Current status of the project is showing huge mass reduction in comparison to previous solutions. Chosen materials implemented in to current 3D design resulted mass reduction estimation by 40-50%. Final delivered demonstrators are securing also quite big mass reduction around 33% in total. Rise of mass of delivered demonstrators was done due to production constrains, thus delivered result is also very good.
Calculations of acoustic performances of both demonstrators also show rise of acoustic attenuation compared to current solution. Acoustic samples and testing activities provided real data for calculations, that slightly reduced expected attenuation levels, but overall calculations showed good match with experiment.
Thermal and fire proof performance calculation are showing possibility to remove any additional heat protection, as proposed solutions secure fulfillment of those requirements. Final tests showed, that in fact there is still possibility of improvement in terms of mass reduction, as flame did not penetrate both samples.
Improvement was done also on maintenance field, as proposed design can be partially replace, if needed, contradictory to previous solution. Delivered demonstrators fully showed, that proposed design solution was possible to be implemented and delivered.
Planned research on new technologies carried out in parallel with design activities focused on searching for solutions providing the best performance developed innovations meeting the needs of the European and global markets due to huge improvement in acoustic attenuation and big mass reduction in highly demand environment for such components. Project results should be widely used by aviation industry, as possibility of application developed technologies is very wide, not only auxiliary power unit equipment. Delivered solutions shows clearly, that it can be for sure used for commercial purpose, with additional statement of future works needed for final product phase achievement.
