A double decoupling postponement approach for integrated mixed flow production systems

Kybernetes ◽  
2015 ◽  
Vol 44 (5) ◽  
pp. 705-720 ◽  
Author(s):  
Yanting Ni ◽  
Yi Wang
Keyword(s):  
Real Time ◽  
Production Planning ◽  
Production Systems ◽  
Shop Floor ◽  
Mixed Flow ◽  
Planning And Scheduling ◽  
Content Type ◽  
Production Planning And Scheduling ◽  
Work In Process

Purpose – In a mixed flow production environment, interactions between production planning and scheduling are critical for mixed flow distributed manufacturing management. The purpose of this paper is to assist manufacturers in achieving real-time ordering and obtaining integrated optimization of shop floor production planning and scheduling for mixed flow production systems. Design/methodology/approach – A double decoupling postponement (DDP) approach is presented for production dispatch control, and an integrated model is designed under an assemble to order (ATO) environment. To generate “optimal” lots to fulfil real-time customer requests, constant work in progress (CONWIP) and days of inventory dispatching algorithms are embedded into the proposed DDP model, which can deal with real-time ordering and dynamic scheduling simultaneously. Subsequently, a case study is conducted, and experiments are carried out to verify the presented method. Findings – The proposed DDP model is designed to upgrade a previous CONWIP method in the case study company, and the proposed model demonstrates better performance for the integration of production planning and scheduling in mixed flow manufacturing. As a result, the presented operation mechanism can reflect real-time ordering information to shop floor scheduling and obtain performance metrics in terms of reliability, availability and maintainability. Research limitations/implications – The presented model can be further proliferated to generic factory manufacturing with the proposed logic and architecture. Originality/value – The DDP model can integrate real-time customer orders and work in process information, upon which manufacturers can make correct decisions for dispatch strategies and order selection within an integrated system.

Special Issue on Production Planning and Scheduling

2015 ◽  
Vol 9 (3) ◽  
pp. 209-209 ◽  
Author(s):  
Nobuhiro Sugimura ◽  
Koji Iwamura ◽  
Tomohiko Maeda
Keyword(s):  
Production Planning ◽  
Production Management ◽  
Production Systems ◽  
Distributed Simulation ◽  
Resource Planning ◽  
Shop Floor ◽  
Special Issue ◽  
Planning And Scheduling ◽  
Processing Technologies ◽  
Production Planning And Scheduling

This issue focuses on production planning and scheduling for production system and the related problems that have arisen in these areas in the last half century as digital computer systems developed. These problems relate to production management, production planning, shop floor control, product design and process planning. In the first stage of production planning and scheduling systems R&D, optimization is a key issue that has been widely discussed and many theories and optimization algorithms proposed. Rule-based methods are discussed as potential solutions to these problems. With rapid advances in computer and information processing technologies and performance, tremendous progress has been made in the areas of production systems such as production planning, production scheduling, advances production systems (APS), enterprise resource planning (ERP), just-in time (JIT) processes, the theory of constraint (TOC), product data management (PDM) and computer-aided design / manufacturing / engineering (CAD/CAM/CAE). This special issue addresses the latest research advances, applications, and case studies in production planning and scheduling covering such as decentralized and autonomous production systems, distributed simulation models, robust capacity planning models, wireless sensor networks for production systems and applications to automotive component and steel production. We hope that learning about these advances will enable readers to share their own experience and knowledge in technology, new developments and the potential applications of production planning and scheduling methods and solutions.

An agent-based architecture for production scheduling in dynamic job-shop manufacturing system

2018 ◽  
Vol 66 (6) ◽  
pp. 492-502 ◽  
Author(s):  
Om Ji Shukla ◽  
Gunjan Soni ◽  
Rajesh Kumar ◽  
Sujil A
Keyword(s):  
Production Planning ◽  
Production Scheduling ◽  
Manufacturing System ◽  
Job Shop ◽  
Shop Floor ◽  
Efficient Production ◽  
Planning And Scheduling ◽  
Agent Based ◽  
Production Planning And Scheduling ◽  
Key Issues

Abstract In a highly competitive environment, effective production is one of the key issues which can be addressed by efficient production planning and scheduling in the manufacturing system. This paper develops an agent-based architecture which enables integration of production planning and scheduling. In addition, this architecture will facilitate real time production scheduling as well as provide a multi-agent system (MAS) platform on which multiple agents will interact to each other. A case study of job-shop manufacturing system (JMS) has been considered in this paper for implementing the concept of MAS. The modeling of JMS has been created in SimEvents which integrates an agent-based architecture developed by Stateflow to transform into dynamic JMS. Finally, the agent-based architecture is evaluated using utilization of each machine in the shop floor with respect to time.

Development of an integrated real time dispatching system

2014 ◽  
Vol 25 (7) ◽  
pp. 980-997 ◽  
Author(s):  
Yanting Ni ◽  
Yuchen Li ◽  
Jin Yao ◽  
Jingmin Li
Keyword(s):  
Real Time ◽  
Information Integration ◽  
Production Scheduling ◽  
Performance Metrics ◽  
Dynamic Scheduling ◽  
Shop Floor ◽  
Content Type ◽  
The Real ◽  
Work In Process ◽  
Dispatching Algorithm

Purpose – In a complex semiconductor manufacturing system (SMS) environment, the implementation of dynamic production scheduling and dispatching strategies is critical for SMS distributed collaborative manufacturing events to make quick and correct decisions. The purpose of this paper is to assist manufacturers in achieving the real time dispatching and obtaining integrated optimization for shop floor production scheduling. Design/methodology/approach – In this paper, an integrated model is designed under assemble to order environment and a framework of a real time dispatching (IRTD) system for production scheduling control is presented accordingly. Both of the scheduling and ordering performances are integrated into the days of inventory based dispatching algorithm, which can deal with the multiple indicators of dynamic scheduling and ordering in this system to generate the “optimal” dispatching policies. Subsequently, the platform of IRTD system is realized with four modules function embedded. Findings – The proposed IRTD system is designed to compare the previous constant work in process method in the experiment, which shows the better performance achievement of the IRTD system for shop floor production dynamic scheduling and order control. The presented framework and algorithm can facilitate real time dispatching information integration to obtain performance metrics in terms of reliability, availability, and maintainability. Research limitations/implications – The presented system can be further developed to generic factory manufacturing with the presented logic and architecture proliferation. Originality/value – The IRTD system can integrate the real time customer demand and work in process information, based on which manufacturers can make correct and timely decisions in solving dispatching strategies and ordering selection within an integrated information system.

Economic measuring of losses derived from inventory management at an oil refinery

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Marcos Fabricio Machado ◽  
Daniel Pacheco Lacerda ◽  
Maria Isabel Wolf Motta Morandi ◽  
Luis Felipe Riehs Camargo ◽  
Aline Dresch
Keyword(s):  
Inventory Management ◽  
Performance Indicators ◽  
Design Methodology ◽  
Computational Models ◽  
Oil Refinery ◽  
Economic Losses ◽  
Planning And Scheduling ◽  
Content Type ◽  
Production Planning And Scheduling

PurposeThe purpose of the present study is to identify and measure economically the losses related to inventory management in an oil refinery.Design/methodology/approachAn exploratory case study was conducted to search for a better understanding of a phenomenon and its implications.FindingsThe results obtained based on the case study suggest the need to observe this phenomenon in other contexts and take managerial actions that will eliminate waste as one of the forms of generating value for the company. The results were related to each other and to the traditional metrics of inventory management and can be used as a base to improve mathematical and computational models for production planning and scheduling and also performance indicators.Originality/valueNo studies have been found that attempt to measure the economic losses derived from inventory management and their capacity in this environment.

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