CN104036068A - Car crash safety simulation analysis and optimization design integrated system - Google Patents
Car crash safety simulation analysis and optimization design integrated system Download PDFInfo
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Abstract
The invention relates to a car crash safety simulation analysis and optimization design integrated system, and discloses an optimization design system driven virtual actuator loop execution analysis and simulation analysis system. Virtual actuators feed back the structure to a simulation analysis system through loop execution analysis, the simulation analysis system automatically extracts data to virtual sensors, the virtual sensors feed back an automatic transfer structure to an optimization design system, and the overall efficiency of automobile analysis and optimization is greatly improved. Due to the fact that current scheme is based on independent software, data transmission is carried out through files, and result extraction needs more manual operations. According to the technical scheme, after the virtual actuators (a structure actuator and the like) and the virtual sensors (a deformation sensor, a B-column acceleration sensor and the like) which are relevant to car crashes are defined, CAE analysis and result extraction can be directly driven, data transmission is carried out inside the system, and therefore efficiency is improved.
Description
Technical field
The present invention relates to Computer Simulation applied technical field, relate in particular to a kind of automobile Crash Safety Design of Vehicles simulation analysis optimal design integrated system.
Background technology
Automobile collision accident occupies very large ratio in traffic hazard, grave danger driver and occupant's life security.Security when countries in the world have all been put into effect relevant laws and rules and ensured car crass.The grading of each manufacturer in order to obtain when authenticating, need to carry out collision simulation and assessment to design.Then be optimized design, then re-start check and correction.In the such work of automotive field, be all often separately to carry out at present, manual statistics and operation that intermediate demand is a large amount of, thus consumed a large amount of time and efforts.And along with the intensification of market competition, provide fast the embodiment of core competitiveness of the automobile Ye Shige manufacturer of high quality design.This makes how to add the technical matters that the structure of speed automobile and the integration of property parameters design, simulation analysis and optimal design become a core.
Current computer Computer Aided Design (CAD), computer-aided engineering (CAE) and Optimization Design play an important role in the research and development in the fields such as current automobile, Aeronautics and Astronautics, the energy, generation, manufacture.In Design of Industrial Product flow process, conventionally first need to obtain initial structural parameters by design; Then by analytical approach, structure proofreaded and verify; Then further by optimization method, come reverse to obtain optimum structure or property parameters.But due to CAE and the optimal design reason as independent educational project development, at present simulation analysis and optimal design are main or exist in the mode of stand alone software operation, between them the transmission of data mainly by text or independently Parameter File complete.Although, as having realized driving simulation routine analyzer in optimal design in the part softwares such as Isight or technical scheme, but due to the independence of simulation analysis program and Optimized Program, can only realize at present by revising the mode of the input file of simulation analysis program and driving.From in essence, this mode still realizes by external drive.Another significant problem of this mode is to obtain directly and accurately result of calculation, particularly when result is not by unitary variant value, but while being drawn by the COMPREHENSIVE CALCULATING of a plurality of variablees.
Summary of the invention
The object of the invention is to solve the problem of above-mentioned existence, a kind of automobile Crash Safety Design of Vehicles simulation analysis optimal design integrated system that how to add the structure of speed automobile and the integration of property parameters design, simulation analysis and optimal design is provided.
The object of the invention is to realize as follows: a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system, described integrated system comprises: virtual actuator is used for driving parameter to change, after element opening relationships in it and simulation analysis, can in the scope of appointment, to parameter, change, thereby can driving simulation analytical approach calculate and solve for different parameters;
Virtual-sensor is all types of for insert some in realistic model, and virtual architecture reaches the logical block of the target of directly obtaining corresponding result or information;
Simulation analysis system, for input parameter being divided into unit, characteristic and load, adds the result after analysis and calculation, and simulation analysis system can represent with simulation analysis five-tuple model;
Optimum Design System, can be decomposed into design variable, design object and design constraint, then in conjunction with optimized algorithm and optimum results, genetic algorithms can represent with optimal design five-tuple model for input;
Described Optimum Design System drives virtual actuator circulation execution analysis simulation analysis system, described virtual actuator feeds back to simulation analysis system by circulation execution analysis by structure, described simulation analysis system extracts data automatically to virtual-sensor, and described virtual-sensor feeds back to Optimum Design System by automatic transferring structure.
Described in technique scheme, simulation analysis five-tuple model comprises respectively: Element: the real object that macroelement is simulation analysis (carrier of analyzing), and this carrier is mainly practical structures or the parts (as automobile dash board, bumper or car load etc.) that physics exists; Property: characteristic is shared attribute information static on some analytic targets, as material, cross section etc.; Load: load is analyzed external influence factors or condition in load for being carried in these, as stress load, temperature loading, boundary condition etc.; Analysis: analyze as all kinds of concrete simulating analysis and appraisal procedure; Result: the data that calculate and the form based on data processing, cloud atlas, report.
Above-mentioned a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system, described optimal design five-tuple model comprises respectively: Variable: design variable is the sign of variable in model, comprises structural parameters, characterisitic parameter and load parameter etc.; Target: design object is finally for weighing the quality of model or the result of rational index or index; Constraint: design constraint is the rule that system need to be observed when considering to optimize, as margin of safety need to meet minimum requirements etc.; OptAlgorithm: Optimization Design is all kinds of specific algorithms that are optimized design; OptResult: the optimum value of the design variable that optimum results calculates by optimization.
Above-mentioned a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system, described Optimum Design System comprises that design variable, design object and design constraint coherent element in simulation analysis system has direct or indirect corresponding relation, set up corresponding relation between element and can break the estrangement of two intermodules, and make Optimum Design System can drive simulation analysis system, and therefrom directly obtain the data wanted, thereby raising efficiency and the quality of data greatly.
Described in technique scheme, virtual-sensor comprises general virtual sensor and particular virtual sensor, and described general virtual sensor comprises as temperature sensor, deformation-sensor, B post acceleration transducer, front coaming plate intrusion quantity sensor and collision assessment sensor; And described particular virtual sensor is relevant to specific system, the B post acceleration transducer in Crash Safety Design of Vehicles system, the intensity sensor in motor optimization design system.
Described in technique scheme, temperature sensor is to comprise that a node location information acting on is three-dimensional coordinate, described deformation-sensor: comprise a reference points of origin and deformation position dot information; B post acceleration transducer comprises a node location information on B post parts; Front coaming plate is invaded quantity sensor and is comprised a reference points of origin and a plurality of intrusion amount sensing point; Collision assessment sensor has comprised the achievement data defining in all kinds of rules, when realizing, these data need to be extracted, and independently stores.
Described in technique scheme, virtual actuator comprises dummy unit actuator, virtual characteristics actuator and Virtual Load actuator.
Described in technique scheme, virtual actuator defines associated object, and structure actuator can and only can associated member; The driving being associated with the design parameter of structure member variable is provided simultaneously, and defines type of variables, scope, value length.
Advantage of the present invention: the whole efficiency that 1) has promoted greatly automobile analysis and optimization: current scheme is owing to being all based on software independently, and data transmission adopts file to carry out, also needs a lot of manual operations for the extraction of result; And technical solution of the present invention, after definition car crass relevant virtual actuator (structure actuator etc.) and virtual-sensor (deformation-sensor, B post acceleration transducer etc.), can directly drive cae analysis, extract result, data be delivered in internal system, thereby the efficiency improving;
2) there is higher data consistency: by modeling techniques such as " generalized models " and " agent model ", realized seamless link and the transmission of simulation analysis data and optimal design data, data exist as an integral system in internal system, reduced the probability of makeing mistakes that importing/derivation may be introduced, the system of using the technical program to build has higher consistance and globality;
3) reduce and use difficulty, promote user and experience: technical solution of the present invention provides technical support for building pointed vehicle collision simulation analysis and optimization design integration system, can reduce the difficulty of use simultaneously.The system that adopts technical solution of the present invention to build, has stronger specific aim and practicality, and user can more effective use, and does not need that Optimization Theory etc. was had to dark understanding and requirement.
4) be with good expansibility: in patent of the present invention, technical scheme designs for vehicle collision simulation analysis and optimization, but by the height refine to CAE simulation analysis and optimal design, make to adopt the frame system of technical solution of the present invention can adapt to the different demands of different field, be with good expansibility.
Accompanying drawing explanation
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein below
Fig. 1 is vehicle collision simulation analysis and optimization design integration technology of the present invention and systematic schematic diagram;
Fig. 2 is the detailed mapping relations figure between element of the present invention;
Fig. 3 is that technical solution of the present invention element of the present invention forms and top layer graph of a relation.
embodiment:
See shown in Fig. 1, Fig. 2 and Fig. 3, a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system, described integrated system comprises: virtual actuator is used for driving parameter to change, after element opening relationships in it and simulation analysis, can in the scope of appointment, to parameter, change, thereby can driving simulation analytical approach calculate and solve for different parameters;
Virtual-sensor is all types of for insert some in realistic model, and virtual architecture reaches the logical block of the target of directly obtaining corresponding result or information;
Simulation analysis system, for input parameter being divided into unit, characteristic and load, adds the result after analysis and calculation, and simulation analysis system can represent with simulation analysis five-tuple model;
Optimum Design System, can be decomposed into design variable, design object and design constraint, then in conjunction with optimized algorithm and optimum results, genetic algorithms can represent with optimal design five-tuple model for input;
Described Optimum Design System drives virtual actuator circulation execution analysis simulation analysis system, described virtual actuator feeds back to simulation analysis system by circulation execution analysis by structure, described simulation analysis system extracts data automatically to virtual-sensor, and described virtual-sensor feeds back to Optimum Design System by automatic transferring structure.
Described simulation analysis five-tuple model comprises respectively: Element: the real object that macroelement is simulation analysis (carrier of analyzing), and this carrier is mainly practical structures or the parts (as automobile dash board, bumper or car load etc.) that physics exists; Property: characteristic is shared attribute information static on some analytic targets, as material, cross section etc.; Load: load is analyzed external influence factors or condition in load for being carried in these, as stress load, temperature loading, boundary condition etc.; Analysis: analyze as all kinds of concrete simulating analysis and appraisal procedure; Result: the data that calculate and the form based on data processing, cloud atlas, report.
Described optimal design five-tuple model comprises respectively: Variable: design variable is the sign of variable in model, comprises structural parameters, characterisitic parameter and load parameter etc.; Target: design object is finally for weighing the quality of model or the result of rational index or index; Constraint: design constraint is the rule that system need to be observed when considering to optimize, as margin of safety need to meet minimum requirements etc.; OptAlgorithm: Optimization Design is all kinds of specific algorithms that are optimized design; OptResult: the optimum value of the design variable that optimum results calculates by optimization.
Described Optimum Design System comprises that design variable, design object and design constraint coherent element in simulation analysis system has direct or indirect corresponding relation, set up corresponding relation between element and can break the estrangement of two intermodules, and make Optimum Design System can drive simulation analysis system, and therefrom directly obtain the data wanted, thereby raising efficiency and the quality of data greatly.
Described virtual-sensor comprises general virtual sensor and particular virtual sensor, and described general virtual sensor comprises as temperature sensor, deformation-sensor, B post acceleration transducer, front coaming plate intrusion quantity sensor and collision assessment sensor; And described particular virtual sensor is relevant to specific system, the B post acceleration transducer in Crash Safety Design of Vehicles system, the intensity sensor in motor optimization design system.
Described temperature sensor is to comprise that a node location information acting on is three-dimensional coordinate, described deformation-sensor: comprise a reference points of origin and deformation position dot information; B post acceleration transducer comprises a node location information on B post parts; Front coaming plate is invaded quantity sensor and is comprised a reference points of origin and a plurality of intrusion amount sensing point; Collision assessment sensor has comprised the achievement data defining in all kinds of rules, when realizing, these data need to be extracted, and independently stores.
Described virtual actuator comprises dummy unit actuator, virtual characteristics actuator and Virtual Load actuator.
Described virtual actuator defines associated object, and structure actuator can and only can associated member; The driving being associated with the design parameter of structure member variable is provided simultaneously, and defines type of variables, scope, value length.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a Crash Safety Design of Vehicles simulation analysis optimal design integrated system, it is characterized in that: described integrated system comprises: virtual actuator is used for driving parameter to change, after element opening relationships in it and simulation analysis, can in the scope of appointment, to parameter, change, thereby can driving simulation analytical approach calculate and solve for different parameters;
Virtual-sensor is all types of for insert some in realistic model, and virtual architecture reaches the logical block of the target of directly obtaining corresponding result or information;
Simulation analysis system, for input parameter being divided into unit, characteristic and load, adds the result after analysis and calculation, and simulation analysis system can represent with simulation analysis five-tuple model;
Optimum Design System, can be decomposed into design variable, design object and design constraint, then in conjunction with optimized algorithm and optimum results, genetic algorithms can represent with optimal design five-tuple model for input;
Described Optimum Design System drives virtual actuator circulation execution analysis simulation analysis system, described virtual actuator feeds back to simulation analysis system by circulation execution analysis by structure, described simulation analysis system extracts data automatically to virtual-sensor, and described virtual-sensor feeds back to Optimum Design System by automatic transferring structure.
2. a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system according to claim 1, it is characterized in that: described simulation analysis five-tuple model comprises respectively: Element: the real object that macroelement is simulation analysis (carrier of analyzing), this carrier is mainly practical structures or the parts (as automobile dash board, bumper or car load etc.) that physics exists; Property: characteristic is shared attribute information static on some analytic targets, as material, cross section etc.; Load: load is analyzed external influence factors or condition in load for being carried in these, as stress load, temperature loading, boundary condition etc.; Analysis: analyze as all kinds of concrete simulating analysis and appraisal procedure; Result: the data that calculate and the form based on data processing, cloud atlas, report.
3. a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system according to claim 1, it is characterized in that: described optimal design five-tuple model comprises respectively: Variable: design variable is the sign of variable in model, comprises structural parameters, characterisitic parameter and load parameter etc.; Target: design object is finally for weighing the quality of model or the result of rational index or index; Constraint: design constraint is the rule that system need to be observed when considering to optimize, as margin of safety need to meet minimum requirements etc.; OptAlgorithm: Optimization Design is all kinds of specific algorithms that are optimized design; OptResult: the optimum value of the design variable that optimum results calculates by optimization.
4. a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system according to claim 1, it is characterized in that: described Optimum Design System comprises that design variable, design object and design constraint coherent element in simulation analysis system has direct or indirect corresponding relation, set up corresponding relation between element and can break the estrangement of two intermodules, and make Optimum Design System can drive simulation analysis system, and therefrom directly obtain the data wanted, thereby raising efficiency and the quality of data greatly.
5. a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system according to claim 1, it is characterized in that: described virtual-sensor comprises general virtual sensor and particular virtual sensor, described general virtual sensor comprises as temperature sensor, deformation-sensor, B post acceleration transducer, front coaming plate intrusion quantity sensor and collision assessment sensor; And described particular virtual sensor is relevant to specific system, the B post acceleration transducer in Crash Safety Design of Vehicles system, the intensity sensor in motor optimization design system.
6. a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system according to claim 5, it is characterized in that: described temperature sensor is to comprise that a node location information acting on is three-dimensional coordinate, described deformation-sensor: comprise a reference points of origin and deformation position dot information; B post acceleration transducer comprises a node location information on B post parts; Front coaming plate is invaded quantity sensor and is comprised a reference points of origin and a plurality of intrusion amount sensing point; Collision assessment sensor has comprised the achievement data defining in all kinds of rules, when realizing, these data need to be extracted, and independently stores.
7. a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system according to claim 1, is characterized in that: described virtual actuator comprises dummy unit actuator, virtual characteristics actuator and Virtual Load actuator.
8. a kind of Crash Safety Design of Vehicles simulation analysis optimal design integrated system according to claim 7, is characterized in that: described virtual actuator defines associated object, and structure actuator can and only can associated member; The driving being associated with the design parameter of structure member variable is provided simultaneously, and defines type of variables, scope, value length.
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| CN105468859A (en) * | 2015-11-27 | 2016-04-06 | 郑州航空工业管理学院 | Industrial design service platform |
| CN105561535A (en) * | 2015-12-10 | 2016-05-11 | 河南科技学院 | Physical fitness management system based on internet of things technology |
| CN105573199A (en) * | 2015-12-10 | 2016-05-11 | 河南科技大学 | Transplanting machine control system |
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| CN108595787A (en) * | 2018-04-04 | 2018-09-28 | 江苏理工学院 | A kind of FRP anticollisions girder construction/material cooperative optimization method |
| CN108984917A (en) * | 2018-07-20 | 2018-12-11 | 北京航空航天大学 | Large aircraft flies control actuating system intelligent design and evaluation method |
| CN114638056A (en) * | 2020-12-16 | 2022-06-17 | 保时捷股份公司 | Computer-implemented method for modifying components of a computer-generated model of a vehicle |
| CN114462144A (en) * | 2022-01-20 | 2022-05-10 | 奇瑞汽车股份有限公司 | Structural optimization method, device and computer storage medium for automobile B-pillar |
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