A Novel Piezoelectric Inchworm Actuator Driven by One Channel Direct Current Signal

Wang, Renming; Hu, Yili; Shen, Dezhu; Ma, Jijie; Wen, Jianming

doi:10.1109/tie.2020.2975493

Cited by 64 publications

(18 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1][2][3] It is estimated that by 2025, more than two-thirds of the world's population will face severe imbalances between water requirements and supplies, especially in Asia and Africa. 4 Following the sustainable development, various green energy sources have been researched to produce electricity (piezoelectricity, [5][6][7] wind power generation, 8 hydro power, 9 photovoltaics, [10][11][12] and thermoelectricity [13][14][15][16] ) and freshwater (reverse osmosis, 17 ion exchange, 18 catalytic oxidation, [19][20][21] and solar evaporation [22][23][24][25][26] ). However, separate development inevitably causes high costs, low energy utilization efficiency and a large footprint to achieve both goals.…”

Section: Introductionmentioning

confidence: 99%

A robust starch–polyacrylamide hydrogel with scavenging energy harvesting capacity for efficient solar thermoelectricity–freshwater cogeneration

Zhou

Wang

et al. 2022

Energy Environ. Sci.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

A robust starch–polyacrylamide hydrogel with scavenging energy harvesting capacity for efficient solar thermoelectricity–freshwater cogeneration

Zhou

Wang

et al. 2022

Energy Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…Piezoelectric actuators (PEAs) have the merits of strong electromagnetic compatibility, small size, high control precision, large output force, flexible design, and selflocking, etc. [1][2][3][4]. They are often widely used in precision manufacturing [5][6][7], aerospace, biomedical engineering, and other fields [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Design and Locomotion Study of Stick-Slip Piezoelectric Actuator Using Two-Stage Flexible Hinge Structure

Zhao

et al. 2021

Micromachines

View full text Add to dashboard Cite

A novel piezoelectric actuator using a two-stage flexure hinge structure is proposed in this paper, which is used in a compact and high-precision electromechanical field. The two-stage flexure hinge structure is used to provide horizontal thrust and vertical clamping force to the driving feet, which solves the problems of unstable clamping force and insufficient load capacity in traditional stick-slip piezoelectric actuators. Firstly, the main structure of the driver and the working process under the triangular wave excitation voltage are briefly introduced. Secondly, after many simulation tests, the structure of the actuator is optimized and the stability of the structure in providing clamping force is verified. Finally, through the research of the operating performance, when the amplitude is 150 V and the frequency is 3.25 kHz as the excitation source, the maximum speed can reach 338 mm/s and can bear about 3 kg load. It can be seen from the analysis that the two-stage flexure hinge structure can improve the displacement trajectory.

show abstract

“…Theoretically, drawback can be eliminated if friction is greater than the driving force in backward direction. Researchers have originated many ways to eliminate or reduce drawback [29]- [36]. Some researchers adjust the driving force of backward to match to the friction by changing the voltage [22], [24], [29]- [30].…”

Section: Introductionmentioning

confidence: 99%

A Piezoelectric Linear Actuator Controlled by the Reversed-Phase Connection of Two Bimorphs

Jiang

et al. 2021

IEEE Access

Self Cite

View full text Add to dashboard Cite

A linear actuator controlled by the reversed-phase connection of two piezoelectric bimorphs is proposed in this study to solve the problem of drawback in the existing piezoelectric linear actuators. The actuator is driven by one excitation signal, the two piezoelectric bimorphs will always bend in opposite directions by the reversed-phase connection, so the directions of the force output by the two piezoelectric bimorphs are opposite. Because of the length difference of the clamping blocks, the two forces outputted by each bending is different in magnitude, and always have a resultant force in the same direction to make the actuator move forward two steps in one cycle without drawback. A series of experiments were conducted to evaluate the performance of the actuator provided. The starting voltage is 40 Vp-p, resolution can reach 1.16μm without load. The load capacity of the actuator is 450 g with a 100 Vp-p voltage, a 2-Hz frequency, and the average step displacement in this case is 0.725 μm. The prototype has high linearity and good repeatability. Experiments have proved that the actuator controlled by reversed-phase connection can eliminate drawback in principle, and can move forward two steps in one cycle. The resolution of the prototype by the reversedphase connection is much higher than the in-phase connection, and it is a new method to improve the driving performance of piezoelectric actuators.

show abstract

A Novel Piezoelectric Inchworm Actuator Driven by One Channel Direct Current Signal

Cited by 64 publications

References 29 publications

A robust starch–polyacrylamide hydrogel with scavenging energy harvesting capacity for efficient solar thermoelectricity–freshwater cogeneration

A robust starch–polyacrylamide hydrogel with scavenging energy harvesting capacity for efficient solar thermoelectricity–freshwater cogeneration

Design and Locomotion Study of Stick-Slip Piezoelectric Actuator Using Two-Stage Flexible Hinge Structure

A Piezoelectric Linear Actuator Controlled by the Reversed-Phase Connection of Two Bimorphs

Contact Info

Product

Resources

About