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A Single Oscillator-Excited Piezoelectric Actuator with Internal Contact Teeth.

作者信息

Fang Die, Wen Zhiyi, Geng Zhixin, Hu Xiaopin, Kaswango Leon, Cao Jia, Li Xiaoniu, Wu Dawei

机构信息

State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, No. 29 Yudao Street, Nanjing 210016, China.

出版信息

Micromachines (Basel). 2023 Dec 26;15(1):47. doi: 10.3390/mi15010047.

DOI:10.3390/mi15010047
PMID:38258166
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10821494/
Abstract

The tail rotor of a helicopter, a crucial component, traditionally relies on a complex drive mode involving reducers and transmission gears. This conventional setup, with its lengthy transmission chain and numerous components, hinders miniaturization efforts. In response to this challenge, our paper presents a novel piezoelectric drive approach. Our objective was to suggest an innovative design capable of minimizing the components involved in the tail rotor drive. This design can be adjusted in size according to specific requirements and is effective up to a specified speed. Moreover, it facilitates the process of miniaturization and integration. The piezoelectric actuator's stator comprises an ultrasonic amplitude transformer, a ring, and three drive teeth. Utilizing the rod-like structure of the tail brace, the actuator is simplified by adhering ceramic sheets to it. The rotary piezoelectric actuator combines the first longitudinal mode of a rod with torus bending modes. The drive teeth then amplify the ring's displacement, facilitating rotor rotation. The resonant frequency and modal shape of the actuator were determined using the finite element method. Furthermore, an investigation was conducted to analyze the influence of the drive teeth positioning on the motion trajectory at the contact point. Theoretically, we infer that the declination angle of the drive tooth is a crucial parameter for achieving high speeds. To test our idea, we built three prototype stators with different drive tooth declination angles. Our actuator stands out for its cost-effectiveness, structural simplicity, compatibility with harmonic signals, and ease of miniaturization. It can be considered for the drive of the tail rotor of a microhelicopter.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/273de64e8c58/micromachines-15-00047-g021.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/5c357061c08b/micromachines-15-00047-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/1ba2d5ebe874/micromachines-15-00047-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/a84c8ebaa1db/micromachines-15-00047-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/05d7c544d510/micromachines-15-00047-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/073aacc3f7e0/micromachines-15-00047-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/dbfe27b7ffef/micromachines-15-00047-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/7e2689362594/micromachines-15-00047-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/9b3de2c2052a/micromachines-15-00047-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/bb41c2c40f90/micromachines-15-00047-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/8b4e6d406173/micromachines-15-00047-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/73f1d45f850d/micromachines-15-00047-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/0e5bf4e8992d/micromachines-15-00047-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/1f17bef671a7/micromachines-15-00047-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/8c2a6c0549ec/micromachines-15-00047-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/c67c734cbeba/micromachines-15-00047-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/5c47149d2289/micromachines-15-00047-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/d6f41aef484a/micromachines-15-00047-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/cae296a77f52/micromachines-15-00047-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/4ad89f3c4518/micromachines-15-00047-g019.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/1260bafda998/micromachines-15-00047-g020.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/273de64e8c58/micromachines-15-00047-g021.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/5c357061c08b/micromachines-15-00047-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/1ba2d5ebe874/micromachines-15-00047-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/a84c8ebaa1db/micromachines-15-00047-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/05d7c544d510/micromachines-15-00047-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/073aacc3f7e0/micromachines-15-00047-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/dbfe27b7ffef/micromachines-15-00047-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/7e2689362594/micromachines-15-00047-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/9b3de2c2052a/micromachines-15-00047-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/bb41c2c40f90/micromachines-15-00047-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/8b4e6d406173/micromachines-15-00047-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/73f1d45f850d/micromachines-15-00047-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/0e5bf4e8992d/micromachines-15-00047-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/1f17bef671a7/micromachines-15-00047-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/8c2a6c0549ec/micromachines-15-00047-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/c67c734cbeba/micromachines-15-00047-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/5c47149d2289/micromachines-15-00047-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/d6f41aef484a/micromachines-15-00047-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/cae296a77f52/micromachines-15-00047-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/4ad89f3c4518/micromachines-15-00047-g019.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/1260bafda998/micromachines-15-00047-g020.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/971e/10821494/273de64e8c58/micromachines-15-00047-g021.jpg

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本文引用的文献

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Single crystal piezoelectric motor operating with both inertia and ultrasonic resonance drives.采用惯性和超声共振驱动的单晶压电马达。
Ultrasonics. 2024 Jan;136:107140. doi: 10.1016/j.ultras.2023.107140. Epub 2023 Aug 26.
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Medical image analysis with artificial neural networks.基于人工神经网络的医学影像分析。
Comput Med Imaging Graph. 2010 Dec;34(8):617-31. doi: 10.1016/j.compmedimag.2010.07.003. Epub 2010 Aug 14.
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A disk-pivot structure micro piezoelectric actuator using vibration mode B11.一种采用振动模式B11的盘枢结构微压电致动器。
Ultrasonics. 2006 Dec 22;44 Suppl 1:e561-4. doi: 10.1016/j.ultras.2006.05.175. Epub 2006 Jun 9.