PAM-CEM Solutions
3D/MTL* Coupling Procedures

As soon as the targeted model is including complex cable networks made of bundles gathering hundred of wires integrated in realistic geometries, coupling dedicated software tools is the key feature. PAM-CEM Solutions are proposing unique industrial capabilities to handle such fully realistic models. Starting from the geometrical model, specifying the harness’s path inside the vehicle as well as the related electrical architecture, all data files are automatically generated for the analysis relying on the 3D/MTL coupling procedure.

This includes the wires’ path inside the 3D model for the further PAM-CEM computation of radiated electric fields, the network to be managed within the CRIPTE analysis, but also the cross section of all bundles appearing to be necessary to characterize the related line parameters (resistance, inductance & capacitance). Once the harness is fully characterized, a dedicated module allows the automatic transfer of electromagnetic values from one product to the other. By means of direct or inverse Fourier transforms, electromagnetic data computed in the first stage of the procedure are automatically adapted and interpolated to fit the expected input of the second product to be used, whether EMS (Electromagnetic Susceptibility) or EMR (Electromagnetic Radiation) is targeted.

• Time radiated fields along the wires’ path (tangential components of the electric field following the AGRAWAL coupling procedure) are adapted to the expected CRIPTE input for further EMS combination,

• On the other hand, induced currents computed by CRIPTE when dealing with the EMR configuration, are defining elementary radiating sources to be taken into account during the time computation of the entire 3D electromagnetic environment.

Initiated within the AutoEMC European project and continuously improved through several industrial partnerships, the C3M coupling procedure was extensively validated with experimental measurements and strongly industrialized in order to offer an “as easy as possible” solution for the complete electromagnetic analysis of fully realistic models.

(*) MTL: Multiconductor Transmission Lines