Change search
ReferencesLink to record
Permanent link

Direct link
Parameterization and Multiobjective Optimization
Norwegian University of Science and Technology, Faculty of Engineering Science and Technology, Department of Engineering Design and Materials.
2013 (English)MasteroppgaveStudent thesis
Abstract [en]

This thesis has dealt with the overall process regarding optimization of a control arm, with a focus on providing a practical guide. The rst chapter explains how to approach these kinds of issues and outlines a strategy for model parameterization. The product requirements has been identied. The overall goal is to reduce weight by 10 % while maintaining the same stiness. Then the most suited design expressions has been chosen to ensure the best possible outcome of the following optimizations. When the optimal parameterization strategy has been chosen the next chapter deals with an automatic optimization in the internal optimization module in NX to verify if the criteria related to model parameterization was met. This generated weight savings of 2,67 % which is a quite good result. The nal chapter regarding multiobjective optimization contains all the background with congurations, theory and optimizations done within modeFRONTIER. Five dierent algorithms was tested in modeFRONTIER with default preferences and benchmarked against each other. This was done as a way to determine their eciency with no prior information that could help the eciency of the algorithms. Two of the best algorithms were chosen for a more extensive optimization with a subsequent local search to nd out if they could generate better results. The best result generated weight savings of 3,56 %, which was produced by the Hybrid algorithm.

Place, publisher, year, edition, pages
Institutt for produktutvikling og materialer , 2013. , 176 p.
URN: urn:nbn:no:ntnu:diva-22260Local ID: ntnudaim:9900OAI: diva2:648715
Available from: 2013-09-16 Created: 2013-09-16 Last updated: 2013-09-16Bibliographically approved

Open Access in DiVA

fulltext(16119 kB)2579 downloads
File information
File name FULLTEXT01.pdfFile size 16119 kBChecksum SHA-512
Type fulltextMimetype application/pdf
cover(294 kB)6 downloads
File information
File name COVER01.pdfFile size 294 kBChecksum SHA-512
Type coverMimetype application/pdf
attachment(5054 kB)89 downloads
File information
File name ATTACHMENT01.zipFile size 5054 kBChecksum SHA-512
Type attachmentMimetype application/zip

By organisation
Department of Engineering Design and Materials

Search outside of DiVA

GoogleGoogle Scholar
Total: 2579 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 118 hits
ReferencesLink to record
Permanent link

Direct link