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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]

One of the core ideas in this thesis is to determine how single- and multiobjective design optimization can be applied and implemented to improve products. The background for this thesis is an EC research project named SuPLight. The purposes is to develop a practical approach by introducing an aircraft component from Hellenic Aerospace Industry. The objective is to reduce the weight/mass of this component by 10 %, without sacrificing stiffness in the load direction. This proved to be impossible with such stringent conditions. However, it was possible to reduce the mass by 6.26 %, and still maintain the same stiffness. In Chapter 1, the reader is introduced to design optimization and the main objective of this thesis. Chapter 2 covers the base line for the aircraft component. Further, it will be presented how the model should be prepared in order to capture design intent, a so called parameterization. This is covered in Chapter 3. In Chapter 4, a demonstration is presented of how a sensitivity analysis can be performed. A sensitivity analysis helps the validation of the design parameters before performing an single-objective optimization in Chapter 5. In addition to the single-objective optimization, the multiobjective approach will be thoroughly considered in Chapter 6. Beside the thesis, a set of detailed descriptions realted to the use of the software in A3 format, have been made. These can also be found in the appendices.

Place, publisher, year, edition, pages
Institutt for produktutvikling og materialer , 2013. , 144 p.
URN: urn:nbn:no:ntnu:diva-22197Local ID: ntnudaim:9901OAI: diva2:648652
Available from: 2013-09-16 Created: 2013-09-16 Last updated: 2013-09-16Bibliographically approved

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