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비용요소를 고려한 자동차 차체조립라인의 설계 최적화

Optimizing Design Problem in an Automotive Body Assembly Line Considering Cost Factors

  • 투고 : 2020.10.24
  • 심사 : 2020.12.21
  • 발행 : 2020.12.31

초록

이 논문에서는 자동차 차체 조립라인과 같은 제조시스템을 설계할 때, 설비투자비용과 같은 다양한 비용요소를 고려하여 최적 배치안을 결정하는 문제를 다룬다. 시스템의 성능 평가에 필요한 생산율 재공품 재고 수준을 추정하기 위해서는 시뮬레이션 실험 결과를 기반으로 하는 메타모델 방법론을 사용하였다. 최적화 문제의 목적함수는 목표생산율을 만족시키는 최소비용으로 정하였는데, 비용요소로는 로봇, 버퍼, 운송장비에 대한 투자비용을 고려하였고, 운영비용으로는 재공품 재고비용을 포함시켰다. 최적화 문제를 풀기 위해서는 하모니 탐색방법론을 사용하였다.

In this paper, an optimal manufacturing system design problem in an automotive body assembly lines is introduced when various costs such as equipment investment costs are considered. Meta-model methodology based on simulation results has been used for estimating the performances of the system such as production rate and work-in-process levels. The objective function is minimizing total cost which satisfies the target production rate. The investment costs such as robots, buffers, transportation equipment, and the inventory holding cost of work-in-process have been included in the objective function. Harmony search method has been used for optimization.

키워드

참고문헌

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