CN102682164A - Real-time attitude simulation method for high-speed moving train - Google Patents
Real-time attitude simulation method for high-speed moving train Download PDFInfo
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- CN102682164A CN102682164A CN2012101295735A CN201210129573A CN102682164A CN 102682164 A CN102682164 A CN 102682164A CN 2012101295735 A CN2012101295735 A CN 2012101295735A CN 201210129573 A CN201210129573 A CN 201210129573A CN 102682164 A CN102682164 A CN 102682164A
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Abstract
The invention provides a real-time attitude simulation method for a high-speed moving train, and relates to a method for artificially simulating real-time attitudes of the high-speed moving train. The method comprises the steps as follows: firstly, the train is equally divided into a plurality of parts, and attitude simulation of the train is converted to attitude simulation of each part of the train; afterwards, under the circumstance that the mileage of the head of the train is already known, a calculation method of the mileage of the central point of each part of the train is determined; and finally, a real-time attitude simulation method of each part of the train is determined according to geometrical characteristics of a track at the central point of each part of the train. The real-time attitude simulation method has the advantages of simple calculation, accuracy, high efficiency and high practicality, can be used for simulating and studying the real-time attitudes of the high-speed moving train, and achieves a positive effect on the improvement of the operation safety of a high-speed railway.
Description
Technical field
The present invention relates to a kind of the real-time attitude of high-speed motion train carried out the method for analogue simulation, can be used for the real-time attitude of high-speed motion train is carried out modeling effort.
Background technology
High-speed railway is in the fast-developing stage in China, and the real-time attitude of high-speed motion train has vital role for the real-time monitoring of high-speed railway, operation security etc.But in the actual operation process of high-speed railway, because aspects such as watch-dog cost, the rate of information throughput obtain the real-time attitude of high-speed motion train and also do not satisfy the requirements.Owing to the maturation of computer simulation technology, adopt computer simulation technique that the real-time attitude of high-speed motion train is carried out dynamic similation and have feasibility, simultaneously so the real-time attitude-simulating method of high-speed motion train has bigger Research Significance and practical value.
Summary of the invention
The present invention is used to realize the real-time attitude-simulating of high-speed motion train; Can the real-time attitude of high-speed motion train is vivid, space and time continuous, omnibearing stereo simulation come out, to the monitoring in real time of auxiliary high-speed railway with improve the high-speed railway operation security and have vital role.
The objective of the invention is: propose the real-time attitude-simulating method of a kind of high-speed motion train, this method has calculates simple, precise and high efficiency, practical advantage.
The real-time attitude-simulating method of a kind of high-speed motion train is following:
(1) train model is divided into the n part from the headstock to the tailstock, thereby the attitude-simulating of train is converted into the attitude-simulating of each part train.(referring to accompanying drawing 1)
(2) train length is d, and each part train length does
The mileage that the train head receives is S
0, then i (i=1,2 ..., n) the corresponding mileage of part train central spot
(3) in the bullet train motion process, at real-time mileage S place, the real-time attitude-simulating method of each part train is following:
1) distance of this part train central point orbit centre point line to the left and right sides is h; The horizontal angle of two orbit centre point lines
wherein v is a design rate; G is an acceleration of gravity; R is the orbital curve radius, and the orbital curve tangent directional angle is α.(referring to accompanying drawing 2, accompanying drawing 3)
2) coordinate of left side orbit centre point L is (x
L, y
L, z
L), the coordinate (x of the right track central point R
R, y
R, z
R), the coordinate of this part train central point O does
3) this part train angle β=0 of nodding, the angle ψ=α that shakes the head, angle of roll φ=θ.
Principle of the present invention is: at first train is divided into a plurality of parts, thereby the attitude-simulating of train is converted into the attitude-simulating of each part train; Under the known situation of train head's mileage, confirm the computing method of the mileage of each part train central point then; According to the geometric properties of each part train central spot track, confirm the real-time attitude-simulating method of this part train at last.
The present invention's advantage compared with prior art is:
(1) train is divided into several portions, each part train adopts identical real-time attitude-simulating method, has simplified the difficulty of the real-time attitude-simulating of bullet train, has improved the degree of accuracy of simulation simultaneously.
(2) carry out the real-time attitude-simulating of high-speed cruising train according to the curvilinear characteristic of track and the geometric properties of train, have the advantages that to calculate simple, lifelike image, practicality and high efficiency.
Description of drawings
Fig. 1 train is divided into n part synoptic diagram
Fig. 2 train central point is to left and right sides orbit centre point line distance h and two orbit centre point line horizontal angle θ synoptic diagram
Fig. 3 orbital curve tangent directional angle is the α synoptic diagram
The real-time attitude-simulating design sketch of Fig. 4 high-speed motion train
Embodiment
Be example to simulate the real-time attitude of a certain high-speed motion train below, set forth embodiment.
(1) train model is divided into the n=100 part from the headstock to the tailstock, thereby the attitude-simulating of train is converted into the attitude-simulating of each part train.
(2) train length is d=80m, and each part train length does
The mileage that the train head receives is S
0=120km, then i (i=1,2 ..., n) the corresponding mileage of part train central spot
(3) in the bullet train motion process, to locate at real-time mileage S=119.996km (i=10), the real-time attitude-simulating method of i=10 part train is following:
1) distance of this part train central point orbit centre point line to the left and right sides is h=2.5m, the horizontal angle of two orbit centre point lines
Wherein v=360km/h=100m/s is a design rate, g=10m/s
2Be acceleration of gravity, r=3000m is the orbital curve radius, and the orbital curve tangent directional angle does
2) coordinate of left side orbit centre point L is (x
L, y
L, z
L)=(12,6,5), the coordinate (x of the right track central point R
R, y
R, z
R)=(13.5,6,5.5), the coordinate of this part train central point O does
3) this part train angle β=0 of nodding, angle of roll φ=θ=0.3398, the angle of shaking the head
.
The real-time attitude-simulating design sketch of high-speed motion train is seen accompanying drawing 4.
The content of not doing in the instructions of the present invention to describe in detail belongs to this area professional and technical personnel's known prior art.
Claims (6)
1. real-time attitude-simulating method of high-speed motion train is characterized in that said method comprising the steps of:
(1) train model is divided into a plurality of parts from the headstock to the tailstock, thereby the attitude-simulating of train is converted into the attitude-simulating of each part train.
(2) under the known situation of train length and train head's mileage, confirm the length mileage corresponding of each part train with each part train central spot.
(3) in the bullet train motion process, the pairing mileage of each part train central point place confirms the coordinate of this part train central point according to the coordinate of geometric properties, train running speed and the left and right sides orbit centre point of track.
(4) the some brilliance of train, the angle of shaking the head, angle of roll assignment are become orbit parameter, confirm the real-time attitude of this part train, the real-time attitude space-time with each part train connects and can simulate the real-time attitude of high-speed motion train by omnibearing stereo then.
2. the real-time attitude-simulating method of high-speed motion train according to claim 1 is characterized in that in the step 1, train model is divided into the n part from the headstock to the tailstock, thereby the attitude-simulating of train is converted into the attitude-simulating of each part train.
3. the real-time attitude-simulating method of high-speed motion train according to claim 1; It is characterized in that in the step 2; Train length is d; When the mileage that the train head receives is S0; Each part train length is
then i (i=1; 2 ..., n) the corresponding mileage
of part train central spot
4. the real-time attitude-simulating method of high-speed motion train according to claim 1; It is characterized in that in the step 3 i (i=1,2; ...; N) the part train is at real-time mileage S place, and the distance of this part train central point orbit centre point line to the left and right sides is h, and the horizontal angle of two orbit centre point lines
orbital curve tangent directional angle is α; Wherein, V is a design rate, and g is an acceleration of gravity, and r is the orbital curve radius.
5. the real-time attitude-simulating method of high-speed motion train according to claim 1 is characterized in that in the step 3, i (i=1,2 ..., n) coordinate of part train left side orbit centre point L is (x
L, y
L, z
L), the coordinate of the right track central point R is (x
R, y
R, z
R), then the coordinate of this part train central point O does
6. the real-time attitude-simulating method of high-speed motion train according to claim 1 is characterized in that in the step 4, supposes that train wheel closely contacts with track; To nod motion, the motion of nodding is very small, then i (i=1; 2 ..., n) part train angle β=0 of nodding; The angle of shaking the head, the angle of roll assignment of train are become orbit parameter, the angle ψ=α that shakes the head, angle of roll φ=θ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210129573.5A CN102682164B (en) | 2012-04-28 | A kind of high-speed motion train real-time attitude simulation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210129573.5A CN102682164B (en) | 2012-04-28 | A kind of high-speed motion train real-time attitude simulation method |
Publications (2)
| Publication Number | Publication Date |
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| CN102682164A true CN102682164A (en) | 2012-09-19 |
| CN102682164B CN102682164B (en) | 2016-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056382A (en) * | 2020-07-30 | 2022-02-18 | 比亚迪股份有限公司 | Rail vehicle, inclination angle determination method, device, system and medium thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070094168A1 (en) * | 2005-07-29 | 2007-04-26 | The Florida International University Board Of Trustees | Artificial neural network design and evaluation tool |
| CN101666716A (en) * | 2009-06-05 | 2010-03-10 | 中南大学 | Railway locomotive running attitude measuring method |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070094168A1 (en) * | 2005-07-29 | 2007-04-26 | The Florida International University Board Of Trustees | Artificial neural network design and evaluation tool |
| CN101666716A (en) * | 2009-06-05 | 2010-03-10 | 中南大学 | Railway locomotive running attitude measuring method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056382A (en) * | 2020-07-30 | 2022-02-18 | 比亚迪股份有限公司 | Rail vehicle, inclination angle determination method, device, system and medium thereof |
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