Application of a LIPCA for the Structural Vibration Suppression of a Flexible Beam with a Tip Mass: Experiments and Simulations

Martua, Landong; Heo, Seok; Goo, Nam Seo

doi:10.1109/iecon.2006.347638

Cited by 1 publication

(2 citation statements)

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“…When using the LIPCA for vibration control, we initially glued a curved LIPCA to a flat surface [8]. This process changes the LIPCA's curvature, which in turn affects the performance.…”

Section: The Change Of Actuation Displacement Performance Under a Fla...mentioning

confidence: 99%

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Actuation displacement performance change of pre-stressed piezoelectric actuators attached to a flat surface

Goo¹,

Phan²,

Park³

2009

Smart Mater. Struct.

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Pre-stressed piezoelectric actuators such as RAINBOW, THUNDER™, and LIPCA have a curvature due to a mismatch of the coefficient of thermal expansion, which inevitably exists during the manufacturing process. This technical note provides an answer to the question of how their actuation displacement performance changes when the curved pre-stressed piezoelectric actuators are attached to a flat surface. Finite element analysis with the ANSYS™ program was used to calculate the stress distribution inside a LIPCA, one of the pre-stressed piezoelectric actuators, after the LIPCA was cured and attached to the flat surface. The change of actuation displacement performance can be explained in terms of the relation between the piezoelectric strain constants and internal stress. As a result of the curing and attachment to a flat surface, the two-dimensional stress state inside the piezoceramic layer leads to an expected increase of around 51% for the longitudinal piezoelectric strain constant. To confirm this result, we reconsider the experimental results of the actuation moment measurement of the LIPCA and bare lead zirconium titanate.

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“…When using the LIPCA for vibration control, we initially glued a curved LIPCA to a flat surface [8]. This process changes the LIPCA's curvature, which in turn affects the performance.…”

Section: The Change Of Actuation Displacement Performance Under a Fla...mentioning

confidence: 99%

“…The purpose of this work is to investigate how the actuation displacement performance of the LIPCA C-2, one of the pre-stressed piezoelectric actuators, changes when the LIPCA is attached to a flat surface. When the first author of this paper presented research results on vibration control [8],…”

Section: Introductionmentioning

confidence: 99%