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Title: quotDevelopment of integrated design methodologies to investigate the effects of control factors and uncertainties on topologically optimized structures for robust and reliable performances quot
Researcher: Javed, Arshad
Guide(s): Javed, Arshad
Keywords: Development of integrated design methodologies to investigate
University: Birla Institute of Technology and Science
Completed Date: 
Abstract: Topology optimization is a powerful method of material minimization. This method newlinecomprises of the techniques of optimization using finite element method and has been newlineprimarily used for weight reduction problems for structural, automobile, aircraft newlinecomponents and for the design of micro-electro-mechanical systems. Therefore, newlinebased on the applications, several formulations of topology optimization have been newlinedeveloped by researchers in the recent past. For structural and machine components, newlinethe problems are formulated for the minimization of compliance value. Compliance is newlinea performance measure for the structural problems, which is generally considered as newlinethe reverse of the stiffness. This performance measure depends on many factors such newlineas the amount of material to be removed, the material property, applied load, newlinedimensions of the material domain, and other boundary conditions. Apart from newlinecompliance, the maximum deflection is also one of the performance measures, for newlinethese components. These performance measures are sensitive to the aforesaid factors. newlineIn real life situations, these factors may not remain constant due to the presence of newlineuncertainties. For example, assumed material properties may vary due to material newlineuncertainty and manufacturing imperfections. Hence, the topology obtained during newlinethe theoretical design phase may not suffice the actual working condition. In order to newlinecapture the effects of these uncertainties, various methodologies of topology newlineoptimization have been proposed by the different researchers. Based on the available newlinework, this thesis identifies the research gaps, which needs further investigation. The newlinework presented here is motivated by the identified issues and the investigations are newlinecarried out by keeping designer s perspective. Incidentally, designers come across newlineseveral challenges to design an optimal topology that is robust. The optimal newlinetopologies with less variations in performance measures are called robust. One of the newlinerequirements for this challenge is to have a thorough knowledge.
Pagination: XVIII
Appears in Departments:Mechanical Engineering

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