Design and analysis of single-axis Cylindrical Vibratory Gyroscope

Date

2025-1

Author

Avcıoğlu, Recep Berk

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Design parameters and mathematical modeling of the Cylindrical Vibratory Gyroscope (CVG) are studied in this thesis. CVG is an inertial sensor that measures angular rate utilizing the effect of Coriolis forces. CVG has a primary motion in the form of vibration. A secondary motion is excited due to Coriolis forces when an angular rate is applied to its sensitive axis. By comparing primary and secondary motions, CVG can measure the angular rate. This sensor stands out with competitive performance despite its lightness and cheapness among the other gyroscopes. The mathematical model of the sensor has been done with the equations of motion of the sensor and state-space estimation of the resonator. This mathematical model has been used for the simulation of the measurement of the angular velocity. The modal analyses of the resonator have been done by using the finite element method (FEM) for different design parameters. Therefore, the effect of design parameters on the natural frequencies of the modes is calculated. In conclusion, a complete mathematical vibrational model of the CVG system is obtained which enables performance and optimization studies for the CVG system, and a new design of the resonator for the CVG system is obtained.

Subject Keywords

Cylindrical Vibratory Gyroscope, Mathematical modeling, Finite element analysis, Inertial navigation sensor, Mechanical design

URI

https://hdl.handle.net/11511/113396

Collections

Graduate School of Natural and Applied Sciences, Thesis