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Using Templates To Support The Engineering Designer Performing Computer-Based Design Analysis
Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Tillämpad konstruktion (Digitala verktyg).ORCID iD: 0000-0002-6438-2621
Lund University, Lund, Sweden.
Lund University, Lund, Sweden.
2015 (English)In: ASME 2015 International Mechanical Engineering Congress and Exposition: November 13-19, 2015, Houston, Texas, USA, New York: ASME Press, 2015, Vol. 11, V011T14A002Conference paper, Published 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

Place, publisher, year, edition, pages
New York: ASME Press, 2015. Vol. 11, V011T14A002
National Category
Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:hh:diva-29087DOI: 10.1115/IMECE2015-50584ISI: 000377419900002Scopus ID: 2-s2.0-84982976366ISBN: 978-0-7918-5754-0 OAI: oai:DiVA.org:hh-29087DiVA: diva2:844189
Conference
IMECE 2015, International Mechanical Engineering Congress & Exposition, November 13-19, 2015, Houston, Texas, USA
Note

Paper No. IMECE2015-50584

Available from: 2015-08-04 Created: 2015-08-04 Last updated: 2016-11-30Bibliographically approved
In thesis
1. Template-Based Design Analysis: An Alternative Approach for the Engineering Designer to Perform Computer-Based Design Analysis
Open this publication in new window or tab >>Template-Based Design Analysis: An Alternative Approach for the Engineering Designer to Perform Computer-Based Design Analysis
2016 (English)Doctoral 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.

Abstract [sv]

Vid framtagning av nya produkter måste man utgå ifrån de behov som den blivande kunden ställer i form av krav och önskemål på produkten för att den ska vara intressant att inhandla och använda. För att säkerställa att den blivande produkten har de egenskaper som efterfrågas, används idag omfattande simuleringar av den blivande produktens egenskaper. Simuleringar består i avancerade beräkningar med hjälp av dator. Genom att utföra dessa tidigt i utvecklingsarbetet, så kan man väsentligen korta ned tiden för utveckling och konstruktion av produkten. Detta uppnås framför allt genom att minska behovet av att bygga och prova prototyper. Beräkningar i utvecklings- och konstruktionsarbetet spelar därför idag en väsentlig roll för att ta fram konkurrenskraftiga produkter på ett snabbt och effektivt sätt.

I denna avhandling har ett nytt tillvägagångssätt tagits fram för att låta konstruktörer själva beräkna sina konstruktionsförslag. Hittills har merparten av alla beräkningar av detta slag genomförts av beräkningsingenjörer. Nu kan man genom att tillämpa den i avhandlingen framtagna tillvägagångssättet att med hjälp av digitala mallar (program för att lösa speciella uppgifter i konstruktionsarbetet) och det föreslagna tillvägagångssättet MallBaserad KonstruktionsAnalys (MBKA) tillåta att konstruktörer, som vanligtvis inte är specialister på beräkningar, självständigt kan utföra sådana analyser. Mallarnas roll är alltså att överbrygga brister i kompetens och erfarenheter av konstruktionsberäkningar.

Redan idag finns konkurrerande sätt att tillåta konstruktörer att delta i beräkningsarbetet, men då oftast med direkt stöd av en beräkningsingenjör och med tillgång till riktlinjer. Dessa kräver att konstruktören har en viss grundkompetens för att kunna följa och tillämpa dessa. MBKA ställer inte dessa krav på kompetens och insikter, vilket gör att den kan betraktas inte bara som en konkurrent till existerande tillvägagångssätt utan också erbjuda ett helt unikt och nytt stöd genom att inte kräva kunskaper och insikter om konstruktionsberäkningar.

Av de reaktioner som erhållits i intervjuer i svensk industri, så ter sig framtiden för MBKA som mycket lovande. Många företag funderar redan idag på att införa tillvägagångssättet. Innan så kan ske, måste dock MBKA utvecklas ytterligare, vilket är målet för den fortsatta forskningen.

Place, publisher, year, edition, pages
Lund: Division of Machine Design, Department of Design Sciences Faculty of Engineering LTH, Lund University, 2016. 73 p.
Keyword
Computer-Based Design Analysis, Engineering Design process, Template, and Template-Based Design Analysis, Datorbaserad konstruktionsanalys, Konstruktionsprocess, undersökning, beräkningsstöd samt minskade ledtider, MallBaserad KonstruktionsAnalys
National Category
Other Mechanical Engineering
Identifiers
urn:nbn:se:hh:diva-30820 (URN)978-91-7623-729-8 (ISBN)978-91-7623-730-4 (ISBN)
Public defence
2016-04-28, Stora Hörsalen, Ingvar Kamprad Designcentrum, Sölvegatan 26, Lund, 09:15 (Swedish)
Opponent
Supervisors
Note

ISRN LUTMDN/TMKT-15/1032-SE

Available from: 2016-05-20 Created: 2016-04-29 Last updated: 2016-05-20Bibliographically approved

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