Optimization and Vibration Analysis of FGM Stiffened Cylinders by Application of Cylindrical Superelement

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Moeini, Ali | 2009

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 39988 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Ahmadian, Mohammad Taghi
Abstract:
Cylinders are one of the most applicable components in industry. According to the application of these elements, reinforcement and stiffening are the common ways to enhance mechanical properties of them. Nowadays, by advent of new materials such as functionally graded materials (FGMs), a novel method of improving these structures is discovered. By application of FGMs, many physical and mechanical characteristics of these structures can be modified. In this thesis, vibration analysis and frequency optimization of a stiffened cylinder made from FGMs are performed. FGM which is employed in this investigation is made from two different materials, to have better modal properties which cause in increasing of fundamental natural frequency while having a lower mass in comparison with the same cylinders made from uniform constituents of FGM.
Keywords:
Genetic Algorithm ; Cylindrical Superelement ; Optimization ; Vibrational Analysis ; Functionally Graded Materials (FGM)

No TOC