CN107344560A - A kind of drag reduction technology that can be used outside bullet train - Google Patents
A kind of drag reduction technology that can be used outside bullet train Download PDFInfo
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- CN107344560A CN107344560A CN201610307785.6A CN201610307785A CN107344560A CN 107344560 A CN107344560 A CN 107344560A CN 201610307785 A CN201610307785 A CN 201610307785A CN 107344560 A CN107344560 A CN 107344560A
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- damping device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Fluid Mechanics (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
A kind of drag reduction technology that can be used outside hot-short, it is characterized in that, in the rectification centrum area forefront of high ferro, motor-car and other hot-short head positions, all make have with air inlet (3), the outer spout (2) of gas, with into based on whirlpool damping device shell (1), front hanging type is into whirlpool damping device or jacket-type into whirlpool damping device；And when damping device is made outside high ferro etc hot-short, both front hanging type can be made into whirlpool damping device or jacket-type into whirlpool damping device merely in headstock rectification centrum area forefront；Also can be by the outside of bullet train headstock front portion rectification centrum area, front hanging type is into whirlpool damping device or jacket-type into whirlpool damping device, from on the outside of different compartment Jian Renhang passageways positions, gap is jet-propelled or air suction type damping device, to form damping device to make jointly.
Description
Technical field：
The present invention relates to it is a kind of can be in the drag reduction skill of high ferro, motor-car, automobile and other hot-short exterior applications
Art.
Background technology：
Present high ferro, motor-car and other hot-shorts, motion process carry out drag reduction, it is main be by high ferro,
The head position of motor-car and other bullet trains, it is made as nearly fairing shape profile, and all compartments by head rear
Outer surface, all it is made as substantially plane realize.But although drag reduction purpose to a certain degree can be also realized using such technology,
But application and continuous development is being repeated in process on high ferro etc hot-short top these years, it is fixed to be mature on the whole now
Type, the leeway that continue to be greatly improved is little, so wanting high ferro etc speed car is further greatly reduced
Motion process resistance, just must take into consideration the more effective drag reduction mechanisms for seeking other bluff profiles.
The content of the invention：
The target of the present invention, seek to propose that one kind can be moved through in high ferro, motor-car, automobile and other hot-shorts
The more preferable drag reduction technology that Cheng Jinhang is used.
In order to realize such target, a kind of drag reduction technology that can be used outside hot-short of proposition, it is characterised in that
In the rectification centrum area forefront of high ferro, motor-car and other hot-short head positions, all make have with air inlet (3),
The outer spout (2) of gas, with into based on whirlpool damping device shell (1), front hanging type is into whirlpool damping device or jacket-type into whirlpool drag reduction
Device；And when damping device is made outside high ferro etc hot-short, both can merely in headstock rectification centrum area forefront,
Front hanging type is made into whirlpool damping device or jacket-type into whirlpool damping device；Also can be by installed in hot-short headstock front portion rectification vertebra
On the outside of body area, front hanging type is into whirlpool damping device or jacket-type into whirlpool damping device, and positioned at different compartment Jian Renhang passageways portions
Position outside, gap is jet-propelled or air suction type damping device, and damping device is formed to make jointly.
So by high ferro, motor-car and hot-short outer surface, being mounted to the high ferro of whirlpool damping device etc speed car
Drag reduction method, you can used at high ferro etc hot-short headstock forefront position.Also high ferro etc height can be arranged on
The afterbody of fast vehicle is used.And so drag reduction technology can be installed and used on newly-built various bullet train tops, also may be used
Be used for carrying out transformation to various existing trains, thus so technology be that one kind has wide range of applications, and finally can be achieved compared with
The significantly practical technique of vehicle drag reduction.
Brief description of the drawings：
Below with regard to let us combination accompanying drawing, some features of this drag reduction overcoat are conducted some supplement.
Fig. 1-2 is that rectification centrum area forefront outer surface makes in front of train wherein two kinds have into whirlpool damping device
High ferro etc hot-short head forefront hook near sites side elevational cross-section structural representation.
Fig. 3 is to make to have one of which of the jacket-type into whirlpool damping device in train forefront rectification centrum area outside left
The side structure schematic view at high ferro etc hot-short head forefront position.
Fig. 4 is to make to have the one of which of jacket-type into whirlpool damping device high at vehicle front rectification centrum area shell position
The procephalic side view visual appearance structure of iron etc hot-short machine and part section structural representation.
Fig. 5 be up part thrown off damping device shell making have jacket-type into whirlpool damping device wherein
The side view visual appearance structural representation at head position in front of a kind of high ferro etc hot-short.
Fig. 6-7 is to make to have by the way that gap is jet-propelled or air-breathing near high ferro etc hot-short compartment interconnection area
Train people's row passageway position of formula damping device (the gas movement square tube position width in figure, which has, significantly to be amplified) is wherein
Two kinds of cross-section section visual appearance structure schematic side views.
The one of which air inlet that Fig. 8 is mounted in anterior jacket-type into the whirlpool damping device of high ferro etc hot-short is attached
The forward sight section visible structure schematic diagram of near-end position.
Fig. 9 be positioned at compartment Ren Hang passageways position gap is jet-propelled or air suction type damping device in gas movement square tube
The cross-section section surface structure schematic diagram of one of which.
Figure 10-11 is in the wherein two kinds of sides for upwardly extending air inlet pipe position that high ferro etc hot-short car body top makes
Depending on cross-section structure visible structure schematic diagram is regarded with lower.
In figure；1 into the head forefront outer shell of 3 air inlet of spout, 4 inlet cone 5 outside the gas of whirlpool damping device shell 2
The cab glass 11 of 9 lateral wheel skirt of the rib type external reinforcing muscle 8 of 6 train hooking device 7 hook position shell 10 arranges
The fracture 15 that the forefront head centrum shell 14 of 12 clear width bar of vehicle device head outer surface 13 throws off into whirlpool drag reduction shell arranges
Motor of 17 gravitation fan of gas movable passageway 18 etc power set 19 are inside and outside in the air inlet gap of car compartment shell 16 moves
The attendant's room of personnel's movable passageway 21 or the train of lavatory 22 inner side floor 23 air inlet pipe between 20 different compartments of gas separator plate
24 air inlet pipe 25 that is open gas sucks or outwards the injection gas of gap 26 moves the fusiform fairing 28 of square tube internal channel 27
Gas moves square tube outer wall.
Embodiment：
One kind (can be collectively referred to as high ferro etc hot-short or height below in high ferro, motor-car, automobile or other hot-shorts
Fast train) exterior applications drag reduction technology, its can merely by installed in headstock front portion rectification centrum area position, front hanging type into
Whirlpool damping device or jacket-type are formed into whirlpool damping device.Also on the outside of can be by headstock front portion rectification centrum area, front hanging type be into whirlpool
Damping device or jacket-type are into whirlpool damping device, on the outside of people's row passageway position between different compartments, gap jet
Formula or air suction type damping device collectively form.
Positioned at headstock front portion rectification centrum area into whirlpool damping device, can be produced on as drawn in Fig. 1-3
High ferro etc hot-short, the train hooking device anterior region in front of head rectification centrum area.It is allowed to form front hanging type
Into whirlpool damping device.Also high ferro etc hot-short can will be produced on into whirlpool damping device as similar to being drawn in Fig. 4-5
, the outer surface near middle position in front of headstock rectification centrum area.It is allowed to form a kind of filling into whirlpool drag reduction for similar jacket-type
Put.
Whether front hanging type into whirlpool damping device, or jacket-type into whirlpool damping device, the air inlet of its forefront
(3) area, the postmedian gas mobile space plumb cut area that should be all much smaller than on the inside of air inlet, should more be much smaller than more rear
Outer spout (2) total opening area of gas.Only in this way just can not be because being mounted with into whirlpool damping device, and apparent be further added by
More new air drag.
When in the front portion of high ferro etc hot-short, when making front hanging type into whirlpool damping device, in order to increase considerably from
The air inlet quantity of forward air inlet mouth (3), and strengthen in front hanging type into the vortex current rate formed outside the damping device of whirlpool,
Front hanging type can also make the gravitation fan (17) being driven by power set into the air inlet in front of the damping device of whirlpool.
And it is anterior in high ferro etc hot-short, the front hanging type of making is interior into whirlpool damping device front portion air inlet (3), made
Power drive type gravitation fan (17) device of work, the power needed for its rotary motion, preferably with can very big width as needed
The motor of degree adjustment rotary speed etc power set (18) provide.But whenever necessary also can be in motor etc power in tool
Device (18), between the gravitation fan (17) that is driven by it, making the speed change gear that can significantly alter rotary speed.
The anterior or preceding outside left of high ferro etc hot-short, make front hanging type into whirlpool damping device or jacket-type into
After the damping device of whirlpool, why Cheng Jinhang drag reductions can be being run over, most the underlying cause is exactly the air from front, logical
Front hanging type or jacket-type are crossed into whirlpool damping device forward air inlet mouth (3), is drawn into or punching press enters after damping device, when
When then the outer shifting property of the outside progress of spout (2) is erupted outside gas, because these are all to external eruption gas, relatively high speed train outside
The high-speed motion air at position is enclosed, its speed of related movement is close to 0, so by this two kinds of different motion speed air,
The interaction that they contact with each other near face, so that it may cause to cross so into after the damping device position of whirlpool, continue at a high speed
The air moved backward on the outside of the outer surface of train head position, the state for carrying out strong rotating vortex formula motion is changed into, so as to
Very big amplitude reduction high ferro etc hot-short, in the resistance of motion for the process of running at high speed.
Front hanging type is into whirlpool damping device or jacket-type into whirlpool damping device, outside its forward air inlet mouth (3) and backside gas
Spout (2), it is when the opening area having is close or operating efficiency is close, then such into the whirlpool damping device course of work,
Although can also produce a little smaller gas resistance of motion, compared with its producible drag reduction effect, the resistance that so newly increases
It is completely it is believed that insignificant.
But when outer spout (2) area of the gas at damping device rear, extremely significantly it is more than forward air inlet mouth (3) area, or
The normal operating efficiency of person's forward air inlet mouth (3), pole significantly less than spout outside backside gas (2) operating efficiency when；Then so
Front hanging type or jacket-type into whirlpool damping device at work, will cause in the bullet train into whirlpool damping device rear portion, its
The spin intensity for the air-swirl that outer surface is formed is very strong, and therefore may be such that bullet train is running over journey, producible
Running movement resistance also becomes minimum.
And air inlet (3) punching press intake efficiency in front of damping device, pole are significantly lower than the outer spout of backside gas
(2) during the efficiency being outwards exhausted, at this moment will because from front hanging type or jacket-type into whirlpool damping device front portion air inlet (3),
Into the air of gas mobile space on the inside of damping device, all by the air just flowed through at a high speed outside the spout (2) outside gas,
The negative pressure of the class air exhauster effect formed attracts strongly, the spout outside the gas at damping device rear portion (2) eruption extremely fast
Outflow, it is extremely thin so as to cause the air molecule in gas mobile space to be distributed.And the extremely strong suction function so formed, again
Extremely strong vacuum suction effect can further be formed to the air in front of damping device air inlet (3).And therefore original is caused to be present in
Air in air inlet (3) front space, no longer it is to wait for acting on to enter air inlet (3) by natural punching press, but is entered
Existing extremely strong vacuum suction effect in gas port (3), the quick of strength attractability are pulled in air inlet (3).At this moment front hanging type
Or jacket-type is into whirlpool damping device, is no longer only just a damping device, but simultaneously or one there is certain promote to make
Minitype motivation draw-gear.
And in front hanging type into whirlpool damping device and jacket-type into whirlpool damping device, this two kinds of front portions into the damping device of whirlpool,
The drag reduction efficiency of jacket-type into whirlpool damping device may be more preferable.Because jacket-type is into spout outside the gas of whirlpool damping device
(2) maximum gauge at position is noticeably greater than straight using maximum of the front hanging type into spout (2) position outside the gas during damping device of whirlpool
Footpath；So by the air that spout (2) moves out outside such gas, with more extraneous air interact caused by be vortexed,
After head maximum gauge position is crossed, its still retainable air-swirl intensity is bigger, so it carries out the efficiency of drag reduction
Also will be higher.
Other front hanging type or jacket-type are into whirlpool damping device, when being produced on high ferro etc hot-short head forefront,
A main advantages also having, be exactly its not only when bullet train moves forward, can utilize so into whirlpool damping device
Carry out drag reduction.And be exactly when high ferro etc bullet train carries out backward going, it equally can also have very high drag reduction to imitate
Rate.
Why can most basic reason so, be exactly because using such damping device train head, because of train
Backward going and when being transformed into the tailstock, or the tailstock in high ferro etc bullet train is made as with headstock using same structure
When having front hanging type or jacket-type into whirlpool damping device last vehicle of train, it can equally be run at high speed process in train, because of opening backward
So original air inlet in damping device rear portion (3), the air at its rear is very thin, thus (extremely significantly low with larger negative pressure
Negative pressure is just can be described as in surrounding space normal atmosphere (An)), so as to cause to be located under the driving that such vacuum suction acts on
Front hanging type (being at this moment transformed into rear mounted) or jacket-type are existing into whirlpool damping device, outer spout (2) outside of gas originally
The leaner air of internal layer, because being influenceed by extremely strong vacuum suction existing for rear original air inlet (3), and sprayed outside the gas of script
Mouth (2) position, into the gas mobile space on the inside of the damping device of whirlpool, then sprays backward from rear portion original air inlet (3) again.
At the same time by the distant outside air that spout (2) moves to outside gas originally is attracted, because having little time the gas into script
External spout (2), and be changed into the followability motion for carrying out pointing to train direction of advance, and be subsequently converted into along relatively close to
The vortex state air-flow of last vehicle of train outer surface motion.So as to cause last vehicle of train peripheral region, continue never again by larger
Suction function influences and produces larger resistance.It can thus cause the drag reduction efficiency of afterbody damping device higher.Especially exist
The outer spout (2) of afterbody damping device gas, near last vehicle of train damping device drag reduction centrum length half, and protocercal tail
Portion's air inlet (3) is located at the tail end at train rear portion, or relatively the tail end of train rearmost part when, its drag reduction efficiency that can have
It is higher.
And on the outside of high ferro etc hot-short difference compartment Jian Renhang passageways position, made gap is jet-propelled or inhales
Gas formula damping device, it can be made as sucking air by top air inlet pipe (24), then on the outside of two sides in compartment, bottom
Structure on the outside of position, with being erupted on the outside of the jet-propelled gap position in top.
On the outside of high ferro etc hot-short difference compartment Jian Renhang passageways position, made gap is jet-propelled or air-breathing
Formula damping device, it can also be made as sucking air, the then spray on the outside of two sides with top by top air inlet pipe (24)
The structure erupted on the outside of the position of gas formula gap.
On the outside of high ferro etc hot-short difference compartment Jian Renhang passageways position, made gap is jet-propelled or air-breathing
Formula damping device, it can also be made as sucking air by car body top air inlet gap, then on the outside of the side of compartment two, or
On the outside of two sides and lower portion, structure that the jet-propelled gap of making is erupted.
On the outside of high ferro etc hot-short difference compartment Jian Renhang passageways position, made gap is jet-propelled or air-breathing
Formula damping device, can equally be made as can be by the way that on the outside of two sides, with the air suction type gap on the outside of top portion, suction be largely
Air in exterior space；Or pass through two sides, top portion, the air suction type gap suction large quantity of air with lower portion；So
Afterwards again by top air inlet pipe (24) or air inlet gap, the structure that the air of these suctions is erupted away again.
In order that gap is jet-propelled or air suction type damping device in, it is inhalable or gush out and enough can be used for drag reduction gas
Body, the circular air inlet pipe (24) at the top of the jet-propelled damping device in gap is interior, or the very long and narrow of car body top fills into whirlpool drag reduction
Put on the inside of air inlet gap opening position, gas move square tube space-like, should all install by power-actuated attraction compared with
Big gravitation fan (17) device.
And in certain limit scope, because gap is jet-propelled or air suction type damping device within, be damping device gas
Body moves gap, and the air for being drawn inwardly to or outwards blowing out is more, its air that can be formed on the outside of high ferro etc hot-short
Be vortexed spin intensity it is stronger, naturally also will drag-reduction effect it is better.So gap is jet-propelled or the air inlet of air suction type damping device
Oral area position or its inner side, the attraction that gravitation fan (17) device of installation has is bigger, and its drag-reduction effect having can be got over
It is good.
Between connection high ferro etc hot-short difference compartment, outermost surfaces position near people's row passageway is made
Gap it is jet-propelled or air suction type is into whirlpool damping device, the jet-propelled or air suction type gap of its outer surface, draw in from air inlet
For power fan (17) apart from different parts, the mean breadth that should be made slightly has difference.And whether sucked in the gas of attraction type
Or outwards spray gap (25) outer surface, or Puffer type gas suction or outwards spray gap (25) outer surface, all
Should be from position nearer with a distance from gravitation fan (17), the inside and outside mean breadth that gas sucked or outwards sprayed gap (25) gets over phase
To smaller.Conversely position nearer with a distance from from gravitation fan (17), then gas is answered to suck or outwards spray the interior of gap (25)
Outer mean breadth is just answered somewhat larger.
In addition in high ferro etc hot-short compartment position outer surface, making that gap is jet-propelled or air suction type is into whirlpool drag reduction
During device, except can near the people's row passageway for connecting different compartments position outermost surfaces, it is jet-propelled or inhale to carry out gap
Gas formula, in the middle part position outer surface in each compartment, can also make simultaneously into outside the making of whirlpool damping device in tool whenever necessary
One or more gaps are jet-propelled or air suction type is into whirlpool damping device.
When similar Fig. 7 in car body top like that by setting air inlet pipe (24), it is available for gap is jet-propelled to subtract into whirlpool to suck
When resistance device carries out the air that gas eruption drag reduction uses, in order to reduce the resistance of motion in train driving process, in its carriage top
On the outside of the air inlet pipe (24) that portion makes, lower apparent time its planar profile should be produced on, is drawn in similar Figure 10 such longer and narrower；
And in side view similar to being drawn in Figure 11 as, from center to the highly gently dipping fusiform fairing (27) in two sides.
Gap is jet-propelled or air suction type is into whirlpool damping device, the connector between installation high ferro etc hot-short difference compartment
After near sites, when gathering throat is the structure of attraction type, attracted by attraction type gap and to bullet train surface drag reduction
Device gap, some slightly remote air of the distance moved, attracts by attraction type gap, and close to attraction type drag reduction gap
When, because attraction type gap has occurred quickly to move forward, so they have little time to enter attraction type drag reduction gap, at this moment they are just
Can occur the direction of motion turning, and change into carry out point to bullet train motion front travelling forward, and then because with more
There is the reversing of motion in atmosphere outside, so under interacting between them, will produce interior side direction and be carried forward rotation
Vortex.It is and natural the gap of motion is jet-propelled or air suction type damping device as high ferro etc hot-short moves forward
Rear portion, it will constantly form new continuous carry out high speed rotary motion air-swirl.So that the height with attraction type gap
The fast whole outer surface of train, all shroud under the covering of such high speed rotating vortex air-flow, so in high ferro etc at a high speed
Vehicle movement process, it is exactly inevitable that can carry out significantly drag reduction.
And in the different compartment connector near sites of high ferro etc hot-short, making be Puffer type gap structure
When, then, can be within Puffer type gap, constantly to external eruption high-speed motion air draught, institute because in bullet train motion process
Constantly to be travelled forward with bullet train, similarly can because high-speed motion eruption air-flow in air pressure significantly under
Drop, and cause the air positioned at so positive eruption air-flow rear of advancing, occur to point to so at a high speed to external eruption direction of air
Tracing ability moves.Thus can always it be chased after because moving out the tracing ability motive air at air draught rear portion positioned at such high speed
Catch up with what is constantly travelled forward, the air draught erupted out of Puffer type gap, and their direction of motion, with more lateral
High-speed motion air is completely reversed, and so equally also can form the air rotated strongly in the compartment outside left of bullet train
Vortex.It so also will necessarily just cause the bullet train for being provided with Puffer type gap, equally can quilt in its motion process outer surface
Air-swirl is completely covered, so it is also inevitable that it, which can have preferably motion drag reduction effect,.
In a word in high ferro etc hot-short anterior region, front hanging type or jacket-type are made into whirlpool damping device；And
Connect in high ferro etc bullet train between different compartments, the compartment outermost surfaces position near people's row passageway, make gap spray
Gas formula or air suction type are into after the damping device of whirlpool.Because travelling process in high ferro etc bullet train, can all be wrapped in from front to back
Within the vortex air-flow rotated strongly, so can be inevitable in the very big amplitude drag reduction of motion process that run at high speed.
Claims (1)
1. a kind of drag reduction technology that can be used outside hot-short, it is characterised in that in high ferro, motor-car and other high speeds
The rectification centrum area forefront at vehicle head position, all make have with air inlet (3), the outer spout (2) of gas, with into whirlpool drag reduction
Based on crust of the device (1), front hanging type is into whirlpool damping device or jacket-type into whirlpool damping device；And in high ferro etc speed car
It is outside when making damping device, both can merely in headstock rectification centrum area forefront, make front hanging type into whirlpool damping device or
Jacket-type is into whirlpool damping device；Also can be by the outside of bullet train headstock front portion rectification centrum area, front hanging type subtracts into whirlpool
Device or jacket-type are hindered into whirlpool damping device, and on the outside of different compartment Jian Renhang passageways positions, gap is jet-propelled or inhales
Gas formula damping device, damping device is formed to make jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307785.6A CN107344560A (en) | 2016-05-05 | 2016-05-05 | A kind of drag reduction technology that can be used outside bullet train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307785.6A CN107344560A (en) | 2016-05-05 | 2016-05-05 | A kind of drag reduction technology that can be used outside bullet train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107344560A true CN107344560A (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610307785.6A Pending CN107344560A (en) | 2016-05-05 | 2016-05-05 | A kind of drag reduction technology that can be used outside bullet train |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108263405A (en) * | 2018-01-31 | 2018-07-10 | 史永奇 | A kind of drag reduction facility of bullet train |
| CN108930553A (en) * | 2018-07-27 | 2018-12-04 | 武汉工程大学 | Bullet train tunnel compressional wave relief features |
| CN112498406A (en) * | 2020-12-14 | 2021-03-16 | 中车株洲电力机车有限公司 | High-speed train, and emergency braking method and system for high-speed train |
-
2016
- 2016-05-05 CN CN201610307785.6A patent/CN107344560A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108263405A (en) * | 2018-01-31 | 2018-07-10 | 史永奇 | A kind of drag reduction facility of bullet train |
| CN108930553A (en) * | 2018-07-27 | 2018-12-04 | 武汉工程大学 | Bullet train tunnel compressional wave relief features |
| CN112498406A (en) * | 2020-12-14 | 2021-03-16 | 中车株洲电力机车有限公司 | High-speed train, and emergency braking method and system for high-speed train |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171114 |
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| WD01 | Invention patent application deemed withdrawn after publication |