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从理论上阐述了应用在惯性飞行平台上的气浮陀螺加速度表主轴承中哥氏效应产生的原因、危害以及补偿的措施。并分别利用经典的陀螺仪理论和速度三角形法求得陀螺力矩的大小,并得出在一定的条件下作用在钢球上的陀螺力矩对主轴承的破坏作用,从而使仪表的精度、可靠性和寿命降低的结论。为了改变这一状况,提出了补偿措施,即在马达轴向施加一定的预紧力。同时阐述了轴向预紧力施加的一般原则,预紧力一般计算方法,计算轴向最小的预紧力以及预紧力的直接和间接的测量方法。提出了施加预紧力的三种方法,即定位加载、定压加载和综合加载的方法,以满足仪表的主轴承能正常工作,并保证一定的工作精度和寿命。
The reasons, hazards and compensation measures of Coriolis effect in the main bearing of FOG accelerometer used on inertial flight platform are expounded theoretically. And use the classic gyroscope theory and speed triangle method respectively to calculate the gyroscopic moment size, and obtain the destructive effect of the gyroscopic moment acting on the steel ball under certain conditions on the main bearing, so that the accuracy and reliability of the instrument And reduced life expectancy. In order to change this situation, compensation measures have been proposed, that is, a certain preload force is applied to the motor shaft. At the same time, the general principles of the application of axial pretensioning force, the general methods of prestressing, the direct and indirect methods of calculating the minimum axial pretensioning force and the pretensioning force are described. Three methods of applying pre-tightening force are proposed, that is, the methods of positioning loading, constant pressure loading and comprehensive loading to meet the main bearing of the instrument can work normally and ensure a certain working accuracy and longevity.