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Turbine Blades for Reusable Liquid Rocket Engines (LRE) – Numerical Fatigue Life Investigation

Gulczynski, Mateusz T. and Riccius, Jörg and Zametaev, Evgeny and Dos Santos Hahn, Robson Henrique and Deeken, Jan C. and Waxenegger-Wilfing, Günther and Oschwald, Michael (2023) Turbine Blades for Reusable Liquid Rocket Engines (LRE) – Numerical Fatigue Life Investigation. In: 2023 IEEE Aerospace Conference. Institute of Electrical and Electronics Engineers IEEE. 2023 IEEE Aerospace Conference, 4-11 March 2023, Big Sky, Montana, USA. doi: 10.1109/AERO55745.2023.10115912. ISBN 978-1-6654-9032-0. ISSN 1095-323X.

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Official URL: https://ieeexplore.ieee.org/document/10115912


Reusability of LREs in Europe is increasingly attracting the attention of scientific community and industry with leading projects such as THEMIS, CALLISTO (reusable demonstrators for vertical take-off and landing (VTVL)) and Ariane Next – all powered by the reusable cryogenic Oxygen/Methane (LOX/LCH4) engine “Prometheus”. To enable further expansion and cost-effectiveness of the reusability technology for future liquid rocket engines (LREs), research on critical engine components such as turbopumps is crucial. Therefore, within our research we focus on the turbine blade investigation for reusable LRE applications including high cycle fatigue (HCF) and low cycle fatigue (LCF). Validation of defined applied analytical and numerical techniques is established through the Liquid Upper stage deMonstrator ENgine (LUMEN)’s, developed at DLR Lamplodshausen for enhanced expertise in the complete cycle operation for various engine applications, as well as to empower validation studies of the operational conditions to which turbopump components, such as turbine blades, are subjected. Turbine blades are exposed to large thermo-mechanical cyclic strains emerging from an increased temperature driving gas combined with a fast start-up sequence as well as a large rotational speed – essential for acquiring high performance and structural mass efficiency for LREs. Therefore, in addition to bending & torsion as well as thermal gradient and centrifugal forces, it is critical to consider creep effects in durability studies. To forecast the turbine blade fatigue life, analytical (0-D) and numerical approaches for a selected test case are studied. Within the proposed method, a BLISK is assessed for the most severe loading condition considering HCF load by a modified Goodman method, along with a Coffin-Manson based approach for LCF contribution. Each operational cycle under constant maximum loading condition is applied to study the creep effect. As a result, an enhanced fatigue life prediction method including both creep and fatigue conditions for a turbine blade is obtained.

Item URL in elib:https://elib.dlr.de/194305/
Document Type:Conference or Workshop Item (Speech)
Title:Turbine Blades for Reusable Liquid Rocket Engines (LRE) – Numerical Fatigue Life Investigation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Gulczynski, Mateusz T.UNSPECIFIEDhttps://orcid.org/0000-0001-5932-8981UNSPECIFIED
Riccius, JörgUNSPECIFIEDhttps://orcid.org/0000-0002-5935-874X136018591
Dos Santos Hahn, Robson HenriqueUNSPECIFIEDhttps://orcid.org/0000-0002-2389-2043UNSPECIFIED
Deeken, Jan C.UNSPECIFIEDhttps://orcid.org/0000-0002-5714-8845UNSPECIFIED
Waxenegger-Wilfing, GüntherUNSPECIFIEDhttps://orcid.org/0000-0001-5381-6431UNSPECIFIED
Oschwald, MichaelUNSPECIFIEDhttps://orcid.org/0000-0002-9579-9825UNSPECIFIED
Date:March 2023
Journal or Publication Title:2023 IEEE Aerospace Conference
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Publisher:Institute of Electrical and Electronics Engineers IEEE
Series Name:44th IEEE Aerospace Conference
Keywords:LRE; HCF; LCF; FEM; thermal analysis; structural analysis; mean stress; creep; full admission; turbine blade; post-processing; Goodman; Inconel 718
Event Title:2023 IEEE Aerospace Conference
Event Location:Big Sky, Montana, USA
Event Type:international Conference
Event Dates:4-11 March 2023
Organizer:IEEE - Institute of Electrical and Electronics Engineers
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Project LUMEN (Liquid Upper Stage Demonstrator Engine)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Rocket Engine Systems
Deposited By: Gulczynski, Mateusz T.
Deposited On:31 May 2023 07:45
Last Modified:31 May 2023 07:45

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