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Optimization of Mechatronic Systems for supporting Early Design Decisions
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.), Mechatronics.ORCID iD: 0000-0002-7550-3134
2012 (English)In: The 13th Mechatronics Forum International Conference Proceedings / [ed] Rudolf Scheidl and Bernhard Jakoby, Linz: TRAUNER Verlag, 2012, 490-497 p.Conference paper, Published paper (Refereed)
Abstract [en]

It is a daunting task to design a modern mechatronic system. The many engineering fields coming together as one create integration issues and raise difficulties in finding the optimum solution to a design problem. This paper contributes to solving parts of this problem by presenting a novel approach for supporting design decisions in an early phase of the product development process of mechatronic products. In order to support decision making for a broad range of mechatronic products, a framework is presented which is capable of handling arbitrary system configurations consisting of standard mechatronic components, e.g. DC motors and gearboxes. Given according component models, the framework can optimize suggested concept ideas with regard to for instance system volume or inertia. In order to quickly optimize and evaluate different concepts, it is advisable to keep the underlying component models simple, yet powerful enough to be used for typical mechatronic systems. The presented approach therefore makes analytic usage of component models without requiring time-consuming numerical simulations. The results of the paper indicate that the presented method has good potential, especially for evaluating concepts in an early design phase, and further research effort should be put into developing it.

Place, publisher, year, edition, pages
Linz: TRAUNER Verlag, 2012. 490-497 p.
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-111529OAI: oai:DiVA.org:kth-111529DiVA: diva2:586933
Conference
The 13th Mechatronics Forum International Conference, September 17 - 19, 2012, Linz, Austria
Funder
Swedish Foundation for Strategic Research
Note

QC 20130114

Available from: 2013-01-13 Created: 2013-01-13 Last updated: 2015-01-14Bibliographically 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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