石英音叉陀螺是一种微型惯性仪表 ,音叉的结构参数不仅关系到仪表的敏感性、检测精度和稳定性 ,而且决定了其力学性能。抗冲击性能是结构优化的目标之一 ,作者利用计算机模拟音叉在特定运载器载荷环境下的力学行为 ,试验是在 HP工作站上采用 ANSYS/ LS DY-NA通用有限元程序实施的。结果表明 :样机的抗冲击性能高于引用标准 ,能经受 1 0 0 0 0 g的冲击 Quartz tuning fork gyro is a miniature inertial instrument, tuning fork structural parameters not only relates to the instrument sensitivity, detection accuracy and stability, but also determines the mechanical properties. Impact resistance is one of the goals of structural optimization. The authors use computer to simulate the mechanical behavior of tuning fork in a specific carrier load environment. The experiment is implemented on HP workstation with ANSYS / LS DY-NA common finite element program. The results show that: the impact resistance of the prototype is higher than the reference standard, can withstand the impact of 1 000 g