A novel plate type linear piezoelectric actuator using dual-frequency drive

Liu, Zhen; Yao, Zhiyuan; Jian, Yue; Li, Xiang

doi:10.1088/1361-665x/aa7b4f

Cited by 18 publications

(11 citation statements)

References 31 publications

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“…The actuator investigated in this research is a dual-frequency LPA previously developed in [26], as shown in figure 1. The actuator is mainly composed of a stator with a driving tip, a linear guide with a ceramic bar, a preload device with a spring and a base.…”

Section: Lpa Characterizationsmentioning

confidence: 99%

“…According to the literature [26], it is noted that, the proposed LPA utilizes the inverse piezoelectric effect of the PZT ceramic pieces producing strain to excite the stator vibration. The excitation by PZT elements belongs to the strain excitation category.…”

Section: Dynamic Model Of the Stator Without Contact Processmentioning

confidence: 99%

“…In this paper, an analytical model is established to evaluate the performance of a plate single-mode actuation type LPA reported in [26], shown in figure 1. Bidirectional motion of this plate LPA is achieved by changing the vibration mode with different exciting frequencies.…”

Section: Introductionmentioning

confidence: 99%

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Characteristics analysis of a plate type linear piezoelectric actuator based on a point contact model

Liu

Yao

Jian

et al. 2018

Smart Mater. Struct.

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A point contact model is developed to analyze the fundamental characteristics of a single-mode actuation type linear piezoelectric actuator in this paper. The prototype is a plate type piezoelectric actuator using two-phase excitation, which realizes bi-directional motion by changing the vibration mode within different exciting frequencies. Differs from other models, the vibration of barycenter of the stator is taken into account, and the trajectories of driving tip are simulated and measured with and without consideration of the mechanical contact. The results show that a spiral reciprocating motion is generated at driving tip while taking into account the contact and vibration of barycenter of stator. Furthermore, the contact state between the driving tip and linear guide is analyzed by discussing the influence of some important factors including preload and exciting voltage. In addition, the behavior of the force transmission between the driving tip and linear guide is investigated via the classic coulomb friction model to understand the drive mechanism of the single-mode actuation type actuator. Finally, the relations between the output speed and various inputs to the actuator are studied by numerical simulations, which are validated by experiments. It is shown that experimental results are in good agreement with simulation results, which verifies the effectiveness of the proposed model.

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Section: Lpa Characterizationsmentioning

confidence: 99%

Section: Dynamic Model Of the Stator Without Contact Processmentioning

confidence: 99%

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Characteristics analysis of a plate type linear piezoelectric actuator based on a point contact model

Liu

Yao

Jian

et al. 2018

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…Therefore, piezoelectric driving technology is widely used in precision systems including micro/nanoindentation, scratch testing, optical focusing, and micro-robots (Jalili et al, 2016; Oubellil et al, 2019; Qiu and Piyawattanametha, 2019; Ren and Zou, 2014). Based on different driving principles, piezoelectric actuators can be divided into four categories: stick-slip, inchworm, ultrasonic, and direct drive (Jeong et al, 2013; Liaw and Shirinzadeh, 2011; Liu et al, 2017, 2018a, 2018b; Neuman et al, 2015; Tian et al, 2020; Wang et al, 2019a, 2019b). The stick-slip actuator attracted considerable attention from researchers due to its small size, high resolution, and simple control.…”

Section: Introductionmentioning

confidence: 99%

A stick-slip actuator for suppressing the backward motion by introducing a flexible beam

Wang

et al. 2022

Journal of Intelligent Material Systems and Structures

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Stick-slip actuators are in high demand in both scientific research and industrial applications. However, backward motion in stick-slip actuators has greatly limited further development. Therefore, to suppress the backward motion, a new flexible beam actuator is proposed in this paper. Correspondingly, a flexible beam actuator is designed to investigate whether the flexible beam can suppress the backward motion. Firstly, a driving mechanism is designed by employing the finite element and pseudo-rigid body methods. Secondly, experiments are conducted on the actuator. The results demonstrate that the actuator can achieve three different displacement curves at different driving voltages: backward motion, smooth motion, and sudden jump. The contact force of the actuator, which has the highest load capacity of 3.9 N, can be adjusted according to the initial load. The actuator achieved 23.714 mm/s at 400 Hz. Additionally, the dynamics model of the actuator is established for investigating the dynamic characteristics of the actuator. Based on the obtained results, the feasibility of suppressing backward motion by a flexible beam is confirmed in this paper, which will further broaden the scope of the application.

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“…Piezoelectric materials with the electro-mechanical coupling effect having the characteristics of high sensitivity and wide frequency range have been focused upon and used in mechanical vibration, robotics, acoustics and other fields [1–8]. The plate-type piezoelectric structure is relatively simple and common in engineering, such as plate-type piezoelectric sensors [9–11], plate-type piezoelectric energy harvesters [12,13] and plate-type piezoelectric actuators [14–16]. The precise solution of the coupling field of the piezoelectric plate under any electro-mechanical load is the theoretical basis for the refined design of plate-type piezoelectric devices.…”

Section: Introductionmentioning

confidence: 99%

A method for the coupled field of an orthotropic piezoelectric plate subjected to an arbitrary electro-mechanical load

Shang¹,

Hou

Tong

2020

Mathematics and Mechanics of Solids

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There are a number of plate-type piezoelectric devices in engineering, hence it is crucial to search for a method that can accurately acquire the electro-mechanical coupled field of a piezoelectric plate. A method for calculating the coupled field of an orthotropic piezoelectric plate with arbitrary thickness under an arbitrary electro-mechanical load is put forward in this article. First, the Green’s function solution of an orthotropic piezoelectric plate subjected to a line charge and a normal line force is derived based on the general solution of the orthotropic piezoelectric material. All stress and electric components of the orthotropic piezoelectric plate are derived when the general solution is substituted into suitable harmonic functions containing undetermined constants. Once the boundary conditions and electro-mechanical equilibrium conditions are satisfied, those constants can be solved. In addition, according to the obtained Green’s function solution and superposition principle, the coupled field of the orthotropic piezoelectric plate subjected to an arbitrary electro-mechanical load can be solved. Numerical results indicate that the convergence and precision of the method are quite good. A concise skill without repeated calculations is also presented for acquiring the coupled fields in the orthotropic piezoelectric plates with various thickness, which facilitates the effective design of plate thickness in plate-type piezoelectric devices. Finally, some valuable conclusions for the fine design of plate-type piezoelectric sensors, energy harvesters and actuators are presented based on the numerical results.

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A novel plate type linear piezoelectric actuator using dual-frequency drive

Cited by 18 publications

References 31 publications

Characteristics analysis of a plate type linear piezoelectric actuator based on a point contact model

Characteristics analysis of a plate type linear piezoelectric actuator based on a point contact model

A stick-slip actuator for suppressing the backward motion by introducing a flexible beam

A method for the coupled field of an orthotropic piezoelectric plate subjected to an arbitrary electro-mechanical load

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