At­tend­ing the "FVA In­form­a­tion­stagung" 2022

The KAt was represented at the DMRC booth at the "FVA-Informationstagung" in Würzburg which took place from Dez. 06-07, 2022. On both days, in addition to interactive exchanges at the booths of professional exhibitors from industry and research, lectures as well as results of various research projects in the field of drive engineering were presented. Michael Haase, KAt, gave a talk on the successfully completed cooperative project "Innovative lightweight design and cooling concepts for electrical machines using additive manufacturing" (ILuKadd3D), which was carried out the Chairs of Design and Drive Technology (KAt),  Material Science (LWK) and Fluid Process Engineering (FVT) at Paderborn University and the Institute for Drive Systems and Power Electronics (IAL) of the Leibniz University Hannover.

The project was aimed at integrating innovative and conventinally not manufacturable cooling and lightweight construction concepts into the rotor and the stator casing of a permanent magnet synchronous generator (PMSM) by additive manufacturing. The design of magnetic flux had to be considered to not negatively influence the functionality and performance of an additively manufactured one compared to a conventional machine.

The functional test proved that, despite the lack of electrical sheets, the prototype exhibits an efficiency similar to a comparable conventional e-machines due to the implementation of a novel innovative concept. Additionally, due to the integrated cooling structures, significant reductions in the mean overheat as well as in pressure loss were demonstrated. The targeted weight reduction could also be implemented by integrating the identified lightweight structures.

The compiled and experimentally proven results serve as a starting point for further optimizations in other projects.