상수 공정시간을 갖는 라인 생산 시스템에서 CONWIP과 간반의 성능 비교

Comparison of CONWIP with Kanban in a Production Line with Constant Processing Times

  • 이호창 (경희대학교 경영대학 경영학부, 경영연구원) ;
  • 서동원 (경희대학교 경영대학 경영학부, 경영연구원)
  • 투고 : 2010.12.17
  • 심사 : 2011.05.17
  • 발행 : 2011.06.30

초록

We compared a CONWIP(constant work-in-process) system with a kanban system in a production line with constant processing times. Based on the observation that a WIP-controlled line production system such as CONWIP and kanban is equivalent to a m-node tandem queue with finite buffer, we applied a max-plus algebra based solution method for the tandem queue to evaluate the performance of two systems. Numerical examples with 6 workstations were used to demonstrate the proposed analysis. The numerical results support the previous studies that CONWIP outperforms kanban in terms of expected waiting time and WIP. Unlike the kanban case, sequencing workstations in a CONWIP does not affect the performance of the system.

키워드

참고문헌

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