Development of a three-DOF piezoelectric actuator using a thin cross-beam vibrator

Wang, Liang; Quan, Qiquan; Xue, Kailei; Li, He

doi:10.1016/j.ijmecsci.2018.09.039

Cited by 50 publications

(18 citation statements)

References 31 publications

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“…Various type 3DOF actuators have been proposed and developed. Multi-DOF piezoelectric [7,8] and ultrasonic actuators [9][10][11][12] are driven using a mechanical contact. They have a high holding force and a simple structure.…”

Section: Introductionmentioning

confidence: 99%

Experimental Verification of Three-Degree-of-Freedom Electromagnetic Actuator for Image Stabilization

Heya

Hirata

2020

Sensors

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Image deteriorations due to vibrations have become a problem in autonomous systems such as unmanned aerial vehicles, robots, and autonomous cars. To suppress the vibration, a camera stabilizer using a gimbal mechanism is widely used. However, the size and weight of the system increase because the conventional image stabilization systems require some actuators and links to drive in multi-axes. In order to solve these problems, we proposed a novel three-degree-of-freedom (3DOF) electromagnetic actuator for image stabilization. The actuator can be driven by only three-phase and has a simple structure and control system. This paper describes the experimental verification of the proposed actuator. The torque characteristics are clarified, and the analysis and measured torque characteristics are compared to verify the analysis validity. For verifying the dynamic performance, the frequency characteristics are measured. The effectiveness of the proposed magnetic structure and operating principle are investigated.

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Section: Introductionmentioning

confidence: 99%

Experimental Verification of Three-Degree-of-Freedom Electromagnetic Actuator for Image Stabilization

Heya

Hirata

2020

Sensors

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“…Wang and et al reported on the 3-DOF motor based on cross-beam structure [13]. The motor was based on cross-beam shaped stator with 16 piezo ceramic plates which were glued around the free end of each beam.…”

Section: Introductionmentioning

confidence: 99%

Flat Cross-Shaped Piezoelectric Rotary Motor

2020

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A numerical and experimental investigation of a flat, cross-shaped piezoelectric rotary motor is presented. The design and configuration of the motor allow it to be mounted directly to the printed circuit board or integrated into the other system where mounting space is limited. The design of the motor is based on the cross-shaped stator with 16 piezo ceramic plates, which are glued on it. The rotor is placed at the center of the stator and consists of two hemispheres, a shaft, and a preloading spring. Special clamping of the stator was developed as well. It consists of four V-shaped beam structures that allow it to rigidly clamp the stator with reduced damping effect to vibrations. The operation principle of the motor is based on the first in-plane bending mode of the cross-shaped stator. The motor excitation is performed through four harmonic signals, which have a phase difference of π/2. A numerical investigation of the motor was conducted to optimize the geometrical parameters of the stator and to analyze the displacement characteristics of the contacting point. The prototype of the motor was made, and the electrical, as well as rotation speed characteristics of the motor, were measured. The results of the experimental investigation showed that the motor is able to provide a maximum rotation speed of 972.62 RPM at 200 Vp-p when the preload force of 22.65 mN was applied.

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“…The flexure hinge enables smooth and continuous movement via elastic deformation. PZT actuators have been widely used as fine-positioning-devices because of their advantages such as high positioning resolution, high generative force, high response speed and easy miniaturization (Fantoni et al , 2018; Wang et al , 2018; Chen et al , 2019; Jian et al , 2019). Therefore, many studies have been conducted on the design and manufacture of precision-positioning stages using flexure hinges and PZT actuators (Park et al , 2007; Jung and Kim, 2014; Clark et al , 2015; Qin et al , 2019; Tian et al , 2019; Zhang et al , 2020).…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a piezoelectrically driven micropositioning 3-DOF stage with elastic body using a multi-material 3D printer

Baek

Cho

Lee

2020

RPJ

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Purpose This paper aims to propose a method for manufacturing multi-material monolithic structures with flexible materials to construct the elastic body by using a dual-nozzle three-dimensional printer to develop a piezoelectric (PZT)-driven micropositioning stage with three degrees of freedom (3-DOF) and flexure hinges. Design/methodology/approach Polylactic acid (PLA) and nylon were used for the lever structure’s frame and flexure hinge, respectively. Additionally, the stage consisted of three PZT actuators for fine movement in the nanometer scale in 3-DOF (x, y and θ-directions). For the design of the stage, the kinematic analysis model and the finite element method (FEM) analysis was undertaken for comparing between PLA with nylon (multi-material), PLA (single material) and aluminum (conventional-material). In addition, two verification experiments were implemented for the fabricated prototype stage. First, to evaluate various assessments (lever ratio, hysteresis, coupling error and resolution), a measurement is carried out using the three capacitive sensors. Then, a two-camera-vision measurement experiment was performed to verify the displacement and lever ratio over the full-scale working range of the fabricated positioning stage, and the results from the experimentation and the FEM analysis were compared. Findings The authors confirmed enhancements in the properties of the lever structure frame, which requires stiffness and of the hinge, which requires flexibility for elastic deformation. Comparing FEM analysis and experimental results, although the performance as shown by experimental results was lower: the maximum difference being 3.4% within the end-point working range; this difference was sufficient to be a plausible alternative for the aluminum-based stage. Originality/value Multi-material monolithic-structure fabrication has an effective advantage in improving the performance of the stage, by using a combination of materials capable of reinforcing the desired characteristics in the necessary parts. It was verified that the fabricated stage can substitute the aluminum-based stage and can achieve a higher performance than single-material stages. Thus, precise-positioning stages can be manufactured in many kinds of structures with various properties and contribute to weight reduction and low costs for application equipment.

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Development of a three-DOF piezoelectric actuator using a thin cross-beam vibrator

Cited by 50 publications

References 31 publications

Experimental Verification of Three-Degree-of-Freedom Electromagnetic Actuator for Image Stabilization

Experimental Verification of Three-Degree-of-Freedom Electromagnetic Actuator for Image Stabilization

Flat Cross-Shaped Piezoelectric Rotary Motor

Fabrication of a piezoelectrically driven micropositioning 3-DOF stage with elastic body using a multi-material 3D printer

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