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Optimization of Finocyl Grain Geometries of Solid Rocket Boosters

Poppe, Georg and Koch, Patrick and Bozic, Ognjan and Lancelle, Daniel (2015) Optimization of Finocyl Grain Geometries of Solid Rocket Boosters. In: European Conference for Aerospace Sciences (ISSN: 1270-9638). 6th European Conference for AeroSpace Sciences, 29. Jul. - 03. Jul. 2015, Kraków, Polen. ISSN 1270-9638

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Abstract

A common propellant grain geometry for solid rocket motors consisting of a combined cylindrical and finocyl geometry is explained. The burn-off is simulated by a DLR simulation tool, which gives amongst others a thrust curve as the result. The burn-off simulator was coupled with an optimizer, which uses a Mesh Adaptive Direct Search method to find an optimal solution using a black box program. The assessment function and several constraints are explained. A propellant grain for a possible booster stage for a hypothetical space launcher is designed using the combination of the burn-off simulator and the optimizer. The combination of both tools produces suffcient results for the predesign phase of a solid rocket motor.

Item URL in elib:https://elib.dlr.de/98144/
Document Type:Conference or Workshop Item (Speech)
Title:Optimization of Finocyl Grain Geometries of Solid Rocket Boosters
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Poppe, Georggeorg.poppe (at) dlr.dehttps://orcid.org/0000-0001-9003-3057
Koch, Patrickpatrick.koch (at) dlr.deUNSPECIFIED
Bozic, Ognjanognjan.bozic (at) dlr.deUNSPECIFIED
Lancelle, Danieldaniel.lancelle (at) dlr.deUNSPECIFIED
Date:29 June 2015
Journal or Publication Title:European Conference for Aerospace Sciences (ISSN: 1270-9638)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
ISSN:1270-9638
Status:Published
Keywords:propellant grain, solid rocket motor, optimization, burn-off simulation, european space launcher, mesh adaptive direct search
Event Title:6th European Conference for AeroSpace Sciences
Event Location:Kraków, Polen
Event Type:international Conference
Event Dates:29. Jul. - 03. Jul. 2015
Organizer:European Conference for AeroSpace Sciences
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):R - Projekt X-TRAS
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, BS
Deposited By: Poppe, Georg
Deposited On:09 Sep 2015 12:24
Last Modified:09 Mar 2018 09:53

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