Title :
Kinetic model analysis and testing of HRG
Author :
Yang, Qian ; Yi, Guoxing ; Shen, Bochang ; Wang, Henian
Author_Institution :
Space Control & Inertial Technol. Res. Center, Harbin Inst. of Technol.
Abstract :
The precessional phenomenon and the dynamical model of hemispherical resonator gyro are investigated in this paper. And experiments are performed on a specimen gyro (HRG-14) to measure its zero drift and scale factor. A new analysis of precession in the view of particle force is proposed. Thin shell theory and virtual displacement principle are employed to derive the dynamical model of the hemispherical shell. The influence of shell´s geometry parameters on its natural frequency and precession rate is analyzed as the approximate solution of the model. Depending on ANSYS - finite element analyzer, by comparisons among nine models gained from the elementary model, the influence of the shell´s geometry parameters on each free frequency is analyzed
Keywords :
aerospace instrumentation; finite element analysis; gyroscopes; resonators; rotation; ANSYS; HRG-14; dynamical model; finite element analyzer; geometry parameters; hemispherical resonator gyro; hemispherical shell; kinetic model analysis; natural frequency; particle force; precessional phenomenon; thin shell theory; virtual displacement principle; Acceleration; Equations; Finite element methods; Frequency; Geometry; Kinetic theory; Optical resonators; Solid modeling; Space technology; Testing;
Conference_Titel :
Systems and Control in Aerospace and Astronautics, 2006. ISSCAA 2006. 1st International Symposium on
Conference_Location :
Harbin
Print_ISBN :
0-7803-9395-3
DOI :
10.1109/ISSCAA.2006.1627712
