Simplification Method for the Assessment of the EM Response of a Complex Cable Harness

This paper describes a simplification technique in order to model a complex cable bundle made of a large amount of wires. The basic principle consists in the description of the topology of the cable bundle in terms of point-to-point cable links and to model those cable-links as equivalent wires in a multiconductor transmission line network model. The different steps required to build the model are first presented. Then, a validation on a wiring bundle of the NH90 helicopter, carried out in the frame of the French MOVEA project, demonstrates the pertinence of such an approach in industrial contexts.