CN102774391B - Locomotive structure of high-speed train - Google Patents
Locomotive structure of high-speed train Download PDFInfo
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- CN102774391B CN102774391B CN201110121410.8A CN201110121410A CN102774391B CN 102774391 B CN102774391 B CN 102774391B CN 201110121410 A CN201110121410 A CN 201110121410A CN 102774391 B CN102774391 B CN 102774391B
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- nose cone
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- locomotive
- drivers
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- 230000003137 locomotive effect Effects 0.000 title abstract 9
- 230000000007 visual effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 2
- 230000007704 transition Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Body Structure For Vehicles (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention relates to a locomotive structure of a high speed train. A locomotive has streamline appearance; a head of the locomotive is a rotating body nose cone; a plow-shaped spoiler is arranged below the nose cone; a diversion trench structure is formed by the spoiler and the nose cone; the nose cone is connected with a wedge-shaped cab; the upper part of the cab protrudes upward to form an ellipsoidal vehicle front window; the nose cone, the cab and the vehicle front window are in smooth transition; and the height h from the center line of the nose cone to the bottom of the locomotive is 1/4 to 1/3 of the total height H of the locomotive. According to the invention, the nose cone at the head of the locomotive is a rotating body, so that the locomotive structure is beneficial for reducing the air resistance; by the reasonable matching of the diversion trench, the locomotive structure is beneficial for guiding most of air flow to the upper part of a vehicle body and both sides of the vehicle body and most of air flow is avoided entering a gap at the lower part of the vehicle body and a bogie region, and thus, the air resistance is effectively reduced; and due to the arrangement of the ellipsoidal vehicle front window, not only can the aerodynamic noise at the position be reduced, but also a visual field of a driver and the inner space of the cab can be increased.
Description
Technical field
The present invention relates to a kind of vehicle head structure of bullet train, particularly a kind ofly run the Rapid train headstock structure that speed per hour is more than 380km/h, belong to high-speed train body manufacturing technology field.
Background technology
Along with improving constantly of train running speed, aerodynamic drag suffered by train also increases fast, simultaneously, in train high-speed cruising process, other trains that the train of high-speed cruising and ground, peripheral facility and circuit run influence each other, and form complicated Coupling effect of seepage rock deformation: the aerodynamic lift suffered by train, intersection side force and beam wind effect will cause adverse effect to train operation stability; Train surface pressure, air crossing pressure pulse will cause adverse effect to car body strength; The aerodynamic noise that train operation produces to ride quality, and will cause adverse effect etc. to surrounding enviroment.Thus, in High-Speed Train Design, need to carry out abundant aerodynamic optimization, to solve the problem to the head dummy of car body particularly headstock.
Need the factor considered various, interrelated between various design considerations and performance, mutually restrict in head shape of high-speed train design, need between many design factors seeking balance.Specific in head dummy pneumatic design, need to average out between several main performance index such as aerodynamic drag, aerodynamic lift, side force, aerodynamic noise, complex optimum car load aeroperformance.
Summary of the invention
Main purpose of the present invention is to solve the problem, and provides the Rapid train headstock structure that a kind of aeroperformance is superior.
For achieving the above object, Rapid train headstock structure of the present invention, the profile of headstock is streamlined, the head of described headstock is a rotary body nose cone, the spoiler of one plow-shape is set in the below of described nose cone, nose cone and spoiler form a guide trough structure jointly, described nose cone connects the drivers' cab of a wedge shape, the windscreen of an elliposoidal is projected upwards on the top of described drivers' cab, seamlessly transit between described nose cone, drivers' cab and windscreen, the surface configuration of described nose cone is formed around horizontal rotational shaft by a Bezier.
Height h bottom described nose cone distance between center line headstock accounts for the 1/4-1/3 of headstock overall height H.
Described windscreen is 20 °-35 ° relative to the end face inclination angle upwards of the drivers' cab of wedge shape.
The length l of described nose cone accounts for the 10%-20% of headstock total length L, is wherein preferably 15%.
To sum up content, Rapid train headstock structure of the present invention, the nose cone of headstock head is rotary body, contribute to reducing air drag, and by the Proper Match of guiding gutter, make nose cone punish stream wind speed entirety and become little, air-flow trend homogenising, reduce flow separation, contribute to the both sides most of air-flow being guided into vehicle body upper portion and car body simultaneously, most of air-flow is avoided to enter lower car body gap and bogie region, thus effectively reduce air drag, in addition, windscreen has an inclination angle upwards and seamlessly transits with drivers' cab, not only can reduce aerodynamic noise herein, the visual field of driver and the inner space of drivers' cab can also be increased.By to the isostructural Proper Match of nose cone, spoiler, drivers' cab and windscreen, make car load aeroperformance more superior.
Accompanying drawing explanation
Fig. 1 structural representation of the present invention;
The A direction view of Fig. 2 Fig. 1.
As depicted in figs. 1 and 2, nose cone 1, spoiler 2, drivers' cab 3, windscreen 4, inclination angle 5, car body section 6.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As depicted in figs. 1 and 2, Rapid train headstock structure of the present invention, the monnolithic case of headstock is streamlined, contributes to reducing air drag.Particularly, vehicle head structure is divided into four parts, nose cone 1 respectively, spoiler 2, drivers' cab 3 and windscreen 4, all seamlessly transit between each part, seamlessly transit between vehicle head part and car body section 6, in addition, car head construction also comprises the lookout window (not shown) be positioned on the side wall of drivers' cab 3 both sides, and the structure such as car light (not shown).
Wherein, nose cone 1 is the head of headstock, and the surface of nose cone 1 is rotary body, and it is by the horizontal rotational shaft of a Bezier around nose cone 1 center.The nose cone 1 of such formation is sharper, and front face area is less, can reduce air-flow when vehicle high-speed runs and, to the direct shock zone in headstock portion, and can reduce the diffusion district of generation.
Height h bottom nose cone 1 distance between center line headstock accounts for the 1/4-1/3 of headstock overall height H, contributes to the top most of air-flow being guided into car body, avoids most of air-flow to enter lower car body gap and bogie region, thus effectively reduces air drag.
Arrange the spoiler 2 of a plow-shape in the below of nose cone 1, spoiler 2 profile and the nose cone 1 of plow-shape match, and contribute to the flow velocity slowing down nose cone 1 underlying gas.The lower surface of nose cone 1 and spoiler 2 form a guide trough structure jointly, this flow-guiding structure is a guide trough structure to lower recess, the air that it can be directed to flow past nose cone 1 bottom is discharged by the both sides of car body, instead of discharged by the bottom of car body, like this, the aerodynamic drag of car load can further be reduced.
Nose cone 1 connects drivers' cab 3, in order to reduce air drag, drivers' cab 3 is in elongated wedge shape, seamlessly transit between nose cone 1 and drivers' cab 3, the windscreen 4 of an elliposoidal is projected upwards on the top of drivers' cab 3, seamlessly transit between drivers' cab 3 and windscreen 4, connection body after drivers' cab 3, seamlessly transits between drivers' cab 3 and car body section 6.
Windscreen 4 has an inclination angle 5 upwards relative to the end face of the drivers' cab 3 of wedge shape, and inclination angle 5 is not easily excessive or too small, and crossing conference increases air drag, and the too small visual field that can affect driver, through lot of experiments, inclination angle 5 is preferably between 20 °-35 °.The windscreen 4 of the spheroid shape projected upwards not only can improve the visual field of driver, can increase the inner space of whole drivers' cab 3 simultaneously, make the working environment of driver more comfortable.
In the head dummy parameter of headstock, have an important parameter to be exactly slenderness ratio, slenderness ratio refers to the length of headstock front end nose cone 1 and the ratio of headstock rear portion vehicle body cross sectional radii.Two bullet trains in mutual intersection time, meeting hourly velocity is higher, the intensity of Train Crossing Pressure Waves is also larger, but Train Crossing Pressure Waves amplitude approximately linearly significantly can reduce along with the increase of head slenderness ratio, in order to effectively reduce the pressure intensity of wave that bullet train meeting causes, just the head design of the headstock of bullet train is become slender type.
The present embodiment is through accurate measuring and calculating, and the length l of nose cone 1 preferably accounts for the 10%-20% of headstock total length L, and preferred numerical value is then 15% further.General speed per hour is at the bullet train of 380km/h, and the total length L of its headstock is approximately about 12 meters, and the length of nose cone 1 can not be oversize or too short, the oversize Rigidity and strength that can affect whole vehicle head structure, also can affect the staffing in other compartment simultaneously.
As mentioned above, plan content given in conjunction with the accompanying drawings and embodiments, can derive similar technical scheme.In every case be the content not departing from technical solution of the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (5)
1. a Rapid train headstock structure, the profile of described headstock is streamlined, it is characterized in that: the head of described headstock is a rotary body nose cone (1), the spoiler (2) of one plow-shape is set in the below of described nose cone (1), described nose cone (1) and spoiler (2) form a guide trough structure jointly, described nose cone (1) connects the drivers' cab (3) of a wedge shape, the windscreen (4) of an elliposoidal is projected upwards on the top of described drivers' cab (3), described nose cone (1), seamlessly transit between drivers' cab (3) and windscreen (4), the surface configuration of described nose cone (1) is formed around horizontal rotational shaft by a Bezier.
2. Rapid train headstock structure according to claim 1, is characterized in that: the height h bottom described nose cone (1) distance between center line headstock accounts for the 1/4-1/3 of headstock overall height H.
3. Rapid train headstock structure according to claim 1, is characterized in that: described windscreen (4) is 20 °-35 ° relative to the end face inclination angle upwards (5) of the drivers' cab (3) of wedge shape.
4. Rapid train headstock structure according to claim 1, is characterized in that: the length l of described nose cone (1) accounts for the 10%-20% of headstock total length L.
5. Rapid train headstock structure according to claim 4, is characterized in that: the length l of described nose cone (1) accounts for 15% of headstock total length L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110121410.8A CN102774391B (en) | 2011-05-11 | 2011-05-11 | Locomotive structure of high-speed train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110121410.8A CN102774391B (en) | 2011-05-11 | 2011-05-11 | Locomotive structure of high-speed train |
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| Publication Number | Publication Date |
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| CN102774391A CN102774391A (en) | 2012-11-14 |
| CN102774391B true CN102774391B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110121410.8A Active CN102774391B (en) | 2011-05-11 | 2011-05-11 | Locomotive structure of high-speed train |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105416308A (en) * | 2015-12-10 | 2016-03-23 | 上海洲跃生物科技有限公司 | Device for increasing high speed train adhesive force |
| US10442447B2 (en) * | 2017-03-17 | 2019-10-15 | Bombardier Transportation Gmbh | Seating arrangement for a front end of a monorail car |
| CN107169171A (en) * | 2017-04-20 | 2017-09-15 | 中车青岛四方机车车辆股份有限公司 | A kind of EMUs head dummy design method |
| CN107757637A (en) * | 2017-11-24 | 2018-03-06 | 宝鸡中车时代工程机械有限公司 | Suitable for the rail-defect detector car of high-speed railway |
| CN109968993A (en) * | 2018-12-04 | 2019-07-05 | 中车青岛四方机车车辆股份有限公司 | Bottom diversion device, maglev train, bottom diversion device control method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201198307Y (en) * | 2008-08-05 | 2009-02-25 | 铁道部运输局 | Highly airtight rail vehicle body |
| CN201472390U (en) * | 2009-08-11 | 2010-05-19 | 南车青岛四方机车车辆股份有限公司 | Transition hoods for rail vehicle cabs |
| CN202071837U (en) * | 2011-05-11 | 2011-12-14 | 铁道部运输局 | Rapid train headstock structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0699808A (en) * | 1992-09-17 | 1994-04-12 | Hitachi Ltd | Streamlined vehicle frame construction method |
| JP3184904B2 (en) * | 1997-07-04 | 2001-07-09 | 川崎重工業株式会社 | Manufacturing method of composite structure of leading car in high-speed train |
-
2011
- 2011-05-11 CN CN201110121410.8A patent/CN102774391B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201198307Y (en) * | 2008-08-05 | 2009-02-25 | 铁道部运输局 | Highly airtight rail vehicle body |
| CN201472390U (en) * | 2009-08-11 | 2010-05-19 | 南车青岛四方机车车辆股份有限公司 | Transition hoods for rail vehicle cabs |
| CN202071837U (en) * | 2011-05-11 | 2011-12-14 | 铁道部运输局 | Rapid train headstock structure |
Non-Patent Citations (1)
| Title |
|---|
| 地铁列车车头绕流场的仿真计算与分析;张建润等;《铁道机车车辆》;20080425;第28卷(第02期);43-47 * |
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| Publication number | Publication date |
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| CN102774391A (en) | 2012-11-14 |
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| CB02 | Change of applicant information |
Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Applicant after: CHINA RAILWAY CORPORATION Applicant after: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. Address before: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Applicant before: Transport Bureau of Railway Department Applicant before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: TRANSPORT BUREAU OF RAILWAY DEPARTMENT TO: CHINA RAILWAY CORPORATION |
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Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Patentee after: CHINA RAILWAY CORPORATION Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Patentee before: CHINA RAILWAY CORPORATION Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |