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Results of a Liquid Rocket Booster (LRB) Nozzle Throat Related Thermo-Mechanical Fatigue (TMF) Panel Test

Riccius, Jörg (2019) Results of a Liquid Rocket Booster (LRB) Nozzle Throat Related Thermo-Mechanical Fatigue (TMF) Panel Test. In: 32nd International Symposium on Space Technology and Science. 32nd International Symposium on Space Technology and Science, 15. - 21. Jun. 2019, Fukui, Japan.

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Official URL: https://archive.ists.or.jp/upload_pdf/2019-a-55.pdf

Abstract

Results of a TMF test based on a (liquid rocket booster hot-run related) laser-on hold time of 200 s are shown in this manuscript. A (supercritical N2) coolant inlet temperature of 160 K and a coolant outlet pressure of 5 MPa were applied during the cold flow. Due to fixed control valve settings and LN2 pump speed during the (laser-on) hot rut, these two values increased slightly during each thermal loading period of the TMF test. The coolant mass flow rate was tuned to obtain an average heat flux of 20 MW/m2 into the TMF panel structure in the center of the laser-loading area. By a fine-tuning of the laser power, a maximum TMF panel wall temperature of 1000 K was achieved from the 2nd cycle to the failure cycle. The most important result of the TMF test is the observed fatigue life of 369 cycles to failure. A series of additional measurements provide e.g. the 2d thermal field and the 2d displacement field during each hot run.

Item URL in elib:https://elib.dlr.de/133369/
Document Type:Conference or Workshop Item (Speech)
Title:Results of a Liquid Rocket Booster (LRB) Nozzle Throat Related Thermo-Mechanical Fatigue (TMF) Panel Test
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Riccius, JörgJoerg.Riccius (at) dlr.dehttps://orcid.org/0000-0002-5935-874X
Date:2019
Journal or Publication Title:32nd International Symposium on Space Technology and Science
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:LRB, LRE, LCF, CuCrZr, TMF
Event Title:32nd International Symposium on Space Technology and Science
Event Location:Fukui, Japan
Event Type:international Conference
Event Dates:15. - 21. Jun. 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):Proj RLV-Schlüsseltechnologien
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Rocket Propulsion
Deposited By: Hanke, Michaela
Deposited On:10 Jan 2020 08:51
Last Modified:10 Jan 2020 08:51

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