CN102682164B - A kind of high-speed motion train real-time attitude simulation method - Google Patents
A kind of high-speed motion train real-time attitude simulation method Download PDFInfo
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- CN102682164B CN102682164B CN201210129573.5A CN201210129573A CN102682164B CN 102682164 B CN102682164 B CN 102682164B CN 201210129573 A CN201210129573 A CN 201210129573A CN 102682164 B CN102682164 B CN 102682164B
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Abstract
The present invention a kind of high-speed motion train real-time attitude simulation method relates to a kind of method that attitude real-time to high-speed motion train carries out analogue simulation.First train is divided into some by the method, and the attitude-simulating of train is converted into the attitude-simulating of every a part of train；Then, in the case of known to train head's mileage, the computational methods of the mileage of every a part of train central point are determined；Finally according to the geometric properties of every a part of train central spot track, determine the real-time attitude simulation method of this part train.The present invention has that calculating is simple, precise and high efficiency, practical advantage, can be used for attitude real-time to high-speed motion train and is simulated research, the operation security improving high-speed railway is had positive role.
Description
Technical field
The present invention relates to a kind of method that attitude real-time to high-speed motion train carries out analogue simulation, can be used for fortune at a high speed
The dynamic real-time attitude of train is simulated research.
Background technology
High-speed railway is in the stage of fast development in China, and the real-time attitude of high-speed motion train is for high-speed railway
Real-time monitoring, operation security etc. there is important function.But during the actual operation of high-speed railway, owing to monitoring device becomes
The reason of the aspects such as basis, the rate of information throughput, obtains the real-time attitude of high-speed motion train and does not satisfies the requirements.Simultaneously because calculate
The maturation of machine simulation technology, uses computer simulation technique attitude real-time to high-speed motion train to carry out dynamic analog and has
Feasibility, so high-speed motion train real-time attitude simulation method has bigger Research Significance and practical value.
Summary of the invention
The present invention is used for realizing high-speed motion train real-time attitude simulation, can be by lively for real-time for high-speed motion train attitude
Auxiliary high-speed railway out, is monitored and improves high-speed railway operation peace by image, space and time continuous, omnibearing stereo simulation in real time
There is important function entirely.
It is an object of the invention to: propose a kind of high-speed motion train real-time attitude simulation method, the method has calculating letter
List, precise and high efficiency, practical advantage.
A kind of high-speed motion train real-time attitude simulation method is as follows:
(1) train model is divided into from headstock to the tailstock n part, thus the attitude-simulating of train is converted into each portion
Divide the attitude-simulating of train.(seeing accompanying drawing 1)
(2) train length is d, and every a part of train length isThe mileage that train head receives is S0, then the i-th (i=
1,2 ..., the n) mileage that part train central spot is corresponding
(3) in bullet train motor process, at real-time mileage S, the real-time attitude simulation method of every a part of train
As follows:
1) this part train central point is h to the distance of left and right orbit centre point line, the water of two orbit centre point lines
The straight angleWherein v is desin speed, and g is acceleration of gravity, and r is orbital curve radius, orbital curve tangent line side
It is α to angle.(seeing accompanying drawing 2, accompanying drawing 3)
2) coordinate of left side orbit centre point L is (xL, yL, zL), the coordinate (x of the right track central point RR, yR, zR), should
The coordinate of part train central point O is
3) this part train is nodded angle beta=0, and shake the head angle ψ=α, angle of roll φ=θ.
The principle of the present invention is: first train is divided into some, thus is converted into often by the attitude-simulating of train
The attitude-simulating of a part of train；Then, in the case of known to train head's mileage, every a part of train central point is determined
The computational methods of mileage；Finally according to the geometric properties of every a part of train central spot track, determine the reality of this part train
Time attitude simulation method.
Present invention advantage compared with prior art is:
(1) if train is divided into stem portion, every a part of train uses identical real-time attitude simulation method, simplifies
The difficulty of bullet train real-time attitude simulation, improves the degree of accuracy of simulation simultaneously.
(2) high-speed cruising train real-time attitude simulation is carried out according to the curvilinear characteristic of track and the geometric properties of train, tool
Have and calculate simple, the feature of lifelike image, practicality and high efficiency.
Accompanying drawing explanation
Fig. 1 train is divided into n partial schematic diagram
Fig. 2 train central point is to left and right orbit centre point line distance h and two orbit centres point line horizontal angle θ schematic diagram
Fig. 3 orbital curve tangent directional angle is α schematic diagram
Fig. 4 high-speed motion train real-time attitude simulation design sketch
Detailed description of the invention
Below as a example by simulating a certain real-time attitude of high-speed motion train, illustrate detailed description of the invention.
(1) train model is divided into from headstock to the tailstock n=100 part, thus the attitude-simulating of train is converted into
The attitude-simulating of every a part of train.
(2) train length is d=80m, and every a part of train length isThe mileage that train head receives is S0=
120km, then i-th (i=1,2 ..., the n) mileage that part train central spot is corresponding
(3) in bullet train motor process, at real-time mileage S=119.996km (i=10) place, the i-th=10 part row
The real-time attitude simulation method of car is as follows:
1) this part train central point is h=2.5m to the distance of left and right orbit centre point line, and 2 orbit centre points are even
The horizontal angle of lineWherein v=360km/h=100m/s is design speed
Degree, g=10m/s2Being acceleration of gravity, r=3000m is orbital curve radius, and orbital curve tangent directional angle is
2) coordinate of left side orbit centre point L is (xL, yL, zL)=(12,6,5), the coordinate (x of the right track central point RR, yR, zR)=(13.5,6,
5.5), the coordinate of this part train central point O is
3) this part train is nodded angle beta=0, angle of shaking the headAngle of roll φ=θ=0.3398.
High-speed motion train real-time attitude simulation design sketch is shown in accompanying drawing 4.
The content not being described in detail in description of the invention belongs to prior art known to professional and technical personnel in the field.
Claims (6)
1. a high-speed motion train real-time attitude simulation method, it is characterised in that said method comprising the steps of:
(1) train model is divided into from headstock to the tailstock some, thus the attitude-simulating of train is converted into each portion
Divide the attitude-simulating of train；
(2) in the case of known to train length and train head's mileage, the length of every a part of train and every part are determined
The mileage that train central spot is corresponding；
(3), in bullet train motor process, at the mileage corresponding to every a part of train central point, the geometry according to track is special
Levy, the coordinate of train running speed and left and right orbit centre point determines the coordinate of this part train central point；
(4) the some brilliance of train, angle of shaking the head, angle of roll assignment are become orbit parameter, determine the real-time attitude of this part train, so
After the real-time attitude space-time of every a part of train connected can the real-time attitude of omnibearing stereo simulation high-speed motion train.
High-speed motion train real-time attitude simulation method the most according to claim 1, it is characterised in that in step 1, will row
Vehicle model is divided into n part from headstock to the tailstock, thus the attitude-simulating of train is converted into the attitude mould of every a part of train
Intend.
High-speed motion train real-time attitude simulation method the most according to claim 1, it is characterised in that in step 2, train
A length of d, the mileage that train head receives is S0Time, every a part of train length isThen i-th (i=1,2 ..., n) portion
Divide the mileage that train central spot is corresponding
High-speed motion train real-time attitude simulation method the most according to claim 1, it is characterised in that in step 3, the i-th (i
=1,2 ..., n) part train is at real-time mileage S, the distance of this part train central point to left and right orbit centre point line
For h, the horizontal angle of two orbit centre point linesOrbital curve tangent directional angle is α, and wherein, v is design speed
Degree, g is acceleration of gravity, and r is orbital curve radius.
High-speed motion train real-time attitude simulation method the most according to claim 1, it is characterised in that in step 3, the i-th (i
=1,2 ..., n) coordinate of part train left side orbit centre point L is (xL, yL, zL), the coordinate of the right track central point R is
(xR, yR, zR), then the coordinate of this part train central point O is
High-speed motion train real-time attitude simulation method the most according to claim 1, it is characterised in that in step 4, it is assumed that
Train wheel and track are in close contact, and do not have a motion of nodding, then i-th (i=1,2 ..., n) part train nod angle beta=
0；The angle of shaking the head of train, angle of roll assignment are become orbit parameter, and shake the head angle Ψ=α, 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 |
|---|---|
| CN102682164A CN102682164A (en) | 2012-09-19 |
| CN102682164B true CN102682164B (en) | 2016-11-30 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666716A (en) * | 2009-06-05 | 2010-03-10 | 中南大学 | Railway locomotive running attitude measuring method |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666716A (en) * | 2009-06-05 | 2010-03-10 | 中南大学 | Railway locomotive running attitude measuring method |
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Granted publication date: 20161130 Termination date: 20170428 |