垂直陀螺“TC-7’的模拟试验分析

SIMU LATION TEST AND ANALYSIS OF GYRO VERTICALS “TC-7”

本文讨论了“TC-7”在静基座上存在输出自振的机理,通过模拟试验说明了产生自振的原因是由于液体开关的惯性,陀螺内、外环上的干摩擦力矩及其相互交链的影响;从理论上导出了自振振幅α_m、周期T_0。的表达式;并用实验定性地验证了分析的正确性;指出了提高“TC-7”精度的途径。

This paper focuses on the mechanism of GV TC-7 which keeps output of self-oscillation in the stationary base. Simulation tests show that self-oscillation is caused by the intertia of liquid switch and the dry friction between gyroscopic inner, outer gimbal and its effect of cross coupling. Equations are derived for the self-oscillation amplitude am and the period T0.The test verifies the correctness of analysis qualitatively and shows ways to improve the precision of the gyro.