A Robust design methodology for structural control using piezoelectric materials.

(1997) A Robust design methodology for structural control using piezoelectric materials. Masters thesis, King Fahd University of Petroleum and Minerals.


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English Abstract

A robust design methodology is presented for the control of flexible structures by the use of piezoelectric actuators. The finite element modeling and analysis of the piezoelectric media are carried out via Hamilton's principle. Finite element equations are utilized for the piezoelectric control of flexible structures subject to dynamic and thermal disturbances. Various configurations of piezoelectric actuator pairs mounted on cantilever beam structures are considered for illustrative purposes. The dimensions as well as the locations of the actuator pairs are assumed to be varying within certain limits. Taguchi methodology is employed to these piezoelectrically controlled structures as a robust design technique in order to investigate the effects of the design variables on the control performance. A novel optimization problem is also formulated and solved to compare the results with those obtained from Taguchi methodology. Within the ranges considered in this study, it is concluded that the piezoelectric actuator pairs with larger sizes usually perform better in attenuating the structural vibrations. For the actuator pair location, the actuator pairs close to the fixed end have better peroformance chatracteristics.

Item Type: Thesis (Masters)
Subjects: Mechanical
Department: College of Engineering and Physics > Mechanical Engineering
Committee Advisor: Sunar, Mehmet
Committee Members: Al-Nassar, Yaagoub Nassar and Sheikh, Anwar K.
Depositing User: Mr. Admin Admin
Date Deposited: 22 Jun 2008 13:54
Last Modified: 01 Nov 2019 13:54
URI: https://eprints.kfupm.edu.sa/id/eprint/10004