A Novel Impact Rotary–Linear Motor Based on Decomposed Screw-Type Motion of Piezoelectric Actuator

Han, Liling; Yu, Liandong; Pan, Chengliang; Hu, Zhao; Jiang, Yizhou

doi:10.3390/app8122492

Cited by 11 publications

(5 citation statements)

References 30 publications

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“…Unlike rotary to linear ones, direct linear motion actuators have no transmission elements and provide high accuracy, resolution, and speed. There are various types, viz., iron core linear motors, U-channel linear motors, linear shaft motors, voice coil motors, linear motion solenoids, screw-type linear piezoelectric actuators [38], and electromagnetic clutches. The stator and forcer (called rotor), with a permanent magnet and electromagnetic coils, respectively, create linear force.…”

Section: Introductionmentioning

confidence: 99%

Functionality Analysis of Electric Actuators in Renewable Energy Systems—A Review

Redekar

Deb

Ožana

2022

Sensors

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Various mechanical, hydraulic, pneumatic, electrical, and hybrid actuators can alter motion per the requirements of particular applications. However, except for electrical ones, all actuators are restricted due to their size, complex auxiliary equipment, frequent need for maintenance, and sluggish environment in renewable applications. This brief review paper highlights some unique and significant research works on applying electrical actuators to renewable applications. Four renewable energy resources, i.e., solar, wind, bio-energy, and geothermal energy, are considered to review electric actuators applicable to renewable energy systems. This review analyses the types of actuators associated with the mentioned renewable application, their functioning, their motion type, present use, advantages, disadvantages, and operational problems. The information gathered in this paper may open up new ways of optimization opportunities and control challenges in electrical actuators, thereby making more efficient systems. Furthermore, some energy-efficient and cost-effective replacements of convectional actuators with new innovative ones are suggested. This work aims to benefit scientists and new entrants working on actuators in renewable energy systems.

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Section: Introductionmentioning

confidence: 99%

Functionality Analysis of Electric Actuators in Renewable Energy Systems—A Review

Redekar

Deb

Ožana

2022

Sensors

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“…Han et al reported on the rotary-linear actuator that has a piezoelectric tube with helical electrodes [23]. The actuator operation principle is based on the excitation of the first longitudinal and the first torsional vibration modes.…”

Section: Introductionmentioning

confidence: 99%

Development of 5-DOF Piezoelectric Actuator for Planar—Angular Positioning

2022

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A novel five degrees of freedom (5-DOF) piezoelectric actuator is proposed and analyzed in this paper. The actuator can provide unlimited self-motion in the plane and angular positioning of the spherical payload. The actuator is composed of a cylindrical bronze frame and a piezo ceramic ring glued on top of the cylinder. The cylinder has three cut-outs used to form three supports. The top electrode of the piezo ceramic ring is divided into six equal sections. Three electrodes are used to control the direction of the planar motion, while the remaining three electrodes allow controlling angular motion. The planar motion of the actuator is induced by employing radial vibrations of the supports, while the rotational motion of the sphere is obtained when radial vibrations of the corresponding sections of the piezo ceramic ring are excited. The proposed design of the actuator allows reducing coupling between vibrations of the different segments and ensures the possibility to obtain 5-DOF motion. The piezoelectric actuator is excited using a single harmonic signal switched between electrodes via a digitally controlled switch box. The numerical and experimental studies of the actuator were performed, and the operating principle was validated. The maximum linear velocity of 19.8 mm/s and angular speed of 31.3 RPM were obtained when the payload of 55.68 g and excitation voltage of 200 Vp-p was applied.

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“…On the other hand, few dualfunction piezoelectric actuators and motors are proposed [21,22]. However, in most cases, these devices can provide angular and planar motion of the cylinder-shaped slider [23,24]. This paper represents a novel 5-DOF piezoelectric robot that can provide unlimited 2-DOF planar motion and 3-DOF angular motion of the payload independently.…”

Section: Introductionmentioning

confidence: 99%

Triangular-Shaped 5-DOF Piezoelectric Robot for Optical Lens Positioning

2022

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The paper represents numerical and experimental investigations on a 5-DOF piezoelectric robot that can provide rotary and planar motions of the payload. The design of the robot is based on a single piezoelectric ring and a triangular-shaped passive layer made from stainless steel. Six semispherical contacts of alumina oxide were used as contact points for rotary and planar motions. Finally, the top electrode of the piezo ceramic ring was divided into six equal segments to control the 3-DOF angular and 2-DOF planar motions of the payload. Two harmonic signals of different frequencies are used to drive the piezoelectric robot. The robot operation is based on the excitation of the third radial vibration mode of the ring and the first bending mode of the trapezoidal-shaped cantilever. Motion control is performed by switching electric signals between the particular segments of the piezoelectric ring. A numerical investigation was performed to validate the operation principle of the robot and to analyze electrical and mechanical characteristics. Numerical investigations showed that the first bending mode of trapezoidal cantilevers and the third radial mode of the piezo ceramic ring were obtained at a frequency of 13.79 kHz and 95.75 kHz, respectively. Moreover, it was revealed that the coupling ratio between vibration amplitudes of passive and active segments is more than 4 times. The prototype of the piezoelectric robot was made and an experimental study was performed to validate the operating principle of the robot, as well as to investigate the dynamic characteristics. The investigation showed that the highest velocity of the planar motion is 22.3 mm/s while the maximum angular motion speed is 29.3 RPM when an excitation voltage of 200 Vp-p and payload of 25.1 g was applied.

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A Novel Impact Rotary–Linear Motor Based on Decomposed Screw-Type Motion of Piezoelectric Actuator

Cited by 11 publications

References 30 publications

Functionality Analysis of Electric Actuators in Renewable Energy Systems—A Review

Functionality Analysis of Electric Actuators in Renewable Energy Systems—A Review

Development of 5-DOF Piezoelectric Actuator for Planar—Angular Positioning

Triangular-Shaped 5-DOF Piezoelectric Robot for Optical Lens Positioning

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