CN102663157A - Method for designing and developing mechanical product modification and optimization system - Google Patents

Abstract

The design and development method of mechanical product variant optimization system is applied to the design and development of mechanical product variant optimization system. The method described in the invention includes four steps: object research, establishment of a virtual prototype model, optimization design analysis and verification, and establishment of an automatic system. The system developed by this method is composed of four modules: dimension variation calculation module, performance optimization calculation module, parameter modification simulation analysis module, and design report output module. This method consolidates design experience, structural information, and optimization schemes into the software, and uses object-oriented development technology and analysis software's own development tools, text editing software VBA, and data storage and transfer processing schemes to realize the automation system. develop. The method described in the invention quickly and efficiently realizes the design and development of the mechanical product variation optimization system.

Description

Design and development method of mechanical product variant optimization system

technical field

The invention relates to the design and development of a mechanical product design system, in particular to a design and development method of a mechanical product variant optimization system.

Background technique

Variant design is a classification definition of design methods and processes, which refers to extracting existing designs or design plans and making specific modifications to produce a new product similar to the original design. This kind of modification generally does not destroy the basic principles and basic structural features of the original design. It is a parameter modification or a partial adjustment of the structure or both. Its purpose is to produce new products quickly, with high quality and at low cost. Meet the requirements of an ever-changing market. In the process of variant design of actual mechanical products, designers refer to existing models at home and abroad to conduct variant design of products based on experience, determine the initial value of each parameter value, use theoretical methods to theoretically analyze the movement process and force conditions, etc., and manufacture The prototype is tested, and once the design does not meet the requirements, it is necessary to go back to the first step for modification. This design method has many repetitions, heavy workload, error-prone calculations, backward methods, and long cycles. Data is lost, and a lot of design experience is lost. This traditional design method is difficult to quickly realize the rapid change design of mechanical products.

Contents of the invention

The technical problem to be solved by the invention is to overcome the shortcomings of the existing variant design method, and provide a design and development method of a mechanical product variant optimization system. Using this design and development method, it is possible to design and develop a system that can quickly realize the optimization design of mechanical product variants. This system solidifies design experience in three categories: design experience, product structure, and optimization scheme. Using this system for mechanical product variant design has a short period of time. , Low development cost and other advantages.

The technical solution of the present invention is: through the four steps of object research, establishment of virtual prototype model, optimization design analysis and verification, and establishment of automation system, the development can realize preliminary size deformation calculation, performance optimization calculation and parameter modification simulation analysis of mechanical products. and the mechanical product variant optimization system output by the design plan report, the specific steps are as follows:

(1) Conduct research on the mechanical products that need to develop variant optimization systems, understand their functional requirements by consulting literature, field investigations, etc., realize the structure, performance indicators and structural parameters of the functions, and organize and summarize the design experience of the mechanical products ;

(2) Establish the virtual prototype of the mechanical product that needs to develop the variant optimization system, extract the simplified model of the mechanism that realizes the function, establish its three-dimensional geometric model in the optimization analysis software, add the corresponding constraint relationship and motion conditions, and use the virtual prototype to parameterize Model technology parametrizes the model;

(3) Conduct optimized design analysis and verification on the established virtual prototype, conduct research on the performance indicators of the mechanical products that need to be developed for the variant optimization system through theoretical analysis, actual investigation and other methods, and determine the most important performance indicators and their optimal values And set it as the optimization goal of the optimization calculation, determine the secondary performance and its value as the constraint condition, study the influence of the parameters on the performance through the parametric analysis function of the analysis software, select the parameter with a large influence as the optimization variable, and use the theory of the optimization algorithm Compare and optimize the test results of the product in the analysis software to select the appropriate optimization algorithm to determine the best optimization plan;

(4) Establish a deformation optimization automation system, summarize the results based on design experience, use object-oriented development tools, and develop size deformation calculation modules; according to the virtual prototype model and optimization scheme, use the development tools and object-oriented development tools that come with the analysis software Develop a performance optimization module; establish a human-computer interaction parameter modification simulation analysis module through object-oriented development tools and analysis software's own development tools and data storage and transfer solutions; use object-oriented tools and text editing software VBA, Develop and design report output module.

The system developed by using the method of the present invention is composed of four major modules: the dimension variation calculation module, which automatically calculates the dimension variation according to the functional requirements and design experience; Optimized size variant design scheme; parameter modification simulation analysis module, which can further modify the optimization scheme obtained by optimization calculation to meet more individual needs; design report output module, output design details and performance of the optimized and modified design scheme analysis report.

The present invention summarizes the design experience through object research, solidifies these experiences into the software through the calculation program of the dimension deformation calculation module; solidifies the product structure information into the software through the establishment of the virtual prototype model; through the optimization program of the performance optimization module Solidify the optimization scheme into the software. Through the solidification of design experience, structural information, and optimization schemes in the software, and the use of object-oriented development technology, analysis software's own development tools, text editing software VBA, and data storage and transfer solutions to establish an automated system, to achieve Design and development of mechanical product variant optimization system.

The beneficial effect of the present invention compared with prior art is:

(1) The present invention proposes a design and development method for a mechanical product variant optimization system, which fills the gap in the research on the variant design system development method.

(2) The mechanical product variant optimization system developed by the method proposed by the present invention can realize preliminary calculation of product size variant, realize optimization calculation of variant design scheme, realize further design modification and simulation analysis of variant design scheme, and output final variant design The scheme report avoids the waste of design resources caused by human calculation errors, and realizes product variant design quickly and efficiently.

(3) The mechanical product variation optimization system developed by the method proposed by the present invention solidifies product design experience, product structure information and product optimization scheme into the software, helps designers to realize rapid variation design, and prevents loss of design data due to personnel transfer The loss of design data and experience caused by it.

Description of drawings

Fig. 1 is a flow chart of the design and development method of the mechanical product variant optimization system of the present invention.

Fig. 2 is a system structure diagram of the design and development method development of the mechanical product variant optimization system of the present invention.

Detailed ways

As shown in Figure 1, the design and development method of the mechanical product variant optimization system described in the present invention has four steps: object research, virtual prototype model establishment, optimization design analysis and verification, and automation system establishment.

The object research includes understanding the functional requirements of the mechanical product of the development of the variant optimization system, the structure of the function, performance indicators and structural parameters through literature review, field investigation and other methods, and sorting out the design experience of the mechanical product.

The establishment of the virtual prototype model includes extracting the simplified model of the mechanism that realizes the function, establishing its three-dimensional geometric model in the optimization analysis software, adding the corresponding constraint relationship and motion conditions, and parametrizing the model by using the virtual prototype parametric model technology.

The optimization design analysis and verification of the virtual prototype includes theoretical analysis, actual investigation and other methods to conduct research on the performance indicators of the mechanical products required to develop the variant optimization system, determine the most important performance indicators and their optimal values, and designate them as optimization calculations The optimization objective, determine the secondary performance and its value as the constraint condition, study the influence of parameters on the performance through the parametric analysis function of the analysis software, select the parameter with a large influence as the optimization variable, and compare the optimization algorithm theory with the analysis software Select the appropriate optimization algorithm based on the test results of the optimization calculation of the product in the process to determine the best optimization plan.

Establish a deformation optimization automation system, summarize the results based on design experience, use object-oriented development tools, and develop a dimension deformation calculation module; according to the virtual prototype model and optimization scheme, use the development tools that come with the analysis software and object-oriented development tools to develop performance optimization module; use the object-oriented development tools and the development tools that come with the analysis software and the data storage and transfer solution between the two to establish a parameter modification simulation analysis module for human-computer interaction; use object-oriented tools and text editing software VBA to develop design reports output module.

As shown in Figure 2, the system developed by the design and development method of the mechanical product variant optimization system according to the present invention is composed of four major modules: the dimension variant calculation module, which automatically performs dimension variant calculation according to functional requirements and design experience; the performance optimization calculation module According to the optimization scheme, the data calculated by the previous module is optimized and calculated to obtain a performance-optimized size variation design scheme; the parameter modification simulation analysis module can further modify the optimization scheme obtained by the optimization calculation to meet more individual needs; design report The output module outputs the design details and performance analysis report of the optimized and modified design scheme.

As shown in Figure 2, the system developed by the design and development method of the mechanical product variant optimization system according to the present invention solidifies design experience, product structure information, and optimization schemes in the system. Summarize the design experience through object research, solidify these experiences into the software through the calculation program of the dimension deformation calculation module; solidify the product structure information into the software through the establishment of the virtual prototype model; solidify the optimization scheme through the program of the performance optimization module into the software. Through the solidification of design experience, structural information, and optimization schemes in the software, and the use of object-oriented development technology, analysis software's own development tools, text editing software VBA, and data storage and transfer solutions to establish an automated system, to achieve Design and development of mechanical product variant optimization system.

Claims (3)

1. The design and development method of the mechanical product variant optimization system, characterized in that: the method is applied to the development of the mechanical product variant optimization system, the system developed by this method can realize the preliminary size variant calculation of the mechanical product, and the performance can be obtained through the optimal design calculation The result of optimized mechanical product variant design, this method includes four steps: object research, virtual prototype model establishment, optimization design analysis and verification, and automation system establishment. The specific steps are as follows: (1) Conduct research on the mechanical products that need to develop variant optimization systems, understand their functional requirements by consulting literature, field investigations, etc., realize the structure, performance indicators and structural parameters of the functions, and organize and summarize the design experience of the mechanical products ; (2) Establish the virtual prototype of the mechanical product that needs to develop the variant optimization system, extract the simplified model of the mechanism that realizes the function, establish its three-dimensional geometric model in the optimization analysis software, add the corresponding constraint relationship and motion conditions, and use the virtual prototype to parameterize Model technology parametrizes the model; (3) Conduct optimized design analysis and verification on the established virtual prototype, conduct research on the performance indicators of the mechanical products that need to be developed for the variant optimization system through theoretical analysis, actual investigation and other methods, and determine the most important performance indicators and their optimal values And set it as the optimization goal of the optimization calculation, determine the secondary performance and its value as the constraint condition, study the influence of the parameters on the performance through the parametric analysis function of the analysis software, select the parameter with a large influence as the optimization variable, and use the theory of the optimization algorithm Compare and optimize the test results of the product in the analysis software to select the appropriate optimization algorithm to determine the best optimization plan; (4) Establish a deformation optimization automation system, summarize the results based on design experience, use object-oriented development tools, and develop size deformation calculation modules; according to the virtual prototype model and optimization scheme, use the development tools and object-oriented development tools that come with the analysis software Develop a performance optimization module; establish a human-computer interaction parameter modification simulation analysis module through object-oriented development tools and analysis software's own development tools and data storage and transfer solutions; use object-oriented tools and text editing software VBA, Develop and design report output module. 2. The design and development method of the mechanical product variant optimization system according to claim 1, characterized in that: the system developed by this method is composed of four major modules: the dimension variant calculation module, which automatically performs dimension variant according to functional requirements and design experience Calculation; performance optimization calculation module, which optimizes and calculates the data calculated by the previous modules according to the optimization scheme, and obtains a performance-optimized size variation design scheme; parameter modification simulation analysis module, which can further modify the optimization scheme obtained by the optimization calculation to meet more requirements. individual needs; the design report output module outputs the design details and performance analysis report of the optimized and modified design scheme. 3. The design and development method of mechanical product variation optimization system according to claim 1, characterized in that: the method summarizes the design experience through object research, and solidifies these experiences into the software through the calculation program of the dimension variation calculation module middle; solidify the product structure information into the software through the establishment of the virtual prototype model; solidify the optimization scheme into the software through the optimization program of the performance optimization module; solidify and use the design experience, structural information and optimization scheme in the software Object-oriented development technology, analysis software with development tools, text editing software VBA and data storage and transfer solutions and other development tools and technologies establish automation systems to realize the design and development of mechanical product variant optimization systems.

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