CN108647446A - A kind of method and system of passenger-cargo co double-block type ballastless track hurt analysis - Google Patents
A kind of method and system of passenger-cargo co double-block type ballastless track hurt analysis Download PDFInfo
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Abstract
The present invention discloses a kind of method and system of passenger-cargo co double-block type ballastless track hurt analysis, and the hurt for non-fragment orbit is analyzed and researched.The method includes the following steps：Specify passenger-cargo co double-block type ballastless track agent structure feature, material forms；Each composition material Plastic Damage constitutive relation of non-fragment orbit is obtained based on specification, document and experiment；Calculate the Plastic Damage parameter established needed for coupling model；The accuracy of the reversed certificate parameter of test block simulation model is established in conjunction with finite element software；Assign parameter to coupling model；Subsequent simulation is carried out based on coupling model to calculate and hurt analysis.This method and system fully consider the characteristics of passenger-cargo co circuit, in conjunction with FInite Element, concrete Plastic Damage constitutive theoryr is applied in railway ballastless track nonlinear analysis by success, the blank for having filled up passenger-cargo co double-block type ballastless track hurt analysis theories model has many advantages, such as that general, easy realization, accuracy is high, hurt analysis indexes are intuitive and easy to understand.
Description
Technical field
The present invention relates to passenger-cargo co non-fragment orbit fields, hinder more particularly to a kind of passenger-cargo co double-block type ballastless track
Damage the method and system of analysis.
Background technology
Railway plays a leading role always in China's communications and transportation, carries national nearly 70% volume of goods transported and 60% visitor
Freight volume, and it is chronically at excess load travel position.In order to alleviate railway transportation pressure, China actively carries out big face to existing line
While product transformation speed-raising, and largely build Line for Passenger Transportation.It is transported after the completion of the existing line Speed Increased Reformed of part and on objective special line road
The initial stage of battalion will all be transported using the pattern of passenger-cargo co.China's passenger-cargo co circuit is tried in addition to Sui-Yu Railway non-fragment orbit integrates
It tests other than section, main track generally uses Ballast track, and non-fragment orbit is used in conditional tunnel and bridge location.
Passenger-cargo co transport non-fragment orbit mainly in a manner of elastic bearing under double-block type, long sleeper buried-type and rail based on
Ballastless track structure pattern.Since the axis of car and lorry weight, running speed and kinetic characteristics are all different, railway roadbed in tunnel
Plate is formed with following inverted arch or basis and is rigidly connected, and causes freight locomotive vehicle more complicated to non-fragment orbit disturbing influence, into
And the damage and failure of non-fragment orbit sleeper and road bed board is also exacerbated, the ride comfort and development law of non-fragment orbit are influenced, to visitor
The defeated safety of shipping causes significant impact.
It is mostly based on linear elastic analysis model for non-fragment orbit damage and failure research at present, it is several by predetermined trajectory structure
What defect or using the means such as non-linear dead spring, analog orbit Structural defect mechanism of production and its to stock rail systematicness
The influence of energy.Existing research, which also has, carries out non-fragment orbit damage distress mechanism based on extended finite element method, cohesive zone model etc.
Research, but there is certain deficiencies.If extended finite element method is to be based on fracture mechanics, main crackle of studying generates and develops
A kind of simulation means, cannot reflect microscopic damage process before macroscopic cracking generates, and generally require default initial crack, no
It can reflect the randomness that disease generates；Cohesive zone model is then damaged and is destroyed mainly for interlayer and studied, and specific aim is stronger.
It is increasingly complex in view of passenger-cargo co double-block type ballastless track load action form and damage feature, so there is an urgent need to establish one kind
Suitable for the nonlinear analysis models that can be considered no tiny fragments of stone, coal, etc. rail random damage comprehensively and destroy of passenger-cargo co, with meet passenger-cargo co without
Tiny fragments of stone, coal, etc. track defect analyzes demand.
This patent proposes a kind of method and system suitable for the analysis of passenger-cargo co double-block type ballastless track hurt, the party
Method and system have fully considered the elastoplastic Damage sheet of the characteristics of passenger-cargo co circuit and each composition material of double-block type ballastless track
Structure relationship can accurately reflect the non-linear and random damage characteristic of each material of non-fragment orbit, can effectively study no tiny fragments of stone, coal, etc. rail comprehensively
Road road bed board, supporting course, bridge and tunnel segment structure random damage, accumulation and development law can be passenger-cargo co without the tiny fragments of stone, coal, etc.
Track structure service state repaiies technical research offer theory support with foster.This method and system can be not only used for static(al) and cause damage point
Analysis, it can also be used to power causes breakdown diagnosis, have it is general, easy realize, that accuracy is high, hurt analysis indexes are intuitive and easy to understand etc. is excellent
Point.
Invention content
It is an object of the present invention to provide a kind of method of passenger-cargo co double-block type ballastless track hurt analysis, this hairs
Another bright is designed to provide a kind of system of passenger-cargo co double-block type ballastless track hurt analysis, to solve the prior art
In heterogeneous linear analysis model can not consider the problems of comprehensively non-fragment orbit random damage destroy.
In order to achieve the above objectives, the present invention uses following technical proposals：
One aspect of the present invention discloses a kind of method of passenger-cargo co double-block type ballastless track hurt analysis, including
The agent structure and material for determining passenger-cargo co track obtain Plastic Damage constitutive relation according to specification and experiment；
Plastic Damage parameter is calculated by the Plastic Damage constitutive relation；
Establish double-block type ballastless track Space Coupling model；
The Plastic Damage parameter is substituted into the double-block type ballastless track Space Coupling model and obtains passenger-cargo co double block
Formula non-fragment orbit Space Coupling model；
Breakdown diagnosis and calculating are carried out using the obtained passenger-cargo co double-block type ballastless track Space Coupling model.
Preferably, the double-block type ballastless track Space Coupling model includes that the first Space Coupling model and/or second are empty
Between coupling model,
The analysis of static(al) hurt, which is carried out, by the partial model to double-block type ballastless track determines that passenger-cargo co parameters of loading obtains
Obtain the first Space Coupling model；By the partial model to double-block type ballastless track car is established into the analysis of action edge hurt
The second space coupling model is obtained with lorry whole vehicle model.
Preferably, the partial model be based on the agent structure and the material forms establish about rail, rail
Pillow, union piece, railway roadbed and the model of track switch.
Preferably, the agent structure includes two kinds of types of double-block type ballastless track and bridge double-block ballastless track in tunnel
Formula, the material include double-block ballastless track bed board, supporting course, tunnel and bridge composition material.
Preferably, the Plastic Damage parameter include tension stress-inelastic strain, compression chord-inelastic strain, by
Draw the corresponding data of damage factor-inelastic strain and compression damage factor-inelastic strain row.
Preferably, hurt analysis includes tension breakdown diagnosis, compression breakdown diagnosis, global stiffness breakdown diagnosis and modeling
Property strain analysis.
Preferably, the parameter for substituting into double-block type ballastless track Space Coupling model further includes density, elasticity modulus and Poisson
Than.
Preferably, described Plastic Damage parameter is calculated by the Plastic Damage constitutive relation to specifically include：It establishes
Test block simulation model tests the Plastic Damage parameter,
If the Plastic Damage parameter is correct, visitor is obtained for substituting into the double-block type ballastless track Space Coupling model
The conllinear double-block type ballastless track Space Coupling model of goods；If the Plastic Damage parameter error, redefines parameter and is tested
Card；
The wherein described test block simulation model geometric dimension is consistent with strength test related specifications regulation.
Another aspect of the present invention also discloses a kind of system of passenger-cargo co double-block type ballastless track hurt analysis, including
Plastic Damage parameter determination module, the agent structure for determining passenger-cargo co track and material, according to specification and
Experiment obtains Plastic Damage constitutive relation, and Plastic Damage parameter is calculated；
Modeling module is substituted into for establishing double-block type ballastless track Space Coupling model, and by the Plastic Damage parameter
The double-block type ballastless track Space Coupling model obtains passenger-cargo co double-block type ballastless track Space Coupling model；
Breakdown diagnosis module is damaged using the obtained passenger-cargo co double-block type ballastless track Space Coupling model
Analysis and calculating.
Preferably, the Plastic Damage parameter determination module is further used for establishing test block simulation model, to the plasticity
Impairment parameter is verified,
If the Plastic Damage parameter is correct, visitor is obtained for substituting into the double-block type ballastless track Space Coupling model
The conllinear double-block type ballastless track Space Coupling model of goods；If the Plastic Damage parameter error, redefines parameter and is tested
Card；
The wherein described test block simulation model geometric dimension is consistent with strength test related specifications regulation.
Preferably, the double-block type ballastless track Space Coupling model established in the modeling module includes the first space
Coupling model and second space coupling model,
The first Space Coupling model is to carry out static(al) hurt analysis by the partial model to double-block type ballastless track
Determine that passenger-cargo co parameters of loading is obtained；The second space coupling model is to pass through the component mould to double-block type ballastless track
Type establishes car into the analysis of action edge hurt and lorry whole vehicle model is obtained.
Preferably, the partial model be based on the agent structure and the material forms establish about rail, rail
Pillow, union piece, railway roadbed and the model of track switch.
Preferably, the agent structure includes two kinds of types of double-block type ballastless track and bridge double-block ballastless track in tunnel
Formula, the material include double-block ballastless track bed board, supporting course, tunnel, bridge composition material.
Preferably, the Plastic Damage parameter include tension stress-inelastic strain, compression chord-inelastic strain, by
Draw four groups of corresponding datas row of damage factor-inelastic strain, compression damage factor-inelastic strain.
Preferably, the hurt analysis includes tension breakdown diagnosis, compression breakdown diagnosis, global stiffness breakdown diagnosis and plasticity
Strain analysis.
Preferably, the parameter for double-block type ballastless track Space Coupling model being substituted into the modeling module further includes close
Degree, elasticity modulus and Poisson's ratio.
Beneficial effects of the present invention are as follows：
The present invention provides a kind of method and system of passenger-cargo co double-block type ballastless track hurt analysis, not only can be with
It causes injury for static(al) and damages analysis, it can also be used to which stock rail coupling power, which is caused injury, damages analysis.The method and the system can be complete
Face considers the nonlinear effect and random damage accumulation characteristics of each composition material of double-block type ballastless track, breaches previous finite element
Linear elastic model cannot consider the limitation of accumulating plastic deformation and material random damage in analysis method, and it is double to have filled up passenger-cargo co
The blank of block type ballastless track hurt analysis theories model, while the model can also be used for other pattern non-fragment orbits, have logical
With, easily realize, accuracy is high, hurt analysis indexes are intuitive and easy to understand the advantages that.
Description of the drawings
Specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the method flow diagram of passenger-cargo co double-block type ballastless track hurt analysis；
Fig. 2 shows the curve graphs of material constitutive relation in the present embodiment；
Fig. 3 shows the curve graph of material plasticity impairment parameter in the present embodiment；
Fig. 4 shows the double-block type ballastless track finite element model figure in the present embodiment；
Fig. 5 shows the car finite element model in the present embodiment；
Fig. 6 shows the lorry finite element model in the present embodiment；
Fig. 7 shows vehicle track coupling dynamics finite element model figure in the tunnel in the present embodiment；
Fig. 8 shows the unique load collection of illustrative plates of the family in the present embodiment；
Fig. 9 shows that the double-block ballastless track bed board hurt in the present embodiment analyzes cloud atlas；
Figure 10 shows a kind of system schematic of passenger-cargo co double-block type ballastless track hurt analysis.
Specific implementation mode
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 component is indicated with identical reference numeral in attached 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.
The present invention is based on concrete Plastic Damage constitutive theoryrs, in conjunction with FInite Element, foundation can consider comprehensively double-block type without
The nonlinear analysis models of each composition material elasto-plastic damage constitutive relations of tiny fragments of stone, coal, etc. track, for studying passenger-cargo co non-fragment orbit
Unit status development law.
As shown in Figure 1, a kind of method of passenger-cargo co double-block type ballastless track hurt analysis of the offer of the present invention.According to
Rail system on-site actual situations, specify passenger-cargo co double-block type ballastless track agent structure and material forms, including road bed board,
Supporting layer composition material etc., and survey track structure geometric dimension and some materials Typical physical attribute.
With reference to existing specification, document and the experiment of bond material tension resistance, the bullet modeling of each composition material of non-fragment orbit is derived
Property Damage constitutive relation, be illustrated in figure 2 the curve graph for the constitutive relation that material in one embodiment is road bed board.
Based on gained constitutive relation, the Plastic Damage parameter established needed for non-fragment orbit solid finite element model, packet are calculated
Include material tension stress-inelastic strain, compression chord-inelastic strain, tension damage factor-inelastic strain and by crushing
Hinder the corresponding datas such as the factor-inelastic strain row, the corresponding of four groups of corresponding datas row for being illustrated in figure 3 Plastic Damage parameter is closed
System.
Test block simulation model compression test is carried out to gained Plastic Damage parameter, to verify the accuracy of the parameter, together
When examination adjust damage model in other parameters.If the Plastic Damage parameter is correct, for substituting into the double block type ballastless rail
Road Space Coupling model obtains passenger-cargo co double-block type ballastless track Space Coupling model；If the Plastic Damage parameter error,
Parameter is then redefined to be verified；The wherein described test block simulation model geometric dimension provides one with strength test related specifications
It causes.
According to field condition, the agent structure pattern for determining non-fragment orbit, specifies ballastless track structure geometric dimension and material
The Typical physical attribute of material establishes double-block type ballastless track spatial entities fining analysis mould using ABAQUS finite element softwares
Type establishes its each partial model to double-block type ballastless track, the partial model include about rail, sleeper, union piece,
The finite element model that each component such as railway roadbed and track switch is established.It is illustrated in figure 4 double-block type ballastless track finite element model figure.
As shown in Figure 5 and Figure 6, since the axis of car and lorry weight, running speed and kinetic characteristics are all different, to fill
Point it is contemplated that the characteristics of passenger-cargo co, can real ruler establish passenger train and lorry whole vehicle model, for establishing car/lorry vehicle
- double-block type ballastless track Space Coupling kinetic model, that is, it is based on establishing each partial model of double-block type ballastless track, and carry out
Power hurt is analyzed, it is established that car whole vehicle model and lorry whole vehicle model；As shown in fig. 7, for fully it is contemplated that passenger-cargo co
The characteristics of, the traffic spectra that car or lorry can also be used is applied on static analysis model, and traffic spectra can be that displacement spectra also may be used
To be that power is composed, load can be applied with single, can also replace application or CYCLIC LOADING, i.e., each based on double-block type ballastless track is established
Partial model, and static(al) hurt analysis is carried out, determine passenger-cargo co parameters of loading.When obtaining the parameters of loading, according to existing
Field traffic-operating period specifies the operation characteristic of car and lorry and respective vehicle model, and refers to pertinent literature, to be established
Vehicle parameter or car and lorry needed for car and lorry vehicle finite element model join load caused by substructure
Number.The vehicle parameter includes the geometric parameter and mechanics parameter of vehicle, and the parameters of loading can be power spectrum, displacement spectra
Deng.
The first Space Coupling model, the car based on above-mentioned foundation are established based on the passenger-cargo co parameters of loading of above-mentioned determination
Whole vehicle model/lorry whole vehicle model establishes second space coupling model, by the first Space Coupling model and second sky
Between coupling model formation base double-block type ballastless track Space Coupling model.
Satisfactory Plastic Damage parameter after verification is substituted into the double-block type ballastless track Space Coupling model, together
When substitute into double-block type ballastless track Space Coupling model parameter further include density, elasticity modulus and Poisson's ratio and coefficient of thermal expansion
Deng obtaining the Space Coupling model for being suitable for the analysis of passenger-cargo co double-block type ballastless track hurt, including the first passenger-cargo co is double
The space of the Space Coupling model and the analysis of the second passenger-cargo co double-block type ballastless track hurt of the analysis of block type ballastless track hurt
Coupling model.
The Space Coupling model of the first passenger-cargo co double-block type ballastless track, is obtained, energy based on static analysis
It is enough that injury is quickly analyzed；The Space Coupling model of the second passenger-cargo co double-block type ballastless track, based on power point
Analysis is obtained, and can have higher accuracy and accuracy rate to injury analysis.Being suitable for based on said two devices composition is passenger-cargo
The Space Coupling model of conllinear double-block type ballastless track hurt analysis, can further increase efficiency and accuracy, to no tiny fragments of stone, coal, etc. rail
Road hurt analysis has far-reaching significance.As shown in figure 8, for the sky analyzed suitable for passenger-cargo co double-block type ballastless track hurt
Between coupling model, which can fully consider the nonlinear effect and random damage accumulation characteristics of each composition material of non-fragment orbit,
It can fully consider that coupling model respectively forms component function and effect simultaneously.
Follow-up non-fragment orbit simulation calculation is carried out using above-mentioned obtained model and hurt is analyzed, based on above-mentioned foundation
Suitable for the Space Coupling model of passenger-cargo co double-block type ballastless track hurt analysis, finite element stimulation, Jin Erjin are carried out
The follow-up non-fragment orbit hurt theory analysis research of row.
As shown in figure 9, for damage cloud atlas of the road bed board under the vertical load action of train, including global stiffness damage cloud atlas,
Tension damages cloud atlas and the damage cloud atlas that is pressurized.By cloud atlas it is found that when the vertical load of train is larger, road bed board upper surface sleeper week
There is damage in border region, and tension damage is much larger than the damage that is pressurized.
As it can be seen that this model is analyzing non-fragment orbit damage occurrence and development and when development law, more with on-site actual situations
It is consistent, can be effectively used for the analysis of passenger-cargo co double-block type ballastless track hurt.
Further, the above method, a kind of passenger-cargo co double-block type ballastless track hurt analysis provided by the invention are based on
Space Coupling model, including the first passenger-cargo co double-block type ballastless track hurt analysis space coupling model and second passenger-cargo total
Line double-block type ballastless track hurt analysis space coupling model, the first passenger-cargo co double-block type ballastless track hurt analysis are empty
Between coupling model for carry out tension breakdown diagnosis, compression breakdown diagnosis, global stiffness breakdown diagnosis, plastic strain analysis；It is described
Second passenger-cargo co double-block type ballastless track hurt analysis space coupling model is for carrying out tension breakdown diagnosis, being pressurized to damage and divide
Analysis, global stiffness breakdown diagnosis, plastic strain analysis.Therefore the two can be carried out at the same time hurt analysis, while improving efficiency,
Accuracy rate can also be further increased.Also may be used in the method for the passenger-cargo co double-block type ballastless track hurt analysis of the present invention
Only to establish the first passenger-cargo co double-block type ballastless track hurt analysis space coupling model and second passenger-cargo co
One in double-block type ballastless track hurt analysis space coupling model, and then complete to analyze track defect and calculate.
Based on the above method, as shown in Figure 10, the present invention provides a kind of passenger-cargo co double-block type ballastless track hurt analysis
System, include that Plastic Damage parameter determination module 10 is used to determine the agent structure and material of passenger-cargo co track, according to rule
Model and experiment obtain Plastic Damage constitutive relation, and Plastic Damage parameter is calculated；Modeling module 11 is for establishing double-block type
Non-fragment orbit Space Coupling model, and the Plastic Damage parameter is substituted into the double-block type ballastless track Space Coupling model and is obtained
To passenger-cargo co double-block type ballastless track Space Coupling model；Breakdown diagnosis module 12 utilizes the obtained passenger-cargo co double block
Formula non-fragment orbit Space Coupling model carries out breakdown diagnosis and calculating.
The wherein described Plastic Damage parameter determination module, is further used for establishing test block simulation model, is damaged to the plasticity
Hinder parameter to be verified, if the Plastic Damage parameter is correct, for substituting into the double-block type ballastless track Space Coupling mould
Type obtains passenger-cargo co double-block type ballastless track Space Coupling model；If the Plastic Damage parameter error, redefines ginseng
Number is verified；The test block simulation model geometric dimension is consistent with strength test related specifications regulation.The Plastic Damage ginseng
Number include tension stress-inelastic strain, compression chord-inelastic strain, tension damage factor-inelastic strain, by crushing
Hinder four groups of corresponding datas row of the factor-inelastic strain.
In the above-described embodiments, the double-block type ballastless track Space Coupling model that the modeling module is established includes the
One Space Coupling model and second space coupling model, the first Space Coupling model are by double-block type ballastless track
Partial model carries out the analysis of static(al) hurt and determines that passenger-cargo co parameters of loading is obtained；The second space coupling model is to pass through
Car is established into the analysis of action edge hurt to the partial model of double-block type ballastless track and lorry whole vehicle model is obtained.
Wherein, the partial model be based on the agent structure and the material forms establish about rail, sleeper,
Union piece, railway roadbed and the model of track switch, the agent structure include in tunnel on double-block type ballastless track and bridge double-block type without
Two kinds of patterns of tiny fragments of stone, coal, etc. track, the material include double-block ballastless track bed board, supporting course, tunnel, bridge composition material；It substitutes into
The parameter of double-block type ballastless track Space Coupling model further includes density, elasticity modulus and Poisson's ratio.
In breakdown diagnosis module, hurt analysis includes tension breakdown diagnosis, compression breakdown diagnosis, global stiffness damage
Wound analysis, plastic strain analysis.
It further, can be only in the method or system of the passenger-cargo co double-block type ballastless track hurt analysis in the present invention
Establish the first passenger-cargo co double-block type ballastless track hurt analysis space coupling model and the second passenger-cargo co double block
One in formula non-fragment orbit hurt analysis space coupling model, and then complete to analyze track defect and calculate.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, 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 solution is extended out still in protection scope of the present invention.
Claims (10)
1. a kind of method of passenger-cargo co double-block type ballastless track hurt analysis, which is characterized in that including
The agent structure and material forms for determining passenger-cargo co track obtain Plastic Damage constitutive relation according to specification and experiment；
Plastic Damage parameter is calculated by the Plastic Damage constitutive relation；
Establish double-block type ballastless track Space Coupling model；
By the Plastic Damage parameter substitute into the double-block type ballastless track Space Coupling model obtain passenger-cargo co double-block type without
Tiny fragments of stone, coal, etc. orbit space coupling model；
Breakdown diagnosis and calculating are carried out using the obtained passenger-cargo co double-block type ballastless track Space Coupling model.
2. a kind of method of passenger-cargo co double-block type ballastless track hurt analysis according to claim 1, which is characterized in that
The double-block type ballastless track Space Coupling model includes the first Space Coupling model and/or second space coupling model,
The analysis of static(al) hurt, which is carried out, by the partial model to double-block type ballastless track determines that passenger-cargo co parameters of loading obtains institute
State the first Space Coupling model；By the partial model to double-block type ballastless track car and goods are established into the analysis of action edge hurt
Vehicle whole vehicle model obtains the second space coupling model.
3. a kind of method of passenger-cargo co double-block type ballastless track hurt analysis according to claim 2, which is characterized in that
The partial model be based on the agent structure and the material forms establish about rail, sleeper, union piece, railway roadbed
And the model of track switch.
4. a kind of method of passenger-cargo co double-block type ballastless track hurt analysis according to claim 1, which is characterized in that
The agent structure include in tunnel two kinds of patterns of double-block type ballastless track and bridge double-block ballastless track, the material include
Double-block ballastless track bed board, supporting course, tunnel and bridge composition material.
5. a kind of method of passenger-cargo co double-block type ballastless track hurt analysis according to claim 1, which is characterized in that
The Plastic Damage parameter includes tension stress-inelastic strain, compression chord-inelastic strain, tension damage factor-non-ballistic
Property strain and compression damage factor-inelastic strain corresponding data row.
6. a kind of method of passenger-cargo co double-block type ballastless track hurt analysis according to claim 1, which is characterized in that
The hurt analysis includes tension breakdown diagnosis, compression breakdown diagnosis, global stiffness breakdown diagnosis and plastic strain analysis.
7. a kind of method of passenger-cargo co double-block type ballastless track hurt analysis according to claim 1, which is characterized in that
The parameter for substituting into double-block type ballastless track Space Coupling model further includes density, elasticity modulus and Poisson's ratio.
8. a kind of side of passenger-cargo co double-block type ballastless track hurt analysis according to any one of claims 1-7
Method, which is characterized in that described Plastic Damage parameter is calculated by the Plastic Damage constitutive relation to specifically include：
Test block simulation model is established, the Plastic Damage parameter is verified,
If the Plastic Damage parameter is correct, substitutes into the double-block type ballastless track Space Coupling model and obtain passenger-cargo co pair
Block type ballastless track Space Coupling model；
If the Plastic Damage parameter error, redefines parameter and is verified；
The wherein described test block simulation model geometric dimension is consistent with strength test related specifications regulation.
9. a kind of system of passenger-cargo co double-block type ballastless track hurt analysis, which is characterized in that including
Plastic Damage parameter determination module, the agent structure for determining passenger-cargo co track and material, according to specification and experiment
Plastic Damage constitutive relation is obtained, and Plastic Damage parameter is calculated；
Modeling module, for establishing double-block type ballastless track Space Coupling model, and will be described in Plastic Damage parameter substitution
Double-block type ballastless track Space Coupling model obtains passenger-cargo co double-block type ballastless track Space Coupling model；
Breakdown diagnosis module carries out breakdown diagnosis using the obtained passenger-cargo co double-block type ballastless track Space Coupling model
And calculating.
10. a kind of system of passenger-cargo co double-block type ballastless track hurt analysis according to claim 9, feature exist
In the Plastic Damage parameter determination module is further used for establishing test block simulation model, is carried out to the Plastic Damage parameter
Verification,
If the Plastic Damage parameter is correct, substitutes into the double-block type ballastless track Space Coupling model and obtain passenger-cargo co pair
Block type ballastless track Space Coupling model；If the Plastic Damage parameter error, redefines parameter and is verified；
The wherein described test block simulation model geometric dimension is consistent with strength test related specifications regulation.
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