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Modeling and Simulation Analysis of the Setup Reduction Method in Automobile Painting Process

자동차 도장 공정의 셋업 감소 방법 모델링 및 시뮬레이션 분석

  • 한용희 (삼성전자 Device Solution 부문)
  • Received : 2009.08.16
  • Accepted : 2009.09.09
  • Published : 2009.09.30

Abstract

In this study we investigate the problem of reducing color change cost at painting operations in an automobile assembly plant. Changing control logic at conveyor junction points prior to the top coat line has been proposed and analyzed using the discrete event simulation model we developed using AutoMod. We also discussed the project which initiated this research as well as the details of painting operations. Simulation analysis showed that the grouping ratio increases from 1.8 to 2.5 if the proposed control logic change is applied to the plant. Contrary to other approaches such as using dedicated equipment for resequencing, our approach has the merit of less investment cost, no need for additional space consumption. We finally note that the grouping ratio can be further increased if our algorithms is implemented as well as CRS (Color Rescheduling Storage) is installed.

본 연구에서는 자동차 도장 공장의 가장 큰 낭비 요소인 상도 공정의 세정 비용의 절감 및 환경 보호를 목적으로 상도 공정 이전의 각 컨베이어 연결점에서의 운영 알고리즘 변경시의 셋업 감소 효과를 시뮬레이션 모델링을 통해 분석하였다. 또한 본 연구의 동기가 된 도장 공정에서의 세정 비용 최소화 프로젝트 및 도장 공장 현황에 대해 설명하였다. 시뮬레이션 결과 컨베이어 연결점에서의 운영 알고리즘 개선시 현재 1.8대의 그룹화 효율을 2.5대 수준으로 향상시킬 수 있음을 알 수 있었다. 본 연구에서 적용한 접근법을 사용할 경우 그룹화 효율 향상에 별도 설비 투자가 필요 없고, CRS(Color Rescheduling Storage) 설치와 병행 적용하여 그룹화 효율을 더욱 향상시킬 수 있는 이점을 가지고 있다.

Keywords

References

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