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Fast and Reliable Development of Composite Structures , Using Concurrent/Integrated Engineering

Rolfes, R. and Baaran, J. and Juhasz, J. and Nolden, P. and Teßmer, J. and Töpfer, G. and Zimmermann, R. (2001) Fast and Reliable Development of Composite Structures , Using Concurrent/Integrated Engineering. In: Book of Abstracts, Aeronautics Days 2001 "Preparing for the Global Challenges", p. 169. Aeronautics Days 2001, Hamburg, 29.-31.Januar 2001.

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Abstract

Strong international competition in the civil aircraft market requires a continuous effort of the aircraft manufacturers to improving structural performance and reducing production costs of their products. A key step forward with great potential for achieving both goals is the application of composite materials to primary aircraft structures. However, designing and developing such structures is still a very demanding task, since the number of disciplines involved and the number of design alternatives are high, whereas experience is quite limited. The paper suggests a new Concurrent/Integrated Engineering (CIE) process that aims at applying advanced high-end simulation tools already very early in the design process. Whereas standard Concurrent Engineering approaches mainly focus on interdisciplinary co –located teams, the CIE process concentrates on interdisciplinary tool integration and improvement, where the team members can be dispersed. By that means not only development costs and time are reduced but – and this is specific for the new CIE process – the development risk is reduced and the quality of the product is improved. Involving all disciplines early in the design process might increase problems with redundancy, consistency and actuality of information as compared to sequential engineering. This is prevented by an information system for CIE (ISCIE) which recognises data independencies and finds out an optimal schedule for performing the different tasks. The ISCIE is dynamic which means adaptability to changes of the development process and furthermore allows for hardware-in-the-loop. This is important since not all disciplines can be simulated with sufficient accuracy and early hardware is sometimes beneficial for concreteness and acceptance of new products. Nevertheless, for speeding up the CIE process a new generation of analysis tools is required for as many disciplines as possible. The paper introduces some advanced structural mechanics codes for thermal, stress, failure and damage tolerance analysis. All of them are based on a shell representation of thin-walled composite structures and utilise the finite element method. Thus, the potential for efficient integration is high, which is underlined by illustrative examples.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001,
Title:Fast and Reliable Development of Composite Structures , Using Concurrent/Integrated Engineering
Authors:
AuthorsInstitution or Email of Authors
Rolfes, R.UNSPECIFIED
Baaran, J.UNSPECIFIED
Juhasz, J.UNSPECIFIED
Nolden, P.UNSPECIFIED
Teßmer, J.UNSPECIFIED
Töpfer, G.UNSPECIFIED
Zimmermann, R.UNSPECIFIED
Date:2001
Journal or Publication Title:Book of Abstracts, Aeronautics Days 2001 "Preparing for the Global Challenges"
Page Range:p. 169
Editors:
EditorsEmail
European Commission, UNSPECIFIED
Status:Published
Event Title:Aeronautics Days 2001, Hamburg, 29.-31.Januar 2001
Organizer:European Commission, Community research
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Institut für Strukturmechanik
Deposited By: Sibylle Wolff
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 16:07

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