CN108304670B - Method and system for designing parameters of parts - Google Patents
Method and system for designing parameters of parts Download PDFInfo
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- CN108304670B CN108304670B CN201810145033.3A CN201810145033A CN108304670B CN 108304670 B CN108304670 B CN 108304670B CN 201810145033 A CN201810145033 A CN 201810145033A CN 108304670 B CN108304670 B CN 108304670B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
Abstract
The invention provides a method and a system for designing parameters of parts, wherein the method for designing the parameters of the parts comprises the following steps: reading a parameter form containing controllable model parameters, and generating a model database for simulation according to the parameter form; selecting at least one simulation driving file to drive the model database to perform simulation test; and reading a simulation test result of the model database after the simulation test, and outputting a vehicle dynamic performance index calculation report according to the simulation test result. The technical scheme provided by the invention solves the problem of low efficiency in the development process of the existing vehicle type products.
Description
Technical Field
The invention relates to a tabular modeling of a multi-body dynamics model, in particular to a method and a system for designing part parameters.
Background
Multi-body system modeling software Adams (Automatic Dynamic Analysis of Mechanical Systems, Automatic Analysis of Mechanical system dynamics) is widely applied in the development process of vehicle type products, and especially when a new chassis structure is designed, the design of critical part characteristic parameters based on CAE (Computer Aided Engineering) simulation Analysis is a very important step.
At present, CAE simulation analysis is widely performed by adopting multi-body system modeling software Adams/Car, and Adams/Car can generate part characteristic parameters into a model database for management and control, but can not perform simulation test on the model database, still needs workers to perform performance index calculation through mechanical and repeated work, and images the efficiency of a vehicle model product development process.
Disclosure of Invention
The embodiment of the invention provides a method and a system for designing parameters of parts, which aim to solve the problem of low efficiency in the development process of existing vehicle type products.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for designing parameters of a component, including:
reading a parameter form containing controllable model parameters, and generating a model database for simulation according to the parameter form;
selecting at least one simulation driving file to drive the model database to perform simulation test;
and reading a simulation test result of the model database after the simulation test, and outputting a vehicle dynamic performance index calculation report according to the simulation test result.
Optionally, the step of reading the simulation test result of the model database after the simulation test and outputting the vehicle dynamics performance index calculation report according to the simulation test result includes:
reading a simulation test result of the parameter form in the model database after the simulation test;
and analyzing the data sequence of the target parameter form according to the simulation test result of the parameter form, calculating the vehicle dynamic performance index, and outputting a calculation report.
Optionally, the step of selecting at least one simulation driver file to drive the model database for simulation testing includes:
selecting at least one preset simulation driving file to drive the model database to perform simulation test;
or selecting at least one simulation driving file to drive the model database to perform simulation test according to a user input instruction.
Optionally, before the step of reading a parameter form containing controllable model parameters and generating a model database for simulation according to the parameter form, the method further includes:
and constructing an alternative parameter value set of the characteristic parameters of the target part, and generating the parameter form.
Alternatively, the vehicle dynamics index includes at least one of an understeer degree, a roll gradient, a front stabilizer bar contribution amount, and a rear stabilizer bar contribution amount.
In a second aspect, an embodiment of the present invention further provides a component parameter design system, including:
the reading module is used for reading a parameter form containing controllable model parameters and generating a model database for simulation according to the parameter form;
the simulation module is used for selecting at least one simulation driving file to drive the model database to carry out simulation test;
and the output module is used for reading the simulation test result of the model database after the simulation test and outputting a vehicle dynamic performance index calculation report according to the simulation test result.
Optionally, the output module includes:
the reading unit is used for reading a simulation test result of the parameter form in the model database after the simulation test;
and the output unit is used for analyzing the data sequence of the target parameter form according to the simulation test result of the parameter form, calculating the vehicle dynamics performance index and outputting a calculation report.
Optionally, the simulation module is further configured to:
selecting at least one preset simulation driving file to drive the model database to perform simulation test;
or selecting at least one simulation driving file to drive the model database to perform simulation test according to a user input instruction.
Optionally, the part parameter design system further includes:
and the generating module is used for constructing a candidate parameter value set of the characteristic parameters of the target part and generating the parameter form.
Alternatively, the vehicle dynamics index includes at least one of an understeer degree, a roll gradient, a front stabilizer bar contribution amount, and a rear stabilizer bar contribution amount.
In a third aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the part parameter design method as described in the first aspect.
According to the technical scheme provided by the embodiment of the invention, a parameter form containing controllable model parameters is read, and a model database for simulation is generated according to the parameter form; selecting at least one simulation driving file to drive the model database to perform simulation test; and then reading a simulation test result of the model database after the simulation test, and outputting a vehicle dynamic performance index calculation report according to the simulation test result. Therefore, the design of the part parameters can be automatically finished from the reading of the parameter form to the output of the simulation test result, and the performance index calculation by workers is not needed, so that the working efficiency of the part parameter design is improved, and the efficiency of the vehicle type product development process is also improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a flow chart of a method for designing parameters of a component according to an embodiment of the present invention;
FIG. 2 is a functional block diagram of a component parameter design system according to an embodiment of the present invention;
FIG. 3 is a functional block diagram of another component parameter design system provided by an embodiment of the present invention;
fig. 4 is a functional block diagram of another component parameter design system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a method for designing parameters of a component according to an embodiment of the present invention, as shown in fig. 1, including the following steps:
In the embodiment of the invention, the parameter form is provided with a plurality of sub-pages, and one sub-page corresponds to one target part characteristic parameter of the vehicle chassis. The target part characteristic parameter may include at least one of a front spring rate, a rear spring rate, a front absorber compression damping, a front absorber rebound damping, a rear absorber compression damping, a rear absorber rebound damping, a front stabilizer bar diameter, and a rear stabilizer bar diameter.
And generating a model database for simulation according to the parameter form, wherein the model database comprises a plurality of subsystems. Specifically, the model database may be automatically generated according to a preset rule, or may be generated according to a parameter form selected by a user. For example, a subsystem configuration file selected by a user is obtained, and the read model parameters of the parameter form are written into the subsystem file needing configuration; and generating a new assembly file by using preset data information and the subsystem file, storing the newly generated subsystem file and the assembly file under a set path, and copying a required template file and other attribute files under the set path so as to generate a model database for simulation.
In this embodiment of the present invention, before the step 101, the method may further include:
and constructing an alternative parameter value set of the characteristic parameters of the target part, and generating the parameter form.
It can be understood that when designing the chassis structure of the vehicle type, the optimal parameter value of the key elastic element of the chassis needs to be selected according to a plurality of parameter values. As shown in the following table, each of the candidate parameter value sets of the target part characteristic parameters includes a plurality of candidate parameter values.
| Characteristic parameters of target part | Set of alternative parameter values |
| Front spring rate KF | {KF1，KF2，…KFn1} |
| Rear spring rate KR | {KR1，KR2，…KRn2} |
| Front shock absorber compression damping DcF | {DcF1，DcF2，…DcFn3} |
| Front shock absorber rebound damping DrF | {DrF1，DrF2，…DrFn4} |
| Rear shock absorber compression damping DcR | {DcR1，DcR2，…DcRn5} |
| Rear shock absorber rebound damping DrR | {DrR1，DrR2，…DrRn6} |
| Diameter phi AF of front stabilizer bar | {ΦAF1，ΦAF2，…ΦAFn7} |
| Diameter phi AR of rear stabilizer bar | {ΦAR1，ΦAR2，…ΦARn8} |
It should be noted that the target component characteristic parameters are not limited to the characteristic parameters in the table, and the target component characteristic parameters are at least one, and a parameter table is generated according to the candidate parameter value set of the target component characteristic parameters.
And 102, selecting at least one simulation drive file to drive the model database to perform simulation test.
The simulation driver file may be preset, or may be manually selected by a user before performing the simulation test. The step 102 may include:
selecting at least one preset simulation driving file to drive the model database to perform simulation test;
or selecting at least one simulation driving file to drive the model database to perform simulation test according to a user input instruction.
In an implementation scheme of the embodiment of the present invention, the method may be applied to Adams _ Form software. When the simulation driver file is preset, at least one simulation driver file pre-stored in the Adams _ Form software system may be selected to drive the model database to perform the simulation test.
Alternatively, the model database may be driven to perform the simulation test according to a user input instruction, that is, a user selects at least one simulation driver file in the Adams _ Form software.
It should be noted that the simulation test may be performed in batch, that is, the simulation test may be performed on multiple parameter forms in the model database at the same time. Therefore, the operation time of workers can be saved, and the working efficiency is improved.
And 103, reading a simulation test result of the model database after the simulation test, and outputting a vehicle dynamic performance index calculation report according to the simulation test result.
In an implementation scheme of the embodiment of the invention, the simulation test result can be stored in the Adams _ Form software working folder in the forms of res, req and the like. And reading the stored simulation test results, wherein the simulation test results comprise the simulation test results of each parameter form in the data model base. And calculating the vehicle dynamic performance index according to the simulation test result, and outputting a calculation report.
Specifically, the step 103 includes:
reading a simulation test result of the parameter form in the model database after the simulation test;
and analyzing the data sequence of the target parameter form according to the simulation test result of the parameter form, calculating the vehicle dynamic performance index, and outputting a calculation report.
It can be understood that after the parameter form is read, the multi-body model of the corresponding parameter is automatically and sequentially generated cdb, and the simulation test is to perform the simulation test on the parameter form in the model database, that is, to perform the simulation test on the characteristic parameter of the target part. And performing steady-state rotation event simulation test through the simulation drive file, and reading the simulation test result of each parameter form in the model database after the simulation test.
Analyzing the data sequence of the target parameter form according to the simulation test result of each parameter form, and calculating the vehicle dynamic performance index, wherein the vehicle dynamic performance index may include: understeer, tilt gradient, front/rear stabilizer contribution, etc. And outputting a calculation report after the calculation of the vehicle dynamic performance index is completed. Furthermore, the staff can visually check the report collection of the characteristic parameters of the target part, and the result comparison is convenient for the staff.
In the technical scheme provided by the embodiment of the invention, a parameter form containing controllable model parameters is read, and a model database for simulation is generated according to the parameter form; selecting at least one simulation driving file to drive the model database to perform simulation test; and then reading a simulation test result of the model database after the simulation test, and outputting a vehicle dynamic performance index calculation report according to the simulation test result. Therefore, the staff can visually check the report collection of the characteristic parameters of the target part, the staff can conveniently and visually select the optimal parameters in the characteristic parameters of the target part to carry out matching combination, and the design of the parameters of the part is further completed. By the method provided by the embodiment of the invention, the design of the part parameters can be automatically finished from the reading of the parameter form to the output of the simulation test result, and the performance index calculation by workers is not needed, so that the working efficiency of the part parameter design is improved, and the efficiency of the vehicle type product development process is also improved.
Referring to fig. 2, fig. 2 is a functional block diagram of a component parameter design system 200 according to an embodiment of the present invention. As shown in fig. 2, the part parameter design system 200 includes:
the reading module 201 is configured to read a parameter form including controllable model parameters, and generate a model database for simulation according to the parameter form;
the simulation module 202 is used for selecting at least one simulation driving file to drive the model database to perform simulation test;
and the output module 203 is used for reading the simulation test result of the model database after the simulation test and outputting a vehicle dynamic performance index calculation report according to the simulation test result.
Optionally, as shown in fig. 3, the output module 203 includes:
a reading unit 2031, configured to read a simulation test result of the parameter form in the model database after the simulation test;
the output unit 2032 is configured to analyze the data sequence of the target parameter form according to the simulation test result of the parameter form, calculate a vehicle dynamics performance index, and output a calculation report.
Optionally, the simulation module 202 is further configured to:
selecting at least one preset simulation driving file to drive the model database to perform simulation test;
or selecting at least one simulation driving file to drive the model database to perform simulation test according to a user input instruction.
Optionally, as shown in fig. 4, the component parameter design system 200 further includes:
and the generating module 204 is configured to construct a candidate parameter value set of the characteristic parameters of the target component, and generate the parameter form.
Alternatively, the vehicle dynamics index includes at least one of an understeer degree, a roll gradient, a front stabilizer bar contribution amount, and a rear stabilizer bar contribution amount.
In the technical scheme provided by the embodiment of the invention, a reading module 201 reads a parameter form containing controllable model parameters and generates a model database for simulation according to the parameter form; the simulation module 202 selects at least one simulation driver file to drive the model database for simulation test; and the output module 203 reads the simulation test result of the model database after the simulation test, and outputs a vehicle dynamics performance index calculation report according to the simulation test result. Therefore, the staff can visually check the report collection of the characteristic parameters of the target part, the staff can conveniently and visually select the optimal parameters in the characteristic parameters of the target part to carry out matching combination, and the design of the parameters of the part is further completed. By the method provided by the embodiment of the invention, the design of the part parameters can be automatically finished from the reading of the parameter form to the output of the simulation test result, and the performance index calculation by workers is not needed, so that the working efficiency of the part parameter design is improved, and the efficiency of the vehicle type product development process is also improved.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned method for designing part parameters, and can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A method for designing parameters of a part is characterized by comprising the following steps:
reading a parameter form containing controllable model parameters, and generating a model database for simulation according to the parameter form;
selecting at least one simulation driving file to drive the characteristic parameters of the target parts in the model database to carry out simulation test;
reading a simulation test result of the model database after the simulation test, and outputting a vehicle dynamic performance index calculation report according to the simulation test result;
before the step of reading a parameter form containing controllable model parameters and generating a model database for simulation according to the parameter form, the method further comprises the following steps:
constructing an alternative parameter value set of the characteristic parameters of the target part, and generating the parameter form;
the parameter form is provided with a plurality of sub pages, and one sub page corresponds to one target part characteristic parameter of the vehicle chassis; the target part characteristic parameters comprise at least one of front spring stiffness, rear spring stiffness, front shock absorber compression damping, front shock absorber recovery damping, rear shock absorber compression damping, rear shock absorber recovery damping, front stabilizer bar diameter and rear stabilizer bar diameter.
2. The method for designing parameters of a component according to claim 1, wherein the step of reading the simulation test result of the model database after the simulation test and outputting the calculation report of the vehicle dynamics performance index according to the simulation test result comprises:
reading a simulation test result of the parameter form in the model database after the simulation test;
and analyzing the data sequence of the target parameter form according to the simulation test result of the parameter form, calculating the vehicle dynamic performance index, and outputting a calculation report.
3. The method for designing parameters of parts according to claim 1, wherein said step of selecting at least one simulation driver file to drive said model database for simulation testing comprises:
selecting at least one preset simulation driving file to drive the model database to perform simulation test;
or selecting at least one simulation driving file to drive the model database to perform simulation test according to a user input instruction.
4. The part parameter design method according to any one of claims 1 to 3, wherein the vehicle dynamic performance index includes at least one of an understeer degree, a roll gradient, a front stabilizer bar contribution amount, and a rear stabilizer bar contribution amount.
5. A part parameter design system, comprising:
the reading module is used for reading a parameter form containing controllable model parameters and generating a model database for simulation according to the parameter form;
the simulation module is used for selecting at least one simulation driving file to drive the characteristic parameters of the target part in the model database to carry out simulation test;
the output module is used for reading a simulation test result of the model database after the simulation test and outputting a vehicle dynamic performance index calculation report according to the simulation test result;
the part parameter design system further comprises:
the generating module is used for constructing an alternative parameter value set of the characteristic parameters of the target part and generating the parameter form;
the parameter form is provided with a plurality of sub pages, and one sub page corresponds to one target part characteristic parameter of the vehicle chassis; the target part characteristic parameters comprise at least one of front spring stiffness, rear spring stiffness, front shock absorber compression damping, front shock absorber recovery damping, rear shock absorber compression damping, rear shock absorber recovery damping, front stabilizer bar diameter and rear stabilizer bar diameter.
6. The part parameter design system of claim 5, wherein the output module comprises:
the reading unit is used for reading a simulation test result of the parameter form in the model database after the simulation test;
and the output unit is used for analyzing the data sequence of the target parameter form according to the simulation test result of the parameter form, calculating the vehicle dynamics performance index and outputting a calculation report.
7. The part parameter design system of claim 5, wherein the simulation module is further configured to:
selecting at least one preset simulation driving file to drive the model database to perform simulation test;
or selecting at least one simulation driving file to drive the model database to perform simulation test according to a user input instruction.
8. The part parameter design system according to any one of claims 5 to 7, wherein the vehicle dynamic performance index includes at least one of an understeer degree, a roll gradient, a front stabilizer bar contribution amount, and a rear stabilizer bar contribution amount.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the part parameter design method according to any one of claims 1 to 4.
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| CN102523249A (en) * | 2011-11-24 | 2012-06-27 | 哈尔滨工业大学 | Distributed long-distance simulation system and simulation method based on Web |
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