浮油组分分离对三浮陀螺仪误差系数变化的机理分析  

Mechanism Analysis on the Changes of Error Coefficient Caused by Oil Components Separation for Three-floated Gyroscope

作　　者：梁涛 王巍 李亮[1] 孙文利[1] 凌林本 沙立[1] LIANG Tao;WANG Wei;LI Liang;SUN Wen-li;LING Lin-ben;SHA Li(Beijing Institute of Aerospace Control Devices,Beijing 100039;China Aerospace Science and Technology Corporation,Beijing 100048)

机构地区：[1]北京航天控制仪器研究所,北京100039 [2]中国航天科技集团有限公司,北京100048

出　　处：《导航与控制》2023年第3期94-99,共6页Navigation and Control

摘　　要：三浮陀螺仪浮子组件利用高密度浮油实现全液浮,用于卸载重力和消除机械支撑带来的摩擦力矩。但陀螺仪在某一位置长时间放置后,浮油组分分离形成的干扰力矩会造成一次项误差系数的变化。通过仿真计算、数学模型、试验测试证实了这种干扰力矩的存在,解释了浮油对三浮陀螺仪姿态变化精度的影响机理。The floater assembly of three-floated gyroscope uses high-density oil to realize full liquid floating,which is used to unload gravity and eliminate friction torque brought by mechanical support.But after the gyroscope is placed in a certain position for a long time,the disturbance torque formed by oil components separation will cause a change in the primary error coefficient.In this paper,the disturbance torque has been proven through simulation calculation,mathematical model and experimental test,explaining the influence mechanism of three-floated gyroscope attitude change accuracy caused by oil.

关 键 词：三浮陀螺仪 浮油 组分分离 姿态变化 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]