scheduling is an important subject of production and operations management area. in flow-shop scheduling, the objective is to obtain a sequence of jobs which when processed in a fixed order of machines, will optimize some well defined criteria. the concept of transportation time is very important in scheduling. transportation can be done by robots. in situations that robots are used to transpor...

Paradigms in modern production are shifting and pose new demands for optimization techniques. The emergence of new, versatile, reconfigurable and networked machines enables flexible manufacturing scenarios which require, in particular, planning and scheduling methods for cyber-physical production systems to be flexible, reasonably fast, and anytime. This paper presents an approach to flexible j...

Integration of production planning and scheduling is a class of problems commonly found in manufacturing industry. This class of problems associated with precedence constraint has been previously modeled and optimized by the authors, in which, it requires a multidimensional optimization at the same time: what to make, how many to make, where to make and the order to make. It is a combinatorial,...

Nowadays, several methods in production management mainly focus on the different partners of supply chain management. In real world, the capacity of planes is limited. In addition, the recent decade has seen the rapid development of controlling the uncertainty in the production scheduling configurations along with proposing novel solution approaches. This paper proposes a new mathematical model...

We suggest a novel approach to modelling and solving production planning (PP) problems in make-to-order production environments. This approach unifies the capacity and the material flow oriented aspects of PP. Orders are modelled as projects that compete for limited resources. The projects consist of networks of variable-intensity activities which may require several resources at the same time....

Predictive scheduling is a new approach used in production planning. The aim of this approach is to develop robust schedules and solutions that are able to absorb disruptions during the schedule execution. In this paper, we present algorithms of predictive scheduling for the Resource-Constrained Project Scheduling Problem (RCPSP), with defined dates of selected activities.

Traditionally, scheduling and process planning are considered as two different functions in a manufacturing environment. In this paper we consider the simultaneous selection of best process plan and scheduling of jobs in a job shop environment. We propose a spreadsheet based genetic algorithm (GA) to solve this class of problem. The shop model is built in Microsoft Excel spreadsheet to find the...

Economic lot scheduling problem has been an important topic in production planning and scheduling research for more than four decades. The problem is known to be NP-hard due to its combinatorial nature. In this paper, a meta-heuristics algorithm based on Simulated Annealing (SA) is proposed. Besides on explaining how to use SA, the effects of changing in production frequency on sequence and als...

We present a unified multi-agent technology for decision making support in production planning and scheduling, manufacturing simulation in and supply chain management. The technology has been tested on several industrial cases and is used in a daily production planning processes of one important automobile industry supplier in the Czech Republic.