论文部分内容阅读
运用模糊理论描述了影响加速度计标度因数稳定性诸多因素的不确定性问题,针对其中的磁钢磁感应强度和石英摆片热膨胀系数两类稳定性影响因素,给出了其三角模糊数区间,并通过该型加速度计的磁-结构耦合ANSYS分析求出了在模糊参数不同组合下的仿真输出,根据仿真输出结果获得了标度因数模糊稳定区间,给出了加速度计标度因数稳定性分析流程及实例.分析说明了基于模糊理论的稳定性分析方法可以为加速度计加速稳定试验截止条件提供依据,对提高加速度计标度因数长期稳定性水平具有重要意义.
The fuzzy theory is used to describe the uncertainties of many factors that affect the stability of scale factor of accelerometer. According to the two influencing factors of magnetic induction intensity and thermal expansion coefficient of quartz pendulum, the triangular fuzzy interval, The simulation output of the fuzzy parameters under different combinations of the fuzzy parameters is obtained through the analysis of the magnetic-structure coupled ANSYS of the accelerometer. The fuzzy stable interval of the scale factor is obtained according to the simulation output, and the stability analysis of the scale factor of the accelerometer is given Process and examples.It is analyzed that the method of stability analysis based on fuzzy theory can provide the basis for accelerating the stability test of accelerometer and is of great significance for improving the long term stability of accelerometer scale factor.