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在并行工程产品开发过程中 ,往往按照问题的结构特点将较大规模的问题分解成一些子问题 ,并希望通过求解子问题来获得原问题的解 .实际中 ,分解得到的子问题之间往往不是完全独立的 ,一般的简单分解方法只能有限地降低求解难度和简化问题规模 .如何进一步分解各个子问题间的关系 ,使各个子问题的设计结果不但满足原问题的总体要求而且还能由此获得优化的总体设计结果是一个重要问题 .该文给出了分解的意义 ,提出了基于约束的优化分解方法 .
In the process of concurrent engineering product development, the large-scale problems are often decomposed into some sub-problems according to the structural features of the problem and hope to obtain the solution of the original problem by solving the sub-problems.In practice, the sub-problems are often decomposed Is not completely independent, and the general simple decomposition method can only reduce the difficulty of solving and the scale of the problem limitedly.How to further decompose the relationship between the sub-problems so that the design results of each sub-problem not only meet the overall requirements of the original problem but also This is an important issue for obtaining the optimized overall design results.This paper gives the meaning of decomposition and proposes a constraint-based method for optimal decomposition.