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.
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