Optimisation of Segregation Distances between Electric Cable Bundles Embedded in a Structure

Abstract

This paper presents the optimisation of the segregation distance between two electric cable bundles installed in an aircraft structure under electromagnetic compatibility constraints. We first describe the problem formulation where a probabilistic constraint has to be verified during the optimisation process. To overcome the nonlinearity of the constraint function and guarantee the algorithm convergence, we propose a joint approach between Monte Carlo sampling and a Kriging surrogate to estimate the optimum distance with a low computational cost. This methodology was tested on a realistic use-case of distance segregation between cable bundles.

Keywords

• electromagnetic susceptibility
• segregation distances
• uncertainty quantification
• reliability-based design optimisation