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Investigation and Development of Piezoelectric Synchronized Switch Shunt Damping on Inductor Technique

Autor: Xu Han

ISBN: 978-3-943104-89-9

Dissertation, Leibniz Universität Hannover, 2013

Herausgeber der Reihe: Jörg Wallaschek

Band-Nr.: IDS 02/2013

Umfang: 132 Seiten, 68 Abbildungen

Schlagworte: Vibration damping; piezoelectric systems; mechatronic systems; shunt damping; synchronized switch damping; negative capacitance shunt

Kurzfassung: In this thesis, the further investigation and improvement on synchronized switch shunt damping on inductor technique (SSDI technique) are described. The optimization of the nonlinear shunt network based on eigenvalues analysis of discrete dynamic equations is introduced. A novel switch shunt damping circuit for improved damping performance is introduced. It is a combination of the SSDI shunt and a negative capacitance. It combines the adaptive nature of the SSDI technique and the improved performance through a negative capacitance. The switching control laws for handling broadband multimodal vibration are theoretically studied, an enhanced switching law using a modal observer is presented. Additionally, the approach of synthesizing the nonlinear switch shunt damping network is presented.

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