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Mathematical Problems in Engineering
Volume 2015 (2015), Article ID 104041, 9 pages
Research Article

Modeling of Acceleration Influence on Hemispherical Resonator Gyro Forcing System

1Space Control and Inertial Technology Research Center, Harbin Institute of Technology, Harbin 150001, China
2Flight Automatic Control Research Institute, Aviation Industry Corporation of China, Xi’an 710065, China

Received 5 June 2014; Accepted 20 September 2014

Academic Editor: Minrui Fei

Copyright © 2015 Guoxing Yi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Acceleration adds negative effect to Hemispherical Resonator Gyro (HRG) output; therefore, it is important to model the influence and then make necessary compensations, accordingly. Based on the elastic thin-shell theory under the Kirchhoff-Love assumption, the acceleration influence on HRG forcing system is modeled and then schemes for incentive are suggested. Firstly, the dynamic model of resonator is introduced. Then, inertial load and electrostatic force are calculated to obtain the deformation of resonator. At last, schemes for pickoff incentive are proposed to weaken the effect of acceleration on HRG forcer. The simulation results illustrate that acceleration has negative effects on the exciting confidents of forcers and the proposed scheme can eliminate the acceleration influence on forcing system.