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Semi-analytical methods for rapid pre-dimensioning of launcher structures subjected to Booster load introduction

Rittweger, Andreas (2017) Semi-analytical methods for rapid pre-dimensioning of launcher structures subjected to Booster load introduction. Acta Astronautica (141), pp. 158-171. Elsevier. DOI: 10.1016/j.actaastro.2017.09.031 ISSN 0094-5765

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Official URL: http://www.sciencedirect.com/science/article/pii/S0094576517305556

Abstract

This paper describes a new analysis method for orthotropic cylindrical shell structures with arbitrary stiffness distribution. The structural model consists of ring frame elements, orthotropic membrane panels and longitudinal stiffeners (stringer). The element stiffness matrix of the orthotropic panel is based on the displacements functions of its boundary only. The boundary value problem is solved by developing the stresses in Taylor series and applying the principal of virtual work (virtual forces). By this way it is possible to have large elements able to describe stress peaks. The method is applied for Booster load introduction into launcher structures and reduces the number of degrees of freedom drastically, allowing rapid analyses necessary for parametric optimization in the pre-design phase.

Item URL in elib:https://elib.dlr.de/114774/
Document Type:Article
Title:Semi-analytical methods for rapid pre-dimensioning of launcher structures subjected to Booster load introduction
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Rittweger, Andreasandreas.rittweger (at) dlr.dehttps://orcid.org/0000-0002-8398-0467
Date:2017
Journal or Publication Title:Acta Astronautica
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.actaastro.2017.09.031
Page Range:pp. 158-171
Publisher:Elsevier
ISSN:0094-5765
Status:Published
Keywords:Orthotropic stiffened structure; High order finite element
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Bremen
Institutes and Institutions:Institute of Space Systems
Deposited By: Dannemann, Tanja
Deposited On:19 Oct 2017 15:02
Last Modified:04 Mar 2020 13:11

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