Equivalent modeling of compex acoustic sources with monopole clusters

In a context of rapidly evolving requirements and legislation for greener and more silent vehicles, transportation noise emissions remain the second most deadly environmental pollutant in Europe.

This calls for drastic shifts in the vehicle industry, including the ongoing transition to an electrified transport system, but also the need to continue introducing innovation at virtually all levels of the design chain and vehicles components (engine, electric driving units, compressors, fans, pumps, tire, …).

Addressing these design challenges requires modelling techniques enabling to reduce development times while ensuring to reach ever-increasing performance targets.

For this purpose, the proposed pre-study, a collaboration between Volvo Trucks and KTH Royal Institute of Technology, intends to investigate advanced techniques in order to enable the simulation of complex sound radiation pattern from truck components using equivalent sources consisting of clusters of monopole acoustic source