Optimal number of pallets for reconfigurable cyclic manufacturing plants

Mashaei, Maziar; Lennartson, Bengt; Sannehed, Fredrik; Abbestam, Goran

doi:10.1109/etfa.2009.5347088

Cited by 6 publications

(4 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By focusing on the circular motion of the LPG containers, i.e., the tanks, this case constitutes a cyclical system. This is similar to the case of a production line where workpieces are placed on pallets [2], [3], [4].…”

Section: Introductionmentioning

confidence: 77%

“…Mathematical modeling is a fairly popular method in which the problem is expressed in an optimization formula, for example, mixed integer linear programming (MILP). Mashaei et al [4] discussed the case of a manufacturing system design using pallets using the MILP technique to optimize the number of pallets and was accompanied by the Colored Petri Net (CPN) method as a comparison, and [9] discussed a CLSC case using the MILP method, which was then solved by the concept of Lipschitz Continuity. Queue-based models, often called performance models, are often used to accommodate the dynamics of the states of the system [10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

System Dynamics Modeling of Multi-Channel Supply Chain System: A Hypothetical LPG Distribution with Disloyal Household Customers

Murdapa

Karningsih

Pujawan

2022

Indonesian J. of Inf. Syst.

View full text Add to dashboard Cite

The availability of LPG in the community is a sensitive issue. If there is a shortage, it has the potential to cause chaos and inflation. The final consumers, namely households and micro business stalls, will generally be disloyal. They are not tied to one particular store to get the LPG they need. Since the number of tanks in circulation will remain constant, the analysis of LPG availability can be focused on the number of tanks. Continuous simulation method with system dynamics is generally used in system growth analysis. In this paper the method is utilized to model the discrete movement of tanks circulating in the community which in this case is represented in a much smaller system, consisting of filling stations, agents, and stores. The modeling results provide a sufficient picture of how the availability of the tank can be optimized appropriately.

show abstract

Section: Introductionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

System Dynamics Modeling of Multi-Channel Supply Chain System: A Hypothetical LPG Distribution with Disloyal Household Customers

Murdapa

Karningsih

Pujawan

2022

Indonesian J. of Inf. Syst.

View full text Add to dashboard Cite

show abstract

“…This implies that is eliminated from the energy term for . Accordingly, characterizing the hot and cold idle control by (10) the term (11) monitors the average energy consumption in machine for the window time . Finally, the monitor of the energy consumption for the flow shop in one cycle production of the part set is obtained by (12) where (13) is the constant term, and .…”

Section: A Average Energy Consumption Monitormentioning

confidence: 99%

“…Control of a flow shop line based on the pallet system has been the subject of interest in numerous studies. The most focused objectives, initiated by the lean philosophy [6], are minimization of lead times and resources [5], [7]- [10], and enhancement of the line performance [11]- [14].…”

Section: A a Cyclic Flow Shop Plant Based On A One-loop Pallet Systemmentioning

confidence: 99%

Energy Reduction in a Pallet-Constrained Flow Shop Through On–Off Control of Idle Machines

Mashaei

Lennartson

2013

IEEE Trans. Automat. Sci. Eng.

Self Cite

View full text Add to dashboard Cite

For flexible manufacturing systems, there are normally some durations in which a number of machines are idle and do not process any parts. Devising a control policy to turn off the idle machines and reduce their level of energy consumption is a significant contribution towards the green manufacturing paradigm. This paper addresses the design of such a control strategy for a closed-loop flow shop plant based on a one-loop pallet system. The main goal is to coordinate running of the machines and motion of pallets to gain the minimal energy consumption in idle machines, as well as to obtain the desired throughput for the plant. To fulfill this goal, first mathematical conditions, which economically characterize the on-off control for machines, are presented. Constrained to these conditions and the mathematical models describing the pallet system, a mixed integer nonlinear minimization problem with the energy monitor as the objective function is then developed. Provided that the problem computation time can be managed, the optimal control for the operation of the plant and the minimal energy consumption in the idle machines are computed. To deal with the time complexity, a linearized form of the model and a heuristic approach are introduced. These methods are applied to some examples of industrial size, and their impacts in practice are discussed and verified by using a discrete event simulation tool.Note to Practitioners-Control of a flexible manufacturing plant in order to produce a set of part types in a determined production cycle time is a challenging problem. In addition, the problem is more complicated if energy efficiency is considered as an important key in the plant control design. This study provides methods which tackles this complex problem for an industrial size of a pallet-constrained flow shop. The outcome is an optimal switching control strategy, which reduces energy consumption for idle processing machines and maintains a desired throughput for the flow shop plant.Index Terms-Energy model, flow shop plant, heuristic algorithm, optimization, pallet system.

show abstract