Multimode vibration suppression with passive two-terminal distributed network incorporating piezoceramic transducers

Multimode vibration suppression with passive two-terminal distributed network incorporating piezoceramic transducers

The design of an inductance/capacitance two-terminal distributed passive electric network for simultaneously controlling several flexural modes of vibration is discussed. The efficiency of the network to annul multimode vibrations of simply supported, clamped–clamped and cantilever beams is demonstrated. 2004 Elsevier Ltd. All rights reserved.

Multimode vibration control using several piezoelectric transducers shunted with a multiterminal network

In this paper a new approach is presented to reduce vibrations for oneand two-dimensional mechanical structures, as beam or thin plates, by means of several piezoelectric transducers shunted with a proper electric network system. The governing equations of the whole system are coupled to each other through the direct and converse piezoelectric effect. More in detail, the mechanical equations ar...

Multimode Passive Optical Network for LAN Application

Dynamic Modelling of Embeddable Piezoceramic Transducers

Embedded Lead Zirconate Titanate (PZT) transducers have been widely used in research related to monitoring the health status of concrete structures. This paper presents a dynamic model of an embeddable PZT transducer with a waterproof layer and a protecting layer. The proposed model is verified by finite-element method (FEM). Based on the proposed model, the factors influencing the dynamic prop...

Interferometer vibration sensor with two-wavelength passive quadrature readout

A new fiber-optic extrinsic Fabry Perot microintetferometer cantilever beam type vibration sensor (EFPIV) is described, For eliminating signal fading effects a two-wavelength demodulation scheme is implemented, The theoretical model of this sensor with pronounced eigenfrequency spectrum in the acoustic range is confirmed by experimental results. Initial field tests in an experimental airport gr...