Abstract: A multi-change propagation paths parallel search method was proposed for the issue that single change propagation paths search method was not applicable to multiple changes.Based on the constructed component network model,the change risk index was proposed as an important index of path optimization.According to the interference characteristics of multi-change propagation paths,three basic propagation forms of serializing,splitting and merging were divided and the calculation method of change impact value was established.On this basis,a parallel search model was proposed for multiple changes consisting of a downlink change propagation paths search algorithm and a constraint change propagation paths search algorithm.An example was used to verify the validity and feasibility of the proposed method.

Key words: parallel search, multi-change propagation paths, component network model, design change, product development

摘要： 针对单变更传播路径搜索方法面向多变更的不适用问题,提出多变更传播路径并行搜索方法。首先,基于构建的零部件网络模型,提出变更风险指数,作为路径优化的重要指标;其次,依据多变更传播路径的干涉特征,划分串行、分裂、合并3种基本传播形式,提出变更影响求解方法;基于此,提出下行变更传播路径搜索算法、约束变更传播路径搜索算法两部分组成的多变更传播路径并行搜索模型。最后,通过实例验证了所提方法的有效性和可行性。

关键词: 并行搜索, 多变更传播路径, 零部件网络模型, 设计变更, 产品开发