关键词: 多阶段制造系统, 状态空间模型, 产品质量

Abstract: Current deviation theory only resolves single deviation flow problem in serial manufacturing system. To control multiple streams of variations in Serial-Parallel Hybrid Multi-Stage Manufacturing Systems (SPHMSMS), based on existing study achievements, the part model and part deviation were defined. Control theory and engineering knowledge analysis were applied to construct state space model. System matrix was also proposed. The Stream of Variation (SoV) theory was extended to SPHMSMS, and the problem of multiple streams of variation affecting product quality was solved. The dimensions of the state space model were accordingly reduced to the practical level by using the method of reducing system model dimensions. The result of a machining case showed that the proposed model was effective and feasible.

Key words: multi-stage manufacturing system, state space model, product quality