A stick-slip piezoelectric actuator with suppressed backward motion achieved using an active locking mechanism (ALM)

Dong, Jing; Zhang, Bowen; Li, Xiao-Tao; Xu, Zhi; Wang, Jiru; Yi, Cao

doi:10.1088/1361-665x/ac0cbd

Cited by 23 publications

(10 citation statements)

References 36 publications

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“…Large preload force of the rotor and the large mass of the inertia block can reduce the rollback motion and increase the load capacity of the inertia motor. As for the seal motors composed of one feeding module, one clamping module and one locking component, the properties of the structure, oscillation, and velocity as well as the complexity of control system are at an intermediate level between those of the inchworm motors and inertia motors [83][84][85][86][87][88][89][90][91][92][93][94][95][96][97][98][99][100].…”

Section: Characteristics Of Stepping Piezoelectric Motorsmentioning

confidence: 99%

See 1 more Smart Citation

Bionic Stepping Motors Driven by Piezoelectric Materials

et al. 2022

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By imitating the behavioral characteristics of some typical animals, researchers develop bionic stepping motors to extend the working range of piezoelectric materials and utilize their high accuracy advantage as well. A comprehensive review of the bionic stepping motors driven by piezoelectric materials is presented in this work. The main parts of stepping piezoelectric motors, including the feeding module, clamping module, and other critical components, are introduced elaborately. We classify the bionic stepping piezoelectric motors into inchworm motors, seal motors, and inertia motors depending on their main structure modules, and present the mutual transformation relationships among the three types. In terms of the relative position relationships among the main structure modules, each of the inchworm motors, seal motors, and inertia motors can further be divided into walker type, pusher type, and hybrid type. The configurations and working principles of all bionic stepping piezoelectric motors are reported, followed by a discussion of the advantages and disadvantages of the performance for each type. This work provides theoretical support and thoughtful insights for the understanding, analysis, design, and application of the bionic stepping piezoelectric motors.

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Section: Characteristics Of Stepping Piezoelectric Motorsmentioning

confidence: 99%

“…In addition, the pusher motor is provided with a high speed due to the light weight of the rotor . Clearly, the characteristics of the hybrid motor are at an intermediate level between those of the walker motor and the pusher motor [95][96][97][98][99][100].…”

Section: Characteristics Of Stepping Piezoelectric Motorsmentioning

confidence: 99%

Bionic Stepping Motors Driven by Piezoelectric Materials

et al. 2022

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“…Electronic motors can be mainly divided into 'stick-slip' drive type [26] and smooth impact type. Generally, both use asymmetric electrical signals (sawtooth waves) to excite the inertial impact block to generate asymmetric periodic motion to drive the motor to achieve motion [27]. In 2019, Huang and Sun [28] designed a piezoelectric brake based on the stick-slip principle.…”

Section: Introductionmentioning

confidence: 99%

Research on variable stiffness asymmetrical resonant linear piezoelectric actuator based on multi-modal drive

He,

Yue,

Dou

et al. 2023

Smart Mater. Struct.

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In this paper, a linear piezoelectric motor with variable stiffness and asymmetric resonance is proposed, which is driven by a single harmonic signal. Working in the resonant state improve the output performance of the motor. Motor control is relatively simple and can realize reverse movement under the driving of second-order single harmonic signal. At the same time, the new motor can obtain different operating speed and step distance by changing the clamping position in front and back to meet the requirements of different loads and different working conditions and has strong applicability. By experiment, the first-order optimal operating frequency of the motor prototype at three different stiffness adjustment positions is 88 Hz, 90 Hz and 92 Hz respectively. Under the excitation of 240 Vp–p first-order resonance signal, the corresponding output speed of the motor prototype is 16.116 mm s−1, 20.457 mm s−1 and 25.015 mm s−1 respectively, and the corresponding displacement resolution is 0.18 mm, 0.22 mm and 0.27 mm respectively. When the stiffness adjustment positions is 2 mm, the maximum load of the motor prototype reaches 450 g. The second-order optimal operating frequency at the stiffness adjustment positions 1 mm is 601 Hz. Under the excitation of a 240 Vp–p second-order resonant signal, the reverse output speed of the motor prototype is 13.126 mm s−1, and the corresponding displacement resolution is 0.02 mm.

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“…Bionic piezoelectric inchworm actuators have important applications in bioengineering, microassembly, aerospace engineering, micro-electromechanical systems (MEMs), etc [1][2][3][4][5] owing to their advantages of large stroke, high load capacity, and nano-precision [6][7][8][9][10]. In recent years, many studies have been carried on designing novel structures [11][12][13][14][15][16][17][18], achieving superior motion performance [19][20][21], and new actuation methods [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

A novel high-speed bi-directional piezoelectric inchworm actuator based on flexible supported baffles

Sun

Yan

2022

Smart Mater. Struct.

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Typical bionic piezoelectric inchworm actuators utilize at least two clamping PZTs and one driving PZT to achieve bi-directional actuation, resulting in complex structures, complicated electronic systems, and high cost. Actuators with lesser PZTs (1 or 2) can eﬀectively alleviate these problems; however, existing designs are limited to unidirectional or bidirectional low-speed motion. This study proposes a high-speed bi-directional inchworm actuator with two PZTs, where the clamping switching is achieved by only one PZT through innovative use of ﬂexible supported baﬄes and enhanced clamping mechanisms. The design also reduces the six sub-steps of the driving principle (alternate elongation and shortening of three PZTs) required for each step of typical designs to four, thus eﬀectively increasing the maximum speed of the actuation. Experimental results show that the proposed design facilitates bi-directional motions in a stable manner with a maximum speed of 5.1 mm/s, which is approximately 23 times faster than the existing design with two PZTs. The proposed design can eﬀectively expand the application range of dual-piezoelectric inchworm actuators and can ﬁnd a promising application in the ﬁeld of high-speed precision positioning.

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A stick-slip piezoelectric actuator with suppressed backward motion achieved using an active locking mechanism (ALM)

Cited by 23 publications

References 36 publications

Bionic Stepping Motors Driven by Piezoelectric Materials

Bionic Stepping Motors Driven by Piezoelectric Materials

Research on variable stiffness asymmetrical resonant linear piezoelectric actuator based on multi-modal drive

A novel high-speed bi-directional piezoelectric inchworm actuator based on flexible supported baffles

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