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Semi-analytical methods for rapid pre-dimensioning of launcher structures subjected to Booster Load Introduction

Rittweger, Andreas (2016) Semi-analytical methods for rapid pre-dimensioning of launcher structures subjected to Booster Load Introduction. In: Proceedings of the 67th International Astronautical Congress. International Astronautical Congress 2016, 26.-30. Sept 2016, Guadalajara, Mexico. ISBN 9781510835825

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Official URL: http://iafastro.directory/iac/archive/browse/IAC-16/C2/1/32926/

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/111142/
Document Type:Conference or Workshop Item (Speech)
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:September 2016
Journal or Publication Title:Proceedings of the 67th International Astronautical Congress
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:IAC-16.C2.1.1
ISBN:9781510835825
Status:Published
Keywords:orthotropic stiffened structure, high order finite element
Event Title:International Astronautical Congress 2016
Event Location:Guadalajara, Mexico
Event Type:international Conference
Event Dates:26.-30. Sept 2016
Organizer:International Astronautical Federation (IAF)
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:14 Feb 2017 11:44
Last Modified:04 Mar 2020 13:12

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