This document may be downloaded, read, stored and printed for your own use within the limits of § 53 UrhG but it may not be distributed via the internet or passed on to external parties.Dieses Dokument darf im Rahmen von § 53 UrhG zum eigenen Gebrauch kostenfrei heruntergeladen, gelesen, gespeichert und ausgedruckt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.Hömberg, DietmarSteinbrecher, AndreasStykel, Tatjana2016-03-242019-06-2820090946-8633https://doi.org/10.34657/2928https://oa.tib.eu/renate/handle/123456789/2203In this article we will consider the optimal control of robot guided laser material treatments, where the discrete multibody system model of a robot is coupled with a PDE model of the laser treatment. We will present and discuss several optimization approaches of such optimal control problems and its properties in view of a robust and suitable numerical solution. We will illustrate the approaches in an application to the surface hardening of steel.application/pdfeng510optimal controlcoupled systemsheat equationequations of motiongradient based methodReport