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Heikkinen, T., Stolt, R. & Elgh, F. (2020). Incorporating Design for Additive Manufacturing in Multidisciplinary Design Automation – Challenges Identified. Computer-Aided Design and Applications, 17(5), 936-947
Open this publication in new window or tab >>Incorporating Design for Additive Manufacturing in Multidisciplinary Design Automation – Challenges Identified
2020 (English)In: Computer-Aided Design and Applications, ISSN 1686-4360, Vol. 17, no 5, p. 936-947Article in journal (Refereed) Published
Abstract [en]

One interesting method to take advantage of the particular capabilities of Additive Manufacturing is to utilize a combination of lattice-structures and topology optimization. This paper presents the results and experiences from attempting to incorporate these in an existing multidisciplinary design automation system within the aerospace industry. A combined state of art and practice is outlined with discussions regarding challenges in current commercial CAD tools, multidisciplinary design automation, and with respect to aerospace requirements.

Place, publisher, year, edition, pages
C A D Solutions, 2020
Keywords
Design for Additive Manufacture, Multidisciplinary Design Automation, Lattice-based structural Topology Optimization
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-47384 (URN)10.14733/cadaps.2020.936-947 (DOI)2-s2.0-85078981837 (Scopus ID)
Available from: 2020-01-14 Created: 2020-01-14 Last updated: 2020-02-19Bibliographically approved
Heikkinen, T., Johansson, J. & Elgh, F. (2020). Multidisciplinary design automation – A conceptual framework for working with product model extensions. International Journal of Agile Systems and Management, 13(1), 28-47
Open this publication in new window or tab >>Multidisciplinary design automation – A conceptual framework for working with product model extensions
2020 (English)In: International Journal of Agile Systems and Management, ISSN 1741-9174, Vol. 13, no 1, p. 28-47Article in journal (Refereed) Published
Abstract [en]

Design automation can be used to support efficient information handling and knowledge processing in computer-based product modelling, as well as make possible new design exploration and optimisation capabilities. To be able to utilise and manage design automation systems over time, it is important to understand how the disciplinary methods and models are dependent on each other through the product model constituents and then how these relations should be built to support maintenance, leveraging and future reuse. Awareness of the concrete representation of relations could support the system's traceability and transparency, and depending on the chosen technique, comprehension and extendability can be affected. This paper presents a conceptual framework for how a set of product model constituents are, can and to some extent, should be extended to define relations in multidisciplinary design automation systems.

Place, publisher, year, edition, pages
InderScience Publishers, 2020
Keywords
multidisciplinary design automation, system relations, extended product model
National Category
Software Engineering
Identifiers
urn:nbn:se:hj:diva-48007 (URN)10.1504/IJASM.2020.105866 (DOI)2-s2.0-85082331624 (Scopus ID)PP JTH 2019 embargo 12 (Local ID)PP JTH 2019 embargo 12 (Archive number)PP JTH 2019 embargo 12 (OAI)
Available from: 2020-03-23 Created: 2020-03-23 Last updated: 2020-04-23Bibliographically approved
Stolt, R., Elgh, F. & Heikkinen, T. (2019). Design and Evaluation of Aerospace Components for SLM. In: K. Hiekata, B. Moser, M. Inoue, J. Stjepandić & N. Wognum (Ed.), K. Hiekata, B. Moser, M. Inoue, J. Stjepandić & N. Wognum (Ed.), Transdisciplinary engineering for complex socio-technical systems: Proceedings of the 26th ISTE International Conference on Transdisciplinary Engineering, July 30 – August 1, 2019. Paper presented at 26th ISTE International Conference on Transdisciplinary Engineering, held at the University of Tokyo, Kashiwa Campus, July 30 – August 1, 2019, Japan (pp. 147-156). Amsterdam: IOS Press
Open this publication in new window or tab >>Design and Evaluation of Aerospace Components for SLM
2019 (English)In: Transdisciplinary engineering for complex socio-technical systems: Proceedings of the 26th ISTE International Conference on Transdisciplinary Engineering, July 30 – August 1, 2019 / [ed] K. Hiekata, B. Moser, M. Inoue, J. Stjepandić & N. Wognum, Amsterdam: IOS Press, 2019, p. 147-156Conference paper, Published paper (Refereed)
Abstract [en]

Currently, the additive manufacturing process SLM (selective laser melting) is of high interest in the aerospace industry for the manufacture of jet engine components. This is driven by several factors such as reducing weight and minimizing the variation in the manufacturing process. In the paper, the state of practice in designing SLM parts is examined showing that there is plenty of opportunity to adapt designs to the process. However, this is often too time consuming in the early stages. By examining the state of art in SLM part design, the paper and identifies the variant specific cost drives that are proposed to be used to rank the manufacturability of different design alternatives for turbine frame aerospace components.

Place, publisher, year, edition, pages
Amsterdam: IOS Press, 2019
Series
Advances in Transdisciplinary Engineering, ISSN 2352-751X, E-ISSN 2352-7528 ; 10
Keywords
SLM, Additive Manufacturing, Aerospace, Design for Additive Manufacturing, DFAM, Manufacturability
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-46844 (URN)10.3233/ATDE190119 (DOI)2-s2.0-85082511882 (Scopus ID)978-1-64368-020-0 (ISBN)978-1-64368-021-7 (ISBN)
Conference
26th ISTE International Conference on Transdisciplinary Engineering, held at the University of Tokyo, Kashiwa Campus, July 30 – August 1, 2019, Japan
Available from: 2019-11-18 Created: 2019-11-18 Last updated: 2020-04-24Bibliographically approved
Heikkinen, T., Stolt, R. & Elgh, F. (2019). Incorporating Design for Additive Manufacturing in Multidisciplinary Design Automation – Challenges Identified. In: Proceedings of CAD'19: . Paper presented at CAD'19, Singapore, June 24-26, 2019. (pp. 372-376).
Open this publication in new window or tab >>Incorporating Design for Additive Manufacturing in Multidisciplinary Design Automation – Challenges Identified
2019 (English)In: Proceedings of CAD'19, 2019, p. 372-376Conference paper, Published paper (Refereed)
Keywords
Design for Additive Manufacturing, Multidisciplinary Design Automation, Lattice-based structural Topology Optimization
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-46506 (URN)10.14733/cadconfP.2019.372-376 (DOI)
Conference
CAD'19, Singapore, June 24-26, 2019.
Available from: 2019-10-09 Created: 2019-10-09 Last updated: 2019-10-09Bibliographically approved
Heikkinen, T., Johansson, J. & Elgh, F. (2018). Extended design assets enabling automated tool development as a part of a product platform approach. In: Marjanović D., Štorga M., Škec S., Bojčetić N., Pavković N. (Ed.), DS92: Proceedings of the DESIGN 2018 15th International Design Conference: . Paper presented at 15th International Design Conference - DESIGN 2018, May 21st-24th, 2018, Dubrovnik, Croatia (pp. 757-768). The Design Society
Open this publication in new window or tab >>Extended design assets enabling automated tool development as a part of a product platform approach
2018 (Swedish)In: DS92: Proceedings of the DESIGN 2018 15th International Design Conference / [ed] Marjanović D., Štorga M., Škec S., Bojčetić N., Pavković N., The Design Society, 2018, p. 757-768Conference paper, Published paper (Refereed)
Abstract [en]

Product platform development is a well-established approach for reusing product knowledge in the form of geometry and its configuration rules and constraints. Explicitly defining all platform components is not always possible however. This is why a product platform approach where the processes of realising platform components also are supported is needed, instead of exclusively relying on their results. The work presented here works toward this, with a focus on automated tool development enabled by extending design assets from different tools.

Place, publisher, year, edition, pages
The Design Society, 2018
Series
Design, ISSN 1847-9073
Keywords
product platform, design automation, product families, model based engineering
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-39681 (URN)10.21278/idc.2018.0219 (DOI)2-s2.0-8505500811 (Scopus ID)978-953-7738-59-4 (ISBN)
Conference
15th International Design Conference - DESIGN 2018, May 21st-24th, 2018, Dubrovnik, Croatia
Available from: 2018-06-01 Created: 2018-06-01 Last updated: 2019-02-14Bibliographically approved
Stolt, R., Heikkinen, T. & Elgh, F. (2018). Integrating Additive Manufacturing in the Design of Aerospace Components. In: Margherita Peruzzini, Marcello Pellicciari, Cees Bil, Josip Stjepandić, Nel Wognum (Ed.), Transdisciplinary Engineering Methods for Social Innovation of Industry 4.0: Proceedings of the 25th ISPE Inc. International Conference on Transdisciplinary Engineering. Paper presented at 25th ISPE International Conference on Transdisciplinary EngineeringIntegrating (TE2018), 3-6 July, Modena, Italy (pp. 145-154). IOS Press
Open this publication in new window or tab >>Integrating Additive Manufacturing in the Design of Aerospace Components
2018 (English)In: Transdisciplinary Engineering Methods for Social Innovation of Industry 4.0: Proceedings of the 25th ISPE Inc. International Conference on Transdisciplinary Engineering / [ed] Margherita Peruzzini, Marcello Pellicciari, Cees Bil, Josip Stjepandić, Nel Wognum, IOS Press, 2018, p. 145-154Conference paper, Published paper (Refereed)
Abstract [en]

In the aerospace industry, Additive Manufacturing (AM) is quickly gaining ground. When optimizing the design of an AM component, all life-cycle aspects need to be considered. It is by no means limited to the classic weight / stiffness optimization of the topology alone. The AM component design must comply with an array of requirements on for example assembly, maintenance and inspection. In addition, there are the manufacturability requirements and constraints of the printing procedure itself, including component orientation and support structures. In this paper, a proposal on how to integrate the AM design of components with the design of the complete engine structure is presented. To find how the current design process is conducted, an interview study involving design and manufacturing experts has been made at an aerospace company, forming a base for the proposal. The result is that a primary design procedure for the AM component must be made as a separate step involving a limited set of design considerations prior to making a multidisciplinary evaluation of the proposed engine structure.

Place, publisher, year, edition, pages
IOS Press, 2018
Series
Advances in Transdisciplinary Engineering ; 7
Keywords
Additive Manufacturing, Product Development, Decision support, Topology optimization, Aerospace
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-41406 (URN)10.3233/978-1-61499-898-3-145 (DOI)000468226300015 ()2-s2.0-85057962006 (Scopus ID)978-1-61499-897-6 (ISBN)978-1-61499-898-3 (ISBN)
Conference
25th ISPE International Conference on Transdisciplinary EngineeringIntegrating (TE2018), 3-6 July, Modena, Italy
Available from: 2018-09-11 Created: 2018-09-11 Last updated: 2019-06-07Bibliographically approved
Heikkinen, T. (2018). Multidisciplinary design automation: Working with product model extensions. (Licentiate dissertation). Jönköping: Jönköping University, School of Engineering
Open this publication in new window or tab >>Multidisciplinary design automation: Working with product model extensions
2018 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Being able to efficiently and effectively provide custom products has been identified as a competitive advantage for manufacturing organizations. Product configuration has been shown to be an effective way of achieving this through a modularization, product platform and product family development approach. A core assumption behind product configuration is that the module variants and their constraints can be explicitly defined as product knowledge in terms of geometry and configuration rules. This is not always the case, however. Many companies require extensive engineering to develop each module variant and cannot afford to do so in order to meet potential customer requirements within a predictable future. Instead, they try to implicitly define the module variants in terms of the process for how they can be realized. In this way they can realize module variants on demand efficiently and effectively when the customer requirements are better defined, and the development can be justified by the increased probability of profiting from the outcome.

Design automation, in its broadest definition, deals with computerized engineering support by effectively and efficiently utilizing pre-planned reusable assets to progress the design process. There have been several successful implementations reported in the literature, but a widespread use is yet to be seen. It deals with the explicit definition of engineering process knowledge, which results in a collection of methods and models that can come in the form of computer scripts, parametric CADmodels, template spreadsheets, etc. These methods and models are developed using various computer tools and maintained within the different disciplines involved, such as geometric modeling, simulation, or manufacturing, and are dependent on each other through the product model. To be able to implement, utilize, and manage design automation systems in or across multiple disciplines, it is important to first understand how the disciplinary methods and models are dependent on each other through the product model and then how these relations should be constructed to support the users without negatively affecting other aspects, such as modeling flexibility, minimum documentation, and software tool independence.

To support the successful implementation and management of design automation systems the work presented here has focused on understanding how some digital product model constituents are, can, and, to some extent, should be extended to concretize relations between methods and models from different tools and disciplines. It has been carried out by interviewing Swedish industrial companies, performing technical reviews, performing literature reviews, and developing prototypes, which has resulted in an increased understanding and the consequent development of a conceptual framework that highlights aspects relating to the choice of extension techniques.

Place, publisher, year, edition, pages
Jönköping: Jönköping University, School of Engineering, 2018. p. 56
Series
JTH Dissertation Series ; 037
National Category
Software Engineering
Identifiers
urn:nbn:se:hj:diva-41191 (URN)978-91-87289-38-5 (ISBN)
Available from: 2018-08-21 Created: 2018-08-21 Last updated: 2019-02-14Bibliographically approved
Elgh, F., Johansson, J., Stolt, R., Lennartsson, M., Heikkinen, T. & Raudberget, D. (2018). Platform Models for Agile Customization – What's Beyond Modularization?. In: Margherita Peruzzini, Marcello Pellicciari, Cees Bil, Josip Stjepandić, Nel Wognum (Ed.), Transdisciplinary Engineering Methods for Social Innovation of Industry 4.0: Proceedings of the 25th ISPE Inc. International Conference on Transdisciplinary Engineering. Paper presented at 25th ISPE International Conference on Transdisciplinary EngineeringIntegrating (TE2018), 3-6 July, Modena, Italy (pp. 371-380). IOS Press
Open this publication in new window or tab >>Platform Models for Agile Customization – What's Beyond Modularization?
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2018 (English)In: Transdisciplinary Engineering Methods for Social Innovation of Industry 4.0: Proceedings of the 25th ISPE Inc. International Conference on Transdisciplinary Engineering / [ed] Margherita Peruzzini, Marcello Pellicciari, Cees Bil, Josip Stjepandić, Nel Wognum, IOS Press, 2018, p. 371-380Conference paper, Published paper (Refereed)
Abstract [en]

Many manufacturing companies are suppliers that deliver unique solutions to different business customers. Intense quotation work, with a high demand on accuracy and quick response, and development projects executed in close collaboration with customers and other actors characterize these companies. The projects can run for years or a few weeks depending on the business. Changes of requirements are frequent and technology development required for improved functionality, sustainability and competitiveness. The use of a product platform has been acknowledged as a strategic enabler for product family development and mass customization. However, companies struggle with adopting the common platform approach building upon pre-defined modules and components as it constraints the fulfilment of unique customer requirements and the introduction of new technology at high pace. This work reports the results from case studies conducted in collaboration with four companies. They are in many ways different but face the same challenges when it comes to customization, fluctuating requirements and need of high pace in technology advancement. The focus of this paper is on their initial states; including how they work with their product concept before the customer entry point, the work that is initiated when an order is accepted, the character of requirements and the adoption of product platforms. Criteria on, and identification of, new platforms models, termed Design Assets, are presented followed by a mapping to the Design Platform concept pointing out areas upcoming work, both scientifically and at the companies.

Place, publisher, year, edition, pages
IOS Press, 2018
Series
Advances in Transdisciplinary Engineering ; 7
Keywords
Modularization, customization, supplier, engineer-to-order, design asset
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-41409 (URN)10.3233/978-1-61499-898-3-371 (DOI)000468226300037 ()2-s2.0-85057963770 (Scopus ID)978-1-61499-897-6 (ISBN)978-1-61499-898-3 (ISBN)
Conference
25th ISPE International Conference on Transdisciplinary EngineeringIntegrating (TE2018), 3-6 July, Modena, Italy
Available from: 2018-09-11 Created: 2018-09-11 Last updated: 2019-06-07Bibliographically approved
Heikkinen, T., Johansson, J. & Elgh, F. (2018). Review of CAD-model Capabilities and Restrictions for Multidisciplinary use. Computer-Aided Design and Applications, 15(4), 509-519
Open this publication in new window or tab >>Review of CAD-model Capabilities and Restrictions for Multidisciplinary use
2018 (English)In: Computer-Aided Design and Applications, ISSN 1686-4360, Vol. 15, no 4, p. 509-519Article in journal (Refereed) Published
Abstract [en]

Product development is an iterative process, partially due to changes in both company internal and external product requirements, resulting in changes to the product under development. These changes might require recapitulation of design rationale and result in re-doing assessments and syntheses of different kinds. One way to support this work is to proactively model in such a way that as much as possible of the previous work can be re-used. Not only within one product development project but also across and to future ones. Modelling for re-use can be done by documenting design rationale and formalising performed activities as design guidelines or computer scripts. To be able to find and re-use this information it could be attached to the product features which it relates to. Since geometry is such a core product characteristic, especially within the mechanical industry, and is often modelled as CAD-models, this paper presents a review of CAD-model capabilities and restrictions to serve as a carrier of multidisciplinary information. This is done by; enquiring three Swedish companies, exploring an automated Finite Element Analysis method utilising the CAD-model as a carrier of information, and reviewing different CAD software capabilities. Results show that there are at least seven extension techniques, out of which all are currently being used or considered to be in the future, by at least one company. Further, depending on the extension technique, extendibility and human-comprehension of the added information differ.

Place, publisher, year, edition, pages
Taylor & Francis, 2018
Keywords
Computer-aided design, computer supported engineering, simulation-ready cad-models, knowledge re-use
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-37034 (URN)10.1080/16864360.2017.1419639 (DOI)2-s2.0-85040971759 (Scopus ID)
Available from: 2017-08-28 Created: 2017-08-28 Last updated: 2019-02-14Bibliographically approved
Heikkinen, T., Johansson, J. & Elgh, F. (2017). Extended CAD-models – State of Practice within Three Companies. In: IEEM2017, International Conference on Industrial Engineering and Engineering Management, 10-13 December, 2017, Singapore: . Paper presented at IEEM2017, International Conference on Industrial Engineering and Engineering Management, 10-13 December, 2017, Singapore (pp. 1089-1093). IEEE
Open this publication in new window or tab >>Extended CAD-models – State of Practice within Three Companies
2017 (English)In: IEEM2017, International Conference on Industrial Engineering and Engineering Management, 10-13 December, 2017, Singapore, IEEE, 2017, p. 1089-1093Conference paper, Published paper (Refereed)
Abstract [en]

Product platforms and product family design have been recognized as successful methods to enable masscustomization strategies. However, companies working with products where pre-defined product variants are not feasible require a more generic platform with re-usable components as well as engineering resources. Extended CAD-models is an approach where CAD-models are utilized as carriers of information to support re-usability of both geometric content and engineering activities, decreasing product development lead-time and enabling the definition of a product family within Engineer-To-Order business contexts. The following paper presents the approach in more detail and the results of a multi-case study where three Swedish industrial companies were interviewed. Results show that all companies store information within the CAD-models to support re-usability. Several challenges were expressed such as managing responsibilities and modeling flexible CAD-models. Future trends involve the concept, but to which extent is not clear.

Place, publisher, year, edition, pages
IEEE, 2017
Series
IEEE International Conference on Industrial Engineering and Engineering Management (IEEM), ISSN 2157-362X
Keywords
Extended CAD-model, Platform strategy, State of practice
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-38549 (URN)10.1109/IEEM.2017.8290060 (DOI)000428267800222 ()2-s2.0-85045235592 (Scopus ID)
Conference
IEEM2017, International Conference on Industrial Engineering and Engineering Management, 10-13 December, 2017, Singapore
Available from: 2018-01-15 Created: 2018-01-15 Last updated: 2018-09-11Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-9337-791x

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