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Conceptual Design Using Generic Object Inheritance
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 Management and Engineering, Machine Design. Linköping University, The Institute of Technology.
2008 (English)In: ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference: Volume 3: 28th Computers and Information in Engineering Conference, Parts A and B, New York: American Society of Mechanical Engineers, ASME , 2008, 931-941 p.Conference paper, Published paper (Refereed)
Abstract [en]

Conceptual design for complex products like aircraft and power plants requires a considerable effort since the product models become very large if they are to cover all important aspects for different stakeholders. To cope with this overall effort, designers have to rely on legacy designs and reuse, and improve the product concepts incrementally between product generations.

This paper describes a generalized inheritance mechanism we call generic object inheritance that enables quick reuse and modification of conceptual product models at any level in their hierarchical break down structures. By facilitating reuse of conceptual models of previously well studied products, more time can be spent on developing the parts that contain the edge of a new product generation. This enables keeping the modified concepts in context of a complete analyzable product model where the impact of changes can be studied without having to maintain multiple copies of the same object structures.

The paper describes how generic object inheritance is used for developing the next version of a conceptual product model of a small business jet, while reusing the essential parts of the previous version with minor modifications to design parameters and substructures.

The design and core mechanisms of generic object inheritance are briefly described, and illustrated with examples from the case study.

Place, publisher, year, edition, pages
New York: American Society of Mechanical Engineers, ASME , 2008. 931-941 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-17939DOI: 10.1115/DETC2008-49123ISI: 000263939600094ISBN: 978-0-7918-4327-7 (print)ISBN: 0-7918-3831-5 (print)OAI: oai:DiVA.org:liu-17939DiVA: diva2:213020
Conference
ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Brooklyn, New York, USA, August 3–6, 2008
Available from: 2009-04-27 Created: 2009-04-27 Last updated: 2014-09-05Bibliographically approved
In thesis
1. Aircraft Systems Modeling: Model Based Systems Engineering in Avionics Design and Aircraft Simulation
Open this publication in new window or tab >>Aircraft Systems Modeling: Model Based Systems Engineering in Avionics Design and Aircraft Simulation
2009 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Aircraft developers like other development and manufacturing companies, are experiencing increasing complexity in their products and growing competition in the global market. One way to confront the challenges is to make the development process more efficient and to shorten time to market for new products/variants by using design and development methods based on models. Model Based Systems Engineering (MBSE) is introduced to, in a structured way, support engineers with aids and rules in order to engineer systems in a new way.

In this thesis, model based strategies for aircraft and avionics development are studied. A background to avionics architectures and in particular Integrated Modular Avionics is described. The integrating discipline Systems Engineering, MBSE and applicable standards are also described. A survey on available and emerging modeling techniques and tools, such as Hosted Simulation, is presented and Modeling Domains are defined in order to analyze the engineering environment with all its vital parts to support an MBSE approach.

Time and money may be saved by using modeling techniques that enable understanding of the engineering problem, state-of-the-art analysis and team communication, with preserved or increased quality and sense of control. Dynamic simulation is an activity increasingly used in aerospace, for several reasons; to prove the product concept, to validate stated requirements, and to verify the final implementation. Simulation is also used for end-user training, with specialized training simulators, but with the same underlying models. As models grow in complexity, and the set of simulation platforms is expanded, new needs for specification, model building and configuration support arise, which requires a modeling framework to be efficient.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2009. 106 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1394
Keyword
MBSE, MBD, Avionics, Simulation
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-17573 (URN)LIU-TEK-LIC-2009:2 (Local ID)978-91-7393-692-7 (ISBN)LIU-TEK-LIC-2009:2 (Archive number)LIU-TEK-LIC-2009:2 (OAI)
Presentation
2009-03-06, Hus A, Sal A37, Campus Valla, Linköpings Universitet, Linköping, 10:15 (Swedish)
Opponent
Supervisors
Available from: 2009-04-27 Created: 2009-04-01 Last updated: 2009-04-27Bibliographically approved

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Johansson, OlofAndersson, HenricKrus, Petter

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