Faunhofer Project Center for Production Management and Informatics PMI

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  • Publication
    Planning of remote laser welding processes
    ( 2013)
    Erdös, Gábor
    ;
    Kemény, Zsolt
    ;
    Kovács, András
    ;
    Váncza, József
    The paper discusses the technical background of the remote laser welding (RLW) technology, its novel opportunities and implications for planning processes. Our ultimate goal is to develop a complete off-line programming toolbox for RLW which can provide an automated method for computing close-to-optimal robot programs. We suggest a workflow for the complete planning process, and propose new models and algorithms for solving the sequencing of welding tasks in conjunction with path planning, as well as for generating the inverse kinematics of the robot. The paper summarizes results of first computational experiments in an automotive case study using an industrial robot. The proposed method leads to a substantial reduction in the cycle time of the welding operation compared to an earlier approach.
  • Publication
    A system for the detailed scheduling of wind farm maintenance
    ( 2011)
    Kovács, András
    ;
    Erdös, Gábor
    ;
    Viharos, Zsolt János
    ;
    Monostori, László
    As the share of wind energy increases on the global energy market, the efficient operation of wind farms gains an ever growing significance. Among operational decisions, the planning and scheduling of maintenance operations are crucial for the availability of turbines, as well as for the operational costs. The paper introduces a system that performs the detailed scheduling of maintenance operations at a set of wind farms maintained by common personnel. The scheduling problem is modeled and solved as a mixed-integer linear program. The system constitutes a module of an integrated framework for condition monitoring, diagnosis, and maintenance of wind turbines.