at Google ScholarTitle data
Kuhn, Marius ; Hentschel, Rick ; Rosnitschek, Tobias ; Braun, Stephan ; Tremmel, Stephan:
Identifying Optimization Potential of a Centrifugal Pump Inducer Using PBF-LB/M.
In: Endress, Felix ; Rieser, Jasper ; Horoschenkoff, Alexander ; Höfer, Philipp ; Dickhut, Tobias ; Zimmermann, Markus
(ed.):
Proceedings of the Munich Symposium on Lightweight Design 2023. -
Cham
: Springer
,
2024
. - pp. 33-42
ISBN 978-3-031-64668-3
DOI: https://doi.org/10.1007/978-3-031-64669-0_4
Abstract in another language
Inducer can be used to improve the suction capability or reduce the required net positive suction head (NPSH) value of a centrifugal pump. By increasing the static pressure, cavitation during the pump operation is reduced and a damaging of the mechanical components is prevented. Conventional manufacturing by casting or welding restricts either the freedom of design or requires the assembly of various parts. Thus, this leads to deviations compared with the geometry desired by fluid mechanics and negatively affects the performance of the inducer. Therefore, manufacturing by the PBF-LB/M additive manufacturing process is considered to maintain the desired geometry as close as possible. To exploit the full design freedom of the PBF-LB/M, a structural optimization of the geometry is first carried out using Generative Design. The objective of the optimization was to minimize the component mass, while maintaining the inducer geometry as prescribed by fluid mechanics. A mass reduction of 14.86% was achieved by the structural optimization of the shaft of the inducer. Furthermore, a design of experiment was conducted to reduce the support structures by varying the exposure strategy. For this purpose, the inducer was manufactured in an experimental test series with different process parameters and exposure patterns on an EOS M290 additive manufacturing machine. The results indicate that manufacturing by PBF-LB/M resolves the accuracy issues of conventional manufacturing while nearly 15% weight is saved by deploying Generative Design during the product design. Additionally, adapting the exposure strategy reduced the required support structures by 78%, which led to reduced manufacturing costs by nearly 35%.
Further data
| Item Type: | Article in a book |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Faculties > Faculty of Engineering Science > Former Professors > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing. Frank Rieg Faculties > Faculty of Engineering Science > Chair Engineering Design and CAD > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing Stephan Tremmel Research Institutions > Research Units > Forschungsstelle für Additive Innovationen - Campus Additive.Innovationen (CA.I) |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 26 Aug 2024 05:50 |
| Last Modified: | 26 Aug 2024 05:50 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/90256 |