서지주요정보
Wagner-whitin 알고리즘의 MRP 에의 응용-사례연구 = The application of wagner-whitin lot sizing technique to material requierment planning -case study
서명 / 저자 Wagner-whitin 알고리즘의 MRP 에의 응용-사례연구 = The application of wagner-whitin lot sizing technique to material requierment planning -case study / 류완수.
저자명 류완수 ; Ryu, Wan-Soo
발행사항 [서울 : 한국과학기술원, 1980].
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등록번호

4000997

소장위치/청구기호

학술문화관(문화관) 보존서고

MPE 8016

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초록정보

This study is concerned with the application and extension of Wagner-Whitin lot sizing technique to multistage manufacturing planning known as Material Requirement Planning(MRP). A modification of Wagner-Whitin algorithm is attempted to improve its application potential in MRP. The inherent weakness of Wagner-Whitin algorithm(when applied to MRP framework) is that the inventory level in the last period of the planning horizon is zero. By extending the planning horizon by the lead time of each item, we redefine the planning horizon to which the algorithm is applied, and we can keep the appropriate inventory level in the last period of the original planning horizon. That inventory covers the possible future demands arrising in the forecasting horizon. The future demands in the additional horizon are forecast by known forecasting techniques according to demand patterns. The another part of this thesis is concerned with the relationship between the lot size and capacity limitation. A heuristic algorithm is developed to levelize the over-capacity lot size down to the feasible region. The criteria of the leveling algorithm is characterized by the setup cost and inventory holding cost. A basic assumption made in developing this algorithm is that the net requirements for each item do not exceed the production capacity of each production level. To appreciate the results of this study, a case study is performed for a typical automobile engine shop. The total system cost resulted from the application of Wagner-Whitin algorithm is cpmpared with that of "lot for lot". Lastly, the cost increase caused by the capacity limitation is examined.

서지기타정보

서지기타정보
청구기호 {MPE 8016
형태사항 [ii], 82 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : 1, Lot sizing의 종류. - 2, 수요예측의 기법. - 3, The MRP program algorithm
저자명의 영문표기 : Wan-Soo Ryu
지도교수의 한글표기 : 안병훈
지도교수의 영문표기 : Byung-Hun Ahn
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 71-72
주제 Economic lot size.
Heuristic programming.
Production planning.
MRP. --과학기술용어시소러스
생산 관리. --과학기술용어시소러스
로트 생산. --과학기술용어시소러스
발견적 방법. --과학기술용어시소러스
생산 계획. --과학기술용어시소러스
Manufacturing resource planning.
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