다품종 제품과 전용 대기공간을 고려한 다단계 베르누이 라인을 위한 성능 모델

• 영문명: Performance Models of Multi-stage Bernoulli Lines with Multiple Product and Dedicated Buffers
• 발행기관: 한국산업경영시스템학회
• 저자명: 박경수(Kyungsu Park) 한준희(Jun-Hee Han) 김우성(Woo-Sung Kim)
• 간행물 정보: 『산업경영시스템학회지』제44권 제3호, 22~32쪽, 전체 11쪽
• 주제분류: 공학 > 산업공학
• 파일형태: PDF
• 발행일자: 2021.09.30

영문 초록

To meet rapidly changing market demands, manufacturers strive to increase both of productivity and diversity at the same time. As a part of those effort, they are applying flexible manufacturing systems that produce multiple types and/or options of products at a single production line. This paper studies such flexible manufacturing system with multiple types of products, multiple Bernoulli reliability machines and dedicated buffers between them for each of product types. As one of the prevalent control policies, priority based policy is applied at each machines to select the product to be processed. To analyze such system and its performance measures exactly, Markov chain models are applied. Because it is too complex to define all relative transient and its probabilities for each state, an algorithm to update transient state probability are introduced. Based on the steady state probability, some performance measures such as production rate, WIP-based measures, blocking probability and starvation probability are derived. Some system properties are also addressed. There is a property of non-conservation of flow, which means the product ratio at the input flow is not conserved at the succeeding flows. In addition, it is also found that increased buffer capacity does not guarantee improved production rate in this system.

목차

1. 서론

2. 선행 연구

3. 문제정의 및 가정

4. 마코프 체인(Markov Chain)을 통한 분석

5. 수치 예제 및 시스템의 특성

6. 결론

키워드

Bernoulli Machine Multiple Products Production Rate Scheduling Policy Dedicated Buffer Flexible Manufacturing