光纤环绕制工艺优化设计

发布时间：2018-07-31 17:33

【摘要】：在惯性导航系统中,由于光纤陀螺仪具有体积小、启动快、灵敏度高和全固态等优点,使得其取代传统的机械陀螺仪和电子陀螺仪,并在飞行器控制、潜艇定位、车辆导航等各大领域得到广泛应用。光纤环(光纤敏感线圈)是光纤陀螺仪光路部分的光学核心部件,光纤环绕制工艺的优劣会直接影响高精度光纤陀螺仪的研制开发。本文针对光纤环绕制过程中绕制张力和滞后角的大小对光纤环绕制质量的影响进行研究,在分析光纤环绕制方式和绕制设备各部件运动方式的基础上,对光纤环绕制工艺提出优化设计方案,主要包括:1)研究光纤绕制过程中光纤应力的变化,分析绕制张力的具体控制要求,建立绕制张力产生的数学模型,通过分析绕制张力产生波动原因,提出采用舞蹈轮微控装置进行绕制张力波动的缩小,并分析其具体的控制方法,实现绕制张力优化。2)分析绕制过程中各类绕制缺陷产生的原因,建立滞后角的数学模型,根据光纤环绕制实时监测装置的工作原理,分别提出绕制过程和绕制初始时刻滞后角的控制方法。经实验数据分析得到该补偿方法可以完成无缺陷缠绕,实现高精度排线。3)分析降低光纤环内部应力的具体绕制方法,根据光纤环内部光纤受力分析建立光纤环的物理模型,并通过采用有限元软件仿真各类绕制张力变化条件下光纤环内部应力分布与具体的数值,通过具体的数值比较得出光纤环内部应力优化的控制方式。
[Abstract]:In inertial navigation systems, fiber optic gyroscopes have the advantages of small size, fast starting, high sensitivity and all solid state, so they replace the traditional mechanical gyroscopes and electronic gyroscopes, and locate in aircraft control and submarine positioning. Vehicle navigation and other major fields have been widely used. Optical fiber ring (fiber optic sensing coil) is the optical core part of optical fiber gyroscope. The advantages and disadvantages of optical fiber encircling technology will directly affect the research and development of high precision fiber optic gyroscope. In this paper, the influence of the winding tension and the hysteresis angle on the fiber wrapping quality is studied. Based on the analysis of the optical fiber wrapping mode and the moving mode of the components of the winding equipment, the influence of the winding tension and the hysteresis angle on the fiber wrapping quality is studied. The optimal design scheme of optical fiber wrapping process is put forward, which mainly includes: 1) studying the change of fiber stress in fiber winding process, analyzing the specific control requirements of winding tension, and establishing the mathematical model of winding tension generation. By analyzing the causes of the fluctuation of winding tension, the paper puts forward that the dance wheel micro-control device is used to reduce the fluctuation of winding tension, and analyzes its specific control methods. The causes of various kinds of winding defects are analyzed, and the mathematical model of lag angle is established. According to the working principle of the optical fiber surround real-time monitoring device, the paper analyzes the causes of the winding tension optimization (.2) and establishes the mathematical model of the hysteresis angle. The control methods of the hysteresis angle of the winding process and the initial time of winding are presented respectively. Through the analysis of the experimental data, it is found that the compensation method can be used to complete the non-defect winding, and to realize the high-precision wire placement (.3) to analyze the specific winding method to reduce the internal stress of the optical fiber ring, and to establish the physical model of the optical fiber ring according to the analysis of the internal fiber force of the optical fiber ring. By using finite element software to simulate the stress distribution and the specific value of the fiber ring under various kinds of winding tension, the control mode of the stress optimization in the fiber ring is obtained by comparing the specific numerical values.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN96

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