Dynamic Error Mechanism Analysis of HRG
The strains of an arbitrary point on the resonator of the hemispherical resonator gyro are deduced under Kirchhoff-Lyav hypothesis. The force equilibrium equations of the thin shell element are established on the basis of the calculated strains. When the gyro is subjected to three-axis angular rates and angular accelerations, the inertia force is calculated and the border motion equations of the hemispherical resonator are established, the solution of the dynamic equation is gained using Bubonov-Galerkin method. In the end, the dynamical error model of gyro is attained, the influence of angular rate and angular acceleration on the accuracy of the gyro is analyzed when the gyro bearing three-axis angular rates and angular accelerations.
Jiayi Qi Xue Chen Shunqing Ren Changhong Wang
Space Control and Inertial Technology Research Center,Harbin Institute of Technology
国际会议
深圳
英文
1279-1284
2008-12-10(万方平台首次上网日期,不代表论文的发表时间)