【摘要】 粗糙集是一种较新的处理不完整性知识和不确定性知识的数学工具,而并行公差设计方法是通过尽早考虑相关环节对上游公差设计环节的制约,减小了决策的不定性,实现了公差设计结果的早期验证。通过对粗糙集理论和计算机辅助并行公差设计的一般流程进行简单描述。在对螺旋导套零件建立加工工艺数据库的实际应用问题上,论述了粗糙集理论在计算机辅助并行公差设计中的应用,从而得到了约简的专家系统数据库,为计算机辅助公差设计进一步完善提供了有价值的基础设计理论。更多还原

【Abstract】 Rough-set theory is the later mathematical tool in dealing with incomplete and uncertainty problem,and concurrent tolerance design method by considering related links as soon as the upper tolerance design link,reducing the uncertainty of decision-making,realizing the early verification of tolerance design results.Rough-set theory and concurrent tolerance design are introduced,and the theory is mainly discussed based on rough-set theory in computer aided concurrent tolerance design.Though the application of rough set theory to expert system database,it provides gets valuable the perfect basic theory for the tolerance design.更多还原