Design and experimental performances of a piezoelectric linear actuator by means of lateral motion

Li, Jianping; Zhou, Xiaoqin; Zhao, Hongwei; Shao, Mingkun; Hou, Pengliang; Xu, Xiuquan

doi:10.1088/0964-1726/24/6/065007

Cited by 114 publications

(61 citation statements)

References 15 publications

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“…This has been realised in moving actuator motors through a suitable geometric design by Rass and Kortschack [112], and by making the actuator exert a force with a certain normal component by Cheng et al [149] and Wen et al [150]. Such a setup can also be used in fixed actuator motors, where a suitable suspension of the slider-as in the motor by Li et al [151]-can reduce the effect of the acceleration on the normal force. As this effect is geometrically determined, it is directional: when the motor moves in one direction, the normal force is increased during the propulsion phase and reduced during the retraction phase, as desired.…”

Section: Generation and Variation Of Normal Forcementioning

confidence: 99%

Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives

Hunstig

2017

Actuators

121

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Piezoelectric inertia motors-also known as stick-slip motors or (smooth) impact drives-use the inertia of a body to drive it in small steps by means of an uninterrupted friction contact. In addition to the typical advantages of piezoelectric motors, they are especially suited for miniaturisation due to their simple structure and inherent fine-positioning capability. Originally developed for positioning in microscopy in the 1980s, they have nowadays also found application in mass-produced consumer goods. Recent research results are likely to enable more applications of piezoelectric inertia motors in the future. This contribution gives a critical overview of their historical development, functional principles, and related terminology. The most relevant aspects regarding their design-i.e., friction contact, solid state actuator, and electrical excitation-are discussed, including aspects of control and simulation. The article closes with an outlook on possible future developments and research perspectives.

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Section: Generation and Variation Of Normal Forcementioning

confidence: 99%

Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives

Hunstig

2017

Actuators

121

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“…Depending on the structure, while converting a deformation into tangential motion, a leverage mechanism could amplify the deformation. The amplified deformation could also have a normal component [25,26]. Nevertheless, having a normal component at the interface could make a motor In other types of structures, two sets of actuators placed next to each other make "clamp-push and release" actions in sequence [23,24].…”

Section: Inertia-drivementioning

confidence: 99%

“…Depending on the structure, while converting a deformation into tangential motion, a leverage mechanism could amplify the deformation. The amplified deformation could also have a normal component [25,26]. Nevertheless, having a normal component at the interface could make a motor have direction-dependent performance parameters, such as generated force and velocity, which should be compensated with magnitude and timing of a driving signal.…”

Section: Inertia-drivementioning

confidence: 99%

Piezoelectric Motor Using In-Plane Orthogonal Resonance Modes of an Octagonal Plate

Spanner

Koç

2018

Actuators

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Piezoelectric motors use the inverse piezoelectric effect, where microscopically small periodical displacements are transferred to continuous or stepping rotary or linear movements through frictional coupling between a displacement generator (stator) and a moving (slider) element. Although many piezoelectric motor designs have various drive and operating principles, microscopic displacements at the interface of a stator and a slider can have two components: tangential and normal. The displacement in the tangential direction has a corresponding force working against the friction force. The function of the displacement in the normal direction is to increase or decrease friction force between a stator and a slider. Simply, the generated force alters the friction force due to a displacement in the normal direction, and the force creates movement due to a displacement in the tangential direction. In this paper, we first describe how the two types of microscopic tangential and normal displacements at the interface are combined in the structures of different piezoelectric motors. We then present a new resonance-drive type piezoelectric motor, where an octagonal plate, with two eyelets in the middle of the two main surfaces, is used as the stator. Metallization electrodes divide top and bottom surfaces into two equal regions orthogonally, and the two driving signals are applied between the surfaces of the top and the bottom electrodes. By controlling the magnitude, frequency and phase shift of the driving signals, microscopic tangential and normal displacements in almost any form can be generated. Independently controlled microscopic tangential and normal displacements at the interface of the stator and the slider make the motor have lower speed-control input (driving voltage) nonlinearity. A test linear motor was built by using an octagonal piezoelectric plate. It has a length of 25.0 mm (the distance between any of two parallel side surfaces) and a thickness of 3.0 mm, which can produce an output force of 20 N.

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“…The stick-slip actuator proposed in reference [28] included a bridge-type flexure hinge mechanism and a parallel flexure hinge mechanism, the former could be used to adjust the normal force during the working process, but the overall mechanism is a little bulky. Li [29] used the lateral motion of a parallelogram-type flexure hinge mechanism to design the piezoelectric actuator, the maximal velocity reached 14.25 mm/s, the structure was simple but loose. Cheng [30] proposed a trapezoid-type stick-slip actuator, the lateral motion is realized by the deformation of the trapezoid beam, the normal force could be adjusted by the axial motion, the structure is compact, but the theoretical analysis for this structure is difficult due to the irregularity of the trapezoid beam.…”

Section: Introductionmentioning

confidence: 99%

A novel stick-slip based linear actuator using bi-directional motion of micropositioner

Guo

Tian

Zhang

et al. 2019

Mechanical Systems and Signal Processing

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A stick-slip based linear actuator was proposed in this paper, which applied the axial motion of the micropositioner to adjust the preload, and the lateral motion to drive the slider. The bi-directional motion of the micropositioner was realized through the asymmetric structure of a flexure-based mechanism, which includes two right circular flexure hinges and four leaf-spring flexure hinges. The static analysis, kinematic analysis and optimization design were successively implemented on the flexure-based mechanism. The Finite Element Analysis (FEA) proved the flexure-based mechanism could generate the bi-directional motion as designed. A prototype of the linear actuator was developed and the measuring system was constructed. A modified sawtooth wave with a cycloid fall curve was designed to improve the output property. The experimental results showed the modified sawtooth wave generated larger velocity than the traditional sawtooth wave in same driving voltages, fall times, driving frequencies and loads. The amplification coefficient and resolution of the proposed linear actuator in single step were 3.16 and 60 nm, respectively. The maximal velocity was 26.2 mm/s with the modified sawtooth wave in driving frequency of 500 Hz.

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Design and experimental performances of a piezoelectric linear actuator by means of lateral motion

Cited by 114 publications

References 15 publications

Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives

Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives

Piezoelectric Motor Using In-Plane Orthogonal Resonance Modes of an Octagonal Plate

A novel stick-slip based linear actuator using bi-directional motion of micropositioner

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