Simulation of Electromagnetic Effects of Lightning strike for the Connected Aircraft

Important results from the project

In SIMLIGHT we have developed new features necessary for simulation of lightning strikes and tested them in realistic scenarios. The developed features include both geometry processing and numerical solver features. Physical measurements of induced currents in cabling inside the wing of a retired fighter jet were also conducted and compared with numerical simulations showing good agreement, given the complexity of the model.

Expected long term effects

Through its collaboration between SAAB, ESI and ITI, SIMLIGHT has had the opportunity to examine the entire process in lightning simulation, from CAD modeling to identification of impact zones, mesh generation, numerical solution and finally comparison with physical measurements on realistic structures. The result is both increased knowledge and experience and the development of new functionality in the virtual testing toolchain.

Approach and implementation

The project has been carried out as an international collaboration between SAAB and ESI in Sweden and ITI in England. Due to the corona pandemic, only digital meetings have been held, but this is deemed not to have caused any problems for the implementation of the project. The cooperation within the project has been very good and the contact with the Swedish and English authorities has also worked well.