A novel linear inertial piezoelectric actuator based on asymmetric clamping materials

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

doi:10.1016/j.sna.2019.111746

Cited by 38 publications

(19 citation statements)

References 19 publications

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“…Therefore, the clamping force varies and depends on the load condition for the intermittent mechanism, while the continuous mechanism can only generate a constant clamping force. The clamping structure can be a piezoelectric stack [ 108 , 115 , 116 ], electromagnetic in nature [ 49 , 117 ], an inertial mass [ 118 , 119 ], or a wedge-type clamping mechanism [ 111 , 120 ]. To increase the velocity of the motion, the stroke of the moving block can be amplified using a flexure mechanism, as mentioned earlier, in Section 3.1 [ 90 , 91 ].…”

Section: Quasi-static Stepped Motionmentioning

confidence: 99%

Large-Scale Piezoelectric-Based Systems for More Electric Aircraft Applications

Lubecki

Chow

et al. 2021

Micromachines

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A new approach in the development of aircraft and aerospace industry is geared toward increasing use of electric systems. An electromechanical (EM) piezoelectric-based system is one of the potential technologies that can produce a compactable system with a fast response and a high power density. However, piezoelectric materials generate a small strain, of around 0.1–0.2% of the original actuator length, limiting their potential in large-scale applications. This paper reviews the potential amplification mechanisms for piezoelectric-based systems targeting aerospace applications. The concepts, structural designs, and operation conditions of each method are summarized and compared. This review aims to provide a good understanding of piezoelectric-based systems toward selecting suitable designs for potential aerospace applications and an outlook for novel designs in the near future.

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Section: Quasi-static Stepped Motionmentioning

confidence: 99%

Large-Scale Piezoelectric-Based Systems for More Electric Aircraft Applications

Lubecki

Chow

et al. 2021

Micromachines

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“…Kinetic to electrical energy conversion can be achieved using various smart materials, including piezoelectric materials [4,5], dielectric elastomers [6], shape memory alloys [7], electrorheological fluids [8], magnetorheological fluids [9], magneto rheological elastomers [10,11], and magnetostrictive materials [12,13].…”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting Using a Magnetostrictive Transducer Based on Switching Control

GOTO

KOBAYASHI

et al. 2022

SSRN Journal

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“…Shen et al presented an inertial piezoelectric actuator based on asymmetric clamping materials. A minimum step displacement of the actuator under 2 μm can be achieved under a voltage of 15 V [18]. Bao et al presented an inertial piezoelectric actuator equipped with different combinations of asymmetrical clamping structures and bias unit.…”

Section: Introductionmentioning

confidence: 99%

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

Jiang

et al. 2021

IEEE Access

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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.

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A novel linear inertial piezoelectric actuator based on asymmetric clamping materials

Cited by 38 publications

References 19 publications

Large-Scale Piezoelectric-Based Systems for More Electric Aircraft Applications

Large-Scale Piezoelectric-Based Systems for More Electric Aircraft Applications

Energy Harvesting Using a Magnetostrictive Transducer Based on Switching Control

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

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