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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
(Hrsg.):
Proceedings of the Munich Symposium on Lightweight Design 2023. -
Cham
: Springer
,
2024
. - S. 33-42
ISBN 978-3-031-64668-3
DOI: https://doi.org/10.1007/978-3-031-64669-0_4
Abstract
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%.
Weitere Angaben
| Publikationsform: | Aufsatz in einem Buch |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften > Ehemalige ProfessorInnen > Lehrstuhl Konstruktionslehre/CAD - Univ.-Prof. Dr.-Ing. Frank Rieg Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Konstruktionslehre und CAD > Lehrstuhl Konstruktionslehre und CAD - Univ.-Prof. Dr.-Ing. Stephan Tremmel Forschungseinrichtungen > Forschungsstellen > Forschungsstelle für Additive Innovationen - Campus Additive.Innovationen (CA.I) |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 26 Aug 2024 05:50 |
| Letzte Änderung: | 26 Aug 2024 05:50 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/90256 |