Effects of friction in the pivots of the floating gyro node leading to unbalancing

Abstract

The results of studies of the change of the output signal of the angular rate sensor, which occurs as a result of unbalancing of the floating gyro node due to friction in pivoted supports are presented; physical foundations of such a phenomenon are discussed, analytical correlations for calculating the interrelated moments of the unbalancing force, the size of gap in pivoted supports, the gyro node temperature, and the friction forces moment (torque), which cause changes in the output signal, are introduced; a method for evaluating the friction moment and the degree of wear of supports that does not require device disassembly is proposed; analysis of deformations due to load on the pivot and the degree of their influence on friction moments is conducted.