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Strategy for Modeling of large A/C fluid systems
Linköping University, Department of Management and Engineering, Machine Design. Linköping University, The Institute of Technology. Saab Aerospace, Sweden.
Saab Aerospace, Sweden.
Saab Aerospace, Sweden.
Saab Aerospace, Sweden.
Show others and affiliations
2004 (English)In: World Aviation Congress and Display, WAC-04, SAE Technical Paper 2004-01-3093, 2004, 1495-1506 p.Conference paper, Published paper (Refereed)
Abstract [en]

There is an ongoing trend in the European Military a/c industry towards cooperation between nations when purchasing and between manufacturers when developing and producing a/c. Different manufacturers at different locations develop different parts or sub-systems. When using this approach a vital part of a fast and precise system evaluation is the use of simulation models. In order to stay competitive it is not only sufficient to be able to build large simulation models but also to do it fast.

This paper describes the conclusions regarding a modelling strategy of large fluid systems drawn from the building of a simulation model of the JAS 39 Gripen fuel system. An overall process is suggested into which the activities of building a model are fitted. This is however not the main objective; it is more important to identify the different issues and activities at the engineering level. If these are properly dealt with, the model development time will be reduced, if not, the wrong model may be designed. "Wrong" here means a model that does not do the job, or solves a problem other than the one intended by the stakeholder.

Place, publisher, year, edition, pages
2004. 1495-1506 p.
Series
SAE technical paper series, ISSN 0148-7191 ; 3093
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-12981DOI: 10.4271/2004-01-3093OAI: oai:DiVA.org:liu-12981DiVA: diva2:17585
Conference
World Aviation Congress and Display, WAC-04, 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, HampusSteinkellner, SörenKrus, PetterAndersson (Ölvander), Johan

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