Dynamic analysis and ℋ2 optimisation of a piezo-based tuned vibration absorber (CROSBI ID 219082)
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Podaci o odgovornosti
Zhao, Guoying ; Alujević, Neven ; Depraetere, Bruno ; Sas, Paul
engleski
Dynamic analysis and ℋ2 optimisation of a piezo-based tuned vibration absorber
In this article, a piezo-based tuned vibration absorber is proposed and theoretically analysed. The proposed device consists of a proof mass, a piezoelectric actuator and a resilient element (spring). An equivalent mechanical model where the piezoelectric element is connected to a general circuit composed of a resistor, an inductor and a capacitor in series (RLC) is presented to illustrate the coupling of the electrical components with the mechanical systems. Based on the mechanical replacement model, a C or L circuit can be used to realise a piezo-based tuned vibration neutraliser, while with an RC or RL circuit the piezo-based tuned vibration absorber can be considered as a piezo-based tuned mass damper. For the C and L circuits, tuning strategies are derived to adjust the shunt capacitance and inductance to track the disturbance frequency. In the case of RC and RL shunt circuits, an ℋ2 optimisation criterion is used for tuning the piezo-based tuned mass damper. Closed-form expressions for the optimal tuning parameters are provided in this article.
Piezoelectric element; tuned vibration absorber; shunt circuit; H2 optimisation
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Podaci o izdanju
26 (15)
2015.
1995-2010
objavljeno
1045-389X
10.1177/1045389X14546652
Povezanost rada
Brodogradnja, Elektrotehnika, Strojarstvo