A large-step stick-slip rotary piezoelectric actuator with high velocity under low frequency and small backward motion

Xun, Mingxin; Yu, Hongpeng; Zhang, Shijing; Chang, Qingbing; Deng, Jie; Liu, Yingxiang

doi:10.1088/1361-665x/acc439

Cited by 8 publications

(3 citation statements)

References 38 publications

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“…On the other hand, for the molten metal droplet ejection with PMJD in DOD, this ejection method with piezoelectric actuator [125,126] has a simpler structure, better controllability of droplet outlet characteristics, and higher consistency in droplet shape and size compared to the UDS. Therefore, it can ensure smaller physical parameter errors during continuous pileup process of the molten metal droplets, which can improve the dimensional and surface accuracy of the prepared metal parts.…”

Section: Piezoelectric Actuated Molten Metal Droplet Ejectionmentioning

confidence: 99%

A review on droplet-based 3D printing with piezoelectric micro-jet device

Feng,

Liu,

Deng

et al. 2024

Smart Mater. Struct.

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The droplet-based 3D printing with piezoelectric micro-jet device (PMJD), also known as fabrication with droplet ejection, has shown its unique advantages exceeding typical processing in direct rapid manufacturing (DRM) of miniature and complicated metal parts, function components, and other heterogeneous devices. Recently, the droplet-based 3D printing with higher printing velocity, controllable precision and smaller printing volume is need more and more in additive manufacturing (AM) fields, which promotes the development of the droplet-based printing technology to a faster, accurate and flexible direction. In this regard, the droplet-based 3D printing with PMJD has received a lot of attentions from universities, enterprises, and other research institutes. In this review, based on introducing the droplet-based 3D printing technologies, we will clarify the advantages of droplet-based 3D printing, especially the droplet ejection with PMJD. Then, the connections and differences between the ejection of non-metallic droplets and metal droplets based on piezoelectric micro-jet are also clarified, meanwhile, the challenges, such as the consistency, reliability, and stability of piezoelectric actuated droplet ejection, are concluded and analyzed. In general, the future developments of droplet-based 3D printing technology are prospected, and the review can provide some further references for the related works.

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Section: Piezoelectric Actuated Molten Metal Droplet Ejectionmentioning

confidence: 99%

A review on droplet-based 3D printing with piezoelectric micro-jet device

Feng,

Liu,

Deng

et al. 2024

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…And this type of motor has been applied in precision equipment [4,5], biomedical [6], robotics [7] and other technical fields. Among the research of rotary ultrasonic motors, the most concerned performance indicators include output torque [8,9], rotational speed [10,11], angular displacement resolution [12], and response characteristics in complex environment [13,14]. In recent years, with the development of space technology, the application demand of rotary ultrasonic motors in aerospace mechanisms has increased significantly, and the comprehensive performance of rotary ultrasonic motors has been challenged.…”

Section: Introductionmentioning

confidence: 99%

A novel rotary ultrasonic motor based on multiple Langevin transducers: design, simulation, and experimental investigation

Ma,

Yang,

Qiu

et al. 2024

Smart Mater. Struct.

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Travelling wave rotary ultrasonic motors (TRUSMs) have been applied in optical systems, robotics, biomedical and other fields. However, the disadvantages such as short working life, driving performance degradation, and low energy utilization significantly limit the long-term and stable operation of TRUSMs in advanced fields like aerospace mechanisms. To address the above issues, a novel rotary ultrasonic motor based on multiple Langevin transducers is proposed in this paper. First, the structural design, driving principle and general design criteria are described in detail. Then, the structural parameters are optimized by finite element simulation analysis. Second, a prototype is assembled controllably. Subsequently, the impedance test and vibration measurement are carried out. The results show that the traveling wave is successfully generated on the tooth-ring, and all the Langevin transducers are excited to the first-order longitudinal vibration modes, which strongly verify the correctness of design principle. Finally, the driving performance experiment is carried out. The experimental results show that the no-load speed is 62 r/min under the pre-pressure of 10 N. The stalling torque is 0.94 N·m at the driving voltage of 500 Vp-p. The response characteristics show that the start/stop time are 4.6/5.5 ms, and the angular displacement resolution of clockwise/counterclockwise driving are 6.7/10.2 μrad. The motor proposed in this paper not only exhibits relatively high output performance with excellent vibration characteristics, but also maintains compactness of the structure. The sandwiched structure design effectively avoids the problem that the bonded-type piezoceramic rings in conventional TRUSMs are prone to damage or fall-off when vibrating for a long time. Furthermore, the general design criteria provide a new approach to develop high performance rotary ultrasonic motors. The proposed novel ultrasonic motor is expected to meet the demand for long-term and stable operation in aerospace mechanisms.

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“…However, these motors require a complex control method and are more demanding in terms of part accuracy and assembly. In the case of inertia actuators [11], [12], [13], [14], [15], [16], the inertia of a slide guide is used to drive in step motion through continuous friction contact. Typically, a single piezo-stack is used to achieve positive and reverse motion.…”

Section: Introductionmentioning

confidence: 99%

A Novel Piezo Inertia Actuator Inspired by Motion Mode of Steam Train’s Transmission Mechanism

Sun

Zhang

2023

IEEE Access

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Previously reported inertia actuators mostly have the problem of greater deviations between positive and reverse speeds. To solve this problem, we have developed a novel piezo inertia actuator with a similar structure, inspired by the motion mode of the steam train's transmission mechanism. Based on the inertia principle, a saw-tooth waveform voltage is used to drive the actuator. The aim of this study is to report the model design, working principle and the output characteristics experiment of the designed actuator. The prototype is fabricated for testing of mechanical properties. Experiments indicate that the positive and reverse average speeds are 12.59 mm/s and 11.99 mm/s, respectively, with a deviation rate of 4.9%, which is much lower than those of previous actuators. Finally, the experiment proves the effectiveness of the novel piezo inertia actuator inspired by the motion mode of the steam train's transmission mechanism.

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A large-step stick-slip rotary piezoelectric actuator with high velocity under low frequency and small backward motion

Cited by 8 publications

References 38 publications

A review on droplet-based 3D printing with piezoelectric micro-jet device

A review on droplet-based 3D printing with piezoelectric micro-jet device

A novel rotary ultrasonic motor based on multiple Langevin transducers: design, simulation, and experimental investigation

A Novel Piezo Inertia Actuator Inspired by Motion Mode of Steam Train’s Transmission Mechanism

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