Now showing 1 - 3 of 3
  • Publication
    Decision support solutions for factory and network logistics operations
    ( 2017)
    Ilie-Zudor, E.
    ;
    Kemény, Z.
    ;
    Pfeiffer, A.
    ;
    Monostori, L.
    The paper examines the relationship of decision levels, performance measures and modelling and decision support approaches through the example of two implemented decision support systems for manufacturing and logistics application fields. Aside from highlighting the relevance of decision support for making industrial networks fit for emerging challenges, the relevance of the two presented EU FP7 projects VFF and ADVANCE to the Factories of the Future vision is shown. A discussion of the two projects outlines future research, with particular focus on challenges that arise from integration across levels of the decision hierarchy, within an organisationally heterogeneous network.
  • Publication
    Generic data structure and validation methodology for simulation of manufacturing systems
    ( 2016)
    Popovics, G.
    ;
    Pfeiffer, A.
    ;
    Monostori, L.
    In recent years, the analysis and evaluation of manufacturing systemsâ behaviour and their performance became essential. Discrete event simulation (DES) as a digital enterprise technology is an effective tool both in production related decision support processes and in structure or performance analysis of manufacturing systems. Building a DES model of a manufacturing system is a difficult task and requires special competence. Reducing the efforts spent on draft simulation is the aim of an ongoing research which is presented in the paper. The developed framework simplifies and accelerates the process of model building. A production oriented implementation of the ANSI/ISA-95 standard was used by the proposed modelling methodology to define a generic data structure supporting the creation of models without specific knowledge related to the simulation software applied. The data structure enables the development and application of proprietary simulation engines tailored for specific problems.
  • Publication
    Process planning and offline programming for robotic remote laser welding systems
    ( 2016)
    Erdos, G.
    ;
    Kardos, C.
    ;
    Kemény, Z.
    ;
    Kovács, A.
    ;
    Váncza, J.
    The paper introduces a complete offline programming toolbox for remote laser welding (RLW) which provides a semi-automated method for computing close-to-optimal robot programs. A workflow is proposed for the complete planning process, and new models and algorithms are presented for solving the optimisation problems related to each step of the workflow: the sequencing of the welding tasks, path planning, workpiece placement, calculation of inverse kinematics and the robot trajectory, as well as for generating the robot program code. The paper summarises the results of an industrial case study on the assembly of a car door using RLW technology, which illustrates the feasibility and the efficiency of the proposed approach.