CN102880759A - High-speed train large system coupling dynamic simulation platform - Google Patents
High-speed train large system coupling dynamic simulation platform Download PDFInfo
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Abstract
The invention discloses a high-speed train large system coupling dynamic simulation platform which adopts a distributed simulation system based on C/S (client/server) mode and comprises a foreground human-computer interaction interface portion and a background distributed based core calculating portion. The background based core calculating module comprises a task scheduling module, a coupling control module, an executor agent module, a vehicular dynamic calculation module, a line dynamic calculation module, a bow net dynamic calculation module, a tractive power supply calculation module and an air dynamic calculation module, and the foreground human-computer interaction interface portion comprises a main control module, a pre-processing module, a calculating resource management module, a calculation monitoring module, a post-processing module and a system management module. The high-speed train large system coupling dynamic simulation platform is supportive of multiple working conditions for simultaneous high speed train large system coupling dynamic simulation, capable of monitoring calculation process in real time, good in expansibility and supportive of heterogeneous exclusive-operation system, and provides a good platform for coupling simulation and operation simulation of a high speed train and a line, a contact network and a power supply system and coupling relation study and performance evaluation of the high speed train and other subsystems.
Description
Technical field
The present invention relates to the Simulation Control technology, especially the large system, coupled emulation platform of bullet train technical field.
Background technology
Along with being refreshed again and again and the signing of the high ferro technology export memorandum such as Russia, the U.S. etc. of the burning hot construction of China's high ferro network, overall trip speed record, the security of operation guarantee of bullet train under the new situation is instant rigid demand.This has researched and proposed stern challenge to the high-speed railway traffic safety, and unprecedented opportunities also are provided.
The operation of bullet train is subject to the impact of the fixation means conditions such as circuit and contact net, and the control of traction power supply and train operation control system also is subject to the restriction of air turbulence, resistance and noise etc. simultaneously.Therefore, consist of between each subsystem of EMU and high-speed railway connect each other, interdependence, the mutual relation of restriction, as and circuit between wheel rail relation, and pantograph contact line relation between the contact net, and the stream between the air concerns admittedly, and the electromechanics relation between power supply and the traction drive etc.Under the high-speed cruising condition, the interaction aggravation between train and line track, contact net, the air-flow etc. is accelerated such as abrasion, the wearing and tearing of wheel track and bow net, even is caused losing efficacy, and has a strong impact on operation; High velocity air also no longer only is running resistance, affects simultaneously the runnability of motor train unit, even causes the train operational safety problem; High-power and the high density driving that high speed is required, electric power emission and absorption to electric power system proposes higher requirement, in case the relation of car and electric power system does not match, just may cause the fluctuation of voltage, even electric power system is collapsed because of superpressure, low pressure or impact.Meanwhile, because the raising of speed, the particularly aggravation of vibration, can bring a series of extreme problem in science, overall nonlinear stability problem such as bullet train, the adhesion Limits properties that adhesion factor between wheel track sharply descends and causes, the velocity of wave approximation problem after considering the restriction of contact net tension force, structural fatigue extra long life problem.For addressing the above problem, must be coupled together each subsystem of high-speed railway that is associated with bullet train riding quality and security and carry out the research of bullet train system dynamics.
The dynamics research that bullet train is relevant at present mainly concentrates on subsystem level, such as train dynamics, circuit dynamics, bow net dynamics etc., these subsystem researchs and computing platform are relatively independent generally, architectonical not, although part Study is progressively extended to bullet train big coupling system dynamics, such as car-line-bridge dynamics research, but these can't satisfy the requirement of the large system, coupled Dynamics Simulation Analysis of current bullet train fully.And up to now, there is no the ripe large system, coupled Dynamics Simulation Analysis of bullet train that can be both at home and abroad the software systems of calculating support are provided.
Summary of the invention
In view of the deficiencies in the prior art, the objective of the invention is research provides a kind of bullet train large system, coupled dynamics simulation platform, makes it to overcome the above shortcoming of prior art.
The objective of the invention is to realize by following means.
The large system, coupled dynamics simulation platform of bullet train adopts the distributed emulation system based on C/S model, comprises foreground human-computer interaction interface part and backstage based on distributed core calculations part, wherein,
Described backstage comprises based on distributed core calculations module:
Task scheduling modules, be used for the scheduling that the user submits emulation operating mode task to, according to resource situation of the calculation requirement of task, priority, computational grid etc., adopt suitable scheduling strategy, calculation task is dispatched on the suitable computational resource, if computational resource is not enough, then calculation task is according to priority waited in line, support the multi-state Automatic dispatching, supporting has the user of administration authority that scheduling strategy is expanded;
The coupling control module, be used for the coupling calculating to the emulation operating mode task-cycle integration step level of user's submission, the simulation step length of utilizing coupling control algorithm to coordinate each subsystem of subsystem such as train, circuit, bow net, traction power supply and transmission, aerodynamics make its keep space-time consistent, control the calculation process of each subsystem and carry out reception, processing and the distribution of data, realize that the coupling between each subsystem is calculated;
Execution machine proxy module, be used for obtaining the type of the performance of each computational resource CPU and utilization rate, memory size and operating position, operating system, by with the managing computing resources module communication, realize the management of network topology and the inquiry of computational resource, be used for simultaneously starting each subsystem computing module, by communicating by letter with the coupling control module, inform the running status of each subsystem computing module; Provide the basis for fault diagnosis and recovery simultaneously;
The dynamics of vehicle computing module is used for dynamics of vehicle single step emulation, exports the simulation result in this step, and communicates by letter with the coupling control module and carry out the coupling data transmission, implements to calculate with the coupling of other subsystems under the coordination of coupling control module;
Circuit dynamics calculation module is used for circuit dynamics single step emulation, exports the simulation result in this step, and communicates by letter with the coupling control module and carry out the coupling data transmission, implements to calculate with the coupling of other subsystems under the coordination of coupling control module;
Bow net dynamics calculation module is used for bow net dynamics single step emulation, exports the simulation result in this step, and communicates by letter with the coupling control module and carry out the coupling data transmission, implements to calculate with the coupling of other subsystems under the coordination of coupling control module;
The traction power supply computing module is used for traction power supply subsystem single step emulation, exports the simulation result in this step, and communicates by letter with the coupling control module and carry out the coupling data transmission, implements to calculate with the coupling of other subsystems under the coordination of coupling control module;
The aerodynamics computing module is used for train aerodynamics single step emulation, exports the simulation result in this step, and communicates by letter with the coupling control module and carry out the coupling data transmission, implements to calculate with the coupling of other subsystems under the coordination of coupling control module;
Described foreground human-computer interaction interface partly comprises:
Main control module is used for the foundation of various simulation flows and the management of emulated data, specifically comprises: be responsible for Data dissemination and the management of whole system; Be responsible for the validity of data inspection; Be responsible for the management of professional computation model storehouse, result of calculation class library; Be responsible for the tissue of Coupling Simulation Model; Be responsible for the configuration of emulation operating mode and the management in design condition storehouse; Responsible system needs the initialization of data, the initialization of each model bank, the definition of each data structure and initialization;
Pre-processing module, be used for setting up the pre-treatment model of each coupling Simulation subsystem, be realistic model with the actual physics Model Mapping of each subsystem, thereby set up the required pre-treatment input model of each subsystem emulation, comprise high speed train dynamics pre-treatment submodule, circuit dynamics pre-treatment submodule, bow net dynamics pre-treatment submodule, train aerodynamics pre-treatment submodule and traction power supply and transmission emulation pre-treatment submodule;
The managing computing resources module, be used for obtaining the information that execution machine proxy module returns, the interior available computational resource of monitor network and the operating position of each computational resource, implement the unified management of isomery exclusive-OR function system resources in computation, for the scheduling of calculation task provides foundation, provide simultaneously network topological information and hardware fault auxiliary diagnosis function;
Calculate monitoring module, be used for computation process is carried out the Real time visible monitoring, abnormal conditions are pointed out or alarm, make the computation process transparence;
Post-processing module is used for simulation result is carried out Data Management Analysis, obtains performance time-history curves or development law, comprises Versatile two-dimension Data Post submodule, three-dimensional operation ASM and professional aftertreatment submodule;
System management module is used for whole platform is carried out operation maintenance and management, such as user management, Role Management, rights management;
The main control module of described foreground human-computer interaction interface part, it is the interface that enters of user's usage platform, integrated pre-processing module, post-processing module, managing computing resources module, calculate the entrance of monitoring module and system management maintenance module, comprise following menu item:
The project menu item, be used for establishment of item and the relevant operation of management, comprise new project, project library management and withdraw from Submenu Items, wherein the new project Submenu Items is used for a newly-built project, project library management Submenu Items is used for inquiry, modification, the deletion of project library, withdraws from Submenu Items and is used for quitting a program;
The computation model menu item, be used for the operation that computation model creates and management is relevant, comprise subsystem pre-treatment modeling, three Submenu Itemses of initial model library management and partial model library management, wherein subsystem pre-treatment modeling Submenu Items is the entrance of pre-processing module, be used for entering dynamics of vehicle, circuit dynamics, bow net dynamics, traction power supply, the emulation pre-treatment Modeling interface of aerodynamics subsystem, the initial model library management is used for newly-built, revise, deletion, the inquiry train, circuit, the realistic model of aerodynamics subsystem, the partial model library management is used for newly-built, revise, deletion, the inquiry train, circuit, bow net, the realistic model of traction power supply subsystem, the appropriate section of utilizing the model in the partial model storehouse can partly replace the model in the initial model storehouse, in initial model storehouse and partial model storehouse, the parts of train subsystem comprise: wheel tread, rigidity car body and framework, the flexible car body of each rank mode and framework, the parts of line subsystem comprise: structure under the circuit rail, steel rail parameter, rail tread and track irregularity, the parts of bow net subsystem comprise: pantograph, contact net, the parts of traction power supply subsystem comprise: power supply facilities;
The design condition menu item, be used for the configuration of design condition and the management in design condition storehouse, comprise newly-built/open operating mode, newly-built/as to open local operating mode, design condition library management Submenu Items, wherein newly-built/open the operating mode Submenu Items and be used for organizing the coupling Simulation design condition from model database chooser system simulation model, wherein newly-built/open local operating mode Submenu Items and be used for organizing the coupling Simulation design condition from the good subsystem realistic model of user's the machine file option and installment, the design condition library management is used for revising, deletion, inquiry has configured the various design conditions of finishing or having submitted to;
Menu item is calculated in coupling, being used for that the design condition that the user configures is submitted to the backstage carries out coupling Simulation and relevant information is calculated in coupling inquired about and control, comprise that starting coupling calculates, managing computing resources, three Submenu Itemses of computation process monitoring, wherein starting coupling calculates Submenu Items and is used for that the design condition that the user configures is submitted to the backstage and carries out coupling Simulation, the managing computing resources Submenu Items is the entrance of managing computing resources module, be used for checking and the Management Calculation resource, computation process monitoring Submenu Items is the entrance of computation process monitoring module, be used for all design conditions that supervisory user is submitted to, abnormal conditions are carried out alarm;
The result of calculation menu item, be used for the Treatment Analysis of each subsystem simulation result and the management of results repository, comprise subsystem aftertreatment and results repository management Submenu Items, wherein subsystem aftertreatment Submenu Items is the entrance of post-processing module, be used for dynamics of vehicle, circuit dynamics, bow net dynamics, traction power supply, the simulation result Treatment Analysis of aerodynamics subsystem, comprise the Versatile two-dimension Data Post, the professional post-processing functions such as three-dimensional operation simulation and flow field analysis, results repository management Submenu Items is used for checking of each subsystem simulation result, download and deletion etc.;
System maintenance and Administration menu item are the entrances of system management module, are used for the maintenance and management of platform;
The help menu item is used for the display system relevant information.
Newly-built in the main control module design condition menu item of described foreground human-computer interaction interface part/as to open the operating mode interface, comprise with knob down:
Selection button in auto model name text frame right side is used for from the initial model storehouse or vehicle/train simulation model is selected in the condition model storehouse;
Button is selected on circuit model name text frame right side, is used for from the initial model storehouse or condition model storehouse selection circuit emulation model;
Button is selected on bow net model name text box right side, is used for from the partial model storehouse or condition model storehouse selection pantograph and contact net realistic model;
Lead for model name text box right side and select button, be used for from the partial model storehouse or condition model storehouse selection simulation of power supply system model;
Button is selected on stream solid model type name text frame right side, is used for from the initial model storehouse or condition model storehouse selection train aerodynamics realistic model;
Emulation arranges button, is used for arranging simulation time, each subsystem simulation step length, output step-length, for vehicle subsystem, also train running speed can be set;
Preserve the operating mode button, be used for preserving user configured simulation calculation floor data, must after the validity check of emulation operating mode is passed through, can successfully preserve, otherwise can point out the check item that to pass through information;
The coupling computed push-buttom is used for the design condition that the submission user has just configured and can successfully preserve, and carries out the coupling on backstage and calculates;
Exit button is used for withdrawing from the design condition editing interface.
The present invention can support multi-state to carry out simultaneously the large system, coupled dynamics simulation of bullet train, and computation process is carried out Real Time Monitoring, and extensibility is good, supports isomery exclusive-OR function system.For the coupled relation of bullet train and circuit, contact net, electric power system coupling Simulation and operation simulation and bullet train and other subsystems is studied and Performance Evaluation provides good platform.
The large system, coupled dynamics simulation platform of bullet train of the present invention has:
1) supports the large system, coupled dynamics simulation of bullet train, can in the formed large system of bullet train-circuit-bow net-traction power supply-aerodynamics, consider simultaneously wheel track coupled relation, bow net coupled relation, the solid coupled relation of stream, mechanical-electric coupling relation, carry out large system, coupled dynamics simulation, also can carry out the emulation of part system, coupled;
2) be supported on the computational resource of isomery exclusive-OR function system and move, can the part computing module operate on the common PC under the windows operating system, the part computing module operates on the high performance parallel computer cluster under the linux operating system, carries out large system, coupled dynamics simulation;
3) support simultaneously coupling Simulation of multi-state, under the prerequisite of computational resource abundance, coupling Simulation when can support multi-state when computational resource is not enough, is ranked by the time sequencing of submitting to and priority and to be waited to calculate;
4) support computation process is carried out Real Time Monitoring, can to all submissions carry out the graphical monitoring of simulation process in the operating mode of calculating, the abnormal information in the simulation process is carried out alarm;
5) open architecture, good extensibility is when computational resource abundance and coupler load are larger, can be by the software setting, automatically distributing a computational resource is coupling mechanism, implements load balancing, vice versa, dispatching algorithm, coupling data Processing Algorithm etc. provide open interface simultaneously, can increase or delete, in addition, subsystem computing module interface has versatility, as long as meet interface specification, behind the software upgrading coupled relation, can include the coupling counting system in;
6) good human-computer interaction function, computation organization is convenient, can organize fast various levels of partial coupling model, the emulation input model of each subsystem can be selected from model bank, also can configure from this locality, or from the operating mode storehouse that has created, select, and department pattern is replaceable, the Effective Raise modeling efficiency, and computation process is visual controlled.
Adopt the present invention, can carry out bullet train and circuit, contact net, electric power system coupling Simulation and operation simulation, can carry out the coupled relation research of bullet train and other subsystems, can carry out the optimization analysis of bullet train and coupled system thereof, can carry out the design evaluation of bullet train and coupled system thereof, making a strategic decision for innovative design, optimization, Performance Evaluation and the operation maintenance of High Speed Train in China and related system provides platform to support.
Description of drawings
The large system, coupled dynamics simulation platform of Fig. 1 bullet train module composition diagram
The main control module composition diagram of Fig. 2 human-computer interaction interface part
Newly-built in Fig. 3 operating mode menu item/as to open the operating mode composition diagram
The large system, coupled dynamics simulation platform of Fig. 4 bullet train workflow
The large system, coupled dynamics simulation platform of Fig. 5 bullet train pre-processing module interface
The large system, coupled dynamics simulation platform of Fig. 6 bullet train computation process monitoring module
The large system, coupled dynamics simulation platform of Fig. 7 bullet train Versatile two-dimension Data Post module
The three-dimensional operation simulation of the large system, coupled dynamics simulation platform of Fig. 8 bullet train train post-processing module
Embodiment
Below, by reference to the accompanying drawings, content of the present invention is described in further detail.
Because each subsystem is different to computational resource requirement, running environment requirement etc., simultaneously in order to guarantee the whole simulation efficiency after multiple subsystem is coupled, bullet train system dynamics emulation platform of the present invention is deployed in the distributed computing environment that is connected by express network, and its framework mainly comprises subsystem simulation calculation execution machine, emulation user end computer, system emulation coupling mechanism, scheduler, database server, file server, simulation process supervisory control comuter, high performance parallel computation cluster and the relevant network equipment.
Wherein the emulation user side is the client computer of user's direct control platform, is used for the emulation pre-treatment, submits simulation calculation operating mode, emulation aftertreatment etc. to, adopts windows operating system, is comprised of graphics workstation or high performance ordinary PC.
Subsystem simulation calculation execution machine adopts windows operating system, can running train, the simulation algorithm model of circuit, bow net, traction power supply and drive subsystem, formed by a series of high performance ordinary PC, can dynamically increase at any time or deletion according to application demand.
It is main that the high-performance computer cluster adopts linux/unix operating system, and part of nodes can adopt windows operating system, calculates core many, and operation efficiency is high, preferentially is used for the calculating of aerodynamics subsystem.
System emulation coupling server (abbreviation coupling mechanism) is processing and the transmitting-receiving collecting and distributing centre of coupling data, all coupling datas all compile and are distributed to each subsystem through it to it, in the situation that multi-state operation, data throughout is larger, systematic comparison is busy, require the CPU processing power high, the network card data throughput performance is good, adopts windows operating system.In the situation that the multi-state operation can be disposed a plurality of coupling mechanisms, simultaneously can be according to the needs of using, dynamic additions and deletions coupling mechanism.
Calculation task dispatch server (abbreviation scheduler) is used for calculation task is distributed to each idle computational resource, require the good stability of computational resource, in the situation that the enough redundant deployment that should consider scheduler of computational resource adopt windows, linux or unix operating system all can.
The simulation process watch-dog is mainly used in the monitoring of simulation process data, its major function is the process data that obtains simulation calculation from database, and show by computation process supervisory system independently, so that the problem that occurs in time finding to calculate, improve the efficient of using.The simulation process watch-dog carries out autonomous configuration by the user, can monitor the much information of an operating mode, also can monitor the much information of a plurality of operating modes.This equipment characteristic is that preferably data-handling capacity need to be arranged, and simultaneously also needs certain graphics capability, adopt one or more high performance PC or graphics workstation all can, adopt windows operating system.
Database server is deposited various model datas, operating mode arranges data, calculation result data etc.The memory database server can be preferentially adopted in the calculating large for memory space, that storing frequencies is high, for other storages, can adopt general server, adopts windows, linux or unix operating system all can.
The file server data read to deposit frequency generally can be too not high, can adopt general server, requires the capacity of server larger, adopts windows, linux or unix operating system all can.
The master network of bullet train system dynamics emulation platform is kilomega network, do hot standby by two 10,000,000,000 grades of core multi-layer switches, each subsystem access-layer switch adopts the gigabit access, high-performance computer cluster inside comprises computational grid and supervising the network, wherein computational grid adopts the Infiniband net, bandwidth is 40GB/s, and supervising the network is kilomega network.
The large system, coupled dynamics simulation platform of bullet train of the present invention comprises that foreground human-computer interaction interface part and backstage are based on distributed core calculations part, as shown in Figure 1, wherein, described foreground human-computer interaction interface partly comprises: main control module, pre-processing module, managing computing resources module, calculate monitoring module, post-processing module and system management module.Described backstage comprises based on distributed core calculations module: task scheduling modules, coupling control module, execution machine proxy module, dynamics of vehicle computing module, circuit dynamics calculation module, bow net dynamics calculation module, traction power supply computing module, aerodynamics computing module.
In Fig. 2: main control module is the interface that enters of user's usage platform, integrated pre-processing module, post-processing module, managing computing resources module, calculates the entrance of monitoring module and system management maintenance module, comprises following menu item:
The project menu item, be used for establishment of item and the relevant operation of management, comprise new project, project library management and withdraw from Submenu Items, wherein the new project Submenu Items is used for a newly-built project, project library management Submenu Items is used for inquiry, modification, the deletion of project library, withdraws from Submenu Items and is used for quitting a program;
The computation model menu item, be used for the operation that computation model creates and management is relevant, comprise subsystem pre-treatment modeling, three Submenu Itemses of initial model library management and partial model library management, wherein subsystem pre-treatment modeling Submenu Items is the entrance of pre-processing module, be used for entering dynamics of vehicle, circuit dynamics, bow net dynamics, traction power supply, the emulation pre-treatment Modeling interface of aerodynamics subsystem, the initial model library management is used for newly-built, revise, deletion, the inquiry train, circuit, the realistic model of aerodynamics subsystem, the partial model library management is used for newly-built, revise, deletion, the inquiry train, circuit, bow net, the realistic model of traction power supply subsystem, the appropriate section of utilizing the model in the partial model storehouse can partly replace the model in the initial model storehouse, in initial model storehouse and partial model storehouse, the parts of train subsystem comprise: wheel tread, rigidity car body and framework, the flexible car body of each rank mode and framework, the parts of line subsystem comprise: structure under the circuit rail, steel rail parameter, rail tread and track irregularity, the parts of bow net subsystem comprise: pantograph, contact net, the parts of traction power supply subsystem comprise: power supply facilities;
The design condition menu item, be used for the configuration of design condition and the management in design condition storehouse, comprise newly-built/open operating mode, newly-built/as to open local operating mode, design condition library management Submenu Items, wherein newly-built/open the operating mode Submenu Items and be used for organizing the coupling Simulation design condition from model database chooser system simulation model, wherein newly-built/open local operating mode Submenu Items and be used for organizing the coupling Simulation design condition from the good subsystem realistic model of user's the machine file option and installment, the design condition library management is used for revising, deletion, inquiry has configured the various design conditions of finishing or having submitted to;
Menu item is calculated in coupling, being used for that the design condition that the user configures is submitted to the backstage carries out coupling Simulation and relevant information is calculated in coupling inquired about and control, comprise that starting coupling calculates, managing computing resources, three Submenu Itemses of computation process monitoring, wherein starting coupling calculates Submenu Items and is used for that the design condition that the user configures is submitted to the backstage and carries out coupling Simulation, the managing computing resources Submenu Items is the entrance of managing computing resources module, be used for checking and the Management Calculation resource, computation process monitoring Submenu Items is the entrance of computation process monitoring module, be used for all design conditions that supervisory user is submitted to, abnormal conditions are carried out alarm;
The result of calculation menu item, be used for the Treatment Analysis of each subsystem simulation result and the management of results repository, comprise subsystem aftertreatment and results repository management Submenu Items, wherein subsystem aftertreatment Submenu Items is the entrance of post-processing module, be used for dynamics of vehicle, circuit dynamics, bow net dynamics, traction power supply, the simulation result Treatment Analysis of aerodynamics subsystem, comprise the Versatile two-dimension Data Post, the professional post-processing functions such as three-dimensional operation simulation and flow field analysis, results repository management Submenu Items is used for checking of each subsystem simulation result, download and deletion etc.;
System maintenance and Administration menu item are the entrances of system management module, are used for the maintenance and management of platform;
The help menu item is used for the display system relevant information.
In Fig. 3: newly-built in the main control module design condition menu item of foreground human-computer interaction interface part/as to open the operating mode interface, comprise with knob down:
Selection button in auto model name text frame right side is used for from the initial model storehouse or vehicle/train simulation model is selected in the condition model storehouse;
Button is selected on circuit model name text frame right side, is used for from the initial model storehouse or condition model storehouse selection circuit emulation model;
Button is selected on bow net model name text box right side, is used for from the partial model storehouse or condition model storehouse selection pantograph and contact net realistic model;
Lead for model name text box right side and select button, be used for from the partial model storehouse or condition model storehouse selection simulation of power supply system model;
Button is selected on stream solid model type name text frame right side, is used for from the initial model storehouse or condition model storehouse selection train aerodynamics realistic model;
Simulation parameter arranges button, is used for arranging simulation time, each subsystem simulation step length, output step-length, for vehicle subsystem, also train running speed can be set;
Preserve the operating mode button, be used for preserving user configured simulation calculation floor data, must after the validity check of emulation operating mode is passed through, can successfully preserve, otherwise can point out the check item that to pass through information;
Submit the coupling computed push-buttom to, be used for the design condition that the submission user has just configured and can successfully preserve, carry out the coupling on backstage and calculate;
Exit button is used for withdrawing from the design condition editing interface.
Simulation work flow process of the present invention is as shown in Figure 4:
(1) main control module is the startup entrance of client, starts main control module, enters system interface;
(2) the subsystem pre-treatment modeling Submenu Items of computation model menu item in the click main control module, start the pre-processing module of related system, as shown in Figure 5, generate the computation model of train (vehicle), circuit, bow net, traction power supply and transmission, aerodynamics subsystem, be deposited in the computation model database of each subsystem or in the local folders;
(3) the coupling design condition is set: the computing module that participates in coupling is set, from initial module storehouse, condition model storehouse or the local computation model that needs that obtains of each subsystem, simulation parameter is set again, be organized into model for coupling, as shown in Figure 3.
(4) preserve the emulation operating mode: automatically carry out the validity check of emulation operating mode before preservation, if check and judge effectively, then successfully preserve operating mode, if judge invalidly, then system makes prompting, shows to judge invalid check item;
(5) submit to coupling to calculate.Its workflow is as follows:
1) after the task scheduling submodule in the coupling computing module is received coupling calculating application, call the status information of managing computing resources module query count resource, the managing computing resources module obtains related resource information by calling execution machine proxy module;
2) the task scheduling submodule is used certain scheduling strategy, utilize execution machine proxy module with task scheduling to suitable computational resource, to coupling mechanism registration schedule information, restart each subsystem computing module and finish initialization, status information and initial results are returned coupling mechanism;
3) start the coupling calculation task, utilize coupling mechanism to control the calculation process of each subsystem computing module, and use couple strategy and data processing algorithm, realize that the coupling between correlation module is calculated.Coupling mechanism and each subsystem emulated execution machine deposit the computation process Data classification in corresponding database;
4) start the computation process monitoring module, the parameter that each subsystem in the bullet train system dynamics coupling Simulation process need to be monitored is carried out Real Time Monitoring, abnormality is carried out alarm, there is independently computing machine that it is monitored, also can monitor Submenu Items by the computation process that the coupling of clicking main control module is calculated in the menu item, carry out the monitoring of computation process, but display efficiency may be subject to the impact of network state, as shown in Figure 6.
(6) the subsystem aftertreatment modeling Submenu Items of result of calculation menu item in the click main control module starts post-processing module, carries out displaying and the evaluation of result of calculation.Platform provides two-dimentional general aftertreatment submodule, can carry out the simulation result of procedure processes, dynamics index evaluation method commonly used is provided, and automatically generate report the test by form, as shown in Figure 7, platform also provides three-dimensional operation emulation module, the train virtual operation that can carry out driving based on large system, coupled dynamical simulation results is showed, as shown in Figure 8, by the mode of two and three dimensions combination, show the performance simulation result under the interaction of bullet train and each coupled subsystem comprehensively.
Claims (1)
1. the large system, coupled dynamics simulation platform of bullet train adopts the distributed emulation system based on C/S model, comprises foreground human-computer interaction interface part and backstage based on distributed core calculations part, wherein,
Described backstage comprises based on distributed core calculations module:
Task scheduling modules, be used for the scheduling that the user submits emulation operating mode task to, according to resource situation of the calculation requirement of task, priority, computational grid etc., adopt suitable scheduling strategy, calculation task is dispatched on the suitable computational resource, if computational resource is not enough, then calculation task is according to priority waited in line, support the multi-state Automatic dispatching, supporting has the user of administration authority that scheduling strategy is expanded;
The coupling control module, be used for the coupling calculating to the emulation operating mode task-cycle integration step level of user's submission, the simulation step length of utilizing coupling control algorithm to coordinate each subsystem of subsystem such as train, circuit, bow net, traction power supply and transmission, aerodynamics make its keep space-time consistent, control the calculation process of each subsystem and carry out reception, processing and the distribution of data, realize that the coupling between each subsystem is calculated;
Execution machine proxy module, be used for obtaining the type of the performance of each computational resource CPU and utilization rate, memory size and operating position, operating system, by with the managing computing resources module communication, realize the management of network topology and the inquiry of computational resource, be used for simultaneously starting each subsystem computing module, by communicating by letter with the coupling control module, inform the running status of each subsystem computing module; Provide the basis for fault diagnosis and recovery simultaneously;
The dynamics of vehicle computing module is used for dynamics of vehicle single step emulation, exports the simulation result in this step, and communicates by letter with the coupling control module and carry out the coupling data transmission, implements to calculate with the coupling of other subsystems under the coordination of coupling control module;
Circuit dynamics calculation module is used for circuit dynamics single step emulation, exports the simulation result in this step, and communicates by letter with the coupling control module and carry out the coupling data transmission, implements to calculate with the coupling of other subsystems under the coordination of coupling control module;
Bow net dynamics calculation module is used for bow net dynamics single step emulation, exports the simulation result in this step, and communicates by letter with the coupling control module and carry out the coupling data transmission, implements to calculate with the coupling of other subsystems under the coordination of coupling control module;
The traction power supply computing module is used for traction power supply subsystem single step emulation, exports the simulation result in this step, and communicates by letter with the coupling control module and carry out the coupling data transmission, implements to calculate with the coupling of other subsystems under the coordination of coupling control module;
The aerodynamics computing module is used for train aerodynamics single step emulation, exports the simulation result in this step, and communicates by letter with the coupling control module and carry out the coupling data transmission, implements to calculate with the coupling of other subsystems under the coordination of coupling control module;
Described foreground human-computer interaction interface partly comprises:
Main control module is used for the foundation of various simulation flows and the management of emulated data, specifically comprises: be responsible for Data dissemination and the management of whole system; Be responsible for the validity of data inspection; Be responsible for the management of professional computation model storehouse, result of calculation class library; Be responsible for the tissue of Coupling Simulation Model; Be responsible for the configuration of emulation operating mode and the management in design condition storehouse; Responsible system needs the initialization of data, the initialization of each model bank, the definition of each data structure and initialization;
Pre-processing module, be used for setting up the pre-treatment model of each coupling Simulation subsystem, be realistic model with the actual physics Model Mapping of each subsystem, thereby set up the required pre-treatment input model of each subsystem emulation, comprise high speed train dynamics pre-treatment submodule, circuit dynamics pre-treatment submodule, bow net dynamics pre-treatment submodule, train aerodynamics pre-treatment submodule and traction power supply and transmission emulation pre-treatment submodule;
The managing computing resources module, be used for obtaining the information that execution machine proxy module returns, the interior available computational resource of monitor network and the operating position of each computational resource, implement the unified management of isomery exclusive-OR function system resources in computation, for the scheduling of calculation task provides foundation, provide simultaneously network topological information and hardware fault auxiliary diagnosis function;
Calculate monitoring module, be used for computation process is carried out the Real time visible monitoring, abnormal conditions are pointed out or alarm, make the computation process transparence;
Post-processing module is used for simulation result is carried out Data Management Analysis, obtains performance time-history curves or development law, comprises Versatile two-dimension Data Post submodule, three-dimensional operation ASM and professional aftertreatment submodule;
System management module is used for whole platform is carried out operation maintenance and management, such as user management, Role Management, rights management;
The main control module of described foreground human-computer interaction interface part, it is the interface that enters of user's usage platform, integrated pre-processing module, post-processing module, managing computing resources module, calculate the entrance of monitoring module and system management maintenance module, comprise following menu item:
The project menu item, be used for establishment of item and the relevant operation of management, comprise new project, project library management and withdraw from Submenu Items, wherein the new project Submenu Items is used for a newly-built project, project library management Submenu Items is used for inquiry, modification, the deletion of project library, withdraws from Submenu Items and is used for quitting a program;
The computation model menu item, be used for the operation that computation model creates and management is relevant, comprise subsystem pre-treatment modeling, three Submenu Itemses of initial model library management and partial model library management, wherein subsystem pre-treatment modeling Submenu Items is the entrance of pre-processing module, be used for entering dynamics of vehicle, circuit dynamics, bow net dynamics, traction power supply, the emulation pre-treatment Modeling interface of aerodynamics subsystem, the initial model library management is used for newly-built, revise, deletion, the inquiry train, circuit, the realistic model of aerodynamics subsystem, the partial model library management is used for newly-built, revise, deletion, the inquiry train, circuit, bow net, the realistic model of traction power supply subsystem, utilize the appropriate section of the model in the replaceable initial model of the model part storehouse in the partial model storehouse, in initial model storehouse and partial model storehouse, the parts of train subsystem comprise: wheel tread, rigidity car body and framework, the flexible car body of each rank mode and framework, the parts of line subsystem comprise: structure under the circuit rail, steel rail parameter, rail tread and track irregularity, the parts of bow net subsystem comprise: pantograph, contact net, the parts of traction power supply subsystem comprise: power supply facilities;
The design condition menu item, be used for the configuration of design condition and the management in design condition storehouse, comprise newly-built/open operating mode, newly-built/as to open local operating mode, design condition library management Submenu Items, wherein newly-built/open the operating mode Submenu Items and be used for organizing the coupling Simulation design condition from model database chooser system simulation model, newly-built/as to open local operating mode Submenu Items for organizing the coupling Simulation design condition from the good subsystem realistic model of user's the machine file option and installment, the design condition library management is used for revising, deletion, inquiry has configured the various design conditions of finishing or having submitted to;
Menu item is calculated in coupling, being used for that the design condition that the user configures is submitted to the backstage carries out coupling Simulation and relevant information is calculated in coupling inquired about and control, comprise that starting coupling calculates, managing computing resources, three Submenu Itemses of computation process monitoring, wherein starting coupling calculates Submenu Items and is used for that the design condition that the user configures is submitted to the backstage and carries out coupling Simulation, the managing computing resources Submenu Items is the entrance of managing computing resources module, be used for checking and the Management Calculation resource, computation process monitoring Submenu Items is the entrance of computation process monitoring module, be used for all design conditions that supervisory user is submitted to, abnormal conditions are carried out alarm;
The result of calculation menu item, be used for the Treatment Analysis of each subsystem simulation result and the management of results repository, comprise subsystem aftertreatment and results repository management Submenu Items, wherein subsystem aftertreatment Submenu Items is the entrance of post-processing module, be used for dynamics of vehicle, circuit dynamics, bow net dynamics, traction power supply, the simulation result Treatment Analysis of aerodynamics subsystem, comprise the Versatile two-dimension Data Post, the professional post-processing functions such as three-dimensional operation simulation and flow field analysis, results repository management Submenu Items is used for checking of each subsystem simulation result, download and deletion etc.;
System maintenance and Administration menu item are the entrances of system management module, are used for the maintenance and management of platform;
The help menu item is used for the display system relevant information.
Newly-built in the main control module design condition menu item of described foreground human-computer interaction interface part/as to open the operating mode interface, comprise with knob down:
Selection button in auto model name text frame right side is used for from the initial model storehouse or vehicle/train simulation model is selected in the condition model storehouse;
Button is selected on circuit model name text frame right side, is used for from the initial model storehouse or condition model storehouse selection circuit emulation model;
Button is selected on bow net model name text box right side, is used for from the partial model storehouse or condition model storehouse selection pantograph and contact net realistic model;
Lead for model name text box right side and select button, be used for from the partial model storehouse or condition model storehouse selection simulation of power supply system model;
Button is selected on stream solid model type name text frame right side, is used for from the initial model storehouse or condition model storehouse selection train aerodynamics realistic model;
Emulation arranges button, is used for arranging simulation time, each subsystem simulation step length, output step-length, for vehicle subsystem, also train running speed can be set;
Preserve the operating mode button, be used for preserving user configured simulation calculation floor data, must after the validity check of emulation operating mode is passed through, can successfully preserve, otherwise can point out the check item that to pass through information;
The coupling computed push-buttom is used for the design condition that the submission user has just configured and can successfully preserve, and carries out the coupling on backstage and calculates;
Exit button is used for withdrawing from the design condition editing interface.
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Application publication date: 20130116 |