hh.sePublications
Change search
Refine search result
1 - 17 of 17
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    Bolmsjö, Gunnar
    et al.
    Division of Machine Design, Department of Design Sciences LTH Lund University, Lund, Sweden.
    Petersson, Håkan
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg). Division of Machine Design, Department of Design Sciences LTH Lund University, Lund, Sweden.
    Bjärnemo, Robert
    Division of Machine Design, Department of Design Sciences LTH Lund University, Lund, Sweden.
    Robot assisted framing: A concept for securing geometry in flexible production2008Report (Refereed)
    Abstract [en]

    The paper describes a concept for securing the geometry in flexible production based on robot assisted framing. This uses the robot(s) as an active device during change-over between product variants and it is assumed that product variants can be produced in any mixed order. The case under study is cabs for trucks which in traditional production require large and heavy equipment which is above the payload of any robot. The idea within this study is to use carbon fibre composites in the fixtures in order to reduce the weight and through this make it possible to use the robots in assisting the framing process. The current work involves a generalization of the principle both considering the design of the fixtures with respect to issues such as materials properties and design principles, and design of the production system.

     

  • 2.
    Eriksson, Martin
    et al.
    Validus Engineering AB, Staffanstorp, Sweden.
    Bjärnemo, Robert
    Department of Design Sciences LTH, Lund University, Lund, Sweden.
    Motte, Damien
    Department of Design Sciences LTH, Lund University, Lund, Sweden.
    Petersson, Håkan
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Integrating Engineering Design and Design Analysis Activities at an Operational Level2017In: Proceedings of the 11th International Workshop on Integrated Design Engineering / [ed] Meyer, A., Schirmeyer, R. & Vajna, Sandor, Magdeburg, 2017, Vol. 11, p. 69-80Conference paper (Refereed)
    Abstract [en]

    Computer-based design analysis is nowadays of utmost importance in most engineering design projects. However, this brings some challenges, among them that of the collaboration between engineering designers and design analysts. Since they work with, and are responsible for, different areas, they do not necessarily have full insight into each other’s way of working. The issue of integration between the design analysis process and the engineering design process is thus of major significance for providing an increase in efficiency and effectiveness in engineering design and development of products. In this work, an approach is proposed aiming at providing this increase in efficiency and effectiveness. Based on the analysis of the information workflow between the engineering design process and the design analysis process, a mapping of the necessary interactions between engineering designers and design analysts can be made. The presented approach facilitates this mapping. An application of this approach to an industrial project is also presented.

  • 3.
    Eriksson, Martin
    et al.
    Faculty of Engineering (LTH), Lund University, Lund, Sweden.
    Bjärnemo, Robert
    Faculty of Engineering (LTH), Lund University, Lund, Sweden.
    Petersson, Håkan
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg).
    Motte, Damien
    Faculty of Engineering (LTH), Lund University, Lund, Sweden.
    A process model for enhanced integration between computer-based design analysis and engineering design2016Manuscript (preprint) (Other academic)
    Abstract [en]

    The findings from a survey in industry and from an extensive literature survey revealed the need for the development of an integrated process model for computer-based design analysis (CBDA) facilitating the interactions in the engineering design process in mechanical engineering on an operational level. CBDA is here confined to the utilization of advanced computational methods and tools from computer aided engineering (CAE), such as computational structural mechanics (CSM), computational fluid dynamics (CFD) and multi-body systems (MBS). In order to facilitate integration to the multitude of engineering design process models in industrial practice, including overall processes such as product innovation and product development, the process model needs to be adaptive and generic. Generic should here be interpreted as not being dependent on any specific type of product, engineering design process, or on any specific type of product innovation and/or product development process models utilized by an enterprise. Resulting from synthesis processes based on the findings from surveys and experiences gained from design analysis projects in industrial practice, the generic design analysis process (GDA) model was developed. The application of the GDA process model is exemplified by four examples, which have been utilized for validation of the process model.

  • 4.
    Eriksson, Martin
    et al.
    Lund University, Lund, Sweden.
    Petersson, Håkan
    Lund University, Lund, Sweden.
    Bjärnemo, Robert
    Lund University, Lund, Sweden.
    Motte, Damien
    Lund University, Lund, Sweden.
    Interaction between Computer-Based Design Analysis Activities and the Engineering Design Process – An Industrial Survey2014In: DS 77: Proceedings of the DESIGN 2014 13th International Design Conference / [ed] Dorian Marjanović, Mario Štorga, Neven Pavković & Nenad Bojčetić, Zagreb: University of Zagreb , 2014, Vol. 2, p. 1283-1296Conference paper (Refereed)
    Abstract [en]

    In the large majority of product development projects, computer-based design analyses are performed to assess the feasibility of potential technical solutions. As a first step to bring about a deeper understanding of the interactions between the engineering design and the design analysis activities, a survey has been performed in industry. The results of the survey cover: the use of design analysis within product development, the interactions of engineering design along the design analysis process, and the treatment of uncertainties and errors connected to the design analysis activities.

  • 5.
    Eriksson, Martin
    et al.
    Validus Engineering AB, Staffanstorp, Sweden.
    Petersson, Håkan
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Motte, Damien
    Faculty of Engineering (LTH), Lund University, Lund, Sweden.
    Bjärnemo, Robert
    Faculty of Engineering (LTH), Lund University, Lund, Sweden.
    Utilizing the Generic Design Analysis (GDA) Process Model within an Extended Set of Design Analysis Contexts2017In: Proceedings of the ASME 2017 International Mechanical Engineering Congress & Exposition: IMECE2017, New York: ASME Press, 2017, article id V011T15A028Conference paper (Refereed)
    Abstract [en]

    In most industrial product development projects, computer-based design analysis, or simply design analysis, is frequently utilized. Several design analysis process models exist in the literature for the planning, execution and follow-up of such design analysis tasks. Most of these process models deal explicitly with design analysis tasks within two specific contexts: the context of design evaluation, and the context of design optimization. There are, however, several more contexts within which design analysis tasks are executed. Originating from industrial practice, four contexts were found to represent a significant part of all design analysis tasks in industry. These are:

    1. Explorative analysis, aiming at the determination of important design parameters associated with an existing or predefined design solution (of which design optimization is a part).

    2. Evaluation, aiming at giving quantitative information on specific design parameters in support of further design decisions.

    3. Physical testing, aiming at validating design analysis models through physical testing, that is, determining the degree to which models are accurate representations of the real world from the perspective of the intended uses of the models.

    4. Method development, that is the development, verification and validation of specific guidelines, procedures or templates for the design analyst and/or the engineering designer to follow when performing a design analysis task.

    A design analysis process model needs to be able to deal with at least these four. In this work, a process model named the generic design analysis (GDA) process model, is applied to these four contexts. The principles for the adaptation of the GDA process model to different contexts are described. The use of the GDA process model in these contexts is exemplified with industrial cases: explorative analysis of design parameters of a bumper beam system, the final physical acceptance tests of a device transportation system (collision test, drop test, vibration test), and the method development of a template for analyzing a valve in a combustion engine. The "Evaluation" context is not exemplified as it is the most common one in industry.

    The GDA process model has been successfully used for the four contexts. Using the adaptation principles and industrial cases, the adaptation of the GDA process model to additional contexts is also possible. © 2017 by ASME

  • 6.
    Motte, Damien
    et al.
    Lund University, Lund, Sweden.
    Eriksson, Martin
    Lund University, Lund, Sweden.
    Petersson, Håkan
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg).
    Bjärnemo, Robert
    Lund University, Lund, Sweden.
    Integration of the computer-based design analysis activity in the engineering design process – A literature survey2014In: Tools and methods of competitive engineering: proceedings of the tenth International Symposium on Tools and Methods of Competitive Engineering - TMCE 2014, May 19-23, Budapest, Hungary, Vol. 2 / [ed] Imre Horváth & Zoltán Rusák, Delft: Delft University of Technology , 2014, p. 1181-1194Conference paper (Refereed)
    Abstract [en]

    Computer-based design analysis is nowadays a common activity in most development projects. Used for design evaluation, verification, validation, or as a support for design exploration, it fulfils an important support function for the engineering designer, thus making it essential to have an operationally efficient and effective integration between both the engineering design and design analysis activities in the overall development project. In this area, most works are focusing on software (mainly CAD/CAE) integration, but not on the integration between computer-based design analysis and engineering design at the process level or on the collaboration between the engineering designer and the design analyst. This paper presents a review of the literature on that specific topic, namely the integration of the computer-based design analysis activity in the engineering design process. Different research topics are identified and elaborated upon: integration in general process models; recommendations for the different analysis steps; analysis early in the engineering design process; integration of design analysis in the engineering designer's work; alternative usages of design analysis in the engineering design process; and others, such as recommending guidelines instead of process models, quality assurance aspects, education, and implementation issues. Some neglected aspects were also identified. Among others, there is a lack of research into the so-called technology development (development of design analysis procedures and guidelines), and a need for emphasis on uncertainties, both coupled with the design analysis activity.

  • 7.
    Motte, Damien
    et al.
    Faculty of Engineering LTH, Lund University, Lund, Sweden.
    Petersson, Håkan
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg).
    Eriksson, Martin
    Faculty of Engineering LTH, Lund University, Lund, Sweden.
    Bjärnemo, Robert
    Faculty of Engineering LTH, Lund University, Lund, Sweden.
    Development of a computer-aided fixture design system for lightweight grippers in the automotive industry2016In: International Journal of Design Engineering, ISSN 1751-5874, Vol. 6, no 3, p. 237-261Article in journal (Refereed)
    Abstract [en]

    The need for dedicated fixtures for flexible manufacturing systems is increasing, as dedicated fixtures are lighter, more compact and, more accurate than flexible fixtures. The main challenges are that parts and processes are more and more complex, which requires designing novel or complex dedicated fixtures, and that, for one given flexible fixture to be replaced, several variants of such dedicated fixtures must be designed to hold a variety of individual parts, without imposing increased costs and delays. The systematic fixture design method and computer-aided design fixture system (CAFDS) developed and applied for the presented industrial case—novel design of lightweight (carbon fibre composite) robot grippers—is a possible approach to address these issues.

  • 8.
    Petersson, Håkan
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg). Maskinkonstruktion, Institutionen för designvetenskaper LTH Lunds Universitet, Sverige.
    Kriterieframtagningsformulär för lyfthjälpmedel inom bilindustrin2008Report (Other academic)
    Abstract [en]

    This technical report is part of the work that is performed under a MERA project, L-FAM II. Between 2006 and 2008 this was a part of a research project between Volvo AB, VINNOVA, Flex Prop AB, Halmstad University and Lund University. L-FAM II was the name of the project and it was to help the industry to facilitate flexible lifting aids for their chassis-building. Criterion is an important part in this project since some of those controls with the accuracy of the finished product will receive. This accuracy is reflected immediately when the product goes into production where it must secure the geometry of products for the welding of body components and cabins.

    In this project, carbon fiber materials have been an important part. The advantage of carbon fiber is its low weight in relation to its stiffness. The cost of the material is not in its favor.

    The lifting devices that means here are constructed based on these criteria and are already in production. The system has been named NBT2 and is a patented solution in which ABB is the owner of the patent. The patent describes the method and process of how NBT2 is constructed and are described more in paten document No. WO 01/94191 A1.

    20 different criteria have been developed which have also been approved by the project stakeholders. A survey was done early in the project where we consulted a number of people who have good insight into the product. The criteria are only part of the work of what WP1 will perform where the goal is a completed computer-based design systems. The report includes a description of what this computer based design system will perform. The various digital tools and utilities that will be used are explained in the report.

    There are still information missing from the rest of the WP inside the project which has force Wp1 to perform a series of tensile tests where the goal is to find a template for how to use materials from product geometric design. The goal is that this computer-based design system should be ready in late 2010.

  • 9.
    Petersson, Håkan
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Mesh-Less Analysis of Products: A Revolution within Computer Based Design Analysis2019In: Proceedings of the ASME 2019 International Mechanical Engineering Congress and Exposition  (IMECE2019): November 11-14, 2019, Salt Lake City, UT, USA, 2019, Vol. 1, article id 11550Conference paper (Refereed)
    Abstract [en]

    For many years, FEA (finite element analysis) has been the dominant way of evaluating the mechanical properties of products. Engineers and design analysts are well familiar with the technology, and it is used for a lot of different types of phenomena. It is not easy to use FEA as it requires a lot of knowledge and skills for the analysis to be successful. One of the many problems is that it quickly becomes a large model with a large number of equations that have to be solved. A computer with a large internal memory, a fast CPU and fast hard disk drives is expensive to purchase and to keep up to date.

    Another problem is when thin-walled solids have to be analyzed. You usually need 2-3 elements in thickness to be able to obtain all stresses, which requires a lot of elements and nodes and makes the computations large or even too large. To solve these types of problem, a conversion to surfaces has to be made, where 2D shell elements may be used. Converting solids to surfaces can be demanding and time-consuming. It is a compromise, but it is solvable as a 2D model. As we all know, all body-in-white, e.g., automotive and aerospace industry, is analyzed by this method.

    A new type of software has recently reached the market, mesh-less design analysis, which makes it possible to perform design analysis in all kind of solids, very quickly and by using much less solving time and computer power. As this type of software doesn’t mesh the geometry, much time can be saved both on the geometry but also on waiting time for the problem to be solved. The main question is, “is it too good to be true”?

    In this paper, the focus is on comparing two types of design analysis software, traditional FEA, and mesh-less design analysis. Different samples of design problems have been analyzed and compared; results and conclusions are reported. © 2019 by ASME

  • 10.
    Petersson, Håkan
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Optimizing Products and Production Using Additive Manufacturing by Introducing Bionics into the Engineering Design Process2017In: ASME 2017 International Mechanical Engineering Congress and Exposition, New York: ASME Press, 2017, article id V011T15A017Conference paper (Refereed)
    Abstract [en]

    In order to perform engineering design activities aiming at the design of new or redesign of existing products, a number of alternative processes, methods and techniques are available in the literature to the engineering designer/product developing enterprise. These processes, methods and techniques, are usually not explicitly expressed in terms of directives as to when and how they are to be used in the actual design of the product-to-be.

    An important goal in product development of today is to fulfill the terms for sustainable development, thus emphasizing the need to develop products which are not overexploiting the available resources provided by nature. By utilizing an approach to development and design based on bionics, i.e. utilizing biological methods and systems found in nature as a means of creating technical solutions, a conceptual framework is provided which is especially fit to accommodate the striving for sustainability.

    Striving for lightweight designs provides a significant potential to reduce the energy consumption of the product-to-be, which at present is a highly prioritized goal within sustainable development. Up until now, the dominating approach to lightweight designs has been to utilize lightweight materials such as different types of composites and metallic materials such as aluminum, magnesium and titanium.

    By introducing biomimicry into the engineering design process, an additional step towards efficient lightweight design solutions might be within reach. Since the objects created by nature are independent of costs and time, these are most often very complex especially regarding shapes and dimensions. In order to match these constraints in the creation of technical solutions (products), it is necessary to utilize optimization in combination with a flexible manufacturing process. The ideal manufacturing method to meet these demands is Additive Manufacturing (AM), though, at least for the time being, it imposes some constraints in size, costs etc. of the product to be manufactured.

    If the product designed is to be suitable for manufacturing for AM, it must be optimized, and so must the way it is to be processed. Therefore three of the most essential problems which need to be addressed in order to efficiently utilize AM are also elaborated upon and reported in the paper.

    The first of these problems is how to optimize the product-to-be. The second is to establish the orientation in which the product is to be manufactured during the AM process. The third is to find the best usage of the support material in the 3D printer, as there is no optimized process available for this activity. This is mainly due to the difficulties to foresee the waste of building material as, in most cases, this material can only be used once.

    In this paper, a process for the design and development of new products is proposed. The application of the process also includes essential elements to assure an efficient use of AM as mentioned above. The process is established on the basis of an integration of the Biomimicry Design Spiral, Bionic Structures and Elements and optimization into the Engineering Design Process. The utilization of the process is demonstrated by an application and reported in the form of a modified engineering design process — the Engineering Design and Biomimicry Design Process or the EDBP process for short.

    Copyright © 2017 by ASME

  • 11.
    Petersson, Håkan
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg). Faculty of Engineering LTH, Lund University, Lund, Sweden.
    Template-Based Design Analysis: An Alternative Approach for the Engineering Designer to Perform Computer-Based Design Analysis2016Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The current trend in industry to encourage engineering designers to take an active part in the analysis of their own design solutions is apparent in many companies today, domestically as well as abroad.

    From a research project with the objective to develop a computer-based design system for the design of lightweight grippers, one of the major difficulties was to overcome the system users’ lack of knowledge and experience in the design of lightweight structures and Computer-Based Design Analysis (CBDA). CBDA here refers to the use of analysis tools such as Finite Element Analysis (FEA) and computer-based structural optimization. In order to handle these difficulties, the author introduced the use of templates. In the given context, a template refers to an especially preformatted code, which contains the implemented information/knowledge necessary to perform a specific task on an operational level. It should be noted that the use of templates as a means of support in performing a specific design or analysis task is not a new phenomenon in industrial practice. Inspired by the opportunities provided by the template approach, the main objective set out for the thesis project was to facilitate the active participation of the engineering designers in performing CBDA singlehandedly, or in any other organizational setting, by utilizing a Template-Based Design Analysis (TBDA) approach, as an integrated part of their activities within the engineering design process.

    The evolutionary research approach for the development of the TBDA approach is based on surveys in Swedish as well as international industry, literature surveys, the development of a Generic Design Analysis (GDA) process model (facilitating integration of the activities between CBDA and engineering design) and a number of demonstrator projects to deepen the insights into TBDA. Note that as the TBDA approach is intended for use in industrial practice, the approach is independent of specific engineering design and product development processes utilized in industry.

    The conclusion of the thesis work clearly supports the claim that TBDA is not only a competitive approach to current alternatives in supporting the engineering designers performing CBDA, but also of a complementary nature providing functionality not included in the alternative approaches currently used in industrial practice.

  • 12.
    Petersson, Håkan
    et al.
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg).
    Eriksson, Martin
    Division of Machine Design, Department of Design Sciences, LTH, Lund University, Sweden.
    Motte, Damien
    Division of Machine Design, Department of Design Sciences, LTH, Lund University, Sweden.
    Bjärnemo, Robert
    Division of Machine Design, Department of Design Sciences, LTH, Lund University, Sweden.
    A process model for the design analysis clarification task2012In: Proceedings of 9th NordDesign Conference / [ed] Kyvsgaard Hansen, P.; Rasmussen, J.; Jörgensen, K.; Tollestrup, C., Aalborg & Glasgow: Aalborg University & University of Strathclyde , 2012, p. 494-501Conference paper (Refereed)
    Abstract [en]

    Many product development projects nowadays use computer-aided engineering systems in the analysis of product proposals. It is therefore important to appropriately integrate the analyses activities in the product development process. One important aspect of this integration is how to handle the initiation of the task: identifying the need, planning the task and its monitoring, and communicating it to the analyst. To that end, this paper proposes and illustrates a product development process model that aims to efficiently and effectively prepare a design analysis task.

  • 13.
    Petersson, Håkan
    et al.
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg).
    Motte, Damien
    Department of Design Sciences LTH Lund University, Lund, Sweden.
    Bjärnemo, Robert
    Department of Design Sciences LTH Lund University, Lund, Sweden.
    Carbon Fiber Composite Materials in Modern Day Automotive Production Lines – A Case Study2013In: ASME 2013 International Mechanical Engineering Congress and Exposition: Volume 2A: Advanced Manufacturing, New York: ASME Press, 2013, article id V02AT02A037Conference paper (Refereed)
    Abstract [en]

    New and innovative production equipment can be developed by introducing lightweight materials in modern day automotive industry production lines. The properties of these new materials are expected to result in improved ergonomics, energy savings, increased flexibility and more robust equipment, which in the end will result in enhanced productivity. Carbon composite materials are one such alternative that has excellent material properties. These properties are well documented, and the market for carbon composite materials is growing in many areas such as commercial aircrafts, sporting goods and wind turbines. However, when studying the use of carbon composite materials for production equipment in the automotive industry, it was found that there were few, if any, such examples.

    This paper focuses on innovative ways of making carbon composite materials available for designing automotive industry production equipment by introducing a design and material concept that combines flexibility, relatively low costs and high functionality. By reducing the weight by 60%, it was obvious that the operators were very positive to the new design. But just as important as the improvement of the ergonomic feature, the combination of low weight and material properties resulted in a more robust design and a more stable process of operation. The two main designs (two versions of the steel-based design were constructed) were developed sequentially, making it difficult to compare development costs since knowledge migrated from one project to the next. In this study, the gripper was manufactured in both carbon composite material and steel. The different designs were compared with reference to design costs, functionality, robustness, product costs and ergonomics. The study clearly shows that the composite material represents a favorable alternative to conventional materials, as the system combines superior properties without significantly increasing the cost of the equipment. This paper describes the approach in detail. Copyright © 2013 by ASME

  • 14.
    Petersson, Håkan
    et al.
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg).
    Motte, Damien
    Lund University, Lund, Sweden.
    Bjärnemo, Robert
    Lund University, Lund, Sweden.
    Using Templates To Support The Engineering Designer Performing Computer-Based Design Analysis2015In: ASME 2015 International Mechanical Engineering Congress and Exposition: November 13-19, 2015, Houston, Texas, USA, New York: ASME Press, 2015, Vol. 11, article id V011T14A002Conference paper (Refereed)
    Abstract [en]

    In their quest for a more efficient and effective utilization of the resources allocated to engineering design projects, and thus to the overall product development project from which the current design task(s) originate, an increasing number of companies allow engineering designers to perform Computer-Based Design Analysis (CBDA) on their own – CBDA is here confined to quantitative analyses using finite element-based structural and thermal analyses, Computational Fluid Dynamics, and Multi-Body Systems. Since all of these tools require a certain level of expertise in order to be successfully utilized in industrial practice, the types of analyses performed by the engineering designers are confined to simple, straightforward ones.

    In striving for an increase of the individual engineering designer’s possibilities to actively participate in CBDA in industrial practice, an online survey has been carried out and reported in [1]. The main objective set out for this survey was to give an overview of the current situation in the global industry regarding CBDA-tasks being performed by engineering designers, what positive effects it might present to the industry and how it should be implemented for best result. Resulting from this survey, one new support, Template Based Design Analysis (TBDA), singled out as very promising for future development. TBDA is a support to be used in engineering design analyses based on the utilization of the advanced features provided by high-end Computer Aided Design (CAD)/Computer Aided Engineering (CAE) software in supporting, guiding as well as monitoring the design analysis performed by the engineering designer. It was also found that TBDA was gradually being introduced in some industrial companies.

    Since TBDA is still in its infancy, substantial development needs to be invested in it to make it the full-blown support needed in industrial practice. To be able to contribute to the development of TBDA, it is essential to acquire knowledge about how companies, both national and international, are planning to introduce and utilize TBDA in industrial practice.

    To that end a new online survey has been carried out, focusing on the introduction and benefits associated with TBDA. Out of a total of 64 respondents, 41 of the these were selected from the previous survey [1] and 23 came from companies known to the authors to utilize CBDA on a regular basis; these 23 were invited to participate in the interviews and as a first step, before carrying out the interviews, all of them were requested to answer the survey. 42 of them, from 17 countries, completed the online-survey. In addition to this survey, 5 Swedish companies, all utilizing CBDA on a regular basis, were participating in qualitative interviews. The main objective was to get an in-depth view on the use of engineering designers performing CBDA as well as an indication on the validity of the responses obtained in the online survey by comparing the results from the interviews and the companies response to the online survey – all companies interviewed answered the online survey in advance before the interviews were carried out.

    The introduction of TBDA in an industrial setting has resulted in many advantages, such as shorter lead times, opportunities to generate more concept candidates, and increased collaboration between the engineering designers and the design analysts, all of them contributing to more mature technical solutions. Three different automation levels of TBDA have also been identified and accounted for as well as being exemplified. In the companies in which TBDA has not been implemented, some of the reasons for not doing so are high costs, company policy, and the lack of knowledge and experience on the part of the engineering designer. This paper presents the results both from the new online survey as well as from the interviews. © 2015 by ASME

  • 15.
    Petersson, Håkan
    et al.
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg).
    Motte, Damien
    Faculty of Engineering (LTH), Lund University, Lund, Sweden.
    Bjärnemo, Robert
    Lund University, Lund, Sweden.
    Eriksson, Martin
    Lund University, Lund, Sweden.
    The Engineering Designer in the Role of a Design Analyst – An Industrial Survey2015Conference paper (Refereed)
    Abstract [en]

    Traditionally, design analysts are solely responsible for all computer-based design analysis (CBDA). CBDA refers to quantitative design analyses utilizing computational tools in the engineering design and development of technical solutions. There are currently limited insights into and knowledge of tools and methods needed to facilitate the use of CBDA by engineering designers. In order to gather information on this aspect of CBDA, an industry survey has been performed. 77 persons completed the survey (16% affiliated to NAFEMS) open for twelve weeks during October-December, 2014. Around 35% answered that within their companies CBDA is used by engineering designers, and 28% of those who are not currently doing so expect to do so in the future. Linear static analysis is the most frequent type of analysis performed by engineering designers. The benefits put forward by the respondents in favor of involving engineering designers in CBDA are: it allows early evaluation of concept candidates, shortens lead time, frees resources for the analysis department, and reduces costs. 26% of the respondents answered that there is resistance from the analysis department against allowing engineering designers to perform CBDA, 19% within the engineering design department are also against this involvement and 26% answered that there has been no problem associated with this involvement. Even though the engineering designer performs CBDA on his/her own, supervision (56%) and quality assurance of the analysis results (59%) is the responsibility of the design analysts. This is also the case regarding the development of tools and methods to be used by the engineering designers as well as instruction and training of the engineering designers.

  • 16.
    Petersson, Håkan
    et al.
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg).
    Motte, Damien
    Division of Machine Design, Department of Design Sciences LTH, Lund University, Lund, Sweden.
    Eriksson, Martin
    Division of Machine Design, Department of Design Sciences LTH, Lund University, Lund, Sweden.
    Bjärnemo, Robert
    Division of Machine Design, Department of Design Sciences LTH, Lund University, Lund, Sweden.
    A Computer-Based Design System For Lightweight Grippers in The Automotive Industry2013In: Proceedings of the ASME International Mechanical Engineering Congress and Exposition--2012: presented at ASME 2012 International Mechanical Engineering Congress and Exposition, November 9-15, 2012 Houston, Texas USA, New York: ASME Press, 2013, Vol. 3, p. 169-179Conference paper (Refereed)
    Abstract [en]

    This paper presents the development as well as the architecture of a computer-Aided dedicated fixture design system intended to support the design of lightweight (carbon fiber composite) grippers for a major truck company. Lightweight grippers were required due to the increasing production rates in the automotive industry. The current robotic equipment was facing diverse problems during transportation and aligning of the parts, problems related to mass inertia, accuracy and stability. Moreover, the increased demands for truck customization and fast release of new product versions required a computer-based support for the design of the appropriate fixtures. This application is believed to be of interest for fixture research because the design of such complex fixtures is likely to appear more and more often. Specifically, such fixtures are subject to specific requirements that necessitate a systematic requirement elicitation method; they also require extensive conceptual design work as well as careful analysis activity planning. The main steps requisite for the development of the design system are reported: setup planning, fixture planning, conceptual design of the gripper. The architecture, the process and the constituent elements of the design system are also described and illustrated. Copyright © 2012 by ASME.

  • 17.
    Petersson, Håkan
    et al.
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg).
    Motte, Damien
    LTH Lund University, Lund, Sweden.
    Eriksson, Martin
    LTH Lund University, Lund, Sweden.
    Bjärnemo, Robert
    LTH Lund University, Lund, Sweden.
    Integration of Computer Aided Design Analysis into the Engineering Design Process for use by Engineering Designers2013In: ASME 2013 International Mechanical Engineering Congress and Exposition: Volume 12: Systems and Design, New York: ASME Press, 2013, Vol. 12Conference paper (Refereed)
    Abstract [en]

    When developing products, engineering designers often face the problem that their candidate for a technical solution, ranging from a concept to a detailed design, needs to be analyzed by a design analyst before it is approved or rejected and the engineering designer can continue his/her activities within the product development process. If engineering designers have to send every solution candidate to a design analyst, a lot of time and money is lost. To avoid this, some Swedish companies have started to allow their engineering designers to use the analysis capabilities imbedded in modern CAD/CAE software.

              In the literature on product development and on computer based design analysis (CBDA) both processes are fairly well described. However, this cannot be said about the interaction between the two processes. This is a growing issue as it represents core knowledge for developing efficient and effective integration concepts, which in turn can be developed into likewise efficient and effective approaches on how to assist the engineering designer to perform parts of the CBDA process on his/her own. Note that when we refer to CBDA here, this is confined to the use of FEM in the development of products, primarily based on working principles originating from the area of Mechanical Engineering.

              Since we have been working on a process model for the integration between engineering design and design analysis, this has inspired us to utilize findings from these efforts to propose a conceptual model for a design analysis process driven by the engineering designer to be integrated into the product development process.

              The proposed design analysis process model is based on the use of predefined analysis methods or templates. Templates are also utilized for QA (Quality Assurance) and monitoring of the analysis activities. Responsible for the development of the analysis methods and the templates are expert design analysts, who develop these tools within a technology development process. Before allowing the engineering designers access to them, these tools need to be approved by relevant bodies within the industrial enterprise and/or by external sources such as those responsible for certification and risk management.

              In this paper we present the development of the proposed integrated design analysis process model and an industrial case study, which incorporates a non-linear design analysis activity, utilizing the FEM-program Abaqus within the CAD-software Catia V5 and its imbedded optimization module.

    Copyright © 2013 by ASME

1 - 17 of 17
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf