Active Control of Input Power Flow to the Cylindrical Shells Based on Piezoelectric Actuator

Abstract:

The dynamic models of the infinite cylindrical shell with integrated piezoelectric actuator are derived firstly in this paper, then, the total input power flow is calculated and expressed as the Hermitian quadratic form to act as the objective function to implement the control. The optimum set of secondary force is obtained by using feed-forward quadratic optimal theory, and the total input power flow with control was calculated for different locations of the actuator. The results show that different axial and circumferential locations will induce different influences on the control effect, and the results are greatly related to the vibration type and the circumferential mode.

• Periodical: Applied Mechanics and Materials (Volumes 321-324)
• Pages: 1730-1743
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.321-324.1730
• Online since: June 2013
• Authors: Tian Yun Li, Xu Wang, Xiang Zhu, Quan Zhou Jin
• Keywords: Active Control, Cylindrical Shell, PZT Actuator, Structure Power Flow

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