This study investigates the coordination of production scheduling and maintenance planning in theflow shop scheduling environment. The problem is considered in a bi-objective form, minimizing themakespan as the production scheduling criterion and minimizing the system unavailability as themaintenance planning criterion. The time interval between consecutive maintenance activities as well as the...

In this paper we present a multi-period mixed integer linear programming model for the simultaneous planning and scheduling of single stage multi-product continuous plants with parallel units. While e ective for short time horizons, the proposed scheduling model becomes computationally expensive to solve for long time horizons. In order to address this problem, we propose a bi-level decompositi...

We review the integration of medium-term production planning and short-term scheduling. We begin with an overview of supply chain management and the associated planning problems. Next, we formally define the production planning problem and explain why integration with scheduling leads to better solutions. We present the major modeling approaches for the integration of scheduling and planning de...

The rolling horizon method has been proposed to address the integrated production planning and scheduling optimization problem. Since the method can generally result in small-scale optimization model and fast solution, it has been used in a number of applications in realistic industrial planning and scheduling problems. In this paper, it is first pointed out that the incorporation of valid prod...

Multi-criteria scheduling optimization with genetic algorithms is described. Scheduling optimization methodology provides the planner with a quick and efficient scheduling method and enables him/her to experiment and decide which of the suitable solutions will become the production plan. The scheduling system is composed of a business information system a database, a discrete event simulation m...

Aircraft maintenance planning and scheduling constitute planning, control and execution of materials (spare parts), operations (inspection, disassembly and assembly activities) and resources (labour, machines, transport equipment, etc.). This is a complex problem due to large number of components involved at various planning and execution levels, and the size/nature of resource-intensive mainte...

The challenge of improving production scheduling has inspired many different approaches. This paper examines the key contributions of three individuals: Frederick W. Taylor, who defined the key planning functions and created a planning office; Henry L. Gantt, who provided useful charts to improve scheduling decision-making, and Selmer M. Johnson, who wrote a highly influential paper on the math...

In this paper, we present a unified framework for production planning and scheduling in make-to-order manufacturing. Both planning and scheduling problems are captured as resource-constrained project scheduling problems. The actual models and solution techniques are different at the two levels. Hence, we also suggest an aggregation method that provides the connection between planning and schedu...

Production planning and control within modern manufacturing enterprises is a very complex process. The planning process encompasses decision making that spans from the macro level, such as market forecasting and master production scheduling, down to detail planning on the shop floor, such as the dispatching and sequencing of individual parts orders on a particular machining centre. This paper p...

It is well-known that the Kalman filter for simultaneous localization and mapping (SLAM) converges to a fully-correlated map in the limit of infinite time and data [3]. However, if the exploration trajectory accumulates new information about the world slowly, then convergence of the map can be slow. By making use of the recent development of constant-time SLAM algorithms, we show how informatio...