液浮陀螺温度场优化方法研究及实现

Optimization Method Research and Realization of Temperature Field of Floated Gyro

提出了一种24点位测量陀螺内部温度场的实验方法,准确测量了陀螺内部温度场分布,通过工程计算和温度实验,得到了更为准确的液浮陀螺有限元模型;为了解决陀螺内部轴向温度梯度和方位变化对陀螺精度造成的影响,通过仿真分析,提出改变加热片形状,将加热方式由线形均匀加热改为非线性加热的优化方案,并设计了一系列实验,考核了各方案在不同方位、倒置瞬态过程以及工作精度方面的能力;仿真结果和实验结果验证了优化方案的有效性。

Presents a 24 point measurement of the temperature field of internal gyro experimental method, accurate measurement the gyro internal temperature field distribution, through the engineering calculation and temperature experiments, the finite element mode of floated gyro is more accurate. In order to solve the gyro internal axial temperature gradient and azimuth of gyro changes affect the precision, through the simulation analysis, propose to change the shape of heating film, heating mode by linear uniform heat to nonlinear heating opti-mization scheme, a series of experiments, and the design scheme in the evaluation of different position, the transient process and working ac-curacy. The experimental simulation results and experimental results verify the effectiveness of the proposed scheme optimization.