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谐振器顶部修整方法下圆柱壳谐振器的固有频率研究

Investigation on Eigenfrequency of a Cylindrical Shell Resonator under Resonator-Top Trimming Methods.

作者信息

Zeng Kai, Hu Youwang, Deng Guiling, Sun Xiaoyan, Su Wenyi, Lu Yunpeng, Duan Ji'an

机构信息

State Key Laboratory of High Performance and Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.

出版信息

Sensors (Basel). 2017 Sep 2;17(9):2011. doi: 10.3390/s17092011.

DOI:10.3390/s17092011
PMID:28869507
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5621036/
Abstract

The eigenfrequency of a resonator plays a significant role in the operation of a cylindrical shell vibrating gyroscope, and trimming is aimed at eliminating the frequency split that is the difference of eigenfrequency between two work modes. In this paper, the effects on eigenfrequency under resonator-top trimming methods that trim the top of the resonator wall are investigated by simulation and experiments. Simulation results show that the eigenfrequency of the trimmed mode increases in the holes-trimming method, whereas it decreases in the grooves-trimming method. At the same time, the untrimmed modes decrease in both holes-trimming and grooves-trimming methods. Moreover, grooves-trimming is more efficient than holes-trimming, which indicates that grooves-trimming can be a primary trimming method, and holes-trimming can be a precision trimming method. The rigidity condition after grooves-trimming is also studied to explain the variation of eigenfrequency. A femtosecond laser is employed in the resonator trimming experiment by the precise ablation of the material. Experimental results are in agreement with the simulation results.

摘要

谐振器的本征频率在圆柱壳振动陀螺仪的运行中起着重要作用，而微调旨在消除频率分裂，即两种工作模式之间本征频率的差异。本文通过仿真和实验研究了在对谐振器壁顶部进行微调的谐振器顶部微调方法下，其对本征频率的影响。仿真结果表明，在打孔微调方法中，微调模式的本征频率增加，而在开槽微调方法中，本征频率降低。同时，在打孔和开槽微调方法中，未微调模式均降低。此外，开槽微调比打孔微调更有效，这表明开槽微调可以作为主要的微调方法，而打孔微调可以作为精密微调方法。还研究了开槽微调后的刚度条件，以解释本征频率的变化。在谐振器微调实验中采用飞秒激光对材料进行精确烧蚀。实验结果与仿真结果一致。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/0de53227502b/sensors-17-02011-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/22217f9777a0/sensors-17-02011-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/fdf785866e18/sensors-17-02011-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/169e38932684/sensors-17-02011-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/a553a2d91ab4/sensors-17-02011-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/3002bfac29f9/sensors-17-02011-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/f0cf734c9331/sensors-17-02011-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/fc8251a5a53b/sensors-17-02011-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/73d01feff9a1/sensors-17-02011-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/1d806d4e4345/sensors-17-02011-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/ef68a75b13ed/sensors-17-02011-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/20d09b1256ed/sensors-17-02011-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/75d7880a74cc/sensors-17-02011-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/26718b55a649/sensors-17-02011-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/565c1910bbf4/sensors-17-02011-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/0de53227502b/sensors-17-02011-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/22217f9777a0/sensors-17-02011-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/fdf785866e18/sensors-17-02011-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/169e38932684/sensors-17-02011-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/a553a2d91ab4/sensors-17-02011-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/3002bfac29f9/sensors-17-02011-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/f0cf734c9331/sensors-17-02011-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/fc8251a5a53b/sensors-17-02011-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/73d01feff9a1/sensors-17-02011-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/1d806d4e4345/sensors-17-02011-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/ef68a75b13ed/sensors-17-02011-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/20d09b1256ed/sensors-17-02011-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/75d7880a74cc/sensors-17-02011-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/26718b55a649/sensors-17-02011-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/565c1910bbf4/sensors-17-02011-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c781/5621036/0de53227502b/sensors-17-02011-g015.jpg

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