A novel linear piezoelectric actuator with two working principles of standing and traveling wave vibration mode

Yuan, Songmei; Zhu, Cong; Chu, Xiangcheng; Zhao, Yifei; Amin, Muhammad; Fan, Yanglei

doi:10.1063/1.4933435

Cited by 20 publications

(7 citation statements)

References 28 publications

(21 reference statements)

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“…The prefabricated piezoelectric actuators were obtained from Thor Labs Company, and have the following characteristics: a displacement range of 450 microns, a hysteresis effect larger than 15%, and a curie temperature of 230 • C. Although in this study the actuator motion is usually ruled by a single oscillating mode [19][20][21], this is commonly used as a simplified form of mathematical representation, typically presented as a partial differential equation. This simplified form satisfies an ordinary differential equation based on applying a spatial discretization method, which is obtained using Galerkin's method [22][23][24].…”

Section: Gripper Based On Parallel Arrange Of Piezoelectric Actuatorsmentioning

confidence: 99%

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Robust Control of a Bimorph Piezoelectric Robotic Manipulator Considering Ellipsoidal-Type State Restrictions

et al. 2022

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The current study presents an adaptive control approach to solve the tracking trajectory problem for a robotic manipulator that uses a gripper based on bimorph piezoelectric actuators. The development of an adaptive gain state feedback form that considers the state restrictions is proposed using a novel class of barrier Lyapunov function that drives the effective control of joints and piezoelectric actuators. The proposed method allows for the inclusion of complex combinations of state restrictions in the Lyapunov function, yielding the construction of differential forms for the gains in the controller that can handle the evolution of trajectories of the robotic arm inside the restricted region. The proposed control design successfully tracks reference trajectories for both joints of the robotic arm as well as the motion of the piezoelectric device during several operative scenarios. A comprehensive experimental study evaluates the effect of introducing state-dependent gain considering state restrictions of the ellipsoidal type. The comparison of the mean square error confirms the contributions of the developed control action, showing better tracking quality for less control power with the same evaluation, which is a desirable characteristic in the controlled motion of micromanipulators. The proposed controller solves the tracking trajectory problem for the micromanipulation system, satisfies the motion restrictions, and allows better tracking performance to be enforced. Furthermore, comparison of the obtained trajectories seems to validate the proposed controller’s contribution concerning a feedback form with fixed gains.

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Section: Gripper Based On Parallel Arrange Of Piezoelectric Actuatorsmentioning

confidence: 99%

“…The application of the result derived in (19) to the expression of ( 18) leads to the following description of the derivative of V ∆, K, t :…”

Section: The Control Challengementioning

confidence: 99%

Robust Control of a Bimorph Piezoelectric Robotic Manipulator Considering Ellipsoidal-Type State Restrictions

et al. 2022

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“…Ci et al [17] proposed an ultrasonic motor working in a plane diagonal bending mode with a speed of 165 mm s −1 . Yuan et al [18] proposed an ultrasonic motor that can work in two modes of travelling and standing wave, and the speed was 292 mm s −1 . Jian and Li et al [19,20] developed a variety of V-type linear ultrasonic motors with output speeds exceeding 1000 mm s −1 .…”

Section: Introductionmentioning

confidence: 99%

Development of a high-resolution, high-speed impact piezoelectric actuator using cross-frequency band method

Li¹,

Li²,

Mingfei³

et al. 2022

Smart Mater. Struct.

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A novel impact piezoelectric actuator is proposed in this paper to achieve cross-scale driving, which can realise high resolution and high speed. The piezoelectric actuator is mainly composed of four diamond-shaped flexible hinges, which can consider a certain stiffness and flexibility. The operating principle of the piezoelectric actuator is introduced. The actuator is excited by two sinusoidal waves with a frequency ratio of 1:2 to achieve impact drive at quasi static state. The appropriate structural parameters are obtained by simulation. The actuator is designed to make the frequency ratio of first and second vibration modes 1:2, which can achieve impact drive at resonant state. The prototype is fabricated, and the characteristics are tested. The measured resonant frequency ratio is consistent with the simulated value. Experimental results show that when the prototype works at quasi-static state, the resolution is 37 nm with driving voltages of 12 Vp-p; at resonant state, the no-load maximum speed is 125.43 mm/s and the maximum load is 0.5 N when the driving frequency and voltages are 1.95 kHz, 40 Vp-p and 3.90 kHz, 160 Vp-p, respectively. The proposed actuator can be used for precision positioning and can improve the accuracy and the efficiency of processing instruments.

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“…When the target motion form was determined, the combination of mode shapes could produce effective traveling wave mode motion. Yuan et al [23] proposed a new type of linear piezoelectric actuator operating in traveling-wave mode by changing the input signal that the speed could attain 161 mm s −1 and the driving force was 1.46 N. Wang et al [24] proposed a rod-type linear ultrasonic motor utilizing longitudinal traveling waves. The rod-type stator was modeled by the transfer matrix method.…”

Section: Introductionmentioning

confidence: 99%

Design and investigation of a new piezoelectric beam transportation device based on two-mode excitation

Zhu¹,

Li²,

Wang³

et al. 2021

Smart Mater. Struct.

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A new piezoelectric beam transportation device is designed and its dynamic characteristics are investigated for object transportation in this paper. Based on the Euler-Bernoulli beam theory and Lagrange equation, the theoretical model is established, in which Chebyshev polynomials are adopted as the admissible displacement function. First, the correctness of the model was verified by ANSYS software, and good convergence and accuracy were shown. Then, the influence of excitation parameters and piezoelectric patches on traveling wave generation was studied by response simulation. And finally, the effects of excitation frequency, voltage amplitude, phase, position, and the number of supporting legs on transportation speed were investigated by setting up an experimental device. The results indicated that excitation parameters impact transportation speed extremely. What's more, the excitation frequency should be the median of adjacent natural frequencies, and the phase should be orthogonal for transportation speed and stability in unison.

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A novel linear piezoelectric actuator with two working principles of standing and traveling wave vibration mode

Cited by 20 publications

References 28 publications

Robust Control of a Bimorph Piezoelectric Robotic Manipulator Considering Ellipsoidal-Type State Restrictions

Robust Control of a Bimorph Piezoelectric Robotic Manipulator Considering Ellipsoidal-Type State Restrictions

Development of a high-resolution, high-speed impact piezoelectric actuator using cross-frequency band method

Design and investigation of a new piezoelectric beam transportation device based on two-mode excitation

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