Vibroacoustic response and active control of a fluid-filled functionally graded piezoelectric material composite cylinder
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"Vibroacoustic response and active c..." refers methods in this paper
...Just recently, Xiang et al. (2011b) employed the extended homogeneous capacity precision integration approach along with the superposition principle to offer a semianalytic solution for the previously derived electric fluid–solid-coupled governing equations associated with a liquid-filled circular cylindrical shell treated with PACLD layers and subjected to ground harmonic motion....
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"Vibroacoustic response and active c..." refers background or methods in this paper
...Conventional coupled vibration of circular cylindrical shells filled with ideal liquid or submerged in an infinite liquid region has been extensively investigated (Chen et al., 2004a; Hasheminejad and AhamdiSavadkoohi, 2010; Shah et al., 2011; Ventsel et al., 2010). Nevertheless, these structures generally do not have sufficient amount of damping, which make them vulnerable when severe resonance occurs. Traditional structural vibration control methods use passive constrained layer damping (PCLD) materials (i.e. a viscoelastic core layer along with an elastic material layer) bonded to the structure’s surface in order to suppress the vibration and noise. The dynamic characteristics of fluid-filled cylindrical shells with viscoelastic damping layers have been studied by several authors. For example, Ramasamy and Ganesan (1999) used the firstorder deformation theory to develop a semianalytical FEM model for calculating the natural frequencies and dynamic response of fluid-filled orthotropic cylindrical shells fully covered with constrained layer damping (CLD)....
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...The computed dimensionless frequencies, O = vaq ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi r P =C PZT4 44 p , as plotted in Figure 8(b), exhibit perfect agreements with the free vibration natural frequency data presented in Figure 8 of Chen et al. (2004b)....
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...The computed dimensionless frequencies, O = vaq ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi rPZT4P =C PZT4 44 p , as plotted in Figure 8(b), exhibit perfect agreements with the free vibration natural frequency data presented in Figure 8 of Chen et al. (2004b)....
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...Conventional coupled vibration of circular cylindrical shells filled with ideal liquid or submerged in an infinite liquid region has been extensively investigated (Chen et al., 2004a; Hasheminejad and AhamdiSavadkoohi, 2010; Shah et al., 2011; Ventsel et al., 2010)....
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...Chen et al. (2004b) studied the coupled vibration of an orthotropic functionally graded piezoelectric material (FGPM) hollow cylinder filled with internal compressible fluid using the 3D equations of piezoelasticity....
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