A stick–slip piezoelectric actuator with high consistency in forward and reverse motions

2020 ◽  
Vol 91 (10) ◽  
pp. 105005
Author(s):  
Zhi Xu ◽  
Xuan Li ◽  
Kuifeng Wang ◽  
Tianwei Liang ◽  
Jingshi Dong ◽  
...  
Keyword(s):  
Piezoelectric Actuator ◽  
Stick Slip ◽  
High Consistency

scholarly journals A Novel Rotation-Structure Based Stick-Slip Piezoelectric Actuator with High Consistency in Forward and Reverse Motions

Actuators ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 189
Author(s):  
Jizhou Tang ◽  
Jingsong Wei ◽  
Yuming Wang ◽  
Zhi Xu ◽  
Hu Huang
Keyword(s):  
Piezoelectric Actuator ◽  
Piezoelectric Actuators ◽  
Driving Voltage ◽  
Driving Frequency ◽  
Maximum Displacement ◽  
Stick Slip ◽  
Reverse Motion ◽  
Symmetric Structure ◽  
Deviation Rate ◽  
High Consistency

Under the same driving voltage and frequency, the forward and reverse motion inconsistency of stick-slip piezoelectric actuators would bring difficulty for subsequent control. To solve this problem, a rotation-structure based piezoelectric actuator with completely symmetric structure and two driving feet was initially proposed. By testing its output performances under various driving voltages and frequencies, it was confirmed that, although similar speeds could be achieved for forward and reverse motions, the maximum displacement and backward displacement in each step were still quite different. By analyzing the reasons leading to this difference, this actuator was further improved by using only one driving foot. The experimental results showed that the forward and reverse motion consistency of the improved actuator had been significantly improved. The deviation rate was only 1.6%, corresponding to a travel distance of 118.7 μm, obtained under the driving voltage of 100 V and driving frequency of 10 Hz. The comparison with some previously reported actuators further confirmed the advancement of this improved actuator.

scholarly journals Design, Analysis, and Experiment on a Novel Stick-Slip Piezoelectric Actuator with a Lever Mechanism

Micromachines ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 863 ◽  
Author(s):  
Weiqing Huang ◽  
Mengxin Sun
Keyword(s):  
Piezoelectric Actuator ◽  
Simple Structure ◽  
Fast Response ◽  
Displacement Sensor ◽  
Design Parameters ◽  
The Finite Element Method ◽  
Stick Slip ◽  
Lever Mechanism ◽  
Series Of Experiments ◽  
Stator Design

A piezoelectric actuator using a lever mechanism is designed, fabricated, and tested with the aim of accomplishing long-travel precision linear driving based on the stick-slip principle. The proposed actuator mainly consists of a stator, an adjustment mechanism, a preload mechanism, a base, and a linear guide. The stator design, comprising a piezoelectric stack and a lever mechanism with a long hinge used to increase the displacement of the driving foot, is described. A simplified model of the stator is created. Its design parameters are determined by an analytical model and confirmed using the finite element method. In a series of experiments, a laser displacement sensor is employed to measure the displacement responses of the actuator under the application of different driving signals. The experiment results demonstrate that the velocity of the actuator rises from 0.05 mm/s to 1.8 mm/s with the frequency increasing from 30 Hz to 150 Hz and the voltage increasing from 30 V to 150 V. It is shown that the minimum step distance of the actuator is 0.875 μm. The proposed actuator features large stroke, a simple structure, fast response, and high resolution.

Novel Precision PZT-Driven Micropositioning Stage with Large Travel Range

2009 ◽  
Vol 407-408 ◽  
pp. 159-162
Author(s):  
Hua Wei Chen ◽  
Ichiro Hagiwara
Keyword(s):  
Dynamic Model ◽  
Piezoelectric Actuator ◽  
Dynamic Properties ◽  
Flexure Hinge ◽  
Slip Model ◽  
Stick Slip ◽  
Friction Effect ◽  
Simulation Results

One novel long-travel piezoelectric-driven linear micropositioning stage capable of moving in a stepping mode is developed. The stick-slip friction effect between flexure hinge actuation tips with a sliding stage is used to drive the stage step-by-step through an enlarged displacement of piezoelectric actuator. In order to enlarge the travel range, magnifying mechanism is optimally designed by use of flexure hinge and lever beam. Moreover, dynamic model of such stage is proposed by consideration of reset integrator stick-slip model. The simulation results show that the stage has considerable good dynamic properties.

scholarly journals A Novel Stick-Slip Type Rotary Piezoelectric Actuator

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Yuan Wang ◽  
Minglong Xu ◽  
Shubao Shao ◽  
Siyang Song ◽  
Yan Shao
Keyword(s):  
Piezoelectric Actuator ◽  
Experimental System ◽  
Driving Voltage ◽  
Stick Slip ◽  
Piezoelectric Stacks ◽  
Long Stroke ◽  
Fine Resolution ◽  
Stick Slip Motion ◽  
Slip Motion ◽  
Sawtooth Waveform

A novel stick-slip rotary piezoelectric actuator is designed for optical use. The actuator is proposed, fabricated, and tested with the aim of realizing both fine resolution and a long stroke. The dynamic model of the actuator is established, and simulations are performed to discover how the input driving voltage affects the stick-slip motion of the actuator. An experimental system is built to evaluate the performance of the actuator at different frequencies, voltages, and numbers of driving piezoelectric stacks. Experimental results show that the minimal output stepping angle is 3.5 μrad (0.2 millidegrees) under a sawtooth waveform having a voltage of 13 V and frequency of 3000 Hz and that the velocity reaches 0.44 rad/s (25°/s) under a sawtooth waveform having a voltage of 93 V and frequency of 3000 Hz, while the stroke is infinite. The proposed actuator provides stable and accurate rotary motion and realizes a high velocity.

scholarly journals An Umbrella-Shaped Linear Piezoelectric Actuator Based on Stick-Slip Motion Principle

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 157724-157729 ◽  
Author(s):  
Jiafeng Yao ◽  
Junjie Cai ◽  
Yili Hu ◽  
Jianming Wen ◽  
Nen Wan ◽  
...  
Keyword(s):  
Piezoelectric Actuator ◽  
Stick Slip ◽  
Stick Slip Motion ◽  
Slip Motion

A Novel Stick–Slip Piezoelectric Actuator Based on a Triangular Compliant Driving Mechanism

2019 ◽  
Vol 66 (7) ◽  
pp. 5374-5382 ◽  
Author(s):  
Yangkun Zhang ◽  
Yuxin Peng ◽  
Zhenxing Sun ◽  
Haoyong Yu
Keyword(s):  
Piezoelectric Actuator ◽  
Driving Mechanism ◽  
Stick Slip

Evolution of one-stepping characteristics of a stick-slip piezoelectric actuator under various initial gaps

2019 ◽  
Vol 295 ◽  
pp. 348-356 ◽  
Author(s):  
Xiangyuan Wang ◽  
Hu Huang ◽  
Haoyin Fan ◽  
Wuxiang Sun ◽  
Xuan Li ◽  
...  
Keyword(s):  
Piezoelectric Actuator ◽  
Stick Slip

Simple and high-performance stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism

2019 ◽  
Vol 30 (14) ◽  
pp. 2125-2134 ◽  
Author(s):  
Qi Gao ◽  
Meng He ◽  
Xiaohui Lu ◽  
Chi Zhang ◽  
Tinghai Cheng
Keyword(s):  
Piezoelectric Actuator ◽  
High Performance ◽  
Maximum Velocity ◽  
Maximum Load ◽  
Maximum Efficiency ◽  
Flexure Hinge ◽  
Tangential Displacement ◽  
Driving Mechanism ◽  
Stick Slip ◽  
New Type

This article presented a new type of stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism. The key of the driving mechanism was a four-bar mechanism with different minimum thicknesses of right-circle flexure hinges. Combined with a symmetrical indenter, the asymmetrical flexure hinge driving mechanism generated controllable tangential displacement by changing the locking force. Therefore, the simple structured stick-slip piezoelectric actuator achieved considerable improvements especially in output speed and efficiency. In order to obtain improved actuator properties, the minimum thicknesses of asymmetrical flexure hinge driving mechanism, the tangential and normal displacements of the indenter were analyzed and investigated by finite element method. A prototype was fabricated and experiment investigation of the actuator characteristics was presented. Testing results indicated that the actuator achieved the maximum velocity of 15.04 mm/s and its maximum load reached 440 g under a voltage of 100 Vp-p and a frequency of 490 Hz. The maximum efficiency of the actuator was 3.66% with a load of 280 g under a locking force of 5 N and the actuated velocity of 10.17 mm/s.

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