ERROR ANALYSIS OF DYNAMICALLY TUNED GYROSCOPE RESULTING FROM TWIN SPIN FREQUENCY ANGULAR VIBRATION

With a simplified analytical method,this paper presents both the dynamically tuned condition of a multigimbal dynamically tuned gyroscope and the condition of eliminating error torques resulting from a given twice spin frequency angular vibration inputs of the driving shaft.The obtained results include the corresponding results of the single or two-gimbals gyro which can be seen in the references.If the plane of inner and outer torsion springs is not orthogonal to the driving shaft,this paper presents the dynamically tuned condition,and in this case,this paper examines how tuned gyro's drift is affected by the error torque resulting from a given twice spin frequency angular vibration of the driving shaft.