浮式风机用动态缆截面多物理场耦合分析  

Multi-physics coupling analysis of dynamic cable cross section for floating wind turbine

作　　者：阎军[1,2] 步宇峰 苏琦 陈金龙 芦兆宽 金超越 卢青针 YAN Jun;BU Yufeng;SU Qi;CHEN Jinlong;LU Zhaokuan;JIN Chaoyue;LU Qingzhen(State Key Laboratory of Structural Analysis for Industrial Equipment,Department of Engineering Mechanics,Dalian University of Technology,Dalian 116024,China;Ningbo Research Institute of Dalian University of Technology,Ningbo 315016,China;School of Ocean Science and Technology,Dalian University of Technology,Panjin 124221,China;Jiangsu Hengtong Marine Cable SYSTEMS Co.,Ltd.,Changshu 215537,China)

机构地区：[1]大连理工大学工程力学系工业装备结构分析国家重点实验室,辽宁大连116024 [2]大连理工大学宁波研究院,浙江宁波315016 [3]大连理工大学海洋科学与技术学院,辽宁盘锦124221 [4]江苏亨通海洋光网系统有限公司,江苏常熟215537

出　　处：《应用科技》2022年第6期19-25,共7页Applied Science and Technology

基　　金：中央高校基本科研业务费专项资金项目(DUT20LAB308);江苏省自然科学基金项目(BK20201198);宁波市自然科学基金项目(2021J002);广东省重点领域研发计划项目(2020B1111040002)。

摘　　要：动态缆输送高压强电时会产生大量热量,导致缆体截面温度升高,从而影响其结构力学响应。本文针对浮式风机用动态缆截面进行了电热磁耦合温度场分析和热力多物理场耦合分析,验证了温度场对动态缆截面力学响应的影响。结果表明,在考虑电发热情况下,动态缆的截面极值应力相比于仅考虑力场情况下增加了80%,说明仅考虑力场的动态缆截面设计方法偏危险。因此,本文提出了考虑多场耦合情况下的浮式风机用动态缆截面耦合分析方法,可为浮式风机动态缆截面设计提供重要技术支持。When the dynamic cable delivers high-voltage electricity, a lot of heat is generated, which leads to increase of the cross-section temperature and affects the structural mechanical response. In this paper, the electric-thermal-magnetic coupling temperature field analysis and thermal-mechanical multi-physics field coupling analysis are carried out for the dynamic cable section of floating wind turbine, verifying the influence of temperature field on mechanical response of dynamic cable section. The results show that the extreme stress of dynamic cable section increases by 80% when electric heating is taken into account, compared with that when only force field is taken into account, indicating that the design method of dynamic cable section considering only static field is dangerous. Therefore, this paper proposes a coupling analysis method for dynamic cable cross-section for floating wind turbines considering the multi-field coupling, which can provide important technical support for the design of dynamic cable cross-sections for floating wind turbines.

关 键 词：浮式风机用动态缆 截面分析 温度场 多物理场耦合 载流量 热力耦合 有限元 力学响应 

分 类 号：TH6[机械工程—机械制造及自动化]