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Aircraft Systems Modeling Model Based Systems Engineering in Avionics Design and Aircraft Simulation ii Linköping Studies in Science and Technology Thesis No. 1394 Aircraft Systems Modeling Model Based Systems Engineering in Avionics Design and Aircraft Simulation Henric Andersson Department of Management and Engineering Division of Machine Design Linköpings universitet SE-581 83 Linköping, Sweden Linköping 2009 iii Aircraft Systems Modeling Model Based Systems Engineering in Avionics Design and Aircraft Simulation LIU-TEK-LIC-2009:2 ISBN 978-91-7393-692-7 ISSN 0280-7971 Copyright © March 2009 by Henric Andersson [email protected] www.iei.liu.se/machine Division of Machine Design Department of Management and Engineering Linköpings universitet SE-581 83 Linköping, Sweden Printed in Sweden by LiU-Tryck, Linköping, 2009 iv Abstract A IRCRAFT 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 stud- ied. A background to avionics architectures and in particular Integrated Modular Avion- ics 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 under- standing 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 ac- tivity 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. v The purpose of computing is insight, not numbers. - Richard Wesley Hamming, in the 1950’th vi Acknowledgments T HE WORK PRESENTED in this thesis has been carried out at the Division of Ma- chine Design in the Department of Management and Engineering (IEI) at Linköping University (LiU), Sweden. There are several people I would like to thank for their support and advice during the work; first I want to thank my supervisor, Professor Petter Krus, for his guidance and support. The most interesting and encouraging work during the period was when we performed the ModuLiTH (Modular Electric Vehicle) project course. I want to thank my industrial sponsors and supervisors at Saab Aerosystems: Anders Pettersson who initiated the idea of starting a research project, Stefan Andersson who got me deeply involved in the MBSE program at Saab Aerosystems and Erik Herzog for his academic view and an interesting time together in the SPEEDS project. At Machine Design in Linköping University I also want to thank Olof Johansson for encouraging support and cooperation in the NFFP project, and also Björn Lundén for his introduction to research and studies at the graduate level. For pleasant teamwork with papers, presentations and discussions in the MBSE area at Saab Aerosystems and at the Division of Machine Design, there are several people I am grateful to, among whom I would here like to mention; Bengt-Göran Sundqvist, Johan Ölvander, Anders Weitman, Sören Steinkellner, Hampus Gavel, Gert Johansson, Lars Karlsson, Ingela Lind and Ulrik Pettersson. The work has been financially supported by the ProViking research program (con- nected to the Swedish Foundation for Strategic Research), NFFP (National Aviation Engineering Research Program) and Saab Research Council. Linköping, Mach 2009 Henric Andersson vii viii Papers T HIS THESIS IS based on the following five papers, which are appended and will be referred to by their Roman numerals. The papers are printed in their originally pub- lished state except for changes in formatting and correction of minor errata. [I] Henric Andersson, Bengt-Göran Sundkvist, “Method and Integrated Tools for Efficient Design of Aircraft Control Systems”, 25th International Congress of the Aeronautical Sciences, Hamburg, Germany, September, 2006 [II] Sören Steinkellner, Henric Andersson, Petter Krus, Ingela Lind, ”Hosted Simula- tion for Heterogeneous Aircraft System Development”, 26th International Con- gress of the Aeronautical Sciences, Anchorage, Alaska, September, 2008 [III] Olof Johansson, Henric Andersson, Petter Krus, “Conceptual Design Using Ge- neric Object Inheritance”, In Proceedings of the ASME 2008 International De- sign Engineering Technical Conferences & Computers and Information in Engi- neering Conference IDETC/CIE 2008, Brooklyn, New York, August, 2008 [IV] Henric Andersson, Anders Weitman, Johan Ölvander, “Simulink as a Core Tool in Development of Next Generation Gripen”, In Proceedings of Nordic Matlab User Conference 2008, Stockholm, Sweden, November, 2008 [V] Henric Andersson, Erik Herzog, Gert Johansson, Olof Johansson, “Experience from introducing UML/SysML at Saab Aerosystems”, Submitted to for publish- ing in Journal of Systems Engineering, INCOSE. Out of the five papers, Andersson is the main contributing author of papers [I] and [IV]. ix x
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