University of Twente Student Theses


Process modelling for Model Predictive Control of Incremental Sheet Forming

Sikkelbein, D.B. (2021) Process modelling for Model Predictive Control of Incremental Sheet Forming.

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Abstract:Incremental Sheet Forming is a promising flexible sheet forming process that is flawed by its geometric accuracy. A process model can be used to steer the process to its target, but it is difficult to determine a good model due to the non-linearity of forming processes. In this work, it is investigated what types of linearised models can be created for closed-loop control of ISF, and to what extent such models are valid. The models are determined based on FE models, which are also used to investigate the validity of the linearisations, and to test the performance of the controllers. Extensions to existing process models were made and tested on both a simple cone and a more complex two-angle pyramid. The extensions proved to capture some of the non-linearities in the process and increase the performance of the control system.
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Subject:52 mechanical engineering
Programme:Mechanical Engineering MSc (60439)
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