多层光纤线包结构稳定性高效计算模型与分析

Efficient Computational Model and Analysis of Structural Stability of Multi-layered Fiber Optic Cable Package

光纤线包的结构稳定性显著影响光纤系统的服役状态,为解决以有限单元法为代表的数值分析方法,因光纤线包缠绕层数多、非线性强等因素导致的计算时间长、效率低等问题,根据光纤层间仅受压的特点建立光纤线包结构稳定性的高效计算模型,分析光纤的缠绕制度和线径的均匀程度对光纤线包结构稳定性的影响规律,给出线包失稳的线径均匀性临界值。研究结果表明:相比于有限元仿真,该模型在不损失计算精度的前提下计算效率可提升约100倍;等残余张力缠绕制度更有利于线包的结构稳定性;当线径的偏差值超过标准线径的±3%时,光纤位移急剧增大,严重影响光纤线包的结构稳定性;此研究对于多层光纤线包绕制工艺的实时分析和控制具有重要的意义。

The structural stability of fiber optic cabke package has a significant impact on the service status of fiber optic systems.To address the issues of long computation time and low efficiency of numerical analysis methods like finite element analysis due to strong nonlinearity and more winding layers of fiber optic cable package,an efficient computational model is established to analyze the structural stability of fiber optic cable packages.This model is used to analyze the effects of fiber optic winding patterns and uniformity of wire diameter on package structural stability.The critical values are provided for the wire diameter and uniformity that lead to the instability of fiber optic cable package.It is shown that this model improves the computational efficiency by approximately 100 times without sacrificing the computational accuracy compared to the finite element method.The"consistent residual tension"winding pattern enhances package structural stability.When the deviation of wire diameter exceeds±3%of the standard wire diameter,the fiber displacement increases sharply,seriously impacting the package structural stability.This study holds significance for real-time analysis and control of multilayer fiber optic winding processes.