| 摘要: |
| 为解决挠性陀螺生产过程中刚度中心偏离，导致其振动附加漂移大的问题。分析了挠性陀螺振动附加漂移形成机理和调整刚度中心抑制振动附加漂移的机理，结合挠性陀螺的结构和生产工艺流程的特点，设计各生产工序间加测刚度中心的试验，确定装配工序是造成刚度中心偏离的主要工序。进一步分析识别装配工序中存在的影响因素，设计分离试验，确定前置放大板个体差异是造成刚度中心偏离的主要因素。制定相应的控制措施，优化挠性陀螺的生产工艺流程，保证各生产工序使用前置放大板的一致性。工程实践表明，控制措施可以有效保证刚度中心的稳定性，同时可以有效抑制振动附加漂移。研究成果对于挠性陀螺质量提升及稳定性控制具有指导意义。 |
| 关键词: 挠性陀螺；刚度中心；振动附加漂移；工艺流程优化；前置放大板 |
| 基金项目: |
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| Analysis and Control Measures of Center Deviation Factor for Stiffness of Flexible Gyro |
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Cai Yao Si Yuhui Wang Yuzhuo Guo Wei Han Jiawei Yang Xiaolong
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Xi’an Aerospace Precision Mechatronics Institute, Xi’an 710100
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| Abstract: |
| To solve the problem of large vibration-induced drift in flexure gyroscope production due to deviation of stiffness center, the formation mechanism and suppression mechanism of vibration-induced drift due to deviation of stiffness center were analyzed. Based on the structure and production process flow of flexure gyroscope, an experimental test was designed to measure the stiffness center at each production process step, and it was determined that the assembly process is the main process causing deviation of stiffness center. Further analysis identified the influencing factors in the assembly process, and a separation experiment was conducted to determine that the individual differences in the preamplifier are the main factor causing deviation of stiffness center. Control measures were formulated, and the production process flow of flexure gyroscope was optimized to ensure consistency in the use of the preamplifier. Engineering practice shows that the control measures can effectively ensure the stability of the stiffness center and effectively suppress vibration-induced drift. The research results have guiding significance for the improvement of flexure gyroscope quality and stability control. |
| Key words: flexible gyro；stiffness center；vibration additional drift；process optimization；preamplifier plate |
