大角速率动调陀螺仪的运动分析与误差研究  

Motion and Error Analysis of DTG with Larger Angular Velocity

作　　者：任建新[1] 张鹏 任思聪[1] 

机构地区：[1]西北工业大学,陕西西安710072 [2]西安东风机电有限公司,陕西西安710075

出　　处：《仪表技术与传感器》2002年第12期49-51,共3页Instrument Technique and Sensor

摘　　要：研究的大角速率动调陀螺仪 ,挠性支承在所有方向上均具有有限刚度。因此 ,即使平衡环及转子不存在安装误差和其质点相对原点的位移 ,但是由于挠性轴在所有方向上均存在有限刚度 ,仍会引起陀螺仪轴向不平衡漂移及支承不等刚度漂移。利用广义坐标的理论 ,对动力调谐速率陀螺仪进行了运动分析 :分析了挠性支承特性对动力调谐速率陀螺仪精度的影响 ;对大角速率动调陀螺仪挠性支承的刚度及柔性矩阵进行了具体计算 ,并在此基础上对陀螺仪轴向不平衡漂移及支承不等刚度漂移进行了仿真分析。As far as the DTG with large angular velocity we researched,the flexibility supporting has limited rigidity in every axial orientation.Even though the gimbals and the rotor haven't the fixing error and displacement the particle relative to origin,the limited rigidity in every axial orientation brings the imbalance drift and the supporting varying rigidity drift.This paper studied the generalized coordinate of DTG with error in technics.Using the generalized coordinate,the DTG motion ana1ysis is done.The effect of flexibility supporting to the DTG precision is studied,and the drift equation of DTG is give,the flexibility matrix and flexility matrix of DTG with large angular velocity are specifically calculated.The simulation analysis for the imbalance drift and the varying rigidity drift is done.

关 键 词：运动分析 大角速率动调陀螺仪 广义坐标 不平衡漂移 不等刚度漂移 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]