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Quantification of the Elements in the Relationship matrix: A conceptual study of Aircraft Fuel System
Linköping University, Department of Management and Engineering, Machine Design. Linköping University, The Institute of Technology.
Linköping University, Department of Management and Engineering, Machine Design. Linköping University, The Institute of Technology.
Linköping University, Department of Mechanical Engineering, Machine Design. Linköping University, The Institute of Technology.
2004 (English)In: 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, USA, paper AIAA-2004-0538, 2004, no AIAA-2004-0538, 5244-5252 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper describes how the framework of thc house of quality and design structure matrices are used to visualizee dependencies between top level requirements and engineering design properties. It is also discussed how quantification of the matrix elements may increase the understanding of how the top-level requirements impacts the low-level design parameters. lndeed, history has shown that overlooking combinatory effects between subsystems and night conditions may become expensive. Not only in terms of not goning getting the sizing right but more so if an entirely wrong concept is chosen.

This paper shows a matrix technique that has successfully been used at Saab and how this technique may facilitate the cconcept evaluation process of early fuel system design.

The matrix method aids the designer to take alk the relevant aspects into account when evaluating a design. Use of the method will also increase the understanding of what top-level requirement or combination thereof, which drives the choice of one particular concept rather than the other. The understanding of how the top-level requiremEnts impacts low level design parameters such as pump size or pipe diameter will also increse.

Place, publisher, year, edition, pages
2004. no AIAA-2004-0538, 5244-5252 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-12984DOI: 10.2514/6.2004-538OAI: oai:DiVA.org:liu-12984DiVA: diva2:17588
Conference
42nd AIAA Aerospace Sciences Meeting and Exhibit, 5-8 Januari, Reno, USA
Available from: 2008-04-01 Created: 2008-04-01 Last updated: 2014-01-21Bibliographically approved
In thesis
1. On aircraft fuel systems: conceptual design and modeling
Open this publication in new window or tab >>On aircraft fuel systems: conceptual design and modeling
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The largest and most important fluid system in an aircraft is the fuel system. Obviously, future aircraft projects involve the design of fuel system to some degree. In this project design methodologies for aircraft fuel systems are studied, with the aim to shortening the system development time.

This is done by means of illustrative examples of how optimization and the use of matrix methods, such as the morphological matrix, house of quality and the design structure matrix, have been developed and implemented at Saab Aerospace in the conceptual design of aircraft fuel systems. The methods introduce automation early in the development process and increase understanding of how top requirements regarding the aircraft level impact low-level engineering parameters such as pipe diameter, pump size, etc. The morphological matrix and the house of quality matrix are quantified, which opens up for use of design optimization and probabilistic design.

The thesis also discusses a systematic approach when building a large simulation model of a fluid system where the objective is to minimize the development time by applying a strategy that enables parallel development and collaborative engineering, and also by building the model to the correct level of detail. By correct level of detail is meant the level that yields a simulation outcome that meets the stakeholders’ expectations. The experienced gained at Saab in building a simulation model, mainly from the Gripen fuel system, but also the accumulated experience from other system models, is condensed and fitted into an overall process.

Place, publisher, year, edition, pages
Institutionen för ekonomisk och industriell utveckling, 2007
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1067
Keyword
Aircraft, morphological matrix, simulation, Saab, Gripen
National Category
Reliability and Maintenance
Identifiers
urn:nbn:se:liu:diva-11146 (URN)978-91-85643-04-2 (ISBN)
Public defence
2007-02-23, C3, Hus C, Campus Valla, Linköpings universitet, Linköping, 10:15 (English)
Opponent
Supervisors
Available from: 2008-04-01 Created: 2008-04-01 Last updated: 2009-04-08
2. On Aircraft Fuel System Conceptual Design - Conceptual Evaluation and System modeling
Open this publication in new window or tab >>On Aircraft Fuel System Conceptual Design - Conceptual Evaluation and System modeling
2004 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

THE LARGEST AND most important fluid system in an aircraft is the fuel system. Obviously, future aircraft projects involve the design of fuel system to some degree. In this project design methodologies for aircraft fuel systems are studied, with the aim to shortening the system development time.

This is done by means of illustrative examples of how optimization and the use of matrix methods have been developed and implemented at Saab Aerospace in the conceptual design of ale fuel systems. The methods introduces automation early in the development process and increase understanding of how top requirements on the ale level impact low-level engineering parameters such as pipe diameter, pump size, etc.

The thesis also discusses a systematic approach when building a large simulation model of a fluid system where the objective is to minirnize the development time by applying a strategy that enables parallel development and collaborative engineering, and also by building the mode! to the correct level of detail. By correct level of detail is meant the level that yields a simulation outcome that meets the stakeholders' expectations. The experienced gained at Saab in building a simulation model, mainly from the Gripen fuel system, but also the accumulated experience from other system models, is condensed and fitted into an overall process.

Place, publisher, year, edition, pages
Linköping: Linköpings universitet, 2004. 52 + 4 articles p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1081
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-36010 (URN)LiU-Tek-Lic-2004:10 (Local ID)91-7373-923-5 (ISBN)LiU-Tek-Lic-2004:10 (Archive number)LiU-Tek-Lic-2004:10 (OAI)
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2014-01-21Bibliographically approved

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Gavel, HampusKrus, Petter

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