摘要
围绕全角半球谐振陀螺的典型使用环境特征,对谐振子结构方案进行了深入研究.仿真分析了"等壁厚""上薄下厚""上厚下薄"3种结构方案的振动特性差异,发现在谐振子平均尺寸相同的情况下,"上厚下薄"方案的工作频率最高,相邻模态频率间隔最大,且受冲击影响最小.进一步,定量仿真分析了内球面半径、内圆角半径及内支撑柱直径等结构参数对"上厚下薄"谐振子振动特性以及抗冲击性能的具体影响,为陀螺的设计加工提供了有效参考.
Abstract
A comprehensive study has been conducted on the structure of harmonic oscillator for the full-angle hemispherical resonant gyroscope,with a focus on its typical operational environ-mental characteristics.Simulation analysis is carried out to compare the vibration characteristics of three structure designs which are"equal wall thickness","thin top and thin bottom",and"thick top and thin bottom".It is found that,with an identical average resonant oscillator size,the"thick top and thin bottom"design exhibits the highest operating frequency,the widest frequency interval between adjacent modes,and the least sensitivity to impact.Furthermore,quantitative simulations are performed to investigate the specific effects of structural parameters,including in-ner spherical radius,inner fillet radius,and inner support column diameter,on the vibration char-acteristics and impact resistance of the"thick top and thin bottom"resonant oscillator.These find-ings offer valuable insights for guiding the design and manufacturing of the gyroscopes.
维普
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