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发明公开
CN1652050A 基于仿真与模糊粗糙集算法的塑性成形工艺规则获取方法 无效 - 撤回

基于仿真与模糊粗糙集算法的塑性成形工艺规则获取方法
摘要：
一种基于仿真与模糊粗糙集算法的塑性成形工艺规则获取方法，首先建立数值仿真模型，从工艺条件参数中选取条件属性集合、确定评价成形性能的决策属性集合后，进行数值模拟试验设计，通过仿真试验得到塑性成形工艺信息源，对数值仿真结果数据进行模糊离散化预处理形成模糊决策表。基于粗糙集理论，以模糊等价概念对属性集合进行归类得到概念集合，计算决策属性关于条件属性的模糊下粗集，从中归纳得到确定性规则，再通过规则描述、设定规则可靠度阀值以及值约简的方法进一步约简后，最终获得新的工艺规则。采用本发明方法可以扩展塑性成形领域知识来源，提高塑性成形仿真结果数据的利用价值，将数值模拟从设计验证层次上升至设计驱动层次。
摘要（英）：

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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