动力调谐陀螺安装倾斜角引起的误差分析

在动力调谐陀螺的装配过程中陀螺和平衡环的中心轴总是不可能完全与驱动轴轴线重合,因此存在一定的安装倾斜角.通过对转子和平衡环的受力分析及陀螺的运动状态分析,并利用理论力学知识,建立了在考虑陀螺与平衡环安装倾斜角和陀螺壳体具有加速度和角速度条件下的运动方程,得到了安装倾斜角造成的干扰力矩表达式,并进行了讨论.分析结果表明:陀螺及平衡环的安装倾斜角对动力调谐陀螺的调谐条件有影响,此干扰力矩与壳体的运动状态无关而与力矩器对转子的作用力有关.因此,在装配中应尽量做到陀螺、平衡环及驱动轴的轴线重合,以便减小对动力调谐陀螺的调谐条件的影响.

Analysis of the error of tuned gyroscope with fixing tilt angle

The gimbal ring and drive axis is impossible to coincide with the centre axis of gyroscope completely during the assembly process.The movement equation of the dynamically tuned gyroscope considering of the disturbing of fixing tilt angle with the theoretical mechanics was set up based on the analysis of pressure on the rotor and the gimbal ring,and the discussion were also carried out.The analysis results indicate that fixing tilt angle of gyroscope and gimbal ring have influence on the tuned condition of dynamically tuned gyroscope(DTG),and the disturbing torque is unrelated with the state of motion however it is related with the active force of torquer to rotor.Thus,it is better to have the centre axis of gyroscope coincided with the gimbal ring and drive axis to reduce the influence to the dynamically tuned gyroscope.