism, and then adjusts wind speed mutation
Time length.
Preferably, shutter mechanism is automatically controlled to the lifting of shutter mechanism as drive mechanism by motor, leads to
The air-flow shear at test train model is realized in the unexpected lifting crossing plate body windward.
Preferably, the height of shutter mechanism is more than the height of train model to be tested.
Preferably, rotary shaft is inserted the rotary shaft hole of shutter mechanism, rotary shaft is driven around not Tongfang by motor
To rotation, realize rise or the landing of shutter mechanism, wherein the unexpected decline of shutter mechanism is to realize train mould to be tested
The unexpected increase of wind speed at type, the unexpected rise of the shutter mechanism unexpected reduction to realize wind speed, rising or falling speed is used for controlling
The length of Wind Speed Shear time.
At a certain distance from shutter mechanism is arranged on model upstream, mechanism height should be greater than the height of test model；Will
The rotary shaft insertion rotary shaft hole of shutter mechanism and the hole of plate, install and fix.Rotary shaft is driven around not by motor
Equidirectional rotation, realizes rise or the landing of shutter mechanism, and the wherein unexpected decline of shutter mechanism can achieve test model
The unexpected increase of place's wind speed, rises suddenly the unexpected reduction that can achieve wind speed, and rising or falling speed can control the length of Wind Speed Shear time
Short.Uniform air vent in shutter mechanism, hole area is percent opening with the ratio of mechanism's gross area, by adjusting percent opening size
Wind speed size at scalable shutter mechanism downstream model, to control velocity magnitude amplitude of variation before and after air-flow shear.
Preferentially, the lifting of shutter mechanism controls the rotation of shutter mechanism rotating shaft real by a set of automation control system
Existing, this system includes DC source, programmable logic controller (PLC), DC relay, power switch box, miniature DC geared motor
Form with rotary shaft etc., drive rotary shaft to rotate around different directions by miniature DC geared motor, realize mechanism rise or
Landing, and different two-way rocking bar on and off switch controls are set.
Preferentially, the axis of rotation speed of shutter mechanism can be controlled by automation control system, and energy side
Just different rotating speeds are obtained, thus controlling the rising or falling speed of shutter mechanism, and then velocity variations when controlling air-flow shear
Duration.
Preferentially, shutter mechanism uniformly lays some holes, can by adjust the quantity of via holes and size with
Change the size of percent opening, thus the wind speed size at model before controlling shutter mechanism to rise or landing, realize different size
Shear between wind speed.
Produce the method that horizontal cutting becomes air-flow in conventional wind-tunnel, shutter machine is being installed at a certain distance from model upstream
Structure, drives rotary shaft to rotate, around different directions, rise or the landing realizing shutter mechanism by motor, by shutter mechanism
Suddenly the horizontal shear of air-flow at test model is realized in lifting, and rising or falling speed can control the length of Wind Speed Shear time.Due to fast
Uniform air-permeating hole in gate-type mechanism, by adjusting the wind speed size at percent opening size scalable shutter mechanism downstream model,
With velocity magnitude excursion before and after control air-flow shear.The method can the various characteristic of accurate simulation shear air-flow, applicable model
Enclose wider.
The beneficial effects of the present invention is:
Present invention routine tunnel simulation produces the shutter mechanism that horizontal cutting becomes air-flow, by high-speed railway bridge
Windward side arranges the plate body windward that can vertically move and opens up air-permeating hole on plate body windward come the water required for simulating
Truncation becomes air-flow, by the translational speed of driving mechanisms control plate body windward, thus the horizontal cutting realizing different in flow rate becomes air-flow,
Thus meeting the simulation needs under various situations.
Below in conjunction with the accompanying drawings patent of the present invention is described further.
Brief description
Fig. 1 is that the structure of the shutter mechanism of conventional tunnel simulation generation horizontal cutting change air-flow of the embodiment of the present invention is shown
It is intended to；
Fig. 2 is the structural representation of the shutter mechanism of the embodiment of the present invention.
Wherein 1 is fixed support；2 is plate body windward；3rd, high-speed railway bridge；4th, air-permeating hole；5th, drive mechanism；501st, solid
Determine groove；502nd, rotary shaft；503rd, power source.
Specific embodiment
Below patented technology content of the present invention is further illustrated, but the not limit to patent flesh and blood of the present invention
System.
Fig. 1 is that the structure of the shutter mechanism of conventional tunnel simulation generation horizontal cutting change air-flow of the embodiment of the present invention is shown
It is intended to；Fig. 2 is the structural representation of the shutter mechanism of the embodiment of the present invention.
The embodiment of the present invention, a kind of tunnel simulation of routine produces the shutter mechanism that horizontal cutting becomes air-flow, including affixed
Fixed support 1 on ground and being vertically mounted on fixed support 1 and for horizontal gas flow is changed into horizontal cutting changing the flow of QI-blood
Plate body 2 windward of stream, plate body 2 is located at the windward side of high-speed railway bridge 3 windward, offer on plate body 2 windward multiple for saturating
The air-permeating hole 4 of wind, windward the plate side of plate body 2 be provided with and vertically move and control plate body 2 windward to move for ordering about plate body 2 windward
The drive mechanism 5 of dynamic speed.
It also resides in, drive mechanism 5 include being rotatably connected to windward the rotary shaft 502 of plate body 2 plate side, located at rotation
Axle 502 two ends simultaneously are used for guiding the fixing groove 501 of rotary shaft 502 moving direction and being used for driving rotary shaft 502 in fixing groove
Power source 503 in rotary moving in 501；Fixing groove 501 is vertically fixed on fixed support 1, and rotary shaft 502 is along perpendicular to solid
Determine the direction arrangement of groove 501, rotary shaft 502 two ends rollably fix respectively in the fixing groove 501 at rotary shaft 502 two ends.
It also resides in, and drive mechanism 5 includes being arranged at the cylinder of plate body 2 plate side windward, and the outbound course of cylinder is along windward
The moving direction arrangement of plate body 2；Plate body 2 is mounted in gathering sill windward, and gathering sill is along the moving direction arrangement of plate body 2 windward.
It also resides in, and air-permeating hole 4 is provided with the perforate governor motion for adjusting bore size.
It also resides in, the orifice plate that perforate governor motion is matched using the air-permeating hole 4 with plate body 2 surface windward, by adjusting
Knothole plate makes the air-permeating hole 4 of plate body 2 windward and the hole on orifice plate misplace thus adjusting thoroughly with the relative position relation of plate body 2 windward
The pore size of air holes 4.
It also resides in, and perforate governor motion adopts stopple, ventilative with the relative distance regulation of air-permeating hole 4 by adjusting stopple
The pore size in hole 4.
The embodiment of the present invention, produces, in a kind of routine wind-tunnel, the method that horizontal cutting becomes air-flow, shutter mechanism is arranged on row
The upstream of vehicle model, the windward side of shutter mechanism has been evenly arranged air-permeating hole 4, by changing the size and number of air-permeating hole 4
Adjust ventilative rate, for controlling velocity magnitude excursion before and after air-flow shear；The lower end of shutter mechanism and ground are fixed, and
It is connected with the plate body windward 2 of shutter mechanism by rotary shaft 502, shutter mechanism drives rotary shaft 502 by drive mechanism 5
Rotate to control plate body 2 windward vertically to lift, rotary shaft is changed by PLC controls drive mechanism 5
502 velocity of rotation, thus changing the rising or falling speed of shutter mechanism, and then adjusts the time length of wind speed mutation.
It also resides in, and shutter mechanism is automatically controlled to the lifting of shutter mechanism as drive mechanism 5 by motor,
Air-flow shear at test train model is realized by the unexpected lifting of plate body 2 windward.
It also resides in, and the height of shutter mechanism is more than the height of train model to be tested.
It also resides in, and rotary shaft 502 is inserted rotary shaft 502 hole of shutter mechanism, drives rotary shaft by motor
502 rotate around different directions, realize rise or the landing of shutter mechanism, wherein the unexpected decline of shutter mechanism is to realize treating
The unexpected increase of wind speed at test train model, the unexpected rise of the shutter mechanism unexpected reduction to realize wind speed, lifting speed
Spend the length for the controlled wind speed switching time.
Embodiment 1
In described routine wind-tunnel, the step of shear air-flow method for generation is:
With reference to Fig. 1, shutter mechanism of the present invention is arranged on the upstream of test model, the uniform cloth in windward side of shutter mechanism
Put air-permeating hole 4, air-permeating hole 4 can be rectangle or circle, ventilative rate is adjusted by the size and number changing air-permeating hole 4.Meet
Aerofoil body 2 is fixed on ground by fixed support 1, and the lower end of shutter mechanism and ground are fixed, and shutter mechanism passes through to rotate
Axle 502 is connected with plate body 2 windward.Shutter mechanism is plate profile structure, by changing different ventilative rates, reaches different wind
Speed；The rotation of shutter mechanism is realized by the rotation that motor (power source 503) controls rotary shaft 502, and can pass through programmable
Logic controller (prior art) controlled motor (power source 503) changes the speed of rotary shaft 502, thus changing wind speed mutation
Time.
Embodiment 2
Shear air-flow method for generation in a kind of routine wind-tunnel, as shown in figure 1, taking high-speed railway bridge 2 and train as a example
Shutter mechanism is installed in model upstream, and the windward side of shutter mechanism is evenly arranged air-permeating hole 4, air-permeating hole 4 can be rectangle or
Person is circular, adjusts ventilative rate by the size and number changing air-permeating hole 4；The height of shutter mechanism cannot be below train mould
The height sum of type, bridge model and bridge pier model；Plate body 2 is fixed on ground windward, and the lower end of shutter mechanism is solid with ground
Fixed, shutter mechanism is connected with plate body 2 windward by rotary shaft 502.
During test, adjust to flow wind speed amplitude of variation before and after shear, wind by change shutter mechanism ventilative rate size
Fast mutation time then to be realized by the rising or falling speed of motor control shutter mechanism, accordingly can the various characteristic of accurate simulation level
Shear wind.
The invention belongs to one of primary study content of project of national nature science fund project (51322808), it is running train
Aeroperformance and safety traffic provide more accurate wind tunnel test means, thus for guaranteeing carrying of bullet train safe operation
For technical support.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization
The equivalent structure transformation that present specification is made, or be directly or indirectly used in other related technical fields, all with
Reason is included within the scope of the present invention.
Claims (8)
1. a kind of tunnel simulation of routine produces the shutter mechanism of horizontal cutting change air-flow it is characterised in that including being fixed in ground
The fixed support in face and be vertically mounted on fixed support and become meeting of air-flow for horizontal gas flow is changed into horizontal cutting
Aerofoil body, plate body is located at the windward side of high-speed railway bridge windward, offer on plate body windward multiple for ventilative air-permeating hole,
The plate side of plate body is provided with and vertically moves and control the driving machine of plate body translational speed windward for ordering about plate body windward windward
Structure；
Drive mechanism include being rotatably connected to windward the rotary shaft of plate body plate side, turn located at rotary shaft two ends and for guiding
The fixing groove of moving axis moving direction and for driving rotary shaft power source in rotary moving in fixing groove；Fixing groove is vertically
It is fixed on fixed support, along perpendicular to the direction of fixing groove arrangement, rotary shaft two ends rollably fix rotary shaft respectively
In the fixing groove at rotary shaft two ends；Or
Drive mechanism includes being arranged at the cylinder of plate body plate side windward, and the outbound course of cylinder is along the moving direction cloth of plate body windward
Put；Plate body is mounted in gathering sill windward, and gathering sill is along the moving direction arrangement of plate body windward；
The height of shutter mechanism is more than the height of train model to be tested.
2. routine according to claim 1 tunnel simulation produces the shutter mechanism that horizontal cutting becomes air-flow, and its feature exists
In the perforate governor motion for adjusting bore size is provided with air-permeating hole.
3. routine according to claim 2 tunnel simulation produces the shutter mechanism that horizontal cutting becomes air-flow, and its feature exists
In the orifice plate that perforate governor motion is matched using the air-permeating hole with plate body surface windward, by regulating orifice plate and plate body windward
Relative position relation so that the hole on the air-permeating hole of plate body and orifice plate windward is misplaced thus adjusting the pore size of air-permeating hole.
4. routine according to claim 2 tunnel simulation produces the shutter mechanism that horizontal cutting becomes air-flow, and its feature exists
In perforate governor motion adopts stopple, by adjusting the pore size of stopple and the relative distance regulation air-permeating hole of air-permeating hole.
5. produce horizontal cutting in a kind of routine wind-tunnel and become the method for air-flow it is characterised in that shutter mechanism is arranged on train mould
The upstream of type, the windward side of shutter mechanism has been evenly arranged air-permeating hole, is adjusted thoroughly by the size and number changing air-permeating hole
Wind rate, for controlling velocity magnitude excursion before and after air-flow shear；The lower end of shutter mechanism and ground are fixed, and by turning
Moving axis is connected with the plate body windward of shutter mechanism, and shutter mechanism drives rotary shaft rotation to control windward by drive mechanism
Plate body vertically lifts, and changes the velocity of rotation of rotary shaft by PLC controls drive mechanism, thus
Change the rising or falling speed of shutter mechanism, and then adjust the time length of wind speed mutation.
6. produce horizontal cutting in routine wind-tunnel according to claim 5 and become the method for air-flow it is characterised in that shutter machine
Structure is automatically controlled to the lifting of shutter mechanism as drive mechanism by motor, is realized by the unexpected lifting of plate body windward
Air-flow shear at test train model.
7. produce horizontal cutting in routine wind-tunnel according to claim 5 and become the method for air-flow it is characterised in that shutter machine
The height of structure is more than the height of train model to be tested.
8. produce horizontal cutting in routine wind-tunnel according to claim 5 and become the method for air-flow it is characterised in that by rotary shaft
The rotary shaft hole of insertion shutter mechanism, drives rotary shaft to rotate around different directions by motor, realizes shutter mechanism
Rise or land, wherein the unexpected decline of shutter mechanism is to realize the unexpected increase of wind speed at train model to be tested, shutter
To realize the unexpected reduction of wind speed, rising or falling speed is used for the length of controlled wind speed switching time for the unexpected rise of formula mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605649.6A CN104458196B (en) | 2014-10-31 | 2014-10-31 | Shutter type mechanism for generating horizontal shear airflow in conventional wind tunnel in simulation mode and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605649.6A CN104458196B (en) | 2014-10-31 | 2014-10-31 | Shutter type mechanism for generating horizontal shear airflow in conventional wind tunnel in simulation mode and method |
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| CN104458196A CN104458196A (en) | 2015-03-25 |
| CN104458196B true CN104458196B (en) | 2017-01-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060279B (en) * | 2019-12-31 | 2022-03-01 | 武汉武船重型装备工程有限责任公司 | Rotary wind tunnel isolation door |
| CN114509232B (en) * | 2022-01-20 | 2023-08-22 | 中国空气动力研究与发展中心高速空气动力研究所 | Hole wall device for modularized wind tunnel test |
| CN114383803B (en) * | 2022-03-22 | 2022-06-14 | 西南交通大学 | Wind tunnel test device for aerodynamic characteristics of pseudo-dynamic vehicle-bridge |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401739A (en) * | 2010-09-08 | 2012-04-04 | 无锡市锦华试验设备有限公司 | Air tunnel fast braking test system |
| CN103207059A (en) * | 2013-04-27 | 2013-07-17 | 中南大学 | Experimental platform for aerodynamic characteristics of near-earth environmental moving objects |
| CN203587312U (en) * | 2013-10-01 | 2014-05-07 | 南京铁道职业技术学院 | Open wind tunnel for simulating external environment of high-speed train |
| CN204128775U (en) * | 2014-10-31 | 2015-01-28 | 中南大学 | Conventional tunnel simulation produces the shutter mechanism of horizontal shear air-flow |
-
2014
- 2014-10-31 CN CN201410605649.6A patent/CN104458196B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401739A (en) * | 2010-09-08 | 2012-04-04 | 无锡市锦华试验设备有限公司 | Air tunnel fast braking test system |
| CN103207059A (en) * | 2013-04-27 | 2013-07-17 | 中南大学 | Experimental platform for aerodynamic characteristics of near-earth environmental moving objects |
| CN203587312U (en) * | 2013-10-01 | 2014-05-07 | 南京铁道职业技术学院 | Open wind tunnel for simulating external environment of high-speed train |
| CN204128775U (en) * | 2014-10-31 | 2015-01-28 | 中南大学 | Conventional tunnel simulation produces the shutter mechanism of horizontal shear air-flow |
Non-Patent Citations (1)
| Title |
|---|
| 横风作用下高速列车-32m简支梁桥系统气动性能三维数值模拟;何旭辉等;《铁道科学与工程学报》;20140430;第11卷(第2期);第21-27页 * |
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