Uncertainty Quantification of Wire Tolerances in Coil Assembly
Romas Zubavičius (TU Delft - Integral Design & Management)
Maria Nogal (TU Delft - Integral Design & Management)
Gan Fu (Eindhoven University of Technology)
Mitrofan Curti (Eindhoven University of Technology)
Oswaldo Morales-Nápoles (TU Delft - Hydraulic Structures and Flood Risk)
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Abstract
Manufacturing imperfections are an inherent aspect of the production process, affecting the reliability and performance of all engineered components, including actuators. This work investigates the effects of manufacturing uncertainty in coil assembly. Given the manufacturing tolerances of geometrical and material properties of wires and coils, the coil’s electrical response is studied from a probabilistic perspective. While many researchers acknowledge these uncertainties, they often do not quantify their effects on the system’s response. We propose the use of copulas to model nonlinear relationships and quantify the probabilistic dependence between design variables (i.e., wire and coil’s properties) and their effects on electrical responses. Additionally, tolerances of the design variables are determined through unstructured expert elicitation. The results show the impact of the thickness of the wire’s insulation in the performance of the coil. Furthermore, we establish a design space that is studied probabilistically, allowing for probabilistic design optimization.