有缆无人潜水器用多层脐带缆温度场仿真研究

Analysis of Temperature Field Simulation for Multi-layer Umbilical Cable of Remotely Operated Vehicle

脐带缆作为有缆无人潜水器(ROV)电力和信号传输的关键组件,工作时须缠绕在绞车上。在运行过程中,脐带缆的温升易受内部损耗的影响,并且长期处在高温环境下,会加速绝缘老化,甚至诱发击穿。为保证脐带缆在作业下安全运行,需要对其电磁和温度特性进行分析。基于有限元仿真软件COMSOL建立电磁和温度等多物理场耦合模型,结合筒体结构、电缆缠绕层数,以及工作过程中的热传导、热对流等因素,研究了线芯损耗特征与多物理场耦合后的温度分布、散热特性,并分析了脐带缆在不同负载、绕组下对温度场分布的影响,以期为脐带缆的设计和多层脐带缆的配置提供理论支持。

As a crucial component of Remotely Operated Vehicle(ROV)power and signal transmission,umbilical cable needs to be wound on winches under working conditions.During operation,temperature rise of umbilical is easily affected by internal losses.Prolonged exposure to high temperatures can accelerate insulation aging and even induce breakdown.To ensure safe operation of umbilical cable during operation,electromagnetic and temperature characteristics need to be analyzed.Based on finite element simulation software COMSOL,multi-physical field coupling model for electromagnetism and temperature fields was established.Combining barrel structure,number of layers of cable winding,and factors such as heat conduction and heat convection during operation,characteristics of wire core loss and temperature distribution and heat dissipation characteristics after multi-physical field coupling were studied.Influence of umbilical on temperature field distribution under different loads and windings was analyzed.Results could provide theoretical support for the design of umbilical cable and configuration of multi-layer umbilical Cable.