基于决策规则对象Petri网的机械产品协同设计过程动态建模

Dynamic Modeling for Mechanical Product Collaborative Design Process Based on OPN and Decision Rules

提出了一种基于决策规则的机械产品协同设计全过程动态建模方法。在定义了基于决策规则的协同设计过程OPN模型的基础上,将机械产品的设计过程描述为具有多个输入输出调用接口的设计单元模型,然后将设计单元的输入输出接口与协同设计过程的评审决策变迁绑定,构建了一种协同设计全过程控制模型。该模型通过决策变迁信息库所中的决策信息,动态地确定协同设计过程的执行流向。最后,以链式输送机驱动机构的协同设计建模实例验证了该方法的有效性。

A dynamic modeling method for mechanical product collaborative design process was proposed herein to solve dynamic modeling problem,where decision rule information and decision transition were introduced.Firstly,mechanical design process was described as multi-design-unit model based on collaborative design process and model of OPN was denoted based on decision rules.These models have invoking interface for input and output.Then the design unit interface for input and output was bound down judging decision transitions for collaborative design process and a control net model of whole collaborative design process was built.This model can confirm the implementing flow of collaborative design process in dynamic manner using decision information stored in decision transition information database.Finally,a collaborative design modeling example of chain-transportation-driven equipment was presented,which shows efficient of this method.