Change search
Link to record
Permanent link

Direct link
BETA
Publications (10 of 36) Show all publications
Hjertberg, T., Stolt, R. & Elgh, F. (2018). A tool for obtaining transparency and traceability in heterogeneous design automation environments. Computer-Aided Design and Applications, 15(4), 488-500
Open this publication in new window or tab >>A tool for obtaining transparency and traceability in heterogeneous design automation environments
2018 (English)In: Computer-Aided Design and Applications, ISSN 1686-4360, Vol. 15, no 4, p. 488-500Article in journal (Refereed) Published
Abstract [en]

Today, CAD-system are used for much more than just geometric modeling. They are complemented by various software and information sources forming a complete environment for handling all life-cycle aspects of the product. In such systems, the CAD-system works as a central hub. The software and information sources may be of various types making the system highly heterogenous. This presents problems with transparency and traceability in the system making long term management difficult. In this paper, a novel tool is presented to keep track of the dependencies between the various parts of such systems providing an overview and making it possible to predict the effect of proposed changes and facilitating long term management. The tool is tested in a highly heterogeneous environment at a manufacturer of aerospace components, with the result that the traceability is expected to increase at the expense of that time must be spent on defining dependencies and meta-information as the system is evolving.

Place, publisher, year, edition, pages
Taylor & Francis, 2018
Keywords
Design automation, dependency management, customization, traceability, transparency
National Category
Computer Systems
Identifiers
urn:nbn:se:hj:diva-38622 (URN)10.1080/16864360.2017.1419637 (DOI)2-s2.0-85041138977 (Scopus ID)
Funder
Knowledge Foundation
Available from: 2018-01-22 Created: 2018-01-22 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
Stolt, R., André, S. & Elgh, F. (2018). Introducing Inserts for Die Casting Manufactured by Selective Laser Sintering. In: Dušan Šormaz, Gürsel Süer, F. Frank Chen (Ed.), Global Integration of Intelligent Manufacturing and Smart Industry for Good of Humanity: . Paper presented at 28th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM 2018, Columbus, United States, 11 - 14 June 2018 (pp. 309-316). Elsevier
Open this publication in new window or tab >>Introducing Inserts for Die Casting Manufactured by Selective Laser Sintering
2018 (English)In: Global Integration of Intelligent Manufacturing and Smart Industry for Good of Humanity / [ed] Dušan Šormaz, Gürsel Süer, F. Frank Chen, Elsevier, 2018, p. 309-316Conference paper, Published paper (Refereed)
Abstract [en]

The advances in additive manufacturing (AM) for high grade steels has in some cases made it possible to manufacture die inserts for demanding processes like high pressure die casting (HPDC). However, several challenges remain before this becomes commonplace. There is still a need of secondary manufacturing steps on the insert after printing. Also, extensive design changes must be made on the die inserts to fully utilize the advantages of AM. Further, the die insert is only one of many parts needed in the die assembly. Much of the die manufacturing will still be done by conventional methods. In this paper, several companies involved in the manufacturing and use of dies for HPDC have been interviewed on that they think is the future role of AM in their business. The result is that the effect of just printing the inserts would will be quite limited at present. Bringing down the time spent on die manufacture is important since that time then could be spent on improving the manufacturability of the parts.

Place, publisher, year, edition, pages
Elsevier, 2018
Series
Procedia Manufacturing, ISSN 2351-9789 ; 17
Keywords
Additive Manufacturing, Design, Die, HPDC, Interview, Tool
National Category
Materials Engineering
Identifiers
urn:nbn:se:hj:diva-42938 (URN)10.1016/j.promfg.2018.10.051 (DOI)000471035200039 ()2-s2.0-85060478657 (Scopus ID)
Conference
28th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM 2018, Columbus, United States, 11 - 14 June 2018
Available from: 2019-02-12 Created: 2019-02-12 Last updated: 2019-06-27Bibliographically 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?
Show others...
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
Elgh, F., Johansson, J., Poorkiany, M., Stolt, R. & Raudberget, D. (2018). Traceability of decisions in product realization processes of custom engineered products. 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. 249-260). The Design Society
Open this publication in new window or tab >>Traceability of decisions in product realization processes of custom engineered products
Show others...
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. 249-260Conference paper, Published paper (Refereed)
Abstract [en]

Custom engineered products require an engineer-to-order approach in development, quotation preparation and order processing. This work reports the result of a three-and-a-half-year project were the objective was to develop means for implementation and management of computer support for engineering design and production engineering of customized products. Efficient re-use is essential for success and decision is identified as the core concept to trace tasks executed, knowledge used, design rationale and artefacts developed throughout the product realization process.

Place, publisher, year, edition, pages
The Design Society, 2018
Series
Design, ISSN 1847-9073
Keywords
design knowledge, information management, process modelling, customisation, engineer-to-order
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-39618 (URN)10.21278/idc.2018.0505 (DOI)2-s2.0-85054981077 (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., Elgh, F. & Andersson, P. (2017). Design for Inspection: Evaluating the Inspectability of Aerospace Components in the Early Stages of Design. Paper presented at 27th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM2017, 27-30 June, 2017, Modena, Italy. Procedia Manufacturing, 11, 1193-1199
Open this publication in new window or tab >>Design for Inspection: Evaluating the Inspectability of Aerospace Components in the Early Stages of Design
2017 (English)In: Procedia Manufacturing, E-ISSN 2351-9789, Vol. 11, p. 1193-1199Article in journal (Refereed) Published
Abstract [en]

One important part of the manufacturing process of aerospace components is making inspections using Fluorescent Penetrant Inspection (FPI). This mandatory inspection represents a non-negligible part of the manufacturing and service cost. It is therefore important to make the geometry of the components suitable for inspection i.e. practicing Design for Inspection (DFI). This has been studied at an aerospace company with the aim of bringing DFI to the early stages of product development process. In this paper, a tool is proposed for the evaluation of inspectability in the early design stages. The tool is applied on CAD-models of the components automatically ranking the inspectability of design proposals using a novel inspectability index. Thus, inspectability can be considered together with other performance and manufacturing aspects forming a powerful decision support. The tool has been run and evaluated together with manufacturing staff at the aerospace company with promising results.

Place, publisher, year, edition, pages
Elsevier, 2017
Keywords
Inspection, Welding, CAD, Multi-diciplinary, Inspectability index, Design for inspection, DFI
National Category
Reliability and Maintenance Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-37323 (URN)10.1016/j.promfg.2017.07.244 (DOI)000419072100140 ()2-s2.0-85029829517 (Scopus ID)
Conference
27th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM2017, 27-30 June, 2017, Modena, Italy
Available from: 2017-09-18 Created: 2017-09-18 Last updated: 2018-08-17Bibliographically approved
Elgh, F., André, S., Johansson, J. & Stolt, R. (2017). Design Platform - A Coherent Model for Management and Use of Mixed Design Assets. In: C. H. Chen, A. C. Trappey, M. Peruzzini, J. Stjepandić, & N. Wognum (Ed.), Transdisciplinary Engineering: A Paradigm Shift: Proceedings of the 24th ISPE Inc. International Conference on Transdisciplinary Engineering. Paper presented at 24th ISPE Inc. International Conference on Transdisciplinary Engineering, Singapore, July 10-14, 2017. (pp. 703-712). IOS Press (3-4)
Open this publication in new window or tab >>Design Platform - A Coherent Model for Management and Use of Mixed Design Assets
2017 (English)In: Transdisciplinary Engineering: A Paradigm Shift: Proceedings of the 24th ISPE Inc. International Conference on Transdisciplinary Engineering / [ed] C. H. Chen, A. C. Trappey, M. Peruzzini, J. Stjepandić, & N. Wognum, IOS Press, 2017, no 3-4, p. 703-712Conference paper, Published paper (Refereed)
Abstract [en]

For many companies, it is a challenge to balance product variety and cost, i.e. external and internal efficiency. Product platforms has been the dominant solution for a business targeting mass-customization. The main idea is to dived the product into modules that can be shared among different product variants. This has been a success on the consumer market, however, many manufacturing companies are engineer-to-order (ETO) oriented, such as original equipment suppliers (OES). They design a unique solution, often in close collaboration with other companies, based on different product concepts and/or core technologies. For these companies, there is a strategic need for a platform model influenced by the principles of masscustomization, although, not limited to only include modules. In this work, a novel platform model, called Design Platform is described. The model has been developed and applied in cooperation with four companies. The Design Platform provides a coherent environment for management of heterogeneous design assets to be used in product development and supports an improved ability to master fluctuating requirements and systematic introduction of new technologies.

Place, publisher, year, edition, pages
IOS Press, 2017
Series
Advances in Transdisciplinary Engineering, ISSN 2352-7528 ; 5
Keywords
Customization, Engineer-to-Order, Design Platform, Product Development, Fluctuating Requirements, Technology Development
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:hj:diva-36926 (URN)10.3233/978-1-61499-779-5-703 (DOI)000449466100080 ()2-s2.0-85032862825 (Scopus ID)978-1-61499-778-8 (ISBN)978-1-61499-779-5 (ISBN)
Conference
24th ISPE Inc. International Conference on Transdisciplinary Engineering, Singapore, July 10-14, 2017.
Available from: 2017-08-18 Created: 2017-08-18 Last updated: 2019-06-07Bibliographically approved
Pabolu, V. K., Stolt, R. & Johansson, J. (2017). Flexible manufacturability analysis applied to the welding process to increase sustainability in engineer to order businesses. International Journal of Agile Systems and Management (IJASM), 10(3/4), 271-294
Open this publication in new window or tab >>Flexible manufacturability analysis applied to the welding process to increase sustainability in engineer to order businesses
2017 (English)In: International Journal of Agile Systems and Management (IJASM), ISSN 1741-9174, Vol. 10, no 3/4, p. 271-294Article in journal (Refereed) Published
Abstract [en]

This paper addresses the manufacturability of welded components for engineer to order businesses including manufacturing feasibility, approximate manufacturing cost, manufacturing difficulties along with the sustainability aspects. This is addressed by creating an evaluation system for integration in a multi-objective design analysis system in the early phases of product development of the jet engines components in an aerospace business. The work is focused on the weldability assessment based on available weld methods and the weld capabilities of the company. Several rules for analysing the weldability are proposed. To keep the knowledge transparent, traceable and updatable, it is managed by a novel software called Howtomation© Suite using a forward chaining inferencing engine. The proposed framework enables a weldability index and welding cost guide to be derived, helping the designers choose appropriate weld method in early design stages.

Place, publisher, year, edition, pages
InderScience Publishers, 2017
Keywords
design automation; knowledge based systems; engineer to order; ETO; knowledge base; knowledge object; manufacturability analysis; manufacturing cost analysis; design for sustainability; sustainability analysis.
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:hj:diva-38141 (URN)10.1504/IJASM.2017.10009459 (DOI)2-s2.0-85040921039 (Scopus ID)
Available from: 2017-12-12 Created: 2017-12-12 Last updated: 2018-08-17Bibliographically approved
Stolt, R., André, S., Elgh, F. & Andersson, P. (2017). Introducing Welding Manufacturability in a Multidisciplinary Platform for the Evaluation of Conceptual Aircraft Engine components. International Journal of Product Lifecycle Management, 10(2), 107-123
Open this publication in new window or tab >>Introducing Welding Manufacturability in a Multidisciplinary Platform for the Evaluation of Conceptual Aircraft Engine components
2017 (English)In: International Journal of Product Lifecycle Management, ISSN 1743-5110, E-ISSN 1743-5129, Vol. 10, no 2, p. 107-123Article in journal (Refereed) Published
Abstract [en]

Computer simulations play an important role for evaluating designs in an early stages leading to that more informed decisions can be taken and thereby reducing the risk of costly re-design. In this paper, a platform currently in operation at aeronautical company for doing extensive automated multiobjective design parameter studies on conceptual designs of aircraft engine components is studied. In the paper, an extension of the capability of the platform into making a rule-based evaluation of the welding manufacturability of the conceptual designs is proposed. The extension is tested by a prototype system at the air-craft manufacturer showing the relation between the design parameters and the manufacturability of the components. The results are presented as a manufacturability index showing what trade-offs with other performance criteria of the engine that can be made. It is shown that the manufacturability evaluation can be integrated in the knowledge value stream and supports a set-based concurrent engineering approach in the company.

Place, publisher, year, edition, pages
InderScience Publishers, 2017
Keywords
Manufacturability, CAx, Robotic welding, Set-Based Concurrent Engineering, platform, Multi-objective
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:hj:diva-36808 (URN)10.1504/IJPLM.2017.10006967 (DOI)2-s2.0-85028515861 (Scopus ID)
Available from: 2017-08-08 Created: 2017-08-08 Last updated: 2018-08-17Bibliographically approved
Raudberget, D., Levandowski, C., André, S., Isaksson, O., Elgh, F., Müller, J., . . . Stolt, R. (2017). Supporting Design Platforms by Identifying Flexible Modules. In: Anja Maier, Stanko Škec, Harrison Kim, Michael Kokkolaras, Josef Oehmen, Georges Fadel, Filippo Salustri, Mike Van der Loos (Ed.), 21st International Conference on Engineering Design (ICED17): Vol. 3: Product, Services and Systems Design. Paper presented at International Conference on Engineering Design (ICED17), Vancouver, 21-25 August, 2017. (pp. 191-200). The Design Society
Open this publication in new window or tab >>Supporting Design Platforms by Identifying Flexible Modules
Show others...
2017 (English)In: 21st International Conference on Engineering Design (ICED17): Vol. 3: Product, Services and Systems Design / [ed] Anja Maier, Stanko Škec, Harrison Kim, Michael Kokkolaras, Josef Oehmen, Georges Fadel, Filippo Salustri, Mike Van der Loos, The Design Society, 2017, p. 191-200Conference paper, Published paper (Refereed)
Abstract [en]

One way for firms to stay competitive is to adapt a platform approach. In product platforms, modules are used as exchangeable design blocks to create a variety in product performance. This is a proven way to get advantages of scale in production by reusing physical parts and investments in manufacturing. To ensure exchangeability between modules, interfaces between modules must be well defined. Hence, from this point of view, there is no such thing as flexible modules. In this research, flexibility refers to the idea of identifying strategic portions of the platform where flexibility is needed and to create the modular division in a way that the assigned modules are de-coupled in theses areas. The presented approach shows how the Design platform concept can be extended by the introduction of flexible modules. These support the Design Platforms by allowing areas of strategic importance to be more flexible and thereby enable room for uncertainties such as fluctuating requirements and future technical development.

Place, publisher, year, edition, pages
The Design Society, 2017
Series
Proceedings of the International Conference on Engineering Design, ISSN 2220-4342, E-ISSN 2220-4334
Keywords
Product architecture, Set-based Concurrent Engineering, Systems Engineering (SE), Functional modelling, Modularisation
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-37119 (URN)2-s2.0-85029821488 (Scopus ID)978-1-904670-91-9 (ISBN)
Conference
International Conference on Engineering Design (ICED17), Vancouver, 21-25 August, 2017.
Available from: 2017-09-01 Created: 2017-09-01 Last updated: 2018-08-17Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-6278-2499

Search in DiVA

Show all publications