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Integrated production/inventory and condition-based maintenance control of a multi-item production system under stochastic demand Ghent University
This paper studies the joint production/inventory and condition-based maintenance control for a multi-product manufacturing system with setup and maintenance times under stochastic product demands. The problem is modelled as a semi-Markov decision process (SMDP). The objective is to find a joint production and maintenance policy that minimizes the long run expected discounted cost including setup, holding, lost sales, preventive and corrective ...
A proactive inventory policy based on real-time degradation data Ghent University
Methodology to integrate ergonomics information in contextualized digital work instructions Ghent University
Musculoskeletal disorders (MSDs), often caused by working in non-ergonomic circumstances, are the most important category of work-related diseases. Different methods exist for examining ergonomics through a variety of postural evaluation techniques (e.g. Rapid Entire Body Assessment (REBA)), which are mostly performed through manual survey-based observations. Consequently, measuring ergonomics of operators is time-consuming and happens only ...
Simulation-based optimization of selective assembly costs in a hybrid production context Ghent University
Simulated-annealing algorithm to solve multi-component matching problems in generalised selective assembly Ghent University
Generalized Selective Assembly is a strategy of intelligently matching components based on their measured feature values. This strategy requires algorithms that, given a list of components, their measured feature values, and a list of quality constraints between the components, returns a list of assemblies and their comprising components, maximizing the number of in-spec assemblies. Although assemblies in practice often involve one-to-many, ...
Integrated condition-based maintenance and lot-size planning Ghent University
The lot-size problem has been studied frequently in literature. An efficient lot-size planning achieves a proper balance between setup costs, inventory holding costs, and lost sales costs. Nevertheless, a lot-size planning may turn out to be worthless when the machine that produces these products breaks down. A solution may be to add sensors to the machine, monitor the condition (degradation) of the machine, and take that condition into account ...
Joint optimization of dynamic lot-sizing and condition-based maintenance Ghent University
This study investigates the dynamic lot-sizing problem integrated with Condition-based maintenance (CBM) for a stochastically deteriorating production system. The main difference of this work and the previous literature on the joint optimization of lot-sizing and CBM is the relaxation of the constant demand assumption. In addition, the influence of the lot-size quantity on the evolution of the equipment degradation is considered. To optimally ...