半球谐振子固有刚性轴方位角测量方法与仿真研究

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (5) : 166-172.

论文

朱蓓蓓1，楚建宁2，秦琳1，王宜新2，陈肖2，汪学方2，许剑锋2

作者信息 +

Measurement method and simulation for azimuth angle of normal-mode axis of hemispherical resonator

ZHU Beibei1, CHU Jianning2, QIN Lin1, WANG Yixin2, CHEN Xiao2, WANG Xuefang2, XU Jianfeng2

Author information +

文章历史 +

摘要

半球谐振子固有刚性轴方位角测量是谐振子制造及调平等工艺过程的重要基础。本文首先对半球谐振子固有刚性轴方位角的测定方法进行了理论分析，其次开展了基于位置激励的半球谐振子谐响应仿真研究，模拟了固有刚性轴位置的测定过程，最后通过设计试验，采用非接触式声波激励，激光多普勒测振仪采集唇缘不同位置的振动信号，完成了半球谐振子固有刚性轴方位角的测定。该方法的角度分辨率优于1°，结果表明：其固有频率主轴方位角的辨识误差约为4.4%，具有良好的可行性，该方法装置简单、便于操作，对半球谐振子初期研制过程中固有刚性轴方位角的精确定位具有重要的参考意义。

Abstract

The Measurement of hemispherical resonator normal-mode axis azimuth is basic for its fabrication and adjustment. Firstly, determination method of the normal-mode axis azimuth was theoretically analyzed. Secondly, based on position excitation, harmonic response simulation of the hemispherical resonator was carried out, measurement process of the normal-mode axis azimuth was simulated. Finally, experimental scheme was designed, normal-mode of hemispherical resonator is excited by the non-contact acoustic excitation, vibration signals at different positions of the lip edge are collected by laser Doppler vibrometer. Angular resolution of the method is better than 1°. The experimental results show that the measurement error of the azimuth angle is about 4.4%. The method is feasible, simple and easy to operate. It is significant for research of improving the hemispherical resonator’s performance.

导出引用

朱蓓蓓1，楚建宁2，秦琳1，王宜新2，陈肖2，汪学方2，许剑锋2. 半球谐振子固有刚性轴方位角测量方法与仿真研究[J]. 振动与冲击, 2022, 41(5): 166-172

ZHU Beibei1, CHU Jianning2, QIN Lin1, WANG Yixin2, CHEN Xiao2, WANG Xuefang2, XU Jianfeng2. Measurement method and simulation for azimuth angle of normal-mode axis of hemispherical resonator[J]. Journal of Vibration and Shock, 2022, 41(5): 166-172

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