Validation of Electromagnetic model for an Aircraft Under HIRF Condition With the NonIntrusive Polynomial Chaos Methods

Aircraft requires assessing their robustness against catastrophic effects when it is exposed to High Intensity Radiated Field (HIRF) environment in the aeronautic industry. The electromagnetic (EM) simulation data can be used partly instead of measurement data to reduce experimental costs. To this aim, the confidence in EM simulation becomes a key issue. In this paper, the numerical model for a practical aircraft in HIRF given by the parallel finite difference time domain (FDTD) method based solver J ElectroMagnetic Solver-Finite Difference Time Domain (JEMS-FDTD) is validated by comparing with the measurement data. The uncertainty quantification analysis on the input parameters is done for the electric field with the method of non-intrusive polynomial chaos (NIPC). At last, the feature selective validation (FSV) is performed to quantify the comparison of the experimental data and the best simulation estimate.