Analysis of a Piezoelectric Multimorph in Extensional and Flexural Motions

Ha, Sung Kyu; Kim, Y.H.

doi:10.1006/jsvi.2001.4040

Cited by 24 publications

(21 citation statements)

References 21 publications

(25 reference statements)

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“…The piezoelectric unimorph and bimorph, which can produce flexural deformation significantly larger than the length or thickness deformation of the individual piezoelectric layers, have been used as electroacoustic transducers, medical devices, microrobot, and atomic force microscope cantilevers due to the characteristics of miniaturization, high positioning accuracy, sensitive response, and large displacement (Ha and Kim, 2002).…”

Section: Introductionmentioning

confidence: 99%

A finite element model for the static and dynamic analysis of a piezoelectric bimorph

Wang

2004

International Journal of Solids and Structures

148

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Section: Introductionmentioning

confidence: 99%

A finite element model for the static and dynamic analysis of a piezoelectric bimorph

Wang

2004

International Journal of Solids and Structures

148

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“…Krommer developed the constitutive equations of a multi-morph by assuming two-dimensional kinematics of the structure [ 18 ]. Ha and Kim attempted to optimize bimorphs in order to maximize the tip stroke or vertical displacement by using the thickness ratio between the substrate (or shim layer) and PZT layers [ 19 ]. Pursuing a high bandwidth and a sufficient optical performance of the combined piezo-VCM actuator and design parameters of the PZT bender ( i.e.…”

Section: Numerical Analysismentioning

confidence: 99%

Enhancement of Optical Adaptive Sensing by Using a Dual-Stage Seesaw-Swivel Actuator with a Tunable Vibration Absorber

Chou

Lin

Cheng

2011

Sensors

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Technological obstacles to the use of rotary-type swing arm actuators to actuate optical pickup modules in small-form-factor (SFF) disk drives stem from a hinge’s skewed actuation, subsequently inducing off-axis aberrations and deteriorating optical quality. This work describes a dual-stage seesaw-swivel actuator for optical pickup actuation. A triple-layered bimorph bender made of piezoelectric materials (PZTs) is connected to the suspension of the pickup head, while the tunable vibration absorber (TVA) unit is mounted on the seesaw swing arm to offer a balanced force to reduce vibrations in a focusing direction. Both PZT and TVA are designed to satisfy stable focusing operation operational requirements and compensate for the tilt angle or deformation of a disc. Finally, simulation results verify the performance of the dual-stage seesaw-swivel actuator, along with experimental procedures and parametric design optimization confirming the effectiveness of the proposed system.

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“…The piezoelectric material has many advantages, such as the high accuracy, miniaturization and sensitive characteristics. It can be applied to many different fields, such as the electroacoustic transducers, microrobot, atomic force microscope cantilevers and structural fracture mechanics [24,55]. The piezoelectric material also was extended to model the half space domain problem [3] and the unbounded domain problem [36].…”

Section: Introductionmentioning

confidence: 99%

The Static Solution for the Layered Piezoelectric Bounded Domain with Side Face Load by the Modified SBFEM

Lu¹

2018

AAMM

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The static response of two-dimensional horizontal layered piezoelectric bounded domain with side face load was investigated. In this paper, the modified scaled boundary finite element method (SBFEM) is provided as an effective semi analytical methodology. The method is used to solve the static problem for the layered piezoelectric bounded domain. The scaling line definition extends the SBFEM to be more suitable for analyzing the multilayered piezoelectric bounded domain. It avoids the limitations of original SBFEM in modeling the horizontal layered bounded domain. The modified SBFEM governing equation with piezoelectric medium is derived by introducing Duality variable in the Hamilton system. This derivation technology makes the progress be concise. The novel displacement and electric governing equations of the modified SBFEM is given together by the first time. The node forces can be expressed as power exponent function with radial coordinate by introducing the auxiliary variable and using the eigenvalue decomposition. The novel modified S-BFEM solution of layered bounded domain with piezoelectric medium is solved. The new power expansion function of layered piezoelectric medium with side face load is proposed. This technology significantly extends the application range of modified SBFEM. The novel treatment of side face load for the layered piezoelectric bounded domain is proposed. Numerical studies are conducted to demonstrate the accuracy of proposed technique in handling with the static problem of layered bounded domain with piezoelectric medium for side face load. The influence of the side face load type and depth are discussed in detail.

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Analysis of a Piezoelectric Multimorph in Extensional and Flexural Motions

Cited by 24 publications

References 21 publications

A finite element model for the static and dynamic analysis of a piezoelectric bimorph

A finite element model for the static and dynamic analysis of a piezoelectric bimorph

Enhancement of Optical Adaptive Sensing by Using a Dual-Stage Seesaw-Swivel Actuator with a Tunable Vibration Absorber

The Static Solution for the Layered Piezoelectric Bounded Domain with Side Face Load by the Modified SBFEM

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