Plasticity forming technique regulation obtaining method based on simulation and fuzzy coarse central algorithm

A fuzzy rough set, plastic forming technology, applied in the direction of instruments, adaptive control, control/regulation systems, etc., can solve the problems of insufficient development and utilization of result data, difficulty in obtaining process rules, etc. Effect
CN1652050AInactive Publication Date: 2005-08-10SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2005-08-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a method for obtaining plastic forming process rule based on simulation and fuzzy rough set algorithm. Said method includes the following steps: firstly, creating numerical simulation model, selecting conditional attribute set from process condition parameters, defining decision attribute set for evaluating forming property, then making numerical simulation test design, utilizing simulation test to obtain plastic forming process information source, making numerical simulation result data undergo the process of fuzzy discretization pretreatment to form fuzzy decision table, and finally utilizing rough set theory and adopting a series of steps of classification, calculation and rule description, etc so as to obtain the invented new process rule.
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Description

Technical field

[0001] The invention relates to a method for obtaining plastic forming process rules based on numerical simulation and fuzzy-rough set (Fuzzy Rough Set) algorithm, which is used for mining potential process rules from plastic forming numerical simulation results, and belongs to the technical field of knowledge engineering of plastic processing . Background technique

[0002] Process rules are very important to guide the process design of plastic processing, and are the basis for establishing a plastic processing expert system or other intelligent plastic forming process design systems. At present, the plastic forming process rules are mainly obtained through the existing process design manuals and the inheritance of domain experts. However, the original process design manual cannot adapt to the ever-changing product structure update; inheriting the experience of domain experts requires good cooperation and hard work of knowledge engineers and domain experts, and t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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