A simulation study of CONWIP assembly with multi-loop in mass production,multi-products and low volume and OKP environments |
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| Authors: | Guodong Huang Jie Chen Xiuli Wang Yiqun Shi |
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| Affiliation: | 1. School of Economics &2. Management, Nanjing University of Science &3. Technology, Nanjing, P. R. Chinahgdtonee@hotmail.com;5. Technology, Nanjing, P. R. China;6. Foreign Language Department, Suqian College, Jiangsu, P.R. China |
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| Abstract: | This paper studies the performance of constant work-in-process (CONWIP) assembly system with multi-loop in mass production, multi-products and low volume and one-of-a-kind production (OKP) environments using simulation. We propose five basic design patterns of CONWIP loop and develop eight control policies of CONWIP loop based on the design pattern for standard assembly system. The performance of developed loop policies is evaluated in three production environments. In particular, control policies of CONWIP loop in OKP environment provide a valuable reference for OKP shop floor controlling. A heuristic algorithm of searching work-in-process (WIP) upper bound, the deadlock phenomenon in CONWIP assembly system and suggestion are introduced specifically. The summary of CONWIP installation guidelines in the mixed assembly system can apply CONWIP theory to practise. |
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| Keywords: | simulation CONWIP assembly production control WIP OKP |
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