• 제목/요약/키워드: just-in-time production system

검색결과 84건 처리시간 0.031초

생산평준화에 관한 연구 (I) (A study on the smothed production (I))

  • 김학철;강경식;박상민
    • 산업경영시스템학회지
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    • 제18권36호
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    • pp.219-232
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    • 1995
  • Even though Just-In-Time Production System is introduced to industry in order to strengthen competition, applying this production system to field is hard and some problems are occurred. On this study, the algorithm which become smoothed production, one of the prerequisite condition for implementing Just-In-Time, are developed. On the other word. it is possible to become smoothed production based on keeping Lot Production System. The possibility of establishing more stable smoothed production scheduling are proved on this study by comparing with previous researches.

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생산정보를 이용한 자동차 조립 서열시스템에 관한 연구 (Automobile Assembly Sequence System Using Production Information)

  • 옥영석;김병수;배준희
    • 산업경영시스템학회지
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    • 제37권3호
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    • pp.8-15
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    • 2014
  • For zero inventory and mixed assembly production, JIT (Just In Time) production system in Toyota and JIS (Just-In-Sequence) production system in Hyundai motor co. have been proposed in automobile production areas. Even though the production systems are popular in the areas, many subcontract companies producing part-modules for final production at a parent company suffers from excessive or shortage amount of inventory due to the time gap of production and delivery to the parent company. In this study, we propose an efficient real-time assembly sequence system applying a well-known Pareto method using Paint-In information in painting process and daily production planning information. Based on this system, a production line can estimate the shortage amount of UPH (Units Per Hour) at production line and recovers the amount before operating assembly production in the line. The proposed system provides efficiency on productivity compared with the previous system.

프리캐스트 콘크리트 부재의 현장생산용 증기 양생 방법 개발 연구 (Study on Development of Steam Curing Method for In-situ production of Precast Concrete members)

  • 성수진;임채연;김선국
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2014년도 추계 학술논문 발표대회
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    • pp.71-72
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    • 2014
  • Green Frame is a building frame system to construct a column-beam structure using composite precast concrete members. To reduce the cost of producing precast concrete, in-situ production of members is required. However, when the structural members are produced on site, it needs a large space for production. So, "Just-In-Time" production method should be adopted. For Just-In-Time to be realized, the early strength of members should be ensured for them to be transported. Thus, steam curing to secure the early strength is applied in Green Frame. Yet, a large-scale steam curing system is not possible for in-situ production of precast concrete. A smaller steam curing system is needed. In this regard, the study is aimed to develop a new steam curing method applicable to the in-situ production of precast concrete.

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적시생산 관리시스템에 관한 연구 - 철근공사를 중심으로 - (A Study on Prototype of Just In Time Production Management System)

  • 이규현;최인성
    • 한국건축시공학회지
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    • 제5권4호
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    • pp.153-164
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    • 2005
  • This study aims at establishing JIT production management system to enable manage the resources input into from procurement through construction based on correct identification of the process, an analysis on the amount of input materials and information sharing. This study has focused on the process control and working process of rebar work in domestic apartment house construction where the overall scope of Process from the planning phase to the construction phase has been analyzed in this study. Also construction phase was selected for the application of a sample case. A basic model for JIT production was generated with these processes. Furthermore A questionnaire and the on-site survey with process, checklist and control data were prepared and performed for the application of JIT production management model into rebar work. The governing scopes of JIT production management system include process management, material management, yard loading and moving management and inventory control, and the operation of each control item

TPS에 의한 가전제품의 생산라인 자동화 구축 (Study on Automatic Production Line for Home Appliance Goods Based on Toyota Production System)

  • 최성대;정선환;유종규
    • 한국산업융합학회 논문집
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    • 제12권2호
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    • pp.85-90
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    • 2009
  • The Toyota production system (TPS) developed by Toyota corporation is a management principle and production model to improve values added through elimination of waste. Since the oil shock in 1970s, the TPS has drawn the worldwide attentions as a main factor of competitiveness of Japanese manufacturing system and has been studied and implemented in many countries regardless of size and types of industry. For the correspondence to various customer's requirement, it is required to establish on time delivery procedure and to shorten lead time. Therefore it intended to establish TPS which is adopted to 7 losses reduction and JIT(Just in Time). In this paper, the automatic production line for color TV manufacturing by TPS was developed and proved to push up two times of productivity, to reduce the 25 workers at a time, and to widen the flexibility of manufacturing from 14" to 25" TV.

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적시 생산 방식에서의 주조공정 스케줄링 (Scheduling of a Casting Sequence Under Just-In-Time (JIT) Production)

  • 박용국;양정민
    • 산업경영시스템학회지
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    • 제32권3호
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    • pp.40-48
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    • 2009
  • In this article, scheduling of a casting sequence is studied in a casting foundry which must deliver products according to the Just-in-time(JIT) production policy of a customer. When a foundry manufactures a variety of casts with an identical alloy simultaneously, it frequently faces the task of production scheduling. An optimal casting schedule should be emphasized in order to maximize the production rate and raw material efficiency under the constraints of limited resources; melting furnaces and operation time for a casting machine. To solve this practical problem-fulfilling the objectives of casting the assigned mixed orders for the highest raw material efficiency in a way specified by the customer's JIT schedule, we implement simple integer programming. A simulation to solve a real production problem in a typical casting plant proves that the proposed method provides a feasible solution with a high accuracy for a complex, multi-variable and multi-constraint optimization problem. Employing this simple methodology, a casting foundry having an automated casting machine can produce a mixed order of casts with a maximum furnace utilization within the due date, and provide them according to their customer's JIT inventory policy.

도요타 생산방식(TPS)의 이론과 실제 (A Theoretical Study on the Toyota Production System and Practical Example)

  • 임재화;목진환
    • 한국산학경영학회:학술대회논문집
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    • 한국산학경영학회 2006년도 춘계학술발표대회 발표논문집
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    • pp.171-190
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    • 2006
  • 도요타 자동차는 2005년도 결산 보고서에서 영업이익은 6년 연속, 순이익은 4년 연속 사상 최고치를 경신한 것으로 나타났다. 순이익은 전년도 보다 11% 증가한 1조 3000억 엔(약 11조 500억 원)에 달하는 것으로 보고 있다. 최고의 이익을 계속 갱신하면서 세계의 주목을 받고 있는 도요타 자동차는 낭비제거와 개선(改善)을 골자로 하는 생산방식의 강점을 보유하고 있다. 도요타 생산방식의 기본 사상은 낭비를 철저히 제거하여 생산성을 향상시킴으로 부가가치를 통한 이익을 창출하는 것으로, 이를 뒷받침 해주는 것이 "Just-in time" 과 " 사람 인(人)변의 자동화(自動化)라는 두 가지 기둥이다. 최근 한국의 제조기업 뿐만 아니라 서비스업종까지 도요타 생산 시스템을 재조명하여 자사에 적용하기 위한 많은 시도가 이어지고 있다. 도요타 생산방식의 이론의 고찰을 통하여 도요타 생산방식을 재정립하고, 실제로 도요타 생산방식이 적용되어진 사례연구를 통하여 우리의 기업환경에 적합하도록 활용할 수 있는지를 검토하고 연구 발전시켜야 한다.

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합성수지 생산공정의 JIT 생산 시스템 도입에 대한 실증적 연구 (An Empirical Study on JIT Production System's Implementation in a Synthetic Resins Manufacturing Process)

  • 임치환
    • 산업경영시스템학회지
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    • 제25권4호
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    • pp.69-78
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    • 2002
  • The basic purpose of the JIT(Just In Time) production system is to increase profits by reducing costs-that is, by completely eliminating waste such as excessive stocks or workforce. To achieve cost reduction, Production must promptly and flexibly adapt to changes in market demand without having wasteful slacks. :iuch an ideal is accomplished by the concept of JIT, producing the necessary items in the necessary quantities at the necessary time. The JIT production system is supported by the following: reduction of setup time, smoothing of production, standardization of jobs, improvement activities, design of machine layout, Kanban system, autonomation etc. This study examined the present state of the domestic JIT production system and introduced the empirical case of JIT application a small and medium manufacturing company. A synthetic resins manufacturing company applied JIT principles to its processes and achieved the great performance.

중소기업을 위한 생산정보시스템의 개발

  • 정병호;소영섭;허은영;이해영;조영호;김정수
    • 한국경영과학회:학술대회논문집
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    • 대한산업공학회/한국경영과학회 1996년도 춘계공동학술대회논문집; 공군사관학교, 청주; 26-27 Apr. 1996
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    • pp.190-193
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    • 1996
  • In recent, most of automobile industries adopt the concept of Just In Time production. The paternal manufacturers require their suppliers to supply parts just in time. It is very important for a subcontractor to produce the parts in the appointed time of delivery. This study develops a production information system for Woosin Industry, which is one of such subcontractor of Hundai Motors Company(HNC). The system is developed on Client/Server system. Firstly, three modules are developed, i.e., scheduling module to make a schedule, the subsystem of sales management to deal with the information about order of HMC, delivery of parts, and bill collecting, and the module for supporting material requirement planning and purchace of material.

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SCM에서의 효율적인 혼입방지시스템에 대한 연구 (A Study on the Prevention System of Mixed Assembly Under the Part of Supply Chain Management using Uncommon BOM)

  • 강민식;김재련
    • 산업경영시스템학회지
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    • 제24권69호
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    • pp.13-22
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    • 2001
  • The efficient quality assurance system to prevent mixed assembly in introduced in this paper, It supports JIT(Just-In-Time) based Kanban and demand pull system. A new system is designed for the synchronized production and quality assurance using barcode and production kanban card, And the performance improvement method for the stable and fast response of the proposed system is suggested in this paper also. As the result of the proposed system, we improved production status visibility and quality traceability.

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