A two-layer linear piezoelectric micromotor

Li, Xiaotian; Ci, Penghong; Liu, Guoxi; Dong, Shuxiang

doi:10.1109/tuffc.2014.006796

Cited by 40 publications

(17 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the working mode of PZT, LUSMs have been classified into bonded-type motors [5][6][7][8][9][10][11][12] and bolt-clamped-type motors [13][14][15][16][17][18][19][20]. Recently, bonded-type motors, which are small in size, have attracted many researchers' interests, but their extremely low thrust is a serious drawback.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, bonded-type motors, which are small in size, have attracted many researchers' interests, but their extremely low thrust is a serious drawback. In particular, some kinds of bonded-type motors' thrusts are below 1 N [5][6][7][8], while a few of the bonded-type motors' thrusts have been improved to reach a value of less than 10 N [9][10][11][12]. Moreover, the excitation voltage, applied on the ceramics, has a limit due to the insulation and weakness of the bond.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Research on a Linear Piezoelectric Actuator Using T-Shape Transducer to Realize High Mechanical Output

et al. 2016

View full text Add to dashboard Cite

Abstract:A modified large thrust ultrasonic linear motor using a T-shape configuration composed of two orthogonal sandwich-type transducers has been proposed in this paper. It is an improved version of a previous T-shape motor. The vertical transducer is used to generate the normal force between the driving foot and slider, while the other push-pull-type horizontal transducer is applied to generate driving force to push the working platform. By superimposing the two longitudinal vibrations, the proposed motor generates an elliptical movement on the driving foot. In order to improve the vibration characteristics and amplify the driving vibration amplitude, the shape of the driving foot and horn have been redesigned and optimized. The finite element method (FEM) is used to adjust the structural parameters to degenerate the two working mode frequencies. The prototype has been fabricated and its mechanical output ability has been measured. The output characteristics of the modified motor, compared with the previous T-shape motor, achieve a relatively high level. The typical no-load speed and maximum output thrust of the prototype are 0.83 m/s and 56 N under an exciting voltage of 150 V rms .

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on a Linear Piezoelectric Actuator Using T-Shape Transducer to Realize High Mechanical Output

et al. 2016

View full text Add to dashboard Cite

show abstract

“…According to the output motion modes, piezoelectric motors can currently be classified into: rotary [4][5][6][7][8], linear [9][10][11][12][13] and multi-degree-of-freedom motors [14][15][16][17][18]. The first type has attracted more attention because of its higher applicability in the above system.…”

Section: Introductionmentioning

confidence: 99%

A Novel Rotary Piezoelectric Motor Using First Bending Hybrid Transducers

Liu

et al. 2015

Applied Sciences

View full text Add to dashboard Cite

Abstract:We report a novel rotary piezoelectric motor using bending transducers in this work. Three transducers are used to drive a disk-shaped rotor together by the elliptical movements of their driving tips; these motions are produced by the hybrid of two first bending vibration modes. The proposed piezoelectric transducer has a simple structure as it only contains an aluminum alloy beam and four pieces of PZT plates. Symmetrical structure is the only necessary condition in the design process as it will ensure the resonance frequencies of the two orthogonal first bending modes are equal. Transducers with first bending resonance frequency of about 53 kHz were fabricated and assembled into a rotary motor. The proposed motor exhibits good performance on speed and torque control. Under a working frequency of 53.2 kHz, the maximum no-load speed and the maximum torque of the prototype are tested to be 53.3 rpm and of 27 mN·m.

show abstract

“…Over the past decade, the linear piezoelectric motors have a very significant development and excellent performance, as shown in Table 1 [1]- [19]. If we do not consider the size and the driving condition of the piezoelectric linear motors, their linear moving fastest is a high-power linear ultrasonic motor using bending vibration Table 1.…”

Section: Introductionmentioning

confidence: 99%

“…If we do not consider the size and the driving condition of the piezoelectric linear motors, their linear moving fastest is a high-power linear ultrasonic motor using bending vibration Table 1. The performance comparison of the linear piezoelectric motors [1]- [19]. [19] transducer [15], the ultrasonic linear motor using traveling surface acoustic wave [6] and a linear ultrasonic motor using push-pull type L-B hybrid Langevin transducer with single foot [3].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Linear Piezoelectric Motor of Mode Shape

Jou¹

2015

OJA

View full text Add to dashboard Cite

In this paper, we want to make a new type linear piezoelectric motor by mode shape coating or effective electrode surface coating. The mode shape is derived from the mechanical boundary conditions of the linear piezoelectric motor. We only have access to the first three modes of formas, the effective electrode surface coating basis, as well as with the linear piezoelectric motor of normal shape do comparison. Next, we will inspect their gain or axial velocity through theoretical analysis, simulation and experiment. According to the results of the theoretical analysis, we have found that the gain or axial velocity of the linear piezoelectric motors of mode shape is much larger than the linear piezoelectric motors of normal shape. However, according to the results of simulation and experiments, we have found that the gain or axial velocity of the linear piezoelectric motors of mode shape is much greater than the linear piezoelectric motors of normal shape, which is about 1.2 to 1.4 times. The linear piezoelectric motor of mode shape 3 has the fastest axial velocity, which is about −48 mm/s and 48 mm/s under conditions of 180 Vp−p driving voltage, 21.2 kHz driving frequency (the third vibration modal), 25 gw loading and the position of loading or mass at x = 5 mm & 45 mm respectively. And its axial velocity is about 1.4 times the linear piezoelectric motor of normal shape under the same conditions. Overall, the mode shape coating helps to enhance the gain or axial velocity of the linear piezoelectric motor.

show abstract

A two-layer linear piezoelectric micromotor

Cited by 40 publications

References 21 publications

Research on a Linear Piezoelectric Actuator Using T-Shape Transducer to Realize High Mechanical Output

Research on a Linear Piezoelectric Actuator Using T-Shape Transducer to Realize High Mechanical Output

A Novel Rotary Piezoelectric Motor Using First Bending Hybrid Transducers

A Study on the Linear Piezoelectric Motor of Mode Shape

Contact Info

Product

Resources

About