Project Objectives and main Results

The ARROW project aims at developing a numerical methodology and a CAE tool (hereafter referred as “ALEEN-L Modelling Tool”) suited to model user defined cable-harness configurations installed aboard an aircraft made of composite and conductive materials, equipped with an Almost Equipotential Electrical Network.

In particular the ALEEN-L Tool has to be suited to evaluate the Voc(t) and Isc(t) waveforms (Voc=Open Circuit voltage; Isc=Short Circuit current) at equipment loads, induced by lightning strikes on the aircraft, in order to allow the verification of their compatibility with the design and qualification values.


Here below the main Expected Results:


  • (ER1) – Definition of accurate and effective numerical modelling methodologies for the evaluation of the indirect effects of lightning strikes[1] on composite aircrafts equipped with any ALEEN configuration,
  • (ER2) - Development of numerical codes and the related interfaces implementing the above mentioned modelling methodologies
  • (ER3) - Development of a CAE SW Tool (ALEEN-L Tool) implementing a set of pre-processing, post-processing and management functionalities suited to input the modelling data (CAD models, materials properties, cable-harnesses, measured data…), to prepare the electromagnetic model (i.e. in general referred as “meshing functions”, to be evaluated by means of the codes of ER2), to run the simulations and finally to elaborate the EM raw data and visualize the interesting engineered parameters
  • (ER4) - Consistency verification with respect to data measured on an specific mock-up


[1] (Voc and Isc) on equipment installed aboard