The life and damage of hemispherical resonator are important factors that directly affect the service time and safety of high-precision hemispherical resonator gyro. However, the fused silica glass material used in the hemispherical resonator which was processed in China is mainly imported, and it is too expensive to use the traditional fatigue life experiment, so it is necessary to use the software of fatigue life analysis to analyze its fatigue life. In the paper, the ANSYS software is used to analyze the fatigue life of fused silica hemispherical resonator, to determine the dangerous parts caused by the residual stress to analyze the crack propagation in the fatigue parts, and to obtain the sum stress intensity factor, so as to effectively monitor and prevent the fatigue-prone parts in the process of structural design and use of the hemispherical resonator.

中文翻译：

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半球谐振陀螺疲劳寿命分析与仿真

半球谐振器的寿命和损坏是直接影响高精度半球谐振陀螺使用时间和安全性的重要因素。但国内加工的半球谐振器所用熔融石英玻璃材料主要是进口，传统的疲劳寿命实验成本太高，需要借助疲劳寿命分析软件对其疲劳进行分析。生活。本文利用ANSYS软件对熔石英半球谐振器的疲劳寿命进行分析，确定残余应力引起的危险部位，分析疲劳部位的裂纹扩展，得到总应力强度因子，