基于计算机技术的海缆温度场建模及应用研究-《粘接》(2021年10期).docx

龙源版权所有 基于计算机技术的海缆温度场建模及应用研究作者：吴浩来源：《粘接》2021年第10期 摘 要：在实际的工程应用中，温度场的实际操作成为了研究重点。随着互联网的迅猛发展，采用计算机技术对温度场进行建模已经极为普遍，越来越多的有限元分析软件成为了温度场建模的主要平台。在建模过程中，需要重点关注一个问题，即边界条件，边界条件不具备唯一性，对边界条件进行研究，可以提高建模的准确性。同时，为了更好的监测海缆的绝缘性能，在有限元软件COMSOL中建立海缆温度场模型，并在此基础上确定在不同流量下，海缆模型所使用的最佳范围。建模的目的是为了让海缆可以正常运行，在绝缘性能下降的情况下，分析环境温度对于光纤的影响。研究結果显示，在正常情况下，光纤的温度会随着所承载流量的增加而增大，温度影响的比例较小。 关键词：海底电缆;温度场;边界条件;COMSOL建模 中图分类号：TM757;P756.1 文献标识码：A 文章编号：1001-5922（2021）10-0076-05 Research on Modeling and Application of Undersea Cable Temperature Field Based on Computer Technology Wu Hao （North China Institute of Computing Technology， Beijing 100083， China ） Abstract：In the practical engineering application， the actual operation of the temperature field has become a research focus. With the rapid development of Internet， it is very common to use computer technology to model the temperature field. More and more finite element analysis software has become the main platform of temperature field modeling. In the process of modeling， we need to focus on one problem， that is， boundary conditions， boundary conditions do not have uniqueness， the study of boundary conditions can improve the accuracy of modeling. At the same time， in order to better monitor the insulation performance of the undersea cable， the temperature field model of the cable is established in the finite element software COMSOL， and on this basis， the optimal range used by the undersea cable model under different flow rates was determined. allow the undersea cable to operate normally， and to analyze the influence of the ambient temperature on the optical fiber when the insulation performance is degraded. The results show that under normal conditions， the temperature of the fiber increases with the increase of the load flow， and the proportion of temperature effect is small. Key words：undersea cable; temperature field; boundary condition; COMSOL modeling 0 引言 海底电缆是在海底辐射的电缆，分为通信和电力两大块，海缆的敷设在历史上研究已久，近年来，随着沿海地区能源需求的增加，海缆已经成为陆地与岛屿之间通信的重要通信硬件。海缆电力