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Holistic design methodology for mechatronic systems
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).ORCID iD: 0000-0002-7550-3134
2014 (English)In: Proceedings of the Institution of mechanical engineers. Part I, journal of systems and control engineering, ISSN 0959-6518, E-ISSN 2041-3041, Vol. 228, no 10, 741-757 p.Article in journal (Refereed) Published
Abstract [en]

The wide range of engineering domains aggregated in mechatronic systems can cause problems for design engineers. It is important to treat the different domains in an integrated, concurrent manner during design to be able to achieve the frequently sought-for synergetic effects of mechatronic systems. Traditional design methods are usually based on the different engineering disciplines being treated separately and only integrated at a late stage of the development process. Consequently, those methods do not work sufficiently well for mechatronic systems, leading to a suboptimal product. Previous research by the authors presents a novel approach to mechatronic system design by allowing quick optimisation and evaluation of design concepts. This is done by front loading certain design activities, hence decreasing the need for time- and cost-consuming iterations in later design stages. The method is backed up by a supporting software tool prototype. This article extends the method by including the dynamic aspects of the designed systems while also implementing basic control aspects, hence creating a concurrent and holistic method for mechatronic system design. This allows the designer to take synergetic effects into account at an earlier stage of the design process, hence increasing product quality and decreasing development costs. A conceptual design case is used in this article for an initial evaluation of the method and the results show great potential for the methodology.

Place, publisher, year, edition, pages
2014. Vol. 228, no 10, 741-757 p.
Keyword [en]
Mechatronic design, concept evaluation, integrated control, holism
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-157020DOI: 10.1177/0959651814527936ISI: 000344245100001Scopus ID: 2-s2.0-84908884111OAI: oai:DiVA.org:kth-157020DiVA: diva2:768849
Funder
Swedish Foundation for Strategic Research , V08.02
Note

QC 20141205

Available from: 2014-12-05 Created: 2014-12-04 Last updated: 2017-12-05Bibliographically approved
In thesis
1. A tool for holistic optimization of mechatronic design concepts
Open this publication in new window or tab >>A tool for holistic optimization of mechatronic design concepts
2015 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Designing mechatronic systems is challenging. Even so, mechatronicproducts are regarded as one of the most important means in order toinnovate in many large industries, e.g. automobile and aerospace. Theinherent difficulty lies in the multiple engineering domains involved and howthese are treated during the development process. A holistic approach, whichtreats these domains concurrently, is needed in order to find hidden synergiesbetween domains and in the end find an optimal product design based ongiven requirements.

Traditional product development methodologies, even ones with amechatronic design focus, rely on treating the individual domains separatelyand only integrating them at a point in time rather far into the detailed designphase of the development process. In addition, in order to solve problems thatarise in later design stages, the design engineers need to backtrack to earlierstages and in the worst case repeat substantial parts of the work. This is bothtime and cost inefficient.

This dissertation summarizes and extends previously published research bythe author about a novel mechatronic design methodology and a supportingsoftware tool. The goal of the design methodology is to enable design of betterproducts, in terms of e.g. development cost, size, and sustainability, by findingsynergies and reducing backtracking through better analysis of systemconcepts. The methodology relies on using an optimizer to efficientlydetermine the potential of a system concept, described by combining a numberof component models, e.g. motors, transmissions, and structural ones, from acomponent library and specifying their parameters.

A number of design cases have been evaluated, some of which are presentedin this dissertation, including both one where a physical prototype is built, anda few virtual ones. These design cases have been instrumental in evaluating themethodology as well as the software tool.

It is concluded that the design methodology is able to properly evaluate aconcept against competing concepts, and that it is a useful addition to existingmethodologies. However, as always, a number of improvements are possible,some of which are presented in a concluding section.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2015. xix, 71 p.
Series
TRITA-MMK, ISSN 1400-1179 ; 2015:01
Keyword
Mechatronics, Design methodology, Conceptual design, Optimization, Modeling, Integrated design
National Category
Mechanical Engineering
Research subject
Machine Design
Identifiers
urn:nbn:se:kth:diva-158886 (URN)978-91-7595-418-9 (ISBN)
Public defence
2015-01-30, Gladan, Brinellvägen 85, KTH, Stockholm, 13:00 (English)
Opponent
Supervisors
Funder
Swedish Foundation for Strategic Research
Note

QC 20150114

Available from: 2015-01-14 Created: 2015-01-13 Last updated: 2015-01-14Bibliographically approved

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Wikander, Jan

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