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  • 1. Bylund, Nicklas
    ADRIAN: a software for computing the stiffness of automotive joints and its application in the product development process2005Inngår i: Journal of Computing and Information Science in Engineering, ISSN 1530-9827, E-ISSN 1944-7078, Vol. 5, nr 4, s. 388-393Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The development of complex mechanical structures such as a car body is an iterative process, alternating between design and analysis. Traditionally, these are made in different departments, making the loops between design and analysis slow and costly. This paper presents a method with accompanying software for the design engineer/draftsman to do preliminary mechanical analysis himself, which not only makes design loops shorter but also means they can be made in parallel. This speeds up the development process, while at the same time allowing exploration of more alternative solutions

  • 2.
    Bylund, Nicklas
    Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Produkt- och produktionsutveckling.
    Finit knutstyvhet i ramstrukturer, kopplingen optimering simulering2008Konferansepaper (Annet vitenskapelig)
  • 3. Bylund, Nicklas
    Models, methods and tools for car body development2002Licentiatavhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    The research presented in this licentiate thesis has been carried out at the advanced body engineering group at Volvo Car Corporation (VCC). The research has been done while enrolled at the Division of Computer Aided Design (CAD) at Luleå University of Technology. The research was initiated by VCC as part of the VCC industrial PhD program and in close co-operation with the CAD division at Luleå University of Technology. The research has been conducted within the ENDREA national graduate program. This licentiate thesis deals with the development of complex mechanical structures, from concept to detail design, as applied to car bodies. The role of concepts has been examined and a standardised language based on three organ types (beams, joints and panels) has been made to break down and quantify concept performance. Concept selection has been addressed with care, not to impose an off-the-shelf method, but to identify the needs of the particular situation [Paper A, Bylund, Fredricson and Thompson 02]. Efforts have been made to clarify how computer tools and analysis methods are used in product development in industry today. It has been found that the design and the analysis activities are separated. In order to speed up the development, a concurrent engineering approach is needed. This calls for integration of computer support and analysis in the development process. Based on the above findings, a new development process for car bodies has been developed, reaching from concept to detail design. A Property Based Model (PBM), [Paper B, Bylund and Eriksson 01], is built up for each concept, and represents the mechanical and spatial properties of the body concept. The PBM is constructed from organs, [Hubka, Andreasen and Eder 88], which represent requirements at a local level. The chosen organs for the car body are beams, joints and panels, [Paper B, Bylund and Eriksson]. An optimisation procedure is used to normalise the alternative concept PBM models with respect to key global requirements, e.g. global stiffness, weight, crash worthiness, etc. The normalisation assures that all concepts are on the same level of maturity. For example, a new innovative concept should not just show a fraction of its performance while an old well-known technology results in a concept close to its maximum performance. The results of the procedure are used as the basis for evaluation of the concepts. An analysis tool, ADRIAN, has been developed, tailor-made according to the broken down concept performance, and necessary in the presented process. The main feature of the tool is the possibility to transfer part of the analysis from simulation experts to design engineers, thereby increasing the simulation usage in product development. The first tests of ADRIAN in an industrial environment showed that technical issues such as analysis stability and speed are satisfied, and that the target group, the design engineers without experience of analysis, found it easy and valuable to use, which is equally important. The overall purpose is to arrive at a simulation- driven design based on requirements broken down to local level rather than a simulation-verified design. Four papers, A-D, have been included in this licentiate thesis. The first paper, "A design process for complex mechanical structures using Property Based Models, with application to car bodies", is the backbone of this thesis and describes the design process developed. The second paper, "Simulation Driven Car Body Development Using Property Based Models", describes the concept of Property Based Models (PBM) more in depth, with some examples. The third paper, "A Study of the effects of different system architectures on the development process", is of a theoretical nature and address the role of different product architectures in design. Finally the fourth paper, "ADRIAN a program for evaluating the stiffness of joints and its application in the development process", describes ADRIAN, one of the programs, for enhancing the design process proposed in the first two papers. Appended Papers Paper A BYLUND, N., FREDRICSON, H. AND THOMPSON, G.: A design process for complex mechanical structures using Property Based Models, with application to car bodies. In the proceedings to Design 2002 Conference, 14-17 of May 2002, Dubrovnik, Croatia. Paper B BYLUND, N. AND ERIKSSON, M.: Simulation Driven Car Body Development Using Property Based Models SAE paper 2001-01-3046, in proceedings to IBEC 2001. (Conference postponed to 8-12 July 2002) Paper C GRANTE, C. AND BYLUND, N.: A Study of the Effects of Different System Architectures on the Development Process. In the proceedings to Design 2002 Conference, 14-17 of May 2002, Dubrovnik, Croatia. Paper D BYLUND, N., SANDSTRÖM, H. AND SHAMLO, M.: ADRIAN: a program for evaluating the stiffness of joints and its application in the development process.

  • 4. Bylund, Nicklas
    Simulation driven product development applied to car body design2004Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    This thesis deals with the development of complex mechanical structures, from concept to detail design, as applied to car bodies. Efforts have been made to clarify how computer tools and analysis methods are used in product development in industry today. It has been found that the design and the analysis activities are separated, leading to product development that is simulation-verified rather than simulation-driven. This calls for better integration of computer support and analysis in the development process. Based on the above findings, a framework for car bodies is proposed, extending from concept to detail design. A property based model (PBM)/concept model, consisting of the following three sub- systems: beams, joints and panels, has been made to break down the requirements to sub-system level according to the design areas of the design engineers. Analysis tools have been developed and implemented, tailor-made according to the requirements at sub-system level. It has been shown that by providing design engineers with requirements according to their design area, and with corresponding analysis tools, it is possible for the design engineer to do preliminary analysis on their design in parallel with their normal design activity, leaving complete-vehicle a posteori simulation to the analysis experts. This increases the use of simulation in product development so that more solution alternatives are evaluated, leading to better design. The findings are corroborated by industrial studies, both at pilot level and full-scale. The implementation of simulation-driven design by designers is ongoing and increasing in projects at VCC. The implementation of the framework and tools has resulted in depended knowledge regarding interaction with industry and a contribution regarding how improvement of product development can be made.

  • 5. Bylund, Nicklas
    et al.
    Byström, Johan
    Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Matematiska vetenskaper.
    Persson, Lars-Erik
    Reiterated homogenization with applications to autopart construction2001Inngår i: ICCE 8: Eight Annual International Conference on Composites Engineering / [ed] David Hui, 2001, s. 31-34Konferansepaper (Fagfellevurdert)
  • 6. Bylund, Nicklas
    et al.
    Eriksson, Magnus
    Simulation driven car body development using property based models2001Inngår i: Proceedings of the IBEC 2001, International Body Engineering Conference and Exhibition: October 16 - 18, 2001, Detroit, Michigan, USA ; co-located at Cobo Center with Digital Car Conference & Exhibition, Detroit: Society of Automotive Engineers, Incorporated , 2001Konferansepaper (Fagfellevurdert)
    Abstract [en]

    A method for the development of car bodies, from conceptual to detailed design, is presented. The conceptual design is broken down to a numerical property- based model (PBM) representing the mechanical behavior of the concept. In the PBM, the local properties are balanced to fulfill the global stiffness requirements. The main topology is defined and the structural components, i.e., joints, beams and sheets are connected in predefined nodes and represented in a finite element (FE) model as super elements, beam elements and thin shell elements. In the realization of the car structure, the performance of the PBM components are used as requirements in the detailed design. Different technologies, materials and manufacturing processes can be considered as long as the properties of the component agree with the ones stated by the PBM. The detailed design of each component is made by design engineers, supported by single purpose tools. The design engineers iterate the design until only a small difference between target and component performance exists

  • 7. Bylund, Nicklas
    et al.
    Fredricson, H.
    Thompson, Graham
    A design process for complex mechanical structures using Property Based Models, with application to car bodies2002Inngår i: Design 2002: proceedings of the 7th International Design Conference, May 14 - 17, 2002, Cavtat - Dubrovnik - Croatia / [ed] Dorian Marjanovic, Zagreb: University of Zagreb , 2002Konferansepaper (Fagfellevurdert)
  • 8. Bylund, Nicklas
    et al.
    Grante, C.
    System architecture effects on design complexity2002Inngår i: Visions and values in engineering design: proceedings, NordDesign 2002 : [NordDesign 2002 Conference, August 14 - 16, 2002, NTNU, Trondheim, Norway] / [ed] Per Boelskifte, Trondheim: Department of Geography, Norwegian University of Science and Technology, 2002Konferansepaper (Fagfellevurdert)
  • 9. Bylund, Nicklas
    et al.
    Grante, Christian
    López-Mesa, Belinda
    Usability in industry of methods from design research2003Inngår i: Research for practice - innovation in products, processes and organisations: ICED 03, 14th International Conference on Engineering Design ; 19 - 21 August 2003, The Royal Institute of Technology, Stockholm / organized by the Royal Institute of Technology / [ed] Anders Folkeson, Glasgow: Design Research Society, 2003, s. 631-632Konferansepaper (Fagfellevurdert)
  • 10. Bylund, Nicklas
    et al.
    Isaksson, Ola
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Innovation och Design.
    Kalhori, Vahid
    Larsson, Tobias
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Innovation och Design.
    Enhanced engineering design practice using knowledge enabled engineering with simulation methods2004Inngår i: Design 2004: proceedings of the 8th International Design Conference, May 18 - 21, 2004, Dubrovnik - Croatia / [ed] Dorian Marjanovic, Zabreb: University of Zagreb , 2004Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The objective of this paper is to discuss how Knowledge Enabled Engineering, when combined with simulation methods is a development step for product development processes, engineering design methods and evaluation support systems. The paper opens the discussion on how these approaches, i.e. work methods, simulation support and Knowledge Enabled Engineering (KEE) methods affects best practice in engineering design (ED) by adding synthesis support to the already existing analysis support. In the presented work the authors discuss the actual state of industrial applications, with challenges and opportunities, at Volvo Car Corporation, automotive manufacturer, and Volvo Aero Corporation, jet engine component manufacturer, both operating in Sweden.

  • 11. Grante, C.
    et al.
    Bylund, Nicklas
    A study of the effects of different system architectures on the development process2002Inngår i: Design 2002: proceedings of the 7th International Design Conference, May 14 - 17, 2002, Cavtat - Dubrovnik - Croatia / [ed] Dorian Marjanovc, Zagreb: University of Zagreb , 2002Konferansepaper (Fagfellevurdert)
  • 12. Larsson, Andreas
    et al.
    Grante, Christian
    Bylund, Nicklas
    Close long-term industrial collaboration: increasing the impact of engineering design research2003Inngår i: Proceedings: 7th International research expert conference, Trends in the development of machinery and associated technology, TMT 2003 / [ed] Joan Vivancos Calvet, Zenica: Faculty of Mechanical Engineering, St Cyril & Methodius University, 2003Konferansepaper (Fagfellevurdert)
  • 13. Larsson, Andreas
    et al.
    Larsson, Tobias
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Innovation och Design.
    Bylund, Nicklas
    Isaksson, Ola
    Volvo Aero Corporation.
    Rethinking virtual teams for streamlined development2007Inngår i: Higher creativity for virtual teams: developing platforms for co-creation, Hershey, PA: Information Science Reference, 2007, s. 138-156Kapittel i bok, del av antologi (Annet vitenskapelig)
    Abstract [en]

    Drawing from experiences in automotive and aerospace development, the authors argue that it is time to radically progress our current understanding of how creativity could be introduced in organizations where factors like legal demands and contractual agreements severely restrict ‘outside-the-box' thinking, and where well-known creativity enablers such as trust, shared goals, and shared culture are becoming increasingly difficult to accomplish.

  • 14. Larsson, Andreas
    et al.
    Larsson, Tobias
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Innovation och Design.
    Isaksson, Ola
    Bylund, Nicklas
    Volvo Car Corporation.
    Rethinking virtual teams for streamlined development2008Inngår i: Virtual technologies: concepts, methodologies, tools, and applications, Hershey PA: Information Science Reference, 2008Kapittel i bok, del av antologi (Annet vitenskapelig)
    Abstract [en]

    Drawing from experiences in automotive and aerospace development, the authors argue that it is time to radically progress our current understanding of how creativity could be introduced in organizations where factors like legal demands and contractual agreements severely restrict ‘outside-the-box' thinking, and where well-known creativity enablers such as trust, shared goals, and shared culture are becoming increasingly difficult to accomplish.

  • 15.
    López-Mesa, Belinda
    et al.
    Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Produkt- och produktionsutveckling. Universitat Jaume I, Castellón, Spain.
    Bylund, Nicklas
    Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Produkt- och produktionsutveckling. Volvo Car Corporation, Gothenburg, Sweden.
    A study of the use of concept selection methods from inside a company2011Inngår i: Research in Engineering Design, ISSN 0934-9839, E-ISSN 1435-6066, Vol. 22, nr 1, s. 7-27Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Design methods have been studied by researchers for decades. Academia considers their impact on industry to be insufficient. The objective of this research is to understand the use and impact of design methods in the context of a specific company, Volvo Car Corporation (VCC), by describing the behaviour of engineers in relation to methods, to assist in the future development of design methods and tools. We mainly concentrate on concept selection methods because of their relevance in this company. The data presented is the result of qualitative research carried out during 4 years at VCC, where the authors were located as researchers. The research shows that many methods are employed besides those with an academic name, that some in-company methods used contain improvements to methods researched by academia, that some modifications to academic methods lead to unreliable results, and that there is a lack of objectivity in method modification. For these reasons, the authors suggest further research on understanding the principles of successful and unreliable modification of concept selection methods

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