Journal of Shanghai Jiaotong University ›› 2018, Vol. 52 ›› Issue (3): 324-331.doi: 10.16183/j.cnki.jsjtu.2018.03.011

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Quality Analysis of Multi-Stage Assembly Systems Based on Markov Model

SONG Tingting1,ZHAO Ziren1,DU Shichang1,REN Fei2,LIANG Xinguang2   

  1. 1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Shanghai Aerospace Manufacture Co., Ltd., Shanghai 200245, China
  • Online:2018-03-28 Published:2018-03-28

Abstract: In manufacturing systems, a product usually goes through a series of assembly stages before it is completely finished, making it of great significance to analyze the product quality in assembly systems. A Markov model is developed to evaluate the quality performance of assembly systems in this paper. The quality of a product is not only related to the state of the current stage, but also has something to do with the quality of coming parts from upstream stages. Quality propagation is taken into consideration along the assembly production line. Finally, a case of multi-stage assembly system of astronautical valve is used to validate the effectiveness of this Markov model.

Key words: multi-stage assembly, Markov model, assembly system, quality control

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