CN107092711A - A kind of dynamics collaborative simulation analysis system and method for track - Google Patents
A kind of dynamics collaborative simulation analysis system and method for track Download PDFInfo
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Abstract
The invention discloses a kind of dynamics collaborative simulation analysis system for track, it is characterised in that the system includes：Vehicle analysis platform, for setting up auto model, generates auto model information；Orbit analysis platform, for setting up model trajectory, generates model trajectory information；Cooperative Analysis platform, for generating train-track system model information according to the auto model information and the model trajectory information, the equation of motion is built to the train-track system model information, solution obtains dynamic response data, the present invention discloses a kind of dynamics collaborative simulation analysis method for track, a kind of advantage for being capable of synthetic finite meta analysis software and many-body dynamics software can be provided, the Dynamics Simulation Analysis System and method for of Coupled Rigid-flexible is accurately and rapidly carried out to track.
Description
Technical field
The present invention relates to railway construction simulation analysis field.Cooperateed with more particularly, to a kind of dynamics for track
Simulation analysis system and method.
Background technology
With the high speed development of railway construction, in order to accelerate railway abutment speed, China Express Railway construction using it is short,
Suitable, straight route selection principle.In high speed railway construction consider different infrastructures bring operation, maintenance, repair the problems such as,
Need to use different track structures, it is contemplated that the condition such as varying environment, landform, the load that track structure is born is therewith not yet
Together.In order to ensure bullet train traveling comfort and security, the normal use of track structure and the durability of bridge tunnel,
It is particularly important for the train dynamics analysis under various environment.At present, domestic and foreign scholars are mainly soft by finite element
Part and many-body dynamics software are analyzed, and finite element software being capable of each structure of simulation, but calculating data are huge, speed in detail
Slowly, and can not accurate simulation wheel track coupled wave theory, many-body dynamics software calculating speed is fast, but can not Detailed simulation track foundation
Facility.
Accordingly, it is desirable to provide a kind of dynamics collaborative simulation analysis method and system for track, at a high speed, again
The track Coupled Rigid-flexible problem frequently encountered in load, field of urban rail Dynamics Simulation Analysis can be comprehensive there is provided one kind
The advantage of finite element analysis software and many-body dynamics software is closed, the dynamics of Coupled Rigid-flexible is accurately and rapidly carried out to track
The System and method for of simulation analysis.
The content of the invention
The invention solves the problems that a technical problem be to provide a kind of dynamics collaborative simulation analysis method for track,
The invention solves the problems that another technical problem be to provide a kind of dynamics collaborative simulation analysis system for track, with can
The advantage of synthetic finite meta analysis software and many-body dynamics software, accurately and rapidly carries out the power of Coupled Rigid-flexible to track
Learn simulation analysis.
In order to solve the above technical problems, the present invention uses following technical proposals：
One aspect of the present invention discloses a kind of dynamics collaborative simulation analysis system for track, it is characterised in that institute
The system of stating includes：
Vehicle analysis platform, for setting up auto model, generates auto model information；
Orbit analysis platform, for setting up model trajectory, generates model trajectory information；
Cooperative Analysis platform, for generating train-track system mould according to the auto model information and the model trajectory information
Type information, the equation of motion is built to the train-track system model information, and solution obtains dynamic response data.
Preferably, the vehicle analysis platform includes many-body dynamics software, and the orbit analysis platform includes finite element
Analysis software.
Preferably, the auto model includes car body, bogie and wheel pair.
Preferably, the model trajectory include rail model, fastener model, Sleeper model, railway roadbed model, stopping means with
And infrastructure model.
Preferably, the infrastructure model includes bridge model, roadbed model, tunnel model and transition segment model.
Preferably, the railway roadbed model includes tiny fragments of stone, coal, etc. model trajectory or non-fragment orbit model.
Preferably, the auto model information and model trajectory information include the geometry of auto model and model trajectory respectively
Parameter, physical parameter, free degree information, nodal information and unit information.
Preferably, the system, which carries out a step, includes post-processing module,
The post-processing module is used to draw dynamic response chart according to the dynamic response data and generates report file.
Another aspect of the present invention also discloses a kind of dynamics collaborative simulation analysis method for track, and its feature exists
In methods described includes：
S1：Auto model is set up by vehicle analysis platform, auto model information is generated；
S2：Model trajectory is set up by orbit analysis platform, model trajectory information is generated；
S3：Train-track system is generated according to the auto model information and the model trajectory information by Cooperative Analysis platform
Model information, the equation of motion is built to the train-track system model information, and solution obtains dynamic response data.
Preferably, methods described further comprises S4：Dynamic response chart and life are drawn according to the dynamic response data
Into report file.
Beneficial effects of the present invention are as follows：
The present invention combines the modeling advantage of finite element emulation software and the calculating advantage of many-body dynamics software to track
Carry out Dynamics Simulation Analysis, it is considered to the actual conditions of different track infrastructures, and accurately reflect wheel-rail contact relationship.Compare
Emulated only with many-body dynamics software, the present invention can consider shadow of the different track infrastructures to dynamic response in detail
Ring.Emulated compared to only with finite element software, the present invention is equipped with specific Wheel Rail Contact module, result of calculation is more defined
Really.In addition, the invention provides complete post-processing module, data processing voluntarily is carried out to the dynamic response of acquisition, from
It is dynamic to complete the statistical analysis of derailment coefficients, rate of wheel load reduction and maximum, and draw a diagram, generate report file.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows a kind of schematic diagram of dynamics collaborative simulation analysis system for track of the invention.
Fig. 2 shows a kind of flow chart of dynamics collaborative simulation analysis method for track of the invention.
Fig. 3 shows a kind of dynamics collaborative simulation analysis system for track of the invention and the car of method specific embodiment
Front view, the Left elevation and bottom view of model.
Fig. 4 shows a kind of dynamics collaborative simulation analysis system for track of the invention and the rail of method specific embodiment
The stereogram of road model.
Fig. 5 shows that a kind of dynamics collaborative simulation analysis system for track of the invention is solved with method specific embodiment
Obtained vertical wheel rail force.
Fig. 6 shows that a kind of dynamics collaborative simulation analysis system for track of the invention is solved with method specific embodiment
Obtained wheel-rail lateral force.
Fig. 7 shows that a kind of dynamics collaborative simulation analysis system for track of the invention is solved with method specific embodiment
Obtained derailment coefficients.
Fig. 8 shows that a kind of dynamics collaborative simulation analysis system for track of the invention is solved with method specific embodiment
Obtained rate of wheel load reduction.
Fig. 9 shows that a kind of dynamics collaborative simulation analysis system for track of the invention is solved with method specific embodiment
Obtained rail vertical deviation.
Figure 10 shows that a kind of dynamics collaborative simulation analysis system for track of the invention is asked with method specific embodiment
The rail vertical acceleration that solution is obtained
Embodiment
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
As shown in figure 1, the invention discloses a kind of dynamics collaborative simulation analysis system for track, the system bag
Include：Vehicle analysis platform, orbit analysis platform and Cooperative Analysis platform.
Wherein, the vehicle analysis platform is used to set up auto model, generates auto model information.It is preferred that, vehicle point
Analysis platform can set up auto model using many-body dynamics software, it is furthermore preferred that building for vehicle can be carried out using FORTRAN softwares
Mould.The auto model may include car body, bogie and wheel pair.
The orbit analysis platform is used to set up model trajectory, generates model trajectory information.The orbit analysis platform can
Including finite element analysis software, it is furthermore preferred that the modeling of track can be carried out using ABAQUS softwares.The model trajectory may include
Rail model, fastener model, Sleeper model, railway roadbed model, stopping means and infrastructure model.Wherein, the bottom base
Plinth model may include bridge model, roadbed model, tunnel model and transition segment model, and the railway roadbed model may include there is tiny fragments of stone, coal, etc. rail
Road model or non-fragment orbit model.
The Cooperative Analysis platform is used to generate track system according to the auto model information and the model trajectory information
System model information, the equation of motion is built to the train-track system model information, and solution obtains dynamic response data.Specifically, institute
State the model letter that Cooperative Analysis platform exports vehicle and track infrastructure by the method for secondary development and file interaction respectively
Breath, the then model information on the Cooperative Analysis platform for carrying Wheel Rail Contact module to two models of vehicle and track of importing
Matched, and build the equation of motion, carry out the renewal and iterative calculation of system information, obtain train by when caused power
Response data.The auto model information and model trajectory information can include the geometric parameters of auto model and model trajectory respectively
Number, physical parameter, free degree information, nodal information and unit information.The model information of two models after pairing may also comprise
Geometric parameter, physical parameter, free degree information, nodal information and unit information.
The dynamics collaborative simulation analysis system, which carries out a step, includes post-processing module, and the post-processing module is used for root
Dynamic response chart is drawn according to the dynamic response data and report file is generated, specifically, for entering to dynamic response data
Row data processing, realizes derailment coefficients, rate of wheel load reduction, the statistical analysis of maximum automatically, draws response chart, and generate report
Accuse file.
As shown in Fig. 2 the present invention discloses a kind of dynamics collaborative simulation analysis method for track, the side
Method includes：
S1：Auto model is set up by vehicle analysis platform, auto model information is generated.It is preferred that, it can be moved using many bodies
Machine software sets up auto model, it is furthermore preferred that the modeling of vehicle can be carried out using FORTRAN softwares.The auto model can
Including car body, bogie and wheel pair.
S2：Model trajectory is set up by orbit analysis platform, model trajectory information is generated.It is preferred that, finite element can be used
Software sets up model trajectory, it is furthermore preferred that the modeling of track can be carried out using ABAQUS softwares.The model trajectory may include steel
Rail model, fastener model, Sleeper model, railway roadbed model, stopping means and infrastructure model.Wherein, the infrastructure
Model may include bridge model, roadbed model, tunnel model and transition segment model, and the railway roadbed model may include Ballast track
Model or non-fragment orbit model.
S3：Train-track system is generated according to the auto model information and the model trajectory information by Cooperative Analysis platform
Model information, the equation of motion is built to the train-track system model information, and solution obtains dynamic response data.Specifically, passing through
The method of secondary development and file interaction exports the model information of vehicle and track infrastructure respectively, is then carrying wheel track
Contact and the model information of two models of vehicle and track of importing is matched on the Cooperative Analysis platform of module, and build fortune
Dynamic equation, carries out the renewal and iterative calculation of system information, obtain train by when caused dynamic response data.The vehicle
Model information and model trajectory information can include the geometric parameter of auto model and model trajectory, physical parameter, the free degree respectively
Information, nodal information and unit information.The model information of two models after pairing may also comprise geometric parameter, physical parameter,
Free degree information, nodal information and unit information.
Methods described further may include S4：Dynamic response chart is drawn according to the dynamic response data and report is generated
File.Specifically, carrying out data processing to dynamic response data, derailment coefficients, rate of wheel load reduction, the system of maximum are realized automatically
Meter analysis, draws response chart, and generate report file.
Come that the present invention is further illustrated below by a specific embodiment, certain bullet train is straight to exemplified by gap bridge
When, speed is 300km/h.The form of non-fragment orbit is used in the present embodiment, track slab pavement is on bedplate, bedplate laying
On bridge, bridge is steel box-girder, and specific implementation process is：First, auto model, the car are set up in many-body dynamics software
Model includes car body, bogie and wheel pair, as shown in Figure 3.Secondly, track infrastructure is set up in detail in finite element software
Model, the track infrastructure model includes rail, fastener, sleeper, non-fragment orbit and bridge, as shown in Figure 4.Again, exist
On the basis of many bodies, finite element software, by secondary development, the model information of vehicle and track infrastructure, institute are exported respectively
Stating model information includes：Geometric parameter, physical parameter, free degree information, nodal information and unit information.Closed by geometric parameter
Connection, makes the information of two models match the system model information for forming an entirety, the system model information bag on new platform
Include geometric parameter, physical parameter, free degree information, nodal information and unit information.Carrying the new platform of Wheel Rail Contact module
On, with reference to system model information build the equation of motion, carry out system information renewal and iterative calculation, obtain train by when draw
The dynamic response risen.Finally, each dynamic response for completing to obtain after the equation of motion is solved to cooperating simulation platform to carry out at data
Reason, realizes derailment coefficients, rate of wheel load reduction, the statistical analysis of maximum automatically, and draws response chart, generates report file.
The dynamic responses, the vertical active force of wheel track, wheel such as the vibration acceleration of track infrastructure, dynamic displacement can be obtained using this method
The index such as the response of the power such as rail horizontal force and derailment coefficients, off-load rate, experimental data calculates knot as shown in table 5- tables 10
Fruit is as shown in table 1.
The result of calculation of table 1
The result of calculation in table 1, derailment coefficients and rate of wheel load reduction be satisfied by require, track infrastructure it is vertical
Displacement is sequentially reduced from top to bottom, and the vertical deviation of bridge is minimum, and the vertical deviation of rail is maximum, as a result tallies with the actual situation.
Therefore, this example demonstrates that, the present invention can be used for carry out track Coupled Rigid-flexible dynamic characteristics analysis.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, all embodiments can not be exhaustive here, it is every to belong to this hair
Row of the obvious changes or variations that bright technical scheme is extended out still in protection scope of the present invention.
Claims (10)
1. a kind of dynamics collaborative simulation analysis system for track, it is characterised in that the system includes：
Vehicle analysis platform, for setting up auto model, generates auto model information；
Orbit analysis platform, for setting up model trajectory, generates model trajectory information；
Cooperative Analysis platform, believes for generating train-track system model according to the auto model information and the model trajectory information
Breath, the equation of motion is built to the train-track system model information, and solution obtains dynamic response data.
2. dynamics collaborative simulation analysis system according to claim 1, it is characterised in that the vehicle analysis platform bag
Many-body dynamics software is included, the orbit analysis platform includes finite element analysis software.
3. dynamics collaborative simulation analysis system according to claim 1, it is characterised in that the auto model includes car
Body, bogie and wheel pair.
4. dynamics collaborative simulation analysis system according to claim 1, it is characterised in that the model trajectory includes steel
Rail model, fastener model, Sleeper model, railway roadbed model, stopping means and infrastructure model.
5. dynamics collaborative simulation analysis system according to claim 1, it is characterised in that the infrastructure model bag
Include bridge model, roadbed model, tunnel model and transition segment model.
6. dynamics collaborative simulation analysis system according to claim 1, it is characterised in that the railway roadbed model includes
Tiny fragments of stone, coal, etc. model trajectory or non-fragment orbit model.
7. dynamics collaborative simulation analysis system according to claim 1, it is characterised in that the auto model information and
Model trajectory information includes geometric parameter, physical parameter, free degree information, the nodal information of auto model and model trajectory respectively
And unit information.
8. dynamics collaborative simulation analysis system according to claim 1, it is characterised in that the system, which carries out a step, to be included
Post-processing module,
The post-processing module is used to draw dynamic response chart according to the dynamic response data and generates report file.
9. a kind of dynamics collaborative simulation analysis method for track, it is characterised in that methods described includes：
S1：Auto model is set up by vehicle analysis platform, auto model information is generated；
S2：Model trajectory is set up by orbit analysis platform, model trajectory information is generated；
S3：Train-track system model is generated according to the auto model information and the model trajectory information by Cooperative Analysis platform
Information, the equation of motion is built to the train-track system model information, and solution obtains dynamic response data.
10. dynamics collaborative simulation analysis method according to claim 9, it is characterised in that methods described is further wrapped
Include S4：Dynamic response chart is drawn according to the dynamic response data and report file is generated.
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| CN111079322A (en) * | 2018-10-19 | 2020-04-28 | 株洲中车时代电气股份有限公司 | Train system dynamics modeling method and simulation method thereof |
| CN111353200A (en) * | 2020-03-03 | 2020-06-30 | 西南交通大学 | Locomotive motor bearing dynamics simulation analysis platform, device and method |
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Application publication date: 20170825 |