CN110276085A - A kind of calculation method of superelevation of outer rail height - Google Patents
A kind of calculation method of superelevation of outer rail height Download PDFInfo
- Publication number
- CN110276085A CN110276085A CN201810216082.1A CN201810216082A CN110276085A CN 110276085 A CN110276085 A CN 110276085A CN 201810216082 A CN201810216082 A CN 201810216082A CN 110276085 A CN110276085 A CN 110276085A
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- Prior art keywords
- superelevation
- outer rail
- track
- rail height
- calculating
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a kind of methods of the calculating of superelevation of outer rail height, the especially existing Rail Transit System in city.The present invention provides a kind of calculation methods, it is according to the design parameter of track circuit curve, vehicle and the parameter of operation, superelevation of outer rail is set by recalculating and designing, by adjusting track geometry, car body is made to generate one and centrifugal force sizableness, contrary power.The centrifugal force generated in the hope of balancing vehicle in curve under the premise of not changing operational railway traffic route and moving towards reduces the abrasion between wheel track, improves traffic safety to realize perfect matching between track and wheel.
Description
Technical field
The present invention relates to a kind of methods of superelevation of outer rail height, the especially existing Rail Transit System in city.
Background technique
The Underground Rail Transit system of the most of Rail Transit Systems of active service, especially super-large city, because being laid out by road network
Or the limitation on ground pile basis has to build track circuit at tortuous detour.Due to not taking enough skills
Art safeguard procedures result in vehicle curve section operation when wheel and track between it is asynchronous, not only cause between wheel track
Sharp wear, over time when the abrasion of wheel track exceed critical value when be also possible to jeopardize traffic safety.
Summary of the invention
For the defect of above-mentioned Rail Transit System, the present invention is intended to provide a kind of both can solve between wheel and track
It is asynchronous and rail traffic traffic safety method can be improved.
In order to achieve the above object, the present invention provides a kind of solutions, it joins according to the design of track circuit curve
Number, vehicle and operation parameter, by recalculating and designing, under the premise of not changing operational railway traffic route and move towards and
Vehicle perfect matching reduces the abrasion between wheel track, improves traffic safety.
The present invention has a characteristic that relative to existing rail line
According to recalculating and designing, rail line modification scheme is worked out, realizes rail line curve section
With vehicle match, reduces the abrasion between wheel track, improves traffic safety；
Operational railway traffic route trend is not changed；
Rail traffic vehicles can be properly increased in the running speed of curve section；
Therefore, by implement this solution can realize reduce wheel track between abrasion, improve traffic safety, improve track
Multiple mesh of the vehicular traffic in the running speed of curve section.
With reference to the accompanying drawing and specific embodiment elaborates to the present invention.
Detailed description of the invention
Attached drawing is that Rail Transit System calculates superelevation of outer rail height and the symbol generation in the schematic diagram attached drawing of centripetal force relationship
The meaning of table is as follows:
P --- vehicle self gravity
Counter-force of Q --- the track to vehicle
The resultant force that Fn --- vehicle self gravity P and track form the counter-force Q of vehicle, i.e. centripetal force
S --- inside and outside rail head centre distance
H --- required superelevation of outer rail height
Specific embodiment
It is described in detail with reference to the accompanying drawing:
When object is when doing curvilinear motion, inertia can drive object to continue to advance towards the tangential direction of motion profile, because
This, which will receive a centrifugal force contrary with the center of circle.It is similarly in the vehicle of curve motion under the influence of centrifugal force
It can be tilted to the opposite direction in the center of circle.In order to guarantee the safety of train operation, we should be according to calculating and design result tune
Whole track geometry is allowed to generate one and centrifugal force sizableness, contrary power, this can not only alleviate between wheel track
Sharp wear and also inherently eliminate traffic safety hidden danger.
The centrifugal force that the vehicle theoretically run on curve generates are as follows:
J=Pv2/gr (1)
Since setting superelevation of outer rail rolls car body tiltedly to the curve center of circle, car body gravity P and track are to the counter-force Q's of vehicle
The centripetal force that resultant force is formed is that Fn=Ph/s (2) can obtain h=sv as Fn=J2/ gr=11.8V2/r (3)
The method comprise the steps that H=KV2/r (4)
In above-mentioned formula:
G acceleration of gravity, 9.8m/s2；
R sweep, m；
Rail head centre distance inside and outside s, takes 1500mm；
V, V running speed, v unit are m/s, and V unit is km/h；
Superelevation of outer rail height needed for h, mm；
The superelevation of outer rail height that H calculation method of the present invention obtains, mm；
K calculation method of the present invention calculates parameter used by superelevation of outer rail height.
Claims (5)
1. a kind of method of the calculating of superelevation of outer rail height, comprising: the present invention calculates used parameter K when superelevation of outer rail height
Value, adjust superelevation of outer rail height method, it is characterized in that: according to the design parameter, vehicle and train of track circuit curve
The parameter of operation, the method that superelevation of outer rail height is obtained using calculation method of the present invention and adjusts superelevation height, and then realize
Do not change the perfect matching under the premise of existing rail line moves towards between track and wheel, reduces the mill between wheel track
Damage improves traffic safety.
2. the method for the calculating of superelevation of outer rail height according to claim 1, it is characterised in that: calculate the side of superelevation of outer rail
Method.
3. the method for the calculating of superelevation of outer rail height according to claim 1, it is characterised in that: calculation method meter of the present invention
Calculate parameter K used by superelevation of outer rail height.
4. the method for the calculating of superelevation of outer rail height according to claim 1, it is characterised in that: adjustment rail superelevation is high
The design method of degree.
5. the method for the calculating of superelevation of outer rail height according to claim 1, it is characterised in that: adjustment rail superelevation is high
The construction method of degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810216082.1A CN110276085A (en) | 2018-03-15 | 2018-03-15 | A kind of calculation method of superelevation of outer rail height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810216082.1A CN110276085A (en) | 2018-03-15 | 2018-03-15 | A kind of calculation method of superelevation of outer rail height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110276085A true CN110276085A (en) | 2019-09-24 |
Family
ID=67957759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810216082.1A Pending CN110276085A (en) | 2018-03-15 | 2018-03-15 | A kind of calculation method of superelevation of outer rail height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110276085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112231834A (en) * | 2020-10-16 | 2021-01-15 | 湖北文理学院 | Rail-based anti-derailing method and device, rail vehicle and storage medium |
| CN113158327A (en) * | 2021-02-20 | 2021-07-23 | 西南交通大学 | Ultrahigh dynamic design method for high-speed railway curve with speed per hour of 400km and above |
-
2018
- 2018-03-15 CN CN201810216082.1A patent/CN110276085A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112231834A (en) * | 2020-10-16 | 2021-01-15 | 湖北文理学院 | Rail-based anti-derailing method and device, rail vehicle and storage medium |
| WO2021179676A1 (en) * | 2020-10-16 | 2021-09-16 | 湖北文理学院 | Railway-based derailment prevention method and device, and railway vehicle and storage medium |
| CN112231834B (en) * | 2020-10-16 | 2022-05-13 | 湖北文理学院 | Rail-based anti-derailing method and device, rail vehicle and storage medium |
| CN113158327A (en) * | 2021-02-20 | 2021-07-23 | 西南交通大学 | Ultrahigh dynamic design method for high-speed railway curve with speed per hour of 400km and above |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190924 |
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| WD01 | Invention patent application deemed withdrawn after publication |