Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2010. / ENGLISH ABSTRACT: This thesis deals with the mathematical optimization of the detecting chamber of a thermal convective
microfluidic gyroscope and the comparison of several different optimization strategies.
An analytical model is developed for the gyroscope and some design considerations are discussed. Sequential
approximate optimization strategies are explained and compared to each other by implementing
test problems fromthe literature. The optimization problem is formulated from the analytical model
and implemented using the different optimization strategies. Results are presented and compared to
find the most effective optimization strategy.
A sequential approximate optimization algorithm is implemented in MATLAB and tested using the gyroscope
design problem and common test problems from the literature. Results and iteration history are
compared with an existing FORTRAN implementation. / AFRIKAANSE OPSOMMING: Hierdie tesis handel oor die wiskundige optimering van die deteksiekamer van n termies-konvektiewe
mikrovloeier giroskoop en die vergelyking van verskeie optimeringsstrategieë.
’n Analitiese model is opgestel vir die giroskoop en verskeie ontwerpsoorwegings word bespreek. Sekwensiëel
benaderde optimeringsstrategieë word bespreek en met mekaar vergelyk, deur dit op toetsprobleme
uit die literatuur toe te pas. Die optimeringsprobleem is geformuleer uit die analitiese model
en geimplementeer deur gebruik te maak van verskeie optimeringsstrategieë. Resultate word getoon en
vergelyk, omdie mees effektiewe optimeringsstrategie te vind.
’n Algoritme vir sekwensiëel benaderde optimeringsprobleme is inMATLAB geimplementeer. Die giroskoop
probleem, asook probleme uit die literatuur, is gebruik om resultate en iterasie geskiedenis te vergelyk
met ’n bestaande FORTRAN implementasie.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/4135 |
| Date | 03 1900 |
| Creators | Vosloo, Surika |
| Contributors | Groenwold, A. A., University of Stellenbosch. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering. |
| Publisher | Stellenbosch : University of Stellenbosch |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 121 p. : ill. |
| Rights | University of Stellenbosch |
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